SimpleSpline Class Reference

#include <simpspl.h>

Class Description

See also

Class ShapeObject.

Description:

Defines a simple spline object class to make spline primitives easier to create. This class provides default implementations for most of the ShapeObject methods. The plug-in derived from SimpleSpline must only implement a handful of methods to create a shape plug-in.

SimpleSpline plug-ins use a Super Class ID of SHAPE_CLASS_ID.

Data Members:

IParamBlock *ipblock;

Interpolation parameter block (handled by SimpleSpline).

IParamBlock *pblock;

User's parameter block. See Class IParamBlock.

static IParamMap *ipmapParam;

The parameter map. See Class IParamMap.

static int dlgSteps;

The dialog steps settings.

static BOOL dlgOptimize;

The dialog Optimize toggle.

static BOOL dlgAdaptive;

The dialog Adaptive toggle.

BezierShape shape;

The Spline cache.

Interval ivalid;

The validity interval for the spline. See Class Interval.

BOOL suspendSnap;

Flag to suspend snapping used during creation.

static SimpleSpline *editOb;

This is the spline being edited in the command panel.

Inheritance diagram for SimpleSpline:

Public Member Functions
CoreExport void	UpdateShape (TimeValue t)
CoreExport	SimpleSpline ()
CoreExport	~SimpleSpline ()
void	ShapeInvalid ()
CoreExport int	HitTest (TimeValue t, INode *inode, int type, int crossing, int flags, IPoint2 *p, ViewExp *vpt)
	This method is called to determine if the specified screen point intersects the item. More...
CoreExport void	Snap (TimeValue t, INode *inode, SnapInfo *snap, IPoint2 *p, ViewExp *vpt)
	Checks the point passed for a snap and updates the SnapInfo structure. More...
CoreExport int	Display (TimeValue t, INode *inode, ViewExp *vpt, int flags)
	This method displays the shape's generated mesh if necessary. More...
virtual CoreExport void	BeginEditParams (IObjParam *ip, ULONG flags, Animatable *prev)
	This method allows the ShapeObject to create its new "Rendering" rollup. More...
virtual CoreExport void	EndEditParams (IObjParam *ip, ULONG flags, Animatable *next)
IParamArray *	GetParamBlock ()
	An object or modifier should implement this method if it wishes to make its parameter block available for other plug-ins to access it. More...
CoreExport int	GetParamBlockIndex (int id)
	If a plug-in makes its parameter block available (using GetParamBlock()) then it will need to provide #defines for indices into the parameter block. More...
CoreExport ObjectState	Eval (TimeValue time)
	This method is called to evaluate the object and return the result as an ObjectState. More...
CoreExport Interval	ObjectValidity (TimeValue t)
	This method returns the validity interval of the object as a whole at the specified time. More...
CoreExport int	CanConvertToType (Class_ID obtype)
	Indicates whether the object can be converted to the specified type. More...
CoreExport Object *	ConvertToType (TimeValue t, Class_ID obtype)
	This method converts this object to the type specified and returns a pointer it. More...
CoreExport void	GetCollapseTypes (Tab< Class_ID > &clist, Tab< MSTR * > &nlist)
	When the user clicks on the Edit Stack button in the modify branch a list of 'Convert To:' types is presented. More...
CoreExport void	BuildMesh (TimeValue t, Mesh &mesh)
CoreExport void	GetWorldBoundBox (TimeValue t, INode *inode, ViewExp *vpt, Box3 &box)
	This method returns the world space bounding box for Objects (see below for the Sub-object gizmo or Modifiers gizmo version). More...
CoreExport void	GetLocalBoundBox (TimeValue t, INode *inode, ViewExp *vxt, Box3 &box)
	This is the object space bounding box, the box in the object's local coordinates. More...
CoreExport void	GetDeformBBox (TimeValue t, Box3 &box, Matrix3 *tm, BOOL useSel)
	This method computes the bounding box in the objects local coordinates or the optional space defined by tm. More...
CoreExport int	NumberOfVertices (TimeValue t, int curve)
	This method is used by the Summary Info and Object Properties dialogs to inform the user how many vertices or CVs are in the object. More...
CoreExport int	NumberOfCurves (TimeValue t) override
	Returns the number of polygons in the shape at the given time. More...
CoreExport BOOL	CurveClosed (TimeValue t, int curve)
	This method is called to determine if the specified curve of the shape is closed at the time passed. More...
CoreExport Point3	InterpCurve3D (TimeValue t, int curve, float param, int ptype=PARAM_SIMPLE)
	This method returns a point interpolated on the entire curve. More...
CoreExport Point3	TangentCurve3D (TimeValue t, int curve, float param, int ptype=PARAM_SIMPLE)
	This method returns a tangent vector interpolated on the entire curve. More...
CoreExport float	LengthOfCurve (TimeValue t, int curve)
	Returns the length of the specified curve. More...
CoreExport int	NumberOfPieces (TimeValue t, int curve)
	Returns the number of sub-curves in a curve. More...
CoreExport Point3	InterpPiece3D (TimeValue t, int curve, int piece, float param, int ptype=PARAM_SIMPLE)
	This method returns the interpolated point along the specified sub-curve (segment). More...
CoreExport Point3	TangentPiece3D (TimeValue t, int curve, int piece, float param, int ptype=PARAM_SIMPLE)
	Returns the tangent vector on a sub-curve at the specified 'distance' along the curve. More...
CoreExport MtlID	GetMatID (TimeValue t, int curve, int piece)
	This method provides access to the material IDs of the shape. More...
BOOL	CanMakeBezier ()
	This method is called to determine if the shape can be converted to a bezier representation. More...
CoreExport void	MakeBezier (TimeValue t, BezierShape &shape)
	Creates the bezier representation of the shape. More...
CoreExport ShapeHierarchy &	OrganizeCurves (TimeValue t, ShapeHierarchy *hier=NULL)
	This method is called to prepare the shape for lofting, extrusion, etc. More...
CoreExport void	MakePolyShape (TimeValue t, PolyShape &shape, int steps=PSHAPE_BUILTIN_STEPS, BOOL optimize=FALSE)
	Create a PolyShape representation with optional fixed steps. More...
CoreExport int	MakeCap (TimeValue t, MeshCapInfo &capInfo, int capType)
	This method generates a mesh capping info for the shape. More...
CoreExport int	MakeCap (TimeValue t, PatchCapInfo &capInfo)
	This method creates a patch cap info out of the shape. More...
int	NumRefs ()
	The ShapeObject makes 1 reference; this is where it tells the system. More...
CoreExport RefTargetHandle	GetReference (int i)
	This method allows the ShapeObject to return a pointer to its parameter block. More...
CoreExport RefResult	NotifyRefChanged (const Interval &changeInt, RefTargetHandle hTarget, PartID &partID, RefMessage message, BOOL propagate)
	This method will notify the Shape Object of changes in values in its parameter block. More...
CoreExport void	ReadyInterpParameterBlock ()
void	UnReadyInterpParameterBlock ()
MAX_DEPRECATED void	SimpleSplineClone (SimpleSpline *ssplSource)
CoreExport void	SimpleSplineClone (SimpleSpline *ssplSource, RemapDir &remap)
int	NumSubs ()
CoreExport Animatable *	SubAnim (int i)
	This method returns the ShapeObject's animatable pointer. More...
CoreExport MSTR	SubAnimName (int i)
	This method returns the name of the animatable's name. More...
CoreExport void	DeleteThis ()
	Deletes an instance of this class. More...
CoreExport void	FreeCaches ()
CoreExport IOResult	Save (ISave *isave)
	Implemented by the System. More...
CoreExport IOResult	Load (ILoad *iload)
	Implemented by the System. More...
LRESULT CALLBACK	TrackViewWinProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
	This function is obsolete. More...
void	GetClassName (MSTR &s)
void	InitNodeName (MSTR &s)
virtual Class_ID	ClassID ()=0
virtual void	BuildShape (TimeValue t, BezierShape &ashape)=0
virtual RefTargetHandle	Clone (RemapDir &remap)=0
virtual CreateMouseCallBack *	GetCreateMouseCallBack ()=0
virtual BOOL	ValidForDisplay (TimeValue t)=0
virtual void	InvalidateUI ()
virtual ParamDimension *	GetParameterDim (int pbIndex)
virtual MSTR	GetParameterName (int pbIndex)
virtual BOOL	DisplayVertTicksDuringCreation ()
Public Member Functions inherited from ShapeObject
CoreExport	ShapeObject ()
CoreExport	~ShapeObject ()
virtual CoreExport BaseInterface *	GetInterface (Interface_ID iid)
	Inherited from Animatable. More...
virtual CoreExport void *	GetInterface (ULONG id)
	Inherited from Animatable. More...
virtual CoreExport unsigned long	GetObjectDisplayRequirement () const
virtual CoreExport bool	PrepareDisplay (const MaxSDK::Graphics::UpdateDisplayContext &prepareDisplayContext)
virtual BOOL	IsShapeObject ()
virtual int	IntersectRay (TimeValue t, Ray &ray, float &at, Point3 &norm)
	Computes the intersection point of the ray passed and the shape. More...
SClass_ID	SuperClassID ()
	Retrieves a constant representing the type of the plugin. More...
virtual CoreExport int	IsRenderable ()
	Indicates whether the object may be rendered. More...
virtual CoreExport void	CopyBaseData (ShapeObject &from)
	In order to simplify things for subclasses of ShapeObject, this method is now available. More...
CoreExport float	GetThickness (TimeValue t, Interval &ivalid)
	Implemented by the System. More...
CoreExport int	GetSides (TimeValue t, Interval &ivalid)
	This method returns the number of sides for the cross-section of the rendering mesh version of the shape for the specified time. More...
CoreExport float	GetAngle (TimeValue t, Interval &ivalid)
	This method returns the angle that the cross-section of the rendering mesh will be rotated to, for the specified time. More...
CoreExport float	GetViewportThickness ()
	This method returns the thickness of the viewport version of the rendering mesh. More...
CoreExport int	GetViewportSides ()
	This method returns the number of sides for the cross-section for the viewport version of the rendering mesh. More...
CoreExport float	GetViewportAngle ()
	This method returns the angle that the cross-section of the viewport version of the rendering mesh will be rotated to. More...
CoreExport BOOL	GetRenderable ()
	Implemented by the System. More...
CoreExport BOOL	GetGenUVs ()
	Implemented by the System. More...
CoreExport BOOL	GetDispRenderMesh ()
	This method returns TRUE if the "Display Render Mesh" switch is on. More...
CoreExport BOOL	GetUseViewport ()
	This method returns TRUE if the "Use Viewport Settings" switch is on. More...
CoreExport BOOL	GetViewportOrRenderer ()
	This method returns the value of the Viewport/Render switch and either returns GENMESH_VIEWPORT or GENMESH_RENDER. More...
CoreExport void	SetThickness (TimeValue t, float thick)
	Implemented by the System. More...
CoreExport void	SetSides (TimeValue t, int s)
	This method allows you to set the number of sides for the rendering mesh version of the shape for the specified time. More...
CoreExport void	SetAngle (TimeValue t, float a)
	This method allows you to set the cross-section rotation angle for the rendering mesh version of the shape, in degrees, for the specified time. More...
CoreExport void	SetViewportThickness (float thick)
CoreExport void	SetViewportSides (int s)
	This method allows you to set the number of sides for the viewport version of the rendering mesh. More...
CoreExport void	SetViewportAngle (float a)
	This method allows you to set the angle that the cross-section of the viewport version of the rendering mesh will be rotated to, in degrees. More...
CoreExport void	SetRenderable (BOOL sw)
	Implemented by the System. More...
CoreExport void	SetGenUVs (BOOL sw)
	Implemented by the System. More...
CoreExport void	SetDispRenderMesh (BOOL sw)
	This method allows you to turn the "Display Render Mesh" switch on or off. More...
CoreExport void	SetUseViewport (BOOL sw)
	This method allows you to turn the "Use Viewport Settings" switch on or off. More...
CoreExport void	SetViewportOrRenderer (BOOL sw)
	This method allows you to set the value of the Viewport/Render switch. More...
virtual CoreExport Mesh *	GetRenderMesh (TimeValue t, INode *inode, View &view, BOOL &needDelete)
	This method should be implemented by all renderable GeomObjects. More...
virtual CoreExport void	GetRenderMeshInfo (TimeValue t, INode *inode, View &view, int &nverts, int &nfaces)
	Returns information on the rendering mesh. More...
virtual CoreExport void	GenerateMesh (TimeValue t, int option, Mesh *mesh)
	This method will generate a mesh based on either the viewport or rendering parameters for the specified time. More...
virtual MAX_DEPRECATED int	NumberOfCurves ()
	Returns the number of polygons in the shape. More...
virtual BOOL	AttachShape (TimeValue t, INode *thisNode, INode *attachNode, BOOL weldEnds=FALSE, float weldThreshold=0.0f)
	This method is called to attach the shape of attachNode to thisNode at the specified time. More...
virtual BOOL	HasUVW ()
	Call this method to find out if the object has UVW coordinates. More...
virtual BOOL	HasUVW (int mapChannel)
	Call this method to find out if the object is has UVW coordinates for the specified mapping channel. More...
virtual void	SetGenUVW (BOOL sw)
	This method is called to change the state of its Generate UVW boolean. More...
virtual void	SetGenUVW (int mapChannel, BOOL sw)
	This method is called to change the state of its Generate UVW boolean for the specified mapping channel. More...
