internal CompInst(SU.ComponentInstanceRef instanceRef)
{
// Get the transform.
SU.Transformation transformation = new SU.Transformation();
SU.ComponentInstanceGetTransform(instanceRef, out transformation);
Transform = new Transform(transformation);
// Get the instance name.
SU.StringRef stringRef = new SU.StringRef();
SU.StringCreate(stringRef);
SU.ComponentInstanceGetName(instanceRef, stringRef);
InstanceName = Convert.ToStringAndRelease(stringRef);
// Get the definition name.
SU.ComponentDefinitionRef componentDefinitionRef = new SU.ComponentDefinitionRef();
SU.ComponentInstanceGetDefinition(instanceRef, componentDefinitionRef);
stringRef = new SU.StringRef();
SU.StringCreate(stringRef);
SU.ComponentDefinitionGetName(componentDefinitionRef, stringRef);
ComponentName = Convert.ToStringAndRelease(stringRef);
// Note that a ComponentInstance can upcast into a DrawingElement.
// As such, it can have an instance-wide Material set for it that
// SketchUp will use on any Faces that use the defalt Material.
// But you cannot set the ComponentInstance's material; you must
// upcast first.
// Upcast to a DrawingElement and get the material name.
SU.DrawingElementRef drawingElementRef =
SU.ComponentInstanceToDrawingElement(instanceRef);
SU.MaterialRef materialRef = new SU.MaterialRef();
try
{
SU.DrawingElementGetMaterial(drawingElementRef, materialRef);
stringRef = new SU.StringRef();
SU.StringCreate(stringRef);
SU.MaterialGetNameLegacyBehavior(materialRef, stringRef);
MaterialName = Convert.ToStringAndRelease(stringRef);
}
catch (SketchUpException e)
{
if (e.ErrorCode == SU.ErrorNoData)
{
// Not an error. It just has no material.
}
else
{
throw;
}
}
}