Signal Object Preview

Derived from: EcadObject Object
Defined in namespace "adsk::electron" and the header file is <Electron/Signals/Signal.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

Copper trace network in a PCB board; connects pads and vias through wires and polygon pours.

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
airWiresHidden True if air wires (unrouted connections) are hidden for this signal.
contactRefs Contact references (connections to pads or SMDs) in this signal.
id Identifier of the object.
isValid Indicates if this object is still valid, i.e. hasn't been deleted or some other action done to invalidate the reference.
name Assigned name of this signal (e.g., GND, VCC).
netClass Net class assigned to this signal.
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():
polyPours Polygon pours in this signal.
vias Vias in this signal.
wires Wires (copper traces) in this signal.

Accessed From

Signals.item

Samples

Name Description
Electronics Board Summary Sample

Demonstrates reading the open PCB layout: board title, placed component and copper network overview, breakdown of geometry, layer stack, design rule check results, and the linked schematic when the design includes one.

Version

Introduced in version May 2026