virtual CoreExport bool	SpecifySaveReferences (ReferenceSaveManager &referenceSaveManager)
	Implemented by the System. More...
virtual CoreExport Class_ID	PreferredCollapseType ()
	Implemented by the System. More...
virtual CoreExport BOOL	GetExtendedProperties (TimeValue t, MSTR &prop1Label, MSTR &prop1Data, MSTR &prop2Label, MSTR &prop2Data)
	Implemented by the System. More...
virtual CoreExport void	RescaleWorldUnits (float f)
	Implemented by the System. More...
CoreExport ParamDimension *	GetParameterDim (int pbIndex)
	This method returns the parameter dimension of the parameter whose index is passed. More...
CoreExport MSTR	GetParameterName (int pbIndex)
	This method returns the name of the parameter whose index is passed. More...
virtual CoreExport int	RemapRefOnLoad (int iref)
	This method remaps references at load time so that files saved from previous versions of 3ds Max get their references adjusted properly to allow for the new ShapeObject reference. More...
CoreExport Interval	GetShapeObjValidity (TimeValue t)
	This method gets the validity interval for the ShapeObject's internal parameters only. More...
virtual CoreExport int	HitTest (TimeValue t, INode *inode, int type, int crossing, int flags, IPoint2 *p, ViewExp *vpt, ModContext *mc)
	This method is used in modifier gizmo hit testing. More...
virtual CoreExport Box3	GetBoundingBox (TimeValue t, Matrix3 *tm=NULL)
	This method returns a bounding box for the shape, if it's active, if the "Display Render Mesh" switch is on. More...
virtual CoreExport void	InvalidateGeomCache ()
	This method is very important - It causes the ShapeObject to flush its cached rendering mesh. More...
int	SetProperty (ULONG id, void *data)
	Associates data passed in to given id. More...
void *	GetProperty (ULONG id)
	Retrieves data associated with id. More...
CoreExport BOOL	GetUsePhysicalScaleUVs ()
	Queries whether if real world texture size is used or not. More...
CoreExport void	SetUsePhysicalScaleUVs (BOOL flag)
	Sets whether real world texture size is used or not. More...
CoreExport BOOL	GetTwistCorrect ()
	Queries the twist correction switch. More...
CoreExport void	SetTwistCorrect (BOOL flag)
	Sets the twist correction switch. More...
CoreExport BOOL	GetCap ()
	Queries the main capping switch. More...
CoreExport void	SetCap (BOOL flag)
	Sets the main capping switch. More...
CoreExport BOOL	GetQuadCap ()
	Queries the quad capping switch. More...
CoreExport void	SetQuadCap (BOOL flag)
	Sets the quad capping switch. More...
CoreExport int	GetCapSegments (TimeValue t, Interval &ivalid)
	Get/Set the cap segments count. More...
CoreExport void	SetCapSegments (TimeValue t, int count)
	Sets the cap segments value for the specified time. More...
CoreExport float	GetSphereCap (TimeValue t, Interval &ivalid)
	Get/Set the sphere capping value used in quad capping. More...
CoreExport void	SetSphereCap (TimeValue t, float value)
	Sets the sphere capping value (0-1). More...
Public Member Functions inherited from GeomObject
virtual int	IsInstanceDependent ()
	If an object creates different meshes depending on the particular instance (view-dependent) it should return nonzero; otherwise 0. More...
virtual int	NumberOfRenderMeshes ()
	Objects may supply multiple render meshes ( e.g. More...
virtual Mesh *	GetMultipleRenderMesh (TimeValue t, INode *inode, View &view, BOOL &needDelete, int meshNumber)
	For multiple render meshes, this method must be implemented. More...
virtual void	GetMultipleRenderMeshTM (TimeValue t, INode *inode, View &view, int meshNumber, Matrix3 &meshTM, Interval &meshTMValid)
	For multiple render meshes, this method must be implemented. More...
virtual CoreExport PatchMesh *	GetRenderPatchMesh (TimeValue t, INode *inode, View &view, BOOL &needDelete)
	This method provides a patch mesh representation of the object for use by the renderer. More...
virtual BOOL	CanDoDisplacementMapping ()
	Returns TRUE if this object can do displacement mapping; otherwise FALSE. More...
Public Member Functions inherited from Object
CoreExport	Object ()
CoreExport	~Object ()
virtual int	UsesWireColor ()
	This method determines if the object color is used for display. More...
virtual int	DoOwnSelectHilite ()
	If an object wants to draw itself in the 3D viewports in its selected state in some custom manner this method should return nonzero. More...
virtual BOOL	NormalAlignVector (TimeValue t, Point3 &pt, Point3 &norm)
	Objects that don't support the IntersectRay() method (such as helper objects) can implement this method to provide a default vector for use with the normal align command in 3ds Max. More...
void	LockObject ()
	Implemented by the System. More...
void	UnlockObject ()
	Implemented by the System. More...
int	IsObjectLocked ()
	Implemented by the System. More...
void	LockChannels (ChannelMask channels)
	Implemented by the System. More...
void	UnlockChannels (ChannelMask channels)
	Implemented by the System. More...
ChannelMask	GetChannelLocks ()
	Implemented by the System. More...
void	SetChannelLocks (ChannelMask channels)
	Implemented by the System. More...
ChannelMask	GetChannelLocks (ChannelMask m)
	Implemented by the System. More...
virtual BOOL	CanCacheObject ()
	This method determines if this object can have channels cached. More...
virtual void	WSStateInvalidate ()
	This is called by a node when the node's world space state has become invalid. More...
virtual BOOL	IsWorldSpaceObject ()
	Returns TRUE if the object as a world space object; otherwise FALSE. More...
CoreExport INode *	GetWorldSpaceObjectNode ()
virtual BOOL	IsParticleSystem ()
CoreExport void	CopyChannelLocks (Object *obj, ChannelMask needChannels)
	Implemented by the System. More...
virtual void	TopologyChanged ()
virtual int	IsDeformable ()
	Indicates whether this object is deformable. More...
virtual int	NumPoints ()
	The points of a deformable object are accessed through a virtual array interface. More...
virtual Point3	GetPoint (int i)
	The points of a deformable object are accessed through a virtual array interface. More...
virtual void	SetPoint (int i, const Point3 &p)
	The points of a deformable object are accessed through a virtual array interface. More...
virtual BOOL	IsPointSelected (int i)
	Returns TRUE if the 'i-th' point is selected; otherwise FALSE. More...
virtual float	PointSelection (int i)
	Returns a floating point weighted point selection if the object supports it. More...
virtual BOOL	HasWeights ()
	Returns TRUE if the object has weights for its points that can be set; otherwise FALSE. More...
virtual double	GetWeight (int i)
	Returns the weight of the specified point of the object. More...
virtual void	SetWeight (int i, const double w)
	Sets the weight of the specified point. More...
virtual BOOL	PolygonCount (TimeValue t, int &numFaces, int &numVerts)
	Retreives the number of faces and vertices of the polyginal mesh representation of this object. More...
virtual void	PointsWereChanged ()
	Informs the object that its points have been deformed, so it can invalidate its cache. More...
virtual CoreExport void	Deform (Deformer *defProc, int useSel=0)
	This is the method used to deform the object with a deformer. More...
virtual int	IsMappable ()
	This method lets you know if the ApplyUVWMap() method is available for this object. More...
virtual int	NumMapChannels ()
	Returns the maximum number of channels supported by this type of object. More...
virtual int	NumMapsUsed ()
	Returns the number of maps currently used by this object. More...
virtual void	ApplyUVWMap (int type, float utile, float vtile, float wtile, int uflip, int vflip, int wflip, int cap, const Matrix3 &tm, int channel=1)
	This method may be called to map the object with UVW mapping coordinates. More...
virtual Object *	CollapseObject ()
	This method is called on the world space cache object when the stack gets collapsed, that lets the pipeline object decide, if it wants to return a different object than itself. More...
virtual DWORD	GetSubselState ()
	For objects that have sub selection levels, this method returns the current selection level of the object. More...
virtual void	SetSubSelState (DWORD s)
CoreExport void	ReadyChannelsForMod (ChannelMask channels)
	Implemented by the System. More...
virtual CoreExport Interval	ChannelValidity (TimeValue t, int nchan)
	Retrieve the current validity interval for the nchan channel of the object. More...
virtual CoreExport void	SetChannelValidity (int nchan, Interval v)
	Sets the validity interval of the specified channel. More...
virtual CoreExport void	InvalidateChannels (ChannelMask channels)
	This method invalidates the intervals for the given channel mask. More...
virtual Object *	MakeShallowCopy (ChannelMask channels)
	This method must make a copy of its "shell" and then shallow copy (see below) only the specified channels. More...
virtual CoreExport void	ShallowCopy (Object *fromOb, ChannelMask channels)
	This method copies the specified channels from the fromOb to this and copies the validity intervals. More...
virtual CoreExport void	FreeChannels (ChannelMask channels)
	This method deletes the memory associated with the specified channels and set the intervals associated with the channels to invalid (empty). More...
virtual CoreExport void	NewAndCopyChannels (ChannelMask channels)
	This method replaces the locked channels with newly allocated copies. More...
virtual CoreExport void	MaybeEnlargeViewportRect (GraphicsWindow *gw, Rect &rect)
	This method allows the object to enlarge its viewport rectangle, if it wants to. More...
CoreExport bool	IsBaseClassOwnedChannel (int nchan)
CoreExport void	UpdateValidity (int nchan, Interval v)
	When a modifier is applied to an object, it needs to include its own validity interval in the interval of the object. More...
Interval	GetNoEvalInterval ()
void	SetNoEvalInterval (Interval iv)
virtual CoreExport void	ReduceCaches (TimeValue t)
	This method give the object the chance to reduce its caches. More...
virtual int	IsConstObject ()
	This is called to determine if this is a construction object or not. More...
virtual int	NumPipeBranches (bool selected=true)
	This method returns the number of pipeline branches combined by the object. More...
virtual Object *	GetPipeBranch (int i, bool selected=true)
	Retrieves sub-object branches from an object that supports branching. More...
virtual INode *	GetBranchINode (TimeValue t, INode *node, int i, bool selected=true)
	When an object has sub-object branches, it is likely that the sub-objects are transformed relative to the object. More...
virtual int	NumberOfContainedShapes ()
	Returns the number of shapes contained inside this object. More...
virtual ShapeObject *	GetContainedShape (TimeValue t, int index)
	This method returns the ShapeObject specified by the index passed at the time specified. More...
virtual void	GetContainedShapeMatrix (TimeValue t, int index, Matrix3 &mat)
	Returns the matrix associated with the shape whose index is passed. More...
virtual BitArray	ContainedShapeSelectionArray ()
	This is used by the lofter. More...
virtual BOOL	CheckObjectIntegrity ()
	This method is used for debugging only. More...
virtual Object *	FindBaseObject ()
	It is called to return a pointer to the base object (an object that is not a derived object). More...
virtual BOOL	IsParamSurface ()
	There are several methods used to access a parametric position on the surface of the object. More...
virtual int	NumSurfaces (TimeValue t)
	Returns the number of parametric surfaces within the object. More...
virtual Point3	GetSurfacePoint (TimeValue t, float u, float v, Interval &iv)
	This method needs to be implemented if Object::IsParamSurface() returns TRUE. More...
virtual Point3	GetSurfacePoint (TimeValue t, int surface, float u, float v, Interval &iv)
	This method is used to retrieve a point on the specified surface of the object based on two parameters of the surface, u and v. More...
virtual void	SurfaceClosed (TimeValue t, int surface, BOOL &uClosed, BOOL &vClosed)
	This method allows the object to return flags that indicate whether the parametric surface is closed in the U and V dimensions. More...
CoreExport SvGraphNodeReference	SvTraverseAnimGraph (IGraphObjectManager *gom, Animatable *owner, int id, DWORD flags)
CoreExport bool	SvHandleDoubleClick (IGraphObjectManager *gom, IGraphNode *gNode)
CoreExport MSTR	SvGetName (IGraphObjectManager *gom, IGraphNode *gNode, bool isBeingEdited)
CoreExport COLORREF	SvHighlightColor (IGraphObjectManager *gom, IGraphNode *gNode)
CoreExport bool	SvIsSelected (IGraphObjectManager *gom, IGraphNode *gNode)
	Returns true if the object is selected in its schematic view. More...
CoreExport MultiSelectCallback *	SvGetMultiSelectCallback (IGraphObjectManager *gom, IGraphNode *gNode)
CoreExport bool	SvCanSelect (IGraphObjectManager *gom, IGraphNode *gNode)
CoreExport void	AddXTCObject (XTCObject *pObj, int priority=0, int branchID=-1)
	This method adds an extension object into the pipeline. More...
CoreExport int	NumXTCObjects ()
	Returns the number of extension objects maintained by this Object. More...
CoreExport XTCObject *	GetXTCObject (int index)
	Returns a pointer to the specified extension object. More...
CoreExport void	RemoveXTCObject (int index)
	Removes the extension object as indicated by the index. More...
CoreExport void	SetXTCObjectPriority (int index, int priority)
	Sets the priority for the extension object whose index is passed. More...
CoreExport int	GetXTCObjectPriority (int index)
	Returns the integer priority number of the extension object whose index is passed. More...
CoreExport void	SetXTCObjectBranchID (int index, int branchID)
	Sets the branch ID of the extension object whose index is passed. More...
CoreExport int	GetXTCObjectBranchID (int index)
	Returns the integer branch ID of the extension object whose index is passed. More...
CoreExport void	MergeAdditionalChannels (Object *from, int branchID)
	This method has to be called whenever the CompoundObject updates a branch (calling Eval() on it). More...
CoreExport void	BranchDeleted (int branchID, bool reorderChannels)
	This method has to be called on the CompoundObject so it can delete the XTCObjects for the specified branch. More...
CoreExport void	CopyAdditionalChannels (Object *from, bool deleteOld=true, bool bShallowCopy=false)
	This method copies all extension objects from the "from" object into the current object. More...
CoreExport void	DeleteAllAdditionalChannels ()
	Implemented by the System. More...
virtual BOOL	UseSelectionBrackets ()
	This method allows an object to choose whether or not it will display selection brackets in shaded viewports. More...
virtual BOOL	IsManipulator ()
virtual void	ReduceDisplayCaches ()
	Should reduce any derived display data to save memory, since the node wont be drawn until the user undhides it. More...
virtual bool	NeedGWCacheRebuilt (GraphicsWindow *gw, Material *ma, int numMat)
	This returns whether the Graphics Cache for this object needs to be rebuilt. More...
virtual void	BuildGWCache (GraphicsWindow *gw, Material *ma, int numMat, BOOL threaded)
	This builds the graphics window cached mesh. More...
virtual void	StartStackEval ()
	This are called right before and after a modifier is applied to an object. More...
virtual void	EndStackEval ()
Public Member Functions inherited from BaseObject
virtual CoreExport bool	UpdatePerViewItems (const MaxSDK::Graphics::UpdateDisplayContext &updateDisplayContext, MaxSDK::Graphics::UpdateNodeContext &nodeContext, MaxSDK::Graphics::UpdateViewContext &viewContext, MaxSDK::Graphics::IRenderItemContainer &targetRenderItemContainer)
virtual CoreExport const MaxSDK::Graphics::RenderItemHandleArray &	GetRenderItems () const
CoreExport	BaseObject ()
virtual CoreExport	~BaseObject ()
virtual BOOL	HasViewDependentBoundingBox ()
	This method return true if GetWorldBoundBox returns different boxes for different viewports. More...
virtual void	SetExtendedDisplay (int flags)
	This method is used for storing mode-dependent display attributes. More...
virtual const MCHAR *	GetObjectName ()
virtual CoreExport BOOL	OKToChangeTopology (MSTR &modName)
	Implemented by the System. More...
virtual BOOL	ChangeTopology ()
	This method asks the question of an object or modifier "Do you change topology"? An object or modifier returns TRUE if it is capable of changing topology when its parameters are being edited; otherwise FALSE. More...
virtual void	ForceNotify (Interval &i)
	Notifies dependents of a change. More...
virtual IParamBlock2 *	GetParamBlock (int i) override
virtual void	Move (TimeValue t, Matrix3 &partm, Matrix3 &tmAxis, Point3 &val, BOOL localOrigin=FALSE)
	When this method is called the plug-in should respond by moving its selected sub-object components. More...
virtual void	Rotate (TimeValue t, Matrix3 &partm, Matrix3 &tmAxis, Quat &val, BOOL localOrigin=FALSE)
	When this method is called the plug-in should respond by rotating its selected sub-object components. More...
virtual void	Scale (TimeValue t, Matrix3 &partm, Matrix3 &tmAxis, Point3 &val, BOOL localOrigin=FALSE)
	When this method is called the plug-in should respond by scaling its selected sub-object components. More...
virtual void	TransformStart (TimeValue t)
	This method is called before the first Move(), Rotate() or Scale() call and before a hold is in effect. More...
virtual void	TransformHoldingStart (TimeValue t)
	This method is called before the first Move(), Rotate() or Scale() call and after a hold is in effect. More...
virtual void	TransformHoldingFinish (TimeValue t)
	This method is called after the user has completed the Move(), Rotate() or Scale() operation and before the undo object has been accepted. More...
virtual void	TransformFinish (TimeValue t)
	This method is called after the user has completed the Move(), Rotate() or Scale() operation and the undo object has been accepted. More...
virtual void	TransformCancel (TimeValue t)
	This method is called when the transform operation is canceled by a right-click and the undo has been canceled. More...
virtual int	Display (TimeValue t, INode *inode, ViewExp *vpt, int flags, ModContext *mc)
	When this method is called the plug-in should respond by performing a quick render of the modifier gizmo in viewport using the current TM. More...
virtual void	GetWorldBoundBox (TimeValue t, INode *inode, ViewExp *vpt, Box3 &box, ModContext *mc)
	This method computes the world space bounding box of the modifier gizmo (or any object that when in sub-object mode has a gizmo). More...
virtual void	CloneSelSubComponents (TimeValue t)
	This method is called to make a copy of the selected sub-object components of the item. More...
virtual void	AcceptCloneSelSubComponents (TimeValue t)
	This method is called when the user mouses up after shift-cloning a sub-object selection. More...
virtual void	SelectSubComponent (HitRecord *hitRec, BOOL selected, BOOL all, BOOL invert=FALSE)
	This method is called to change the selection state of the component identified by hitRec. More...
virtual void	ClearSelection (int selLevel)
	This method is called to clear the selection for the given sub-object level. More...
virtual void	SelectAll (int selLevel)
	This method is called to select every element of the given sub-object level. More...
virtual void	InvertSelection (int selLevel)
	This method is called to invert the specified sub-object level. More...
virtual int	SubObjectIndex (HitRecord *hitRec)
	Returns the index of the sub-object element identified by the HitRecord hitRec. More...
virtual void	ActivateSubobjSel (int level, XFormModes &modes)
	When the user changes the selection of the sub-object drop down, this method is called to notify the plug-in. More...
virtual BOOL	SupportsNamedSubSels ()
	An object that supports sub-object selection can choose to support named sub object selection sets. More...
virtual void	ActivateSubSelSet (MSTR &setName)
	When the user chooses a name from the drop down list this method is called. More...
virtual void	NewSetFromCurSel (MSTR &setName)
	If the user types a new name into the named selection set drop down then this method is called. More...
virtual void	RemoveSubSelSet (MSTR &setName)
	If the user selects a set from the drop down and then chooses Remove Named Selections from the Edit menu this method is called. More...
virtual void	SetupNamedSelDropDown ()
	To support the Edit Named Selections dialog, plug-ins must implement this method. More...
virtual int	NumNamedSelSets ()
	To support the Edit Named Selections dialog, plug-ins must implement this method. More...
virtual MSTR	GetNamedSelSetName (int i)
	To support the Edit Named Selections dialog, plug-ins must implement this method. More...
virtual void	SetNamedSelSetName (int i, MSTR &newName)
	To support the Edit Named Selections dialog, plug-ins must implement this method. More...
virtual void	NewSetByOperator (MSTR &newName, Tab< int > &sets, int op)
	To support the Edit Named Selections dialog, plug-ins must implement this method. More...
virtual void	GetSubObjectCenters (SubObjAxisCallback *cb, TimeValue t, INode *node, ModContext *mc)
	When the user is in a sub-object selection level, the system needs to get the reference coordinate system definition from the current modifier being edited so that it can display the axis. More...
virtual void	GetSubObjectTMs (SubObjAxisCallback *cb, TimeValue t, INode *node, ModContext *mc)
	When the user is in a sub-object selection level, the system needs to get the reference coordinate system definition from the current modifier being edited so that it can display the axis. More...
virtual void	NotifyPreCollapse (INode *node, IDerivedObject *derObj, int index)
	This method is called before a modifier or object is collapsed. More...
virtual void	NotifyPostCollapse (INode *node, Object *obj, IDerivedObject *derObj, int index)
	This method is called after a modifier or object is collapsed. More...
virtual int	NumSubObjTypes ()
	Objects and modifiers that support subobjects have to overwrite this method - as well as GetSubObjType() - and return a class derived from ISubObjType in GetSubObjType(). More...
virtual ISubObjType *	GetSubObjType (int i)
	Returns a pointer to the sub-object type for the sub-object whose index is passed. More...
virtual CoreExport int	GetSubObjectLevel ()
	This method returns an integer which indicates the current sub-object level of the modifier or base object. More...
virtual void	ShowEndResultChanged (BOOL showEndResult)
	This method notifies the BaseObject that the end result display has been switched (the "Show End Result" button has been toggled). More...
Public Member Functions inherited from ReferenceTarget
virtual BOOL	IsRefTarget ()
	Checks if this is a ReferenceTarget. More...
CoreExport RefResult	TestForLoop (const Interval &refInterval, RefMakerHandle hmaker)
	Tests for a cyclical reference. More...
CoreExport BOOL	HasDependents ()
	Checks if a ReferenceTarget has references. More...
CoreExport BOOL	HasRealDependents ()
	Checks if this has Real (Strong) Dependents. More...
void	BeginDependencyTest ()
	Starts Dependency Test. More...
BOOL	EndDependencyTest ()
	Ends Dependency Test. More...
virtual void	RefAdded (RefMakerHandle rm)
	Called after a reference is made to a target. More...
virtual void	RefAddedUndoRedo (RefMakerHandle rm)
	Called after a reference is made to a target because of undo or redo. More...
virtual void	RefDeleted ()
	Called after a references to this is deleted. More...
virtual void	RefDeletedUndoRedo ()
	Called after a references to this is deleted because of undo or redo. More...
CoreExport RefResult	DeleteAllRefsToMe ()
	Deletes all references to this ReferenceTarget. More...
CoreExport RefResult	TransferReferences (RefTargetHandle oldTarget, BOOL delOld=FALSE)
	Transfers all the references from oldTarget to this. More...
CoreExport int	DoEnumDependents (DependentEnumProc *dep)
	Begins an enumeration that searches back in the dependency network. More...
virtual CoreExport void	BaseClone (ReferenceTarget *from, ReferenceTarget *to, RemapDir &remap)
	This method copies base class data from an object to its clone. More...
virtual CoreExport RefResult	NotifyDependents (const Interval &changeInt, PartID partID, RefMessage message, SClass_ID sclass=NOTIFY_ALL, BOOL propagate=TRUE, RefTargetHandle hTarg=NULL, NotifyDependentsOption notifyDependentsOption=REFNOTIFY_ALLOW_OPTIMIZATIONS)
	Notify all dependent RefMakers concerned with the message. More...
void	FlagDependents (TimeValue t, PartID which=PART_PUT_IN_FG)
	This sends the REFMSG_FLAGDEPENDENTS message up the pipeline. More...
virtual void	NotifyForeground (TimeValue t)
	This method is called to flag dependents into the FG. More...
virtual void	NotifyTarget (int message, ReferenceMaker *hMaker)
	Sends messages to ReferenceTargets. More...
CoreExport	ReferenceTarget ()
	Constructor. More...
virtual CoreExport RefResult	AutoDelete ()
	Deletes the object when it has no more real dependents. More...
CoreExport RefResult	MaybeAutoDelete ()
	Deletes the object when it has no more real dependents. More...
Public Member Functions inherited from ReferenceMaker
CoreExport RefResult	ReplaceReference (int which, RefTargetHandle newtarg, BOOL delOld=TRUE)
	Used when cloning reference makers. More...
CoreExport RefResult	DeleteAllRefsFromMe ()
	Deletes all references from this ReferenceMaker. More...
CoreExport RefResult	DeleteAllRefs ()
	Deletes all references both to and from this item. More...
CoreExport RefResult	DeleteReference (int i)
	Deletes the specified reference. More...
virtual BOOL	CanTransferReference (int i)
	Tells whether this reference can be transfered. More...
CoreExport ReferenceSaveManager &	GetReferenceSaveManager ()
	Access the ReferenceSaveManager of this ReferenceMaker. More...
virtual CoreExport void	EnumAuxFiles (AssetEnumCallback &assetEnum, DWORD flags)
	Enumerate auxiliary files (e.g. bitmaps) More...
virtual CoreExport void	SaveEnum (SaveEnumProc &sep, BOOL isNodeCall=0)
	The default save enumeration. More...
CoreExport int	DoEnumDependents (DependentEnumProc *dep)
	Begins an enumeration that searches back in the dependency network. More...
CoreExport bool	EnumRefHierarchy (RefEnumProc &proc, bool includeCustAttribs=true, bool includeIndirectRefs=true, bool includeNonPersistentRefs=true, bool preventDuplicatesViaFlag=true)
	This method provides a general purpose reference enumerator. More...
