SketchIsoparametricCurves Object

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

Description

The collection of isoparametric curves in a sketch. This provides access to the existing isoparametric curves and supports the method to create new isoparametric curves.

Methods

Name Description
add Creates sketch geometry that represents isoparametric curves on a face. An isoparametric curve follows the surface in either the U or V parametric direction at a constant parameter value. This results in the creation of associative isoparametric curves, which means they remain associated with the face and will update if the model changes. You can create a non-associative result by using the addUnlinked method..

The created curves can be accessed through the returned SketchIsoparametricCurve object and they are also available in the appropriate collections. For example, any lines will also be in the SketchLines collection.
addUnlinked Creates sketch geometry that represents isoparametric curves on a face. An isoparametric curve follows the surface in either the U or V parametric direction at a constant parameter value. This method calculates and creates sketch geometry that represents the isoparametric curves but all intelligence about how they were created is lost and the result is regular sketch curves.

To create parametric isoparametric curves, use the add method.
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().
createInput Creates a new IsoparametricCurveInput object that is used to specify the input needed to create new isoparametric curves.
item Function that returns the specified isoparametric curve using an index into the collection.

Properties

Name Description
count Returns the number of isoparametric curves in the sketch.
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

SketchCurves.sketchIsoparametricCurves

Version

Introduced in version April 2026