SheetNode

from panda3d.core import SheetNode
class SheetNode

Bases:

Bases: PandaNode

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

Inheritance diagram of SheetNode

__init__(name: str)
static get_class_type() → TypeHandle
get_num_u_subdiv() → int

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

get_num_v_subdiv() → int

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

get_surface() → NurbsSurfaceEvaluator

Returns the surface represented by the SheetNode.

get_use_vertex_color() → bool

Returns the “use vertex color” flag. See set_use_vertex_color().

reset_bound(rel_to: NodePath)

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.

set_num_u_subdiv(num_u_subdiv: int)

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.

set_num_v_subdiv(num_v_subdiv: int)

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.

set_surface(surface: NurbsSurfaceEvaluator)

Sets the particular surface represented by the SheetNode.

set_use_vertex_color(flag: bool)

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.