Q: How can I change the color of the face by selecting a face object from an assembly document?
A: In an assembly document you should use the NativeObject of a face proxy object to obtain the original occurrence. By modifying the NativeObject's color property you can modify the color of the face in the assembly.
Selecting face in an assembly context you really get FaceProxy object of this face. You need to use NativeObject property of this face proxy object to get reference to the original face. Then you are able to modify face color.
The following VBA example demonstrates how this is done.
Dim oSelectSet As SelectSet
Set oSelectSet = ThisApplication.ActiveDocument.SelectSet
On Error Resume Next
If oSelectSet.count <> 1 Then
' check if it's a face
Dim oFaceProxy As FaceProxy
Set oFaceProxy = oSelectSet.Item(1)
If oFaceProxy Is Nothing Then
On Error GoTo 0
' get the native object, which resides in the definition of the occurrence
Dim oFace As Face
Set oFace = oFaceProxy.NativeObject
' get the document where the face belongs
Dim oDoc As Document
Set oDoc = oFace.Parent.ComponentDefinition.Document
' NOTE: make sure that the style "myColor" already
' exists in the document where the face belongs
' if it does not exist yet then this call will fail
Dim oStyle As RenderStyle
Set oStyle = oDoc.RenderStyles.Item("myColor") 'your customized color
Call oFace.SetRenderStyle(kOverrideRenderStyle, oStyle)
by Vladimir Ananyev