ScratchPolygonSelection Object Preview

Derived from: Base Object
Defined in namespace "adsk::cam" and the header file is <Cam/GeometrySelections/ScratchPolygonSelection.h>

PreviewThis functionality is provided as a preview of intended future API capabilities. You are encouraged to use it and report any problems or suggestions using the Fusion API and Scripts forum.

Because this is a preview of future functionality, there is the possibility that it will change, which will possibly break any existing programs that use this functionality. Because of that, you should never deliver any programs that use any preview capabilities. For a distributed program, you should wait until it has moved from preview to released state.

Description

Represents a single scratch polygon selection - a user-drawn polygon defined by a series of 3D points. Used in toolpath edit operations such as polygon trim and move start points.

Methods

Name Description
classType

Static function that all classes support that returns the type of the class as a string. The returned string matches the string returned by the objectType property. For example if you have a reference to an object and you want to check if it's a SketchLine you can use myObject.objectType == fusion.SketchLine.classType().

Properties

Name Description
isEmpty Returns whether the polygon contains no points.
isValid Indicates if this object is still valid, i.e. hasn't been deleted or some other action done to invalidate the reference.
objectType This property is supported by all objects in the API and returns a string that contains the full name (namespace::objecttype) describing the type of the object.

It's often useful to use this in combination with the classType method to see if an object is a certain type. For example: if obj.objectType == adsk.core.Point3D.classType():
points Gets or sets the polygon vertices as an array of 3D points. Points define a polyline that is treated as a closed polygon for trim operations, or a line for move start points operations.
viewDirection Gets or sets the view/projection direction for this polygon. This defines the direction along which the polygon is projected onto the toolpath for the edit operation.

Accessed From

ScratchPolygonSelections.createNewScratchPolygonSelection, ScratchPolygonSelections.item

Version

Introduced in version July 2026