CoreExport int	FindRef (RefTargetHandle rtarg)
	Get the index of the ReferenceTarget. More...
virtual BOOL	IsRefMaker ()
	Tells whether it is a ReferenceMaker. More...
virtual BOOL	IsRealDependency (ReferenceTarget *rtarg)
	Returns whether this is a "real" (strong) dependency or not. More...
virtual BOOL	ShouldPersistWeakRef (RefTargetHandle rtarg)
	Specifies whether a weak reference is to be persisted on a partial load or save. More...
CoreExport	ReferenceMaker ()
	Constructor. More...
CoreExport void	DeleteMe ()
	Deletes an instance of this class. More...
Public Member Functions inherited from Animatable
virtual int	NumChildren ()
virtual Animatable *	ChildAnim (int i)
virtual CoreExport MSTR	NodeName ()
virtual void	EditTrack ()
virtual CoreExport BOOL	SubAnimSetKeyBufferPresent (int subNum)
	returns true if the sub-anim has a "Set Key" buffer present More...
virtual BOOL	SetKeyBufferPresent ()
	returns true if there is a "Set Key" buffer present More...
virtual CoreExport void	SubAnimCommitSetKeyBuffer (TimeValue t, int subNum)
	Commit any "Set Key" buffers on the given sub-anim. More...
virtual void	CommitSetKeyBuffer (TimeValue t)
	Commit any "Set Key" buffers. More...
virtual CoreExport void	SubAnimRevertSetKeyBuffer (int subNum)
	Revert any "Set Key" buffers on the given sub-anim. More...
virtual void	RevertSetKeyBuffer ()
	Revert any "Set Key" buffers. More...
virtual bool	IsParamBlockDesc2Used (ParamBlockDesc2 *desc)
	Returns true if the passed description is being used. More...
virtual bool	GetMacroRecorderName (bool used_as_rhs_value, MSTR &objectSpecifiedName)
	This method is called to access the object specified name to use for the Maxscript macrorecorder. More...
CoreExport	Animatable ()
	Constructor. More...
MSTR	ClassName () const
	Returns the name of the plugin class. More...
virtual CoreExport void	ReleaseInterface (ULONG id, void *i)
CoreExport void	AppendProperty (AnimProperty *prop)
	A function to directly add arbitrary properties to this object developers should ensure that the properties ID does not conflict with any Max-specific IDs. More...
CoreExport AnimProperty *	FindProperty (DWORD id)
	Find any property. More...
CoreExport void	AddAppDataChunk (const Class_ID &cid, SClass_ID sid, DWORD sbid, DWORD len, void *data)
	Adds application/plugin specific (custom) data to an Animatable. More...
CoreExport AppDataChunk *	GetAppDataChunk (const Class_ID &cid, SClass_ID sid, DWORD sbid)
	Retrieves the application/plugin specific (custom) data stored with an Animatable. More...
CoreExport BOOL	RemoveAppDataChunk (const Class_ID &cid, SClass_ID sid, DWORD sbid)
	Deletes the application/plugin specific (custom) data stored with an Animatable. More...
CoreExport void	ClearAllAppData ()
	Deletes all application/plugin specific (custom) data stored with an Animatable. More...
virtual BOOL	CanDeleteSubAnim (int i)
virtual void	DeleteSubAnim (int i)
virtual DWORD	GetSubAnimCurveColor (int subNum)
virtual int	SubNumToRefNum (int subNum)
virtual BOOL	CanCopyAnim ()
CoreExport int	HasSubElements (int type=0)
virtual int	GetSubFCurveExtents (int subNum, ParamDimensionBase *dim, float &min, float &max, DWORD flags)
	The values max and min should be initialized before calling this function. More...
virtual ParamDimension *	GetParamDimension (int i)
virtual BOOL	SelectSubAnim (int subNum)
virtual BOOL	BypassTreeView ()
virtual BOOL	BypassTrackBar ()
virtual BOOL	BypassPropertyLevel ()
virtual BOOL	InvisibleProperty ()
virtual int	NumKeys ()
virtual TimeValue	GetKeyTime (int index)
virtual int	GetKeyIndex (TimeValue t)
virtual BOOL	GetNextKeyTime (TimeValue t, DWORD flags, TimeValue &nt)
virtual void	CopyKeysFromTime (TimeValue src, TimeValue dst, DWORD flags)
virtual void	DeleteKeyAtTime (TimeValue t)
virtual BOOL	IsKeyAtTime (TimeValue t, DWORD flags)
virtual int	GetKeyTimes (Tab< TimeValue > &times, Interval range, DWORD flags)
virtual int	GetKeySelState (BitArray &sel, Interval range, DWORD flags)
CoreExport void	OpenTreeEntry (int type, DWORD tv)
CoreExport void	CloseTreeEntry (int type, DWORD tv)
CoreExport int	IsTreeEntryOpen (int type, DWORD tv)
CoreExport BOOL	GetSelInTrackView (DWORD tv)
CoreExport void	SetSelInTrackView (DWORD tv, BOOL sel)
CoreExport BOOL	InTrackViewSelSet (int which)
CoreExport void	SetTrackViewSelSet (int which, BOOL inOut)
virtual BOOL	AssignController (Animatable *control, int subAnim)
virtual BOOL	CanAssignController (int subAnim)
	Return true if we can reassign the subanim specified. More...
virtual BOOL	CanMakeUnique ()
CoreExport int	EnumAnimTree (AnimEnum *animEnum, Animatable *client, int subNum)
virtual int	RenderBegin (TimeValue t, ULONG flags=0)
virtual int	RenderEnd (TimeValue t)
virtual CoreExport Interval	GetTimeRange (DWORD flags)
virtual void	EditTimeRange (Interval range, DWORD flags)
virtual void	DeleteTime (Interval iv, DWORD flags)
virtual void	ReverseTime (Interval iv, DWORD flags)
virtual void	ScaleTime (Interval iv, float s)
virtual void	InsertTime (TimeValue ins, TimeValue amount)
virtual BOOL	SupportTimeOperations ()
virtual CoreExport void	MapKeys (TimeMap *map, DWORD flags)
virtual void	DeleteKeys (DWORD flags)
virtual void	DeleteKeyByIndex (int index)
virtual void	SelectKeys (TrackHitTab &sel, DWORD flags)
virtual void	SelectSubKeys (int subNum, TrackHitTab &sel, DWORD flags)
virtual void	SelectSubCurve (int subNum, BOOL sel)
virtual void	SelectKeyByIndex (int i, BOOL sel)
virtual BOOL	IsKeySelected (int i)
virtual void	FlagKey (TrackHitRecord hit)
virtual int	GetFlagKeyIndex ()
virtual int	NumSelKeys ()
virtual void	CloneSelectedKeys (BOOL offset=FALSE)
virtual void	AddNewKey (TimeValue t, DWORD flags)
virtual void	MoveKeys (ParamDimensionBase *dim, float delta, DWORD flags)
virtual void	ScaleKeyValues (ParamDimensionBase *dim, float origin, float scale, DWORD flags)
virtual void	SelectCurve (BOOL sel)
virtual BOOL	IsCurveSelected ()
	Returns TRUE if the function curve is selected; otherwise returns FALSE. More...
virtual BOOL	IsSubCurveSelected (int subNum)
	Returns the selected state of the sub-curve whose index is passed. More...
virtual int	GetSelKeyCoords (TimeValue &t, float &val, DWORD flags)
virtual void	SetSelKeyCoords (TimeValue t, float val, DWORD flags)
virtual int	SetSelKeyCoordsExpr (ParamDimension *dim, const MCHAR *timeExpr, const MCHAR *valExpr, DWORD flags)
virtual void	AdjustTangents (TrackHitRecord hit, ParamDimensionBase *dim, Rect &rcGraph, float tzoom, int tscroll, float vzoom, int vscroll, int dx, int dy, DWORD flags)
virtual void	AdjustTangents (TrackHitRecord hit, ParamDimensionBase *dim, float angle, float length, DWORD flags)
virtual CoreExport BOOL	IsAnimated ()
virtual BOOL	CanCopyTrack (Interval iv, DWORD flags)
virtual BOOL	CanPasteTrack (TrackClipObject *cobj, Interval iv, DWORD flags)
virtual TrackClipObject *	CopyTrack (Interval iv, DWORD flags)
virtual void	PasteTrack (TrackClipObject *cobj, Interval iv, DWORD flags)
virtual BOOL	CanCopySubTrack (int subNum, Interval iv, DWORD flags)
virtual BOOL	CanPasteSubTrack (int subNum, TrackClipObject *cobj, Interval iv, DWORD flags)
virtual TrackClipObject *	CopySubTrack (int subNum, Interval iv, DWORD flags)
virtual void	PasteSubTrack (int subNum, TrackClipObject *cobj, Interval iv, DWORD flags)
virtual int	GetTrackVSpace (int lineHeight)
virtual int	HitTestTrack (TrackHitTab &hits, Rect &rcHit, Rect &rcTrack, float zoom, int scroll, DWORD flags)
virtual int	PaintTrack (ParamDimensionBase *dim, HDC hdc, Rect &rcTrack, Rect &rcPaint, float zoom, int scroll, DWORD flags)
virtual int	PaintSubTrack (int subNum, ParamDimensionBase *dim, HDC hdc, Rect &rcTrack, Rect &rcPaint, float zoom, int scroll, DWORD flags)
virtual int	PaintFCurves (ParamDimensionBase *dim, HDC hdc, Rect &rcGraph, Rect &rcPaint, float tzoom, int tscroll, float vzoom, int vscroll, DWORD flags)
virtual int	HitTestFCurves (ParamDimensionBase *dim, TrackHitTab &hits, Rect &rcHit, Rect &rcGraph, float tzoom, int tscroll, float vzoom, int vscroll, DWORD flags)
virtual int	PaintSubFCurves (int subNum, ParamDimensionBase *dim, HDC hdc, Rect &rcGraph, Rect &rcPaint, float tzoom, int tscroll, float vzoom, int vscroll, DWORD flags)
virtual int	HitTestSubFCurves (int subNum, ParamDimensionBase *dim, TrackHitTab &hits, Rect &rcHit, Rect &rcGraph, float tzoom, int tscroll, float vzoom, int vscroll, DWORD flags)
virtual void	EditTrackParams (TimeValue t, ParamDimensionBase *dim, const MCHAR *pname, HWND hParent, IObjParam *ip, DWORD flags)
virtual int	TrackParamsType ()
virtual int	GetFCurveExtents (ParamDimensionBase *dim, float &min, float &max, DWORD flags)
	This method is called to calculate the largest and smallest values of the anim. More...
CoreExport void	AddNoteTrack (NoteTrack *note)
CoreExport void	DeleteNoteTrack (NoteTrack *note, BOOL delNote=TRUE)
CoreExport BOOL	HasNoteTracks ()
CoreExport int	NumNoteTracks ()
CoreExport NoteTrack *	GetNoteTrack (int i)
virtual void	FreeAllBitmaps ()
virtual void	GetSystemNodes (INodeTab &nodes, SysNodeContext Context)
virtual BOOL	IsSubClassOf (Class_ID classID)
	returns true if the animatable has sub-classed off the given class More...
virtual CoreExport void	MouseCycleCompleted (TimeValue t)
virtual CoreExport void	MouseCycleStarted (TimeValue t)
virtual int	NumParamBlocks ()
virtual IParamBlock2 *	GetParamBlockByID (short id)
CoreExport bool	SvSaveData (ISave *isave, USHORT id)
CoreExport bool	SvLoadData (ILoad *iLoad)
CoreExport DWORD	SvGetRefIndex ()
CoreExport void	SvSetRefIndex (DWORD i)
CoreExport bool	SvDeleteRefIndex ()
CoreExport SvGraphNodeReference	SvStdTraverseAnimGraph (IGraphObjectManager *gom, Animatable *owner, int id, DWORD flags)
virtual CoreExport bool	SvCanInitiateLink (IGraphObjectManager *gom, IGraphNode *gNode)
virtual CoreExport bool	SvCanConcludeLink (IGraphObjectManager *gom, IGraphNode *gNode, IGraphNode *gNodeChild)
virtual CoreExport bool	SvCanSetName (IGraphObjectManager *gom, IGraphNode *gNode)
virtual CoreExport bool	SvSetName (IGraphObjectManager *gom, IGraphNode *gNode, const MSTR &name)
virtual CoreExport bool	SvCanRemoveThis (IGraphObjectManager *gom, IGraphNode *gNode)
virtual CoreExport bool	SvRemoveThis (IGraphObjectManager *gom, IGraphNode *gNode)
	Called when the user deletes this object in the schematic view... More...
virtual CoreExport bool	SvIsHighlighted (IGraphObjectManager *gom, IGraphNode *gNode)
virtual CoreExport COLORREF	SvGetSwatchColor (IGraphObjectManager *gom, IGraphNode *gNode)
virtual CoreExport bool	SvIsInactive (IGraphObjectManager *gom, IGraphNode *gNode)
virtual CoreExport bool	SvLinkChild (IGraphObjectManager *gom, IGraphNode *gNodeThis, IGraphNode *gNodeChild)
virtual CoreExport bool	SvEditProperties (IGraphObjectManager *gom, IGraphNode *gNode)
virtual CoreExport MSTR	SvGetTip (IGraphObjectManager *gom, IGraphNode *gNode)
virtual CoreExport MSTR	SvGetRefTip (IGraphObjectManager *gom, IGraphNode *gNode, IGraphNode *gNodeMaker)
virtual CoreExport bool	SvCanDetach (IGraphObjectManager *gom, IGraphNode *gNode)
virtual CoreExport bool	SvDetach (IGraphObjectManager *gom, IGraphNode *gNode)
virtual CoreExport MSTR	SvGetRelTip (IGraphObjectManager *gom, IGraphNode *gNodeTarget, int id, IGraphNode *gNodeMaker)
	Returns a string to be displayed in the tip window in the schematic view for a relationship from "gNodeMaker" to "gNodeTarget"... More...
virtual CoreExport bool	SvCanDetachRel (IGraphObjectManager *gom, IGraphNode *gNodeTarget, int id, IGraphNode *gNodeMaker)
	Returns true if this object can respond to the SvDetachRel(...) method... More...
virtual CoreExport bool	SvDetachRel (IGraphObjectManager *gom, IGraphNode *gNodeTarget, int id, IGraphNode *gNodeMaker)
	Detach this relationship. More...
virtual CoreExport bool	SvHandleRelDoubleClick (IGraphObjectManager *gom, IGraphNode *gNodeTarget, int id, IGraphNode *gNodeMaker)
	Called when this relationship is double-clicked in the schematic view... More...
CoreExport ICustAttribContainer *	GetCustAttribContainer ()
	This method returns a pointer to the custom attributes container interface class. More...
CoreExport void	AllocCustAttribContainer ()
	This method allocates space for a custom attributes container. More...
CoreExport void	DeleteCustAttribContainer ()
	This method deletes space used by a custom attributes container. More...
void	SetAFlag (DWORD mask)
void	ClearAFlag (DWORD mask)
	Clears one or more bits in the Animatable flags. More...
bool	TestAFlag (DWORD mask) const
	Tests one or more bits in the Animatable flags. More...
void	SetAFlagEx (DWORD mask)
	Sets one or more bits in the Animatable extended flags. More...
void	ClearAFlagEx (DWORD mask)
	Clears one or more bits in the Animatable extended flags. More...
bool	TestAFlagEx (DWORD mask) const
	Tests one or more bits in the Animatable extended flags. More...
CoreExport bool	TestFlagBit (int index)
	Tests the specified flag bit. More...
CoreExport void	SetFlagBit (int index, bool newValue=true)
	Sets the specified flag bit. More...
CoreExport void	ClearFlagBit (int index)
	Clears the specified flag bit. More...
Public Member Functions inherited from InterfaceServer
virtual UtilExport	~InterfaceServer ()
	Destructor. More...

Public Attributes
IParamBlock *	ipblock
IParamBlock *	pblock
BezierShape	shape
Interval	ivalid
BOOL	suspendSnap

Static Public Attributes
static IParamMap *	ipmapParam
static int	dlgSteps
static BOOL	dlgOptimize
static BOOL	dlgAdaptive
static SimpleSpline *	editOb
Static Public Attributes inherited from Animatable
static const AnimHandle	kInvalidAnimHandle = 0

Protected Member Functions
virtual CoreExport void	SetReference (int i, RefTargetHandle rtarg)
	This method sets the ShapeObject's parameter block pointer. More...
CoreExport bool	IsRequiresLegacyDisplayMode () const
virtual CoreExport bool	UpdatePerNodeItems (const MaxSDK::Graphics::UpdateDisplayContext &updateDisplayContext, MaxSDK::Graphics::UpdateNodeContext &nodeContext, MaxSDK::Graphics::IRenderItemContainer &targetRenderItemContainer)
Protected Member Functions inherited from ReferenceTarget
virtual CoreExport int	DoEnumDependentsImpl (DependentEnumProc *dep)
	Method to perform an enumeration on a ReferenceTarget. More...
virtual CoreExport	~ReferenceTarget ()=0
	Destructor. More...
Protected Member Functions inherited from ReferenceMaker
virtual CoreExport	~ReferenceMaker ()=0
	Destructor. More...
void	BlockEval ()
void	UnblockEval ()
int	Evaluating ()
CoreExport RefResult	StdNotifyRefChanged (const Interval &changeInt, RefTargetHandle hTarget, PartID partID, RefMessage message, BOOL propagate, NotifyDependentsOption notifyDependentsOption)
Protected Member Functions inherited from Animatable
virtual CoreExport	~Animatable ()=0
	Destructor. More...
Protected Member Functions inherited from Noncopyable
	Noncopyable ()
	~Noncopyable ()

Additional Inherited Members
Static Public Member Functions inherited from Animatable
static CoreExport BOOL	IsDeleted (Animatable *anim)
	Debug method to determine whether an object has been deleted. More...
static CoreExport AnimHandle	GetHandleByAnim (Animatable *anim)
	Get the unique handle for an Animatable object. More...
static CoreExport Animatable *	GetAnimByHandle (AnimHandle handle)
	Get an Animatable object from its unique handle. More...
static CoreExport void	EnumerateAllAnimatables (EnumAnimList &enumProcObject)
	Enumerator to enumerate across all animatables. More...
static CoreExport bool	RegisterAppDataLoadCallback (const Class_ID &cid, SClass_ID sid, APPDATALOADPROC proc)
	Registers a callback proc that is called when an AppDataChunk is read from a scene file. More...
static CoreExport bool	UnRegisterAppDataLoadCallback (const Class_ID &cid, SClass_ID sid, APPDATALOADPROC proc)
	Unregisters a callback proc that is called when an AppDataChunk is read from a scene file. More...
static CoreExport bool	RegisterAppDataLoadCallback (DWORD sbid, APPDATALOADPROC proc)
	Registers a callback proc that is called when an AppDataChunk is read from a scene file. More...
static CoreExport bool	UnRegisterAppDataLoadCallback (DWORD sbid, APPDATALOADPROC proc)
	Unregisters a callback proc that is called when an AppDataChunk is read from a scene file. More...
static CoreExport int	RequestFlagBit ()
	Requests an unique flag bit index. More...
static CoreExport void	ReleaseFlagBit (int index)
	Releases the flag bit index. More...
static CoreExport void	ClearFlagBitInAllAnimatables (int index)
	Clears the specified flag bit in all Animatables. More...
Static Public Member Functions inherited from MaxHeapOperators
static UtilExport void *	operator new (size_t size)
	Standard new operator used to allocate objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, const std::nothrow_t &e)
	Standard new operator used to allocate objects if there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new (size_t size, const char *filename, int line)
	New operator used to allocate objects that takes the filename and line number where the new was called If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, int block_type, const char *filename, int line)
	New operator used to allocate objects that takes the type of memory, filename and line number where the new was called If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, const std::nothrow_t &e, const char *filename, int line)
	New operator used to allocate objects that takes the filename and line number where the new was called If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new (size_t size, unsigned long flags)
	New operator used to allocate objects that takes extra flags to specify special operations If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, const std::nothrow_t &e, unsigned long flags)
	New operator used to allocate objects that takes extra flags to specify special operations If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new[] (size_t size)
	New operator used to allocate arrays of objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e)
	New operator used to allocate arrays of objects If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new[] (size_t size, const char *filename, int line)
	New operator used to allocate arrays of objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new[] (size_t size, int block_type, const char *filename, int line)
	New operator used to allocate arrays of objects. More...
static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e, const char *filename, int line)
	New operator used to allocate arrays of objects If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new[] (size_t size, unsigned long flags)
	New operator used to allocate arrays of objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e, unsigned long flags)
	New operator used to allocate arrays of objects If there is insufficient memory, NULL will be returned. More...
static UtilExport void	operator delete (void *ptr)
	Standard delete operator used to deallocate an object If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, const std::nothrow_t &e)
	Standard delete operator used to deallocate an object If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete (void *ptr, const char *filename, int line)
	Delete operator used to deallocate an object that takes the filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, int block_type, const char *filename, int line)
	Delete operator used to deallocate an object that takes the type of memory, filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, const std::nothrow_t &e, const char *filename, int line)
	Delete operator used to deallocate an object that takes the filename and line number where the delete was called If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete (void *ptr, unsigned long flags)
	Delete operator used to deallocate an object that takes extra flags to specify special operations If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, const std::nothrow_t &e, unsigned long flags)
	Delete operator used to deallocate an object that takes extra flags to specify special operations If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete[] (void *ptr)
	Standard delete operator used to deallocate an array of objects If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e)
	Standard delete operator used to deallocate an array of objects If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete[] (void *ptr, const char *filename, int line)
	Delete operator used to deallocate an array of objects that takes the filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, int block_type, const char *filename, int line)
	Delete operator used to deallocate an array of objects that takes the type of memory, filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e, const char *filename, int line)
	Delete operator used to deallocate an array of objects that takes the filename and line number where the delete was called If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete[] (void *ptr, unsigned long flags)
	Delete operator used to deallocate an array of objects that takes extra flags to specify special operations If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e, unsigned long flags)
	Delete operator used to deallocate an array of objects that takes extra flags to specify special operations If the pointer is invalid, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, void *placement_ptr)
	Placement new operator. More...
static UtilExport void	operator delete (void *ptr, void *placement_ptr)
	Placement delete operator. More...
static UtilExport void *	aligned_malloc (size_t size, size_t alignment)
	Allocates memory on a specified alignment boundary. More...
static UtilExport void *	aligned_realloc (void *ptr, size_t size, size_t alignment)
	Reallocates memory on a specified alignment boundary. More...
static UtilExport void	aligned_free (void *ptr)
	Frees a block of memory that was allocated with aligned_malloc/aligned_realloc. More...
Protected Attributes inherited from BaseObject
MaxSDK::Graphics::RenderItemHandleArray	mRenderItemHandles
Protected Attributes inherited from Animatable
DWORD	aflag
AnimPropertyList	aprops

Constructor & Destructor Documentation

CoreExport SimpleSpline

(

)

Remarks

Constructor. The validity interval is set to empty, and the pblocks are set to NULL.

CoreExport ~SimpleSpline

(

)

Remarks

Destructor.

Clients of SimpleSpline need to implement these methods:

Member Function Documentation

CoreExport void UpdateShape

(

TimeValue

t

)

void ShapeInvalid ( )

inline

{ ivalid.SetEmpty(); }

CoreExport int HitTest ( TimeValue  t, INode *  inode, int  type, int  crossing, int  flags, IPoint2 *  p, ViewExp *  vpt  )

virtual

This method is called to determine if the specified screen point intersects the item.

The method returns nonzero if the item was hit; otherwise 0.

Parameters

t	The time to perform the hit test.
inode	A pointer to the node to test.
type	The type of hit testing to perform. See Scene and Node Hit Test Types. for details.
crossing	The state of the crossing setting. If TRUE crossing selection is on.
flags	The hit test flags. See Scene and Node Hit Testing Flags for details.
p	The screen point to test.
vpt	An interface pointer that may be used to call methods associated with the viewports.

Returns

Nonzero if the item was hit; otherwise 0.

Reimplemented from ShapeObject.

CoreExport void Snap ( TimeValue  t, INode *  inode, SnapInfo *  snap, IPoint2 *  p, ViewExp *  vpt  )

virtual

Checks the point passed for a snap and updates the SnapInfo structure.

Note

Developers wanting to find snap points on an Editable Mesh object should see the method XmeshSnap::Snap() in /MAXSDK/SAMPLES/SNAPS/XMESH/XMESH.CPP.

Parameters

t	The time to check.
inode	The node to check.
snap	The snap info structure to update.
p	The screen point to check.
vpt	An interface pointer that may be used to call methods associated with the viewports.

Reimplemented from BaseObject.

CoreExport int Display ( TimeValue  t, INode *  inode, ViewExp *  vpt, int  flags  )

virtual

This method displays the shape's generated mesh if necessary.

Objects derived from ShapeObject will want to have the ShapeObject code display the rendering mesh in the viewport; this method will do that for them. Simply set the viewport transform and call this method. An example from the SplineShape code: int SplineShape::Display(TimeValue t, INode inode, ViewExp vpt, int flags)

{

Eval(t);

GraphicsWindow *gw = vpt->getGW();

gw->setTransform(inode->GetObjectTM(t));

ShapeObject::Display(t, inode, vpt, flags);

...

}

If the ShapeObject's "Display Render Mesh" switch is off, it will do nothing. Otherwise, it will display the proper mesh as specified by its parameter block.

Parameters

t	The time to display the object.
inode	The node to display.
vpt	An interface pointer that may be used to call methods associated with the viewports.
flags	See Display Flags.

Returns

The return value is not currently used.

Reimplemented from ShapeObject.

virtual CoreExport void BeginEditParams ( IObjParam *  objParam, ULONG  flags, Animatable *  prev  )

virtual

This method allows the ShapeObject to create its new "Rendering" rollup.

To use it, the derived class simply calls it first thing in its own BeginEditParams method. An example from the SplineShape code:

void SplineShape::BeginEditParams(IObjParam *ip, ULONG flags,Animatable prev )

{

ShapeObject::BeginEditParams(ip, flags, prev);

...

}

Parameters

objParam	The interface pointer passed to the plug-in.
flags	The flags passed along to the plug-in in Animatable::BeginEditParams().
prev	The pointer passed to the plug-in in Animatable::BeginEditParams().

Reimplemented from ShapeObject.

virtual CoreExport void EndEditParams ( IObjParam *  ip, ULONG  flags, Animatable *  next  )

virtual

Remarks

This method is called when the user is finished editing object's parameters. The system passes a flag into the EndEditParams() method to indicate if the rollup page should be removed. If this flag is TRUE, the plug-in must un-register the rollup page, and delete it from the panel.

Parameters:

IObjParam *ip

This is an interface pointer passed in. The developer may use the interface pointer to call methods such as DeleteRollupPage().

ULONG flags

The following flag may be set:

END_EDIT_REMOVEUI

If TRUE, the item's user interface should be removed.

Animatable *next

This parameter may be used in the motion and hierarchy branches of the command panel. This pointer allows a plug-in to look at the ClassID of the next item that was being edited, and if it is the same as this item, to not replace the entire UI in the command panel. Note that for items that are edited in the modifier branch this field can be ignored.

Reimplemented from ShapeObject.

IParamArray* GetParamBlock ( )

inlinevirtual

An object or modifier should implement this method if it wishes to make its parameter block available for other plug-ins to access it.

The system itself doesn't actually call this method. This method is optional.

Returns

A pointer to the item's parameter block. See Class IParamArray.

Reimplemented from BaseObject.

{return (IParamArray*)pblock;}

CoreExport int GetParamBlockIndex ( int  id )

virtual

If a plug-in makes its parameter block available (using GetParamBlock()) then it will need to provide #defines for indices into the parameter block.

These defines should not be directly used with the parameter block but instead converted by this function that the plug-in implements. This way if a parameter moves around in a future version of the plug-in the #define can be remapped. A return value of -1 indicates an invalid parameter id.

Parameters

id	The parameter block id. See Parameter Block IDs.

Returns

The parameter block index or -1 if it is invalid.

Reimplemented from BaseObject.

CoreExport ObjectState Eval ( TimeValue  t )

virtual

This method is called to evaluate the object and return the result as an ObjectState.

When the system has a pointer to an object it doesn't know if it's a procedural object or a derived object. So it calls Eval() on it and gets back an ObjectState. A derived object managed by the system may have to call Eval() on its input for example. A plug-in (like a procedural object) typically just returns itself. A plug-in that does not just return itself is the Morph Object (/MAXSDK/SAMPLES/OBJECTS/MORPHOBJ.CPP). This object uses a morph controller to compute a new object and fill in an ObjectState which it returns.

Parameters

t	Specifies the time to evaluate the object.

Returns

The result of evaluating the object as an ObjectState.

Sample Code:

Typically this method is implemented as follows:

{ return ObjectState(this); }

Implements Object.

CoreExport Interval ObjectValidity ( TimeValue  t )

virtual

This method returns the validity interval of the object as a whole at the specified time.

Parameters

t	The time to compute the validity interval.

Returns

The validity interval of the object, including that queried from the base class.

Reimplemented from Object.

CoreExport int CanConvertToType ( Class_ID  obtype )

virtual

Indicates whether the object can be converted to the specified type.

If the object returns nonzero to indicate it can be converted to the specified type, it must handle converting to and returning an object of that type from ConvertToType().

See also

Class ObjectConverter for additional details on converting objects between types.

Parameters

obtype

The Class_ID of the type of object to convert to. See Class Class_ID, Class IDs defined in plugapi.h.

Returns

Nonzero if the object can be converted to the specified type; otherwise 0.

Default Implementation:

{ return 0; }

Reimplemented from Object.

CoreExport Object* ConvertToType ( TimeValue  t, Class_ID  obtype  )

virtual

This method converts this object to the type specified and returns a pointer it.

Note that if ConvertToType() returns a new object it should be a completely different object with no ties (pointers or references) to the original.

See also

class ObjectConverter for additional details on converting objects between types.

The following is an issue that developers of world space modifiers need to

be aware of if the world space modifier specifies anything but generic deformable objects as its input type. In other words, if a world space modifier, in its implementation of Modifier::InputType(), doesn't specifically return defObjectClassID then the following issue regarding the 3ds Max pipeline needs to be considered. Developers of other plug-ins that don't meet this condition don't need to be concerned with this issue.

World space modifiers that work on anything other than generic deformable

objects are responsible for transforming the points of the object they modify into world space using the ObjectState TM. To understand why this is necessary, consider how 3ds Max applies the node transformation to the object flowing down the pipeline.

In the geometry pipeline architecture, the node in the scene has its

transformation applied to the object in the pipeline at the transition between the last object space modifier and the first world space modifier. The node transformation is what places the object in the scene – thus this is what puts the object in world space. The system does this by transforming the points of the object in the pipeline by the node transformation. This is only possible however for deformable objects. Deformable objects are those that support the Object::IsDeformable(), NumPoints(), GetPoint() and SetPoint() methods. These deformable objects can be deformed by the system using these methods, and thus the system can modify the points to put them in world space itself.

If a world space modifier does not specify that it works on deformable

objects, the system is unable to transform the points of the object into world space. What it does instead is apply the transformation to the ObjectState TM. In this case, a world space modifier is responsible for transforming the points of the object into world space itself, and then setting the ObjectState TM to the identity. There is an example of this in the sample code for the Bomb space warp. The Bomb operates on TriObjects and implements InputType() as { return Class_ID(TRIOBJ_CLASS_ID,0); }. Since it doesn't specifically return defObjectClassID, it is thus responsible for transforming the points of the object into world space itself. It does this in its implementation of ModifyObject() as follows:

if (os->GetTM())
{
    Matrix3 tm = *(os->GetTM());
    for (int i=0; i<triOb->mesh.getNumVerts(); i++) {
        triOb->mesh.verts[i] = triOb->mesh.verts[i] *tm;
    }
    os->obj->UpdateValidity(GEOM_CHAN_NUM,os->tmValid());
    os->SetTM(NULL,FOREVER);
}

As the code above shows, the Bomb checks if the ObjectState TM is non-NULL. If it is, the points of the object are still not in world space and thus must be transformed. It does this by looping through the points of the TriObject and multiplying each point by the ObjectState TM. When it is done, it sets the ObjectState TM to NULL to indicate the points are now in world space. This ensure that any later WSMs will not transform the points with this matrix again.

For the Bomb world space modifier this is not a problem since it specifies

in its implementation of ChannelsChanged() that it will operate on the geometry channel (GEOM_CHANNEL). Certain world space modifiers may not normally specify GEOM_CHANNEL in their implementation of ChannelsChanged(). Consider the camera mapping world space modifier. Its function is to apply mapping coordinates to the object it is applied to. Thus it would normally only specify TEXMAP_CHANNEL for ChannelsChanged(). However, since it operates directly on TriObjects, just like the Bomb, the system cannot transform the points into world space, and therefore the camera mapping modifier must do so in its implementation of ModifyObject(). But since it is actually altering the points of the object by putting them into world space it is altering the geometry channel. Therefore, it should really specify GEOM_CHANNEL | TEXMAP_CHANNEL in its implementation of ChannelsChanged(). If it didn't do this, but went ahead and modified the points of the object anyway, it would be transforming not copies of the points, but the original points stored back in an earlier cache or even the base object.

