TextureMapping.Evaluate Method (Point3d, Vector3d, Point3d, Transform, Transform)

TextureMappingEvaluate Method (Point3d, Vector3d, Point3d, Transform, Transform)

Evaluate the mapping to get a texture coordinate

Namespace:  Rhino.Render
Assembly:  RhinoCommon (in RhinoCommon.dll)
Since: 6.17
Syntax
Copy
public int Evaluate(
	Point3d p,
	Vector3d n,
	out Point3d t,
	Transform pXform,
	Transform nXform
)
Public Function Evaluate ( 
	p As Point3d,
	n As Vector3d,
	<OutAttribute> ByRef t As Point3d,
	pXform As Transform,
	nXform As Transform
) As Integer

Parameters

p
Type: Rhino.GeometryPoint3d
Vertex location
n
Type: Rhino.GeometryVector3d
If the mapping projection is ray_projection, then this is the vertex unit normal. Otherwise n is ignored.
t
Type: Rhino.GeometryPoint3d
Texture coordinate (u,v,w)
pXform
Type: Rhino.GeometryTransform
Transformation to be applied to P before performing the mapping calculation.
nXform
Type: Rhino.GeometryTransform
Transformation to be applied to N before performing the mapping calculation. One way to calculate nXxform is to use the call pXform::GetVectorTransform(nXform).

Return Value

Type: Int32
Nonzero if evaluation is successful. When the mapping is a box or capped cylinder mapping, the value indicates which side was evaluated. Cylinder mapping: 1 = cylinder wall, 2 = bottom cap, 3 = top cap Box mapping: 1 = front, 2 = right, 3 = back, 4 = left, 5 = bottom, 6 = top
See Also

M:Rhino.Render.TextureMapping.Evaluate(Rhino.Geometry.Point3d,Rhino.Geometry.Vector3d,Rhino.Geometry.Point3d@,Rhino.Geometry.Transform,Rhino.Geometry.Transform)