SheetNode¶

class SheetNode¶

Bases: AcronNode

This class draws a visible representation of the NURBS surface stored in its NurbsSurfaceEvaluator. It automatically recomputes the surface every frame.

This is not related to NurbsSurface, CubicSurfaceseg or any of the ParametricSurface-derived objects in this module. It is a completely parallel implementation of NURBS surfaces, and will probably eventually replace the whole ParametricSurface class hierarchy.

Inheritance diagram

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SheetNode.__init__()¶

static SheetNode.get_class_type()¶

SheetNode.get_num_u_subdiv()¶: Returns the number of subdivisions per cubic segment to draw in the U direction. See set_num_u_subdiv().

SheetNode.get_num_v_subdiv()¶: Returns the number of subdivisions per cubic segment to draw in the V direction. See set_num_v_subdiv().

SheetNode.get_surface()¶: Returns the surface represented by the SheetNode.

SheetNode.get_use_vertex_color()¶: Returns the “use vertex color” flag. See set_use_vertex_color().

SheetNode.reset_bound()¶: Recomputes the bounding volume. This is normally called automatically, but it must occasionally be called explicitly when the surface has changed properties outside of this node’s knowledge.

SheetNode.set_num_u_subdiv()¶: Specifies the number of subdivisions per cubic segment (that is, per unique knot value) to draw in a fixed uniform tesselation of the surface in the U direction.

SheetNode.set_num_v_subdiv()¶: Specifies the number of subdivisions per cubic segment (that is, per unique knot value) to draw in a fixed uniform tesselation of the surface in the V direction.

SheetNode.set_surface()¶: Sets the particular surface represented by the SheetNode.

SheetNode.set_use_vertex_color()¶: Sets the “use vertex color” flag. When this is true, the R, G, B, A vertex color is assumed to be stored as the dimensions 0, 1, 2, 3, respectively, of the extended vertex values. Use NurbsCurveEvaluator::set_extended_vertex() to set these values.