PlaneSliceModel3DGroup(Model3DGroup, Transform3D) Method

public Model3DGroup SliceModel3DGroup(
	Model3DGroup model3DGroup,
	Transform3D parentTransform = null
)

Parameters

model3DGroup  Model3DGroup

Model3DGroup

parentTransform  Transform3D  (Optional)

Transform3D that is added to the model3DGroup (null by default)

Return Value

SliceModel3DGroup slices the 3D models defined by Model3DGroup with this Plane and returns a new Model3DGroup with models that are in front of the plane (in the direction of plane's Normal vector). The models that are fully in front of the Plane are not changed (the same instances are used). The models that intersect the Plane are sliced and new models are created from them.

Note for using with textured objects: SliceModel3DGroup correctly calculates sliced TextureCoordinates, but to show the texture correctly, the ViewportUnits on ImageBrush needs to be set to BrushMappingMode.Absolute. It should not be set to BrushMappingMode.RelativeToBoundingBox (a default value in WPF). In case of RelativeToBoundingBox, both sliced parts of the 3D model will still show the whole texture).

Reference