Describes a single knot in a spline.
It is used by plug-ins to get and set knot information in the Spline3D class. This is primarily here for backward-compatibility with versions prior to MAXr3. In 3ds Max 2.0 and later there are methods which provide full access to the private data members of the class. All methods of this class are implemented by the system. To understand this class better, picture a bezier spline with three knots, going from left to right:
A—>AB-—BA<—B—>BC-—CB<—C The knot points are A, B and C. The vectors are labeled the same as patch vectors (AB is the vector from A going toward B, the vector from B to A is labeled BA, and so on). In this diagram, AB is the OUT vector for knot A. BA is the IN vector for knot B. BC is the OUT vector for knot B, and CB is the IN vector for knot C. Because this is an open spline, knot A doesn't use its IN vector, and knot C doesn't use its OUT vector. The IN and OUT terminology is based on the way a spline flows from the first knot to the last. If the spline is reversed, the IN and OUT sense is reversed, as well. Regarding the vectors, the only difference between a circle and a square is that the square has vectors that are at the same location as the knot point (in other words, zero length vectors) causing sharp corners. The circle uses vectors which cause each segment to bulge to form a quarter-circle. Take a look at the /MAXSDK/SAMPLES/OBJECTS/NGON.CPP source file for an example of how the vectors are generated to form a linear NGON versus a circular one.
- See also
- Spline3D
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| 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...
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| static UtilExport void * | operator new (size_t size, void *placement_ptr) |
| | Placement new operator. More...
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| static UtilExport void | operator delete (void *ptr, void *placement_ptr) |
| | Placement delete operator. More...
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| static UtilExport void * | aligned_malloc (size_t size, size_t alignment) |
| | Allocates memory on a specified alignment boundary. More...
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| static UtilExport void * | aligned_realloc (void *ptr, size_t size, size_t alignment) |
| | Reallocates memory on a specified alignment boundary. More...
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| static UtilExport void | aligned_free (void *ptr) |
| | Frees a block of memory that was allocated with aligned_malloc/aligned_realloc. More...
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Inheritance diagram for SplineKnot: