Class TIndexedFaceSetNode

This item has no description. Showing description inherited from TX3DNode.Create.

Constructor. Initializes various properties:

• Name, BaseUrl are initialized from given parameters.

• The Fields, Events lists are filled in every descendant, to have all the fields/events defined by the specification.

• DefaultContainerField, and other node-specific stuff, is filled in descendants. This is actually implemented in CreateNode, that is called at