anchor

The anchor of the model symbol layer. The anchor determines how the ModelSymbolLayer is positioned relative to the geometry. SymbolAnchor specifies the 3D model's anchor point and anchor placement mode. When you rotate or resize a model symbol layer, the transformation originates from the anchor point.

The anchor defaults to null, which is the origin of the 3D model or ModelShape. An anchor with SymbolAnchorPlacementMode.Absolute is not supported for model symbol layers. See the SymbolAnchor documentation for a detailed description of the object.