This is the issue developers need to be aware of. To state this in simple

terms then: Any world space modifier that needs to put the points of the object into world space (since it doesn't implement InputType() as defObjectClassID) needs to specify GEOM_CHANNEL in its implementation of ChannelsChanged().

Parameters

t	The time at which to convert.
obtype	The Class_ID of the type of object to convert to. See Class Class_ID, Class IDs defined in plugapi.h.

Returns

A pointer to an object of type obtype.

Default Implementation:

{ return NULL; }

Sample Code:

The following code shows how a TriObject can be retrieved from a node. Note on the code that if you call ConvertToType() on an object and it returns a pointer other than itself, you are responsible for deleting that object.

// Retrieve the TriObject from the node
int deleteIt;
TriObject *triObject = GetTriObjectFromNode(ip->GetSelNode(0),deleteIt);
// Use the TriObject if available
if (!triObject) return;
// ...
// Delete it when done...
if (deleteIt) triObject->DeleteMe();

// Return a pointer to a TriObject given an INode or return NULL
// if the node cannot be converted to a TriObject
TriObject *Utility::GetTriObjectFromNode(INode *node, int &deleteIt)
{
    deleteIt = FALSE;
    Object *obj = node->EvalWorldState(0).obj;
    if (obj->CanConvertToType(Class_ID(TRIOBJ_CLASS_ID, 0))) {
        TriObject *tri = (TriObject *) obj->ConvertToType(0,Class_ID(TRIOBJ_CLASS_ID, 0));
// Note that the TriObject should only be deleted
// if the pointer to it is not equal to the object
// pointer that called ConvertToType()
        if (obj != tri) 
            deleteIt = TRUE;
        return tri;
    }
    else {
        return NULL;
    }
}

Reimplemented from Object.

CoreExport void GetCollapseTypes ( Tab< Class_ID > &  clist, Tab< MSTR * > &  nlist  )

virtual

When the user clicks on the Edit Stack button in the modify branch a list of 'Convert To:' types is presented.

The use may click on one of these choices to collapse the object into one of these types (for instance, an Editable Mesh or an Editable NURBS object). This method returns a list of Class_IDs and descriptive strings that specify the allowable types of objects that this object may be collapsed into. Note: Most plug-ins call the base class method in Object in their implementation of this method. The base class implementation provided by Object checks if the object can convert to both an editable mesh and an editable spline. If it can, these are added to the allowable types.

Parameters

clist	The table of allowable Class_IDs.
nlist	The table of pointers to strings that correspond to the table of Class_IDs above.

Sample Code:

void SphereObject::GetCollapseTypes(Tab<Class_ID> &clist,Tab<MSTR*>&nlist)
{
    Object::GetCollapseTypes(clist, nlist);
    Class_ID id = EDITABLE_SURF_CLASS_ID;
    MSTR *name = new MSTR(GetString(IDS_SM_NURBS_SURFACE));
    clist.Append(1,&id);
    nlist.Append(1,&name);
}

Reimplemented from Object.

CoreExport void BuildMesh	(	TimeValue	t,
		Mesh &	mesh
	)

CoreExport void GetWorldBoundBox ( TimeValue  t, INode *  inode, ViewExp *  vp, Box3 &  box  )

virtual

This method returns the world space bounding box for Objects (see below for the Sub-object gizmo or Modifiers gizmo version).

The bounding box returned by this method does not need to be precise. It should however be calculated rapidly. The object can handle this by transforming the 8 points of its local bounding box into world space and take the minimums and maximums of the result. Although this isn't necessarily the tightest bounding box of the objects points in world space, it is close enough.

Parameters

t	The time to compute the bounding box.
inode	The node to calculate the bounding box for.
vp	An interface pointer that can be used to call methods associated with the viewports.
box	Contains the returned bounding box.

Reimplemented from BaseObject.

CoreExport void GetLocalBoundBox ( TimeValue  t, INode *  inode, ViewExp *  vp, Box3 &  box  )

virtual

This is the object space bounding box, the box in the object's local coordinates.

The system expects that requesting the object space bounding box will be fast.

Parameters

t	The time to retrieve the bounding box.
inode	The node to calculate the bounding box for.
vp	An interface pointer that may be used to call methods associated with the viewports.
box	Contains the returned bounding box.

Reimplemented from BaseObject.

CoreExport void GetDeformBBox ( TimeValue  t, Box3 &  box, Matrix3 *  tm, BOOL  useSel  )

virtual

This method computes the bounding box in the objects local coordinates or the optional space defined by tm.

Note: If you are looking for a precise bounding box, use this method and pass in the node's object TM (INode::GetObjectTM()) as the matrix.

Parameters

t	The time to compute the box.
box	A reference to a box the result is stored in.
tm	This is an alternate coordinate system used to compute the box. If the tm is not NULL this matrix should be used in the computation of the result.
useSel	If TRUE, the bounding box of selected sub-elements should be computed; otherwise the entire object should be used.

Reimplemented from Object.

CoreExport int NumberOfVertices ( TimeValue  t, int  curve  )

virtual

This method is used by the Summary Info and Object Properties dialogs to inform the user how many vertices or CVs are in the object.

The method is passed a TimeValue and a curve index; if the curve index is <0, the function should return the number of vertices/CVs in the entire shape. Otherwise, it should return the number of vertices/CVs in the specified curve.

Parameters

t	The time at which the number of vertices is to be computed.
curve	The curve index. See note above.

Reimplemented from ShapeObject.

CoreExport int NumberOfCurves ( TimeValue  t )

overridevirtual

Returns the number of polygons in the shape at the given time.

Parameters

t	The time to check.

Returns

the number of polygons in the shape.

Implements ShapeObject.

CoreExport BOOL CurveClosed ( TimeValue  t, int  curve  )

virtual

This method is called to determine if the specified curve of the shape is closed at the time passed.

Parameters

t	The time to check.
curve	The index of the curve to check.

Returns

TRUE if the curve is closed; otherwise FALSE.

Implements ShapeObject.

CoreExport Point3 InterpCurve3D ( TimeValue  t, int  curve, float  param, int  ptype = PARAM_SIMPLE  )

virtual

This method returns a point interpolated on the entire curve.

This method returns the point but you don't know which segment the point falls on. See method InterpPiece3D().

Parameters

t	The time to evaluate.
curve	The index of the curve to evaluate.
param	The 'distance' along the curve where 0 is the start and 1 is the end.
ptype	The parameter type for spline interpolation. See Parameter types for shape interpolation.

Returns

The interpolated point on the curve.

Implements ShapeObject.

CoreExport Point3 TangentCurve3D ( TimeValue  t, int  curve, float  param, int  ptype = PARAM_SIMPLE  )

virtual

This method returns a tangent vector interpolated on the entire curve.

Also see method TangentPiece3D().

Parameters

t	The time at which to evaluate the curve.
curve	The index of the curve to evaluate.
param	The 'distance' along the curve where 0.0 is the start and 1.0 is the end.
ptype	The parameter type for spline interpolation. See Parameter types for shape interpolation.

Returns

The tangent vector

Implements ShapeObject.

CoreExport float LengthOfCurve ( TimeValue  t, int  curve  )

virtual

Returns the length of the specified curve.

Note: This method makes no allowance for non-uniform scaling in the object transform. To do that, see the following code fragment (os is the ObjectState with the shape object and xfm is the NodeTM of the shape object node).

if (os.obj->SuperClassID() == SHAPE_CLASS_ID)
{
    ShapeObject *sobj;
    sobj = (ShapeObject *) os.obj;
    int cct = sobj->NumberOfCurves(ip->GetTime());
    PolyShape workShape;
    sobj->MakePolyShape(ip->GetTime(), workShape);
    workShape.Transform(xfm);
    float len = 0.0f;
    for (int i=0; i<cct; i++)
        len += workShape.lines[i].CurveLength();
}

Parameters

t	The time at which to compute the length.
curve	The index of the curve.

Implements ShapeObject.

CoreExport int NumberOfPieces ( TimeValue  t, int  curve  )

virtual

Returns the number of sub-curves in a curve.

Parameters

t	The time at which to check.
curve	The index of the curve.

Implements ShapeObject.

CoreExport Point3 InterpPiece3D ( TimeValue  t, int  curve, int  piece, float  param, int  ptype = PARAM_SIMPLE  )

virtual

This method returns the interpolated point along the specified sub-curve (segment).

For example consider a shape that is a single circle with four knots. If you called this method with curve=0 and piece=0 and param=0.0 you'd get back the point at knot 0. If you passed the same parameters except param=1.0 you'd get back the point at knot 1.

Parameters

t	The time to evaluate the sub-curve.
curve	The curve to evaluate.
piece	The segment to evaluate.
param	The position along the curve to return where 0.0 is the start and 1.0 is the end.
ptype	The parameter type for spline interpolation. See Parameter types for shape interpolation.

Returns

The point in world space.

Implements ShapeObject.

CoreExport Point3 TangentPiece3D ( TimeValue  t, int  curve, int  piece, float  param, int  ptype = PARAM_SIMPLE  )

virtual

Returns the tangent vector on a sub-curve at the specified 'distance' along the curve.

Parameters

t	The time to evaluate the sub-curve.
curve	The curve to evaluate.
piece	The sub-curve (segment) to evaluate.
param	The position along the curve to return where 0 is the start and 1 is the end.
ptype	The parameter type for spline interpolation. See Parameter types for shape interpolation.

Returns

The tangent vector.

Implements ShapeObject.

CoreExport MtlID GetMatID ( TimeValue  t, int  curve, int  piece  )

virtual

This method provides access to the material IDs of the shape.

It returns the material ID of the specified segment of the specified curve of this shape at the time passed. There is a default implementation so there is no need to implement this method if the shape does not support material IDs. Note: typedef unsigned short MtlID;

Parameters

t	The time to evaluate the sub-curve.
curve	The zero based index of the curve to evaluate.
piece	The sub-curve (segment) to evaluate.

Reimplemented from ShapeObject.

BOOL CanMakeBezier ( )

inlinevirtual

This method is called to determine if the shape can be converted to a bezier representation.

Returns

TRUE if the shape can turn into a bezier representation; otherwise FALSE.

Reimplemented from ShapeObject.

{ return TRUE; }            // Return TRUE if can turn into a bezier representation

CoreExport void MakeBezier ( TimeValue  t, BezierShape &  shape  )

virtual

Creates the bezier representation of the shape.

Parameters

t	The time to convert.
shape	The bezier representation is stored here.

Reimplemented from ShapeObject.

CoreExport ShapeHierarchy& OrganizeCurves ( TimeValue  t, ShapeHierarchy *  hier = NULL  )

virtual

This method is called to prepare the shape for lofting, extrusion, etc.

This methods looks at the shape organization, and puts together a shape hierarchy. This provides information on how the shapes are nested.

Parameters

t	The time to organize the curves.
hier	This class provides information about the hierarchy. See Class ShapeHierarchy.

Implements ShapeObject.

CoreExport void MakePolyShape ( TimeValue  t, PolyShape &  shape, int  steps = PSHAPE_BUILTIN_STEPS, BOOL  optimize = FALSE  )

virtual

Create a PolyShape representation with optional fixed steps.

Parameters

t	The time to make the PolyShape.
shape	The PolyShape representation is stored here.
steps	The number of steps between knots. Values >=0 indicates the use of fixed steps: PSHAPE_BUILTIN_STEPS Use the shape's built-in steps/adaptive settings (default). PSHAPE_ADAPTIVE_STEPS Force adaptive steps.
optimize	If TRUE intermediate steps are removed from linear segments.

Implements ShapeObject.

CoreExport int MakeCap ( TimeValue  t, MeshCapInfo &  capInfo, int  capType  )

virtual

This method generates a mesh capping info for the shape.

Parameters

t	The time to create the cap info.
capInfo	The cap info to update.
capType	See Shape Capping Types.

Returns

Nonzero if the cap info was generated; otherwise zero.

Implements ShapeObject.

CoreExport int MakeCap ( TimeValue  t, PatchCapInfo &  capInfo  )

virtual

This method creates a patch cap info out of the shape.

Only implement this method if CanMakeBezier() returns TRUE.

Parameters

t	The time to create the cap info.
capInfo	The cap info to update.

Returns

Nonzero if the cap info was generated; otherwise zero.

Reimplemented from ShapeObject.

int NumRefs ( )

inlinevirtual

The ShapeObject makes 1 reference; this is where it tells the system.

Any derived classes implementing this method must take this into account when returning the number of references they make. A good idea is to implement NumRefs in derived classes as: Int SomeShape::NumRefs() {

return myNumRefs + ShapeObject::NumRefs();

}

Reimplemented from ShapeObject.

{ return 2 + ShapeObject::NumRefs();}

CoreExport RefTargetHandle GetReference ( int  i )

virtual

This method allows the ShapeObject to return a pointer to its parameter block.

Any subclasses implementing this method must pass on the call if it indicates the ShapeObject's reference. For example:

>RefTargetHandle SomeShape::GetReference(int i) {
    If(i == 0) return ShapeObject::GetReference(i);
}

Parameters

i	The reference handle to retrieve.

Returns

The handle to the Reference Target.

Reimplemented from ShapeObject.

virtual CoreExport void SetReference ( int  i, RefTargetHandle  rtarg  )

protectedvirtual

This method sets the ShapeObject's parameter block pointer.

Any subclasses implementing this method must pass on the call to the ShapeObject if it refers to index 0. For example: void SomeShape::SetReference(int i, RefTargetHandle rtarg) {

if(i == 0) ShapeObject::SetReference(i, rtarg);

}

Parameters

i	The virtual array index of the reference to store.
rtarg	The reference handle to store.

Reimplemented from ShapeObject.

CoreExport bool IsRequiresLegacyDisplayMode ( ) const

protectedvirtual

Reimplemented from ShapeObject.

virtual CoreExport bool UpdatePerNodeItems ( const MaxSDK::Graphics::UpdateDisplayContext &  updateDisplayContext, MaxSDK::Graphics::UpdateNodeContext &  nodeContext, MaxSDK::Graphics::IRenderItemContainer &  targetRenderItemContainer  )

protectedvirtual

Reimplemented from ShapeObject.

CoreExport RefResult NotifyRefChanged ( const Interval &  changeInt, RefTargetHandle  hTarget, PartID &  partID, RefMessage  message, BOOL  propagate  )

virtual

This method will notify the Shape Object of changes in values in its parameter block.

The ShapeObject's parameter block is reference number zero. If subclasses implement this method, they should pass any messages referring to the ShapeObject's parameter block to it. For example:

If this isn't one of our references, pass it on to the ShapeObject...

if(hTarget == GetReference(0))

return ShapeObject::NotifyRefChanged(

changeInt, hTarget, partID, message);

This is a vital part of the mechanism; When a parameter in the parameter block changes, the ShapeObject must be able to flush its cached mesh which will no longer be valid.

Parameters

changeInt	This is the interval of time over which the message is active.
hTarget	This is the handle of the reference target the message was sent by. The reference maker uses this handle to know specifically which reference target sent the message.
partID	This contains information specific to the message passed in. Some messages don't use the partID at all. See the section Reference Messages for more information about the meaning of the partID for some common messages.
message	The msg parameter passed into this method is the specific message which needs to be handled. See Reference Messages.
propagate	- If called through ReferenceMaker::NotifyDependents(), the value of 'propagate' passed to it. Used if calling NotifyDependents() from within NotifyRefChanged().

Returns

The return value from this method is of type RefResult. This is usually REF_SUCCEED indicating the message was processed. Sometimes, the return value may be REF_STOP. This return value is used to stop the message from being propagated to the dependents of the item.

Reimplemented from ShapeObject.

CoreExport void ReadyInterpParameterBlock

(

)

void UnReadyInterpParameterBlock ( )

inline

{ ipblock = NULL; }

MAX_DEPRECATED void SimpleSplineClone

(

SimpleSpline *

ssplSource

)

Deprecated:

Use SimpleSplineClone(SimpleSpline *ssplSource, RemapDir& remap )

CoreExport void SimpleSplineClone	(	SimpleSpline *	ssplSource,
		RemapDir &	remap
	)

int NumSubs ( )

inlinevirtual

Remarks

The system uses a virtual array mechanism to access the sub-anims of a plug-in. This method returns the total number of sub-anims maintained by the plug-in. If a plug-in is using a parameter block to manage its parameters it should just return 1 for all the parameters directed by the parameter block.

Returns

The number of sub-anims used by the plug-in.

Default Implementation:

{ return 0; }

Reimplemented from ShapeObject.

{ return 2 + ShapeObject::NumSubs(); }  

CoreExport Animatable* SubAnim ( int  i )

virtual

This method returns the ShapeObject's animatable pointer.

Derived classes implementing this method must pass on references to index 0 to the ShapeObject. For example:: Animatable* SomeShape::SubAnim(int i) {

if(i == 0) return ShapeObject::SubAnim(i);

}

Parameters

i	This is the index of the sub-anim to return.

Reimplemented from ShapeObject.

CoreExport MSTR SubAnimName ( int  i )

virtual

This method returns the name of the animatable's name.

Derived classes implementing this method must pass on references to index 0 to the ShapeObject. For example: MSTR SomeShape::SubAnimName(int i) {

if(i == 0) return ShapeObject::SubAnimName(i);

}

Parameters

i	This is the index of the sub-anim's name to return.

Reimplemented from ShapeObject.

CoreExport void DeleteThis ( )

virtual

Deletes an instance of this class.

3ds Max calls this method when it needs to delete a plugin object (an instance of a class derived from Animatable). Similarly, plugins that need to delete instances of an Animatable or a class directly derived from it via an Animatable pointer, should call this method instead of calling directly operator delete. Following these rules will ensure that the same memory manager is used to allocate and deallocate the object. The default implementation of this method deletes the object. Plugin instances that never need to be deleted from the heap can overwrite this method to do nothing.

Note

See the method ClassDesc::Create() for details on how Max allocates plugin objects.

See ReferenceMaker::DeleteMe() and ReferenceTarget::MaybeAutoDelete() for information on how plugin instances are deleted by the system.

Remarks

See Memory Management.

See also

Required DLL Functions, Class ClassDesc.

Reimplemented from Animatable.

CoreExport void FreeCaches ( )

virtual

Remarks

This is called to delete any item that can be rebuilt. For example, the procedural sphere object has a mesh that it caches. It could call Mesh::FreeAll() on the mesh from this method. This will free the vertex/face/uv arrays. If the sphere is ever evaluated again it can just rebuild the mesh. If an object (like a sphere) has modifiers applied to it, and those modifiers are not animated, then the result of the pipeline is cached in the node. So there is no reason for the sphere to also have a cache of its representation. Therefore when this method is called, the sphere can free the data of the mesh.

Default Implementation:

{}

Reimplemented from Animatable.

CoreExport IOResult Save ( ISave *  isave )

virtual

Implemented by the System.

This method handles the storage of the data contained within the ShapeObject. In order to properly store this information, classes which subclass off of ShapeObject need to call this methods before storing their information.

Parameters

isave

An interface for saving data. See Class ISave.

Reimplemented from ShapeObject.

CoreExport IOResult Load ( ILoad *  iload )

virtual

Implemented by the System.

This method handles the loading of the data contained within the ShapeObject. In order to properly load this information, classes which subclass off of ShapeObject need to call this methods before loading their information.

Parameters

iload

An interface for loading data. See Class ILoad.

Reimplemented from ShapeObject.

LRESULT CALLBACK TrackViewWinProc ( HWND  hwnd, UINT  message, WPARAM  wParam, LPARAM  lParam  )

inlinevirtual

This function is obsolete.

Reimplemented from Animatable.

                                                {return(0);}

void GetClassName ( MSTR &  s )

inlinevirtual

Remarks

Retrieves the name of the plug-in class. This is used internally for debugging purposes.

Parameters:

MSTR& s

The name is stored here.

Reimplemented from ReferenceTarget.

{s = GetObjectName();}

void InitNodeName ( MSTR &  s )

inlinevirtual

Remarks

This method retrieves the default name of the node when it is created.

Parameters:

MSTR& s

The name is stored here.

Reimplemented from ShapeObject.

{s = GetObjectName();}

virtual Class_ID ClassID ( )

pure virtual

Remarks

Returns the unique Class_ID of the plug-in. See Class Class_ID for more details.

Reimplemented from Animatable.

virtual void BuildShape ( TimeValue  t, BezierShape &  ashape  )

pure virtual

Remarks

This method is called to build the shape at the specified time and store the results in ashape.

Parameters:

TimeValue t

The time to build the shape.

BezierShape& ashape

The created shape is store here.

virtual RefTargetHandle Clone ( RemapDir &  remap )

pure virtual

Remarks

This method is called to have the plug-in clone itself. The plug-in should clone all its references as well.

Parameters:

RemapDir &remap

This class is used for remapping references during a Clone.

See also

class RemapDir

Returns

A pointer to the cloned item.

Reimplemented from ReferenceTarget.

virtual CreateMouseCallBack* GetCreateMouseCallBack ( )

pure virtual

Remarks

This method allows the system to retrieve a callback object used in creating the shape in the 3D viewports. This method returns a pointer to an instance of a class derived from CreateMouseCallBack. This class has a method proc() which is where the developer defines the user/mouse interaction used during the shape creation phase.

Returns

A pointer to an instance of a class derived from CreateMouseCallBack.

Implements BaseObject.

virtual BOOL ValidForDisplay ( TimeValue  t )

pure virtual

Remarks

Returns TRUE if it is okay to display the shape at the time passed; otherwise FALSE. Certain shapes may not want to be displayed at a certain time, for example if their size goes to zero at some point.

Parameters:

TimeValue t

The time to check.

virtual void InvalidateUI ( )

inlinevirtual

Remarks

This is called if the user interface parameters needs to be updated because the user moved to a new time. The UI controls must display values for the current time.

If the plug-in uses a parameter map for handling its UI, it may call a method of the parameter map to handle this: ipmapParam->Invalidate();

If the plug-in does not use parameter maps, it should call the SetValue() method on each of its controls that display a value, for example the spinner controls. This will cause to the control to update the value displayed. The code below shows how this may be done for a spinner control. Note that ip and pblock are assumed to be initialized interface and parameter block pointers

(IObjParam *ip, IParamBlock *pblock).

float newval;

Interval valid=FOREVER;

TimeValue t=ip->GetTime();

// Get the value from the parameter block at the current time.

pblock->GetValue( PB_ANGLE, t, newval, valid );

// Set the value. Note that the notify argument is passed as FALSE.

// This ensures no messages are sent when the value changes.

angleSpin->SetValue( newval, FALSE );

{}

virtual ParamDimension* GetParameterDim ( int  pbIndex )

inlinevirtual

Remarks

This method returns the parameter dimension of the parameter whose index is passed.

Parameters:

int pbIndex

The index of the parameter to return the dimension of.

Returns

Pointer to a ParamDimension. See Class ParamDimension.

Default Implementation:

{return defaultDim;}

{return defaultDim;}

virtual MSTR GetParameterName ( int  pbIndex )

inlinevirtual

Remarks

Returns the name of the parameter whose index is passed.

Parameters:

int pbIndex

The index into the parameter block of the parameter to return the name of.

Default Implementation:

{return MSTR(_M("Parameter"));}

{return MSTR(_M("Parameter"));}

virtual BOOL DisplayVertTicksDuringCreation ( )

inlinevirtual

Remarks

Returns TRUE if the Simple Spline should display vertex ticks during its creation; otherwise FALSE.

Default Implementation:

{ return TRUE; }

{ return TRUE; }

Member Data Documentation

IParamBlock* ipblock

IParamBlock* pblock

IParamMap* ipmapParam

static

int dlgSteps

static

BOOL dlgOptimize

static

BOOL dlgAdaptive

static

BezierShape shape

Interval ivalid

BOOL suspendSnap

SimpleSpline* editOb

static