AutoConstrainResult Object Preview

Derived from: Base Object
Defined in namespace "adsk::fusion" and the header file is <Fusion/Sketch/AutoConstrainResult.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

Provides the result information after a sketch auto constrain operation has been executed. This object contains details about what constraints and dimensions were added and whether the sketch was successfully fully constrained.

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
addedConstraints Returns an array of the GeometricConstraint objects that were added to constrain the sketch. If no geometric constraints were added during the auto constrain operation, this property returns an empty array.
addedDimensions Returns an array of the SketchDimension objects that were added to constrain the sketch. If no dimensions were added during the auto constrain operation, this property returns an empty array.
isFullyConstrained Indicates if the auto constrain operation successfully auto constrained the sketch. Returns true if the sketch is fully constrained after the operation, false otherwise. A value of false may indicate that additional constraints are needed or that the current sketch geometry cannot be fully constrained with the current settings.
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():

Accessed From

Sketch.autoConstrain

Version

Introduced in version January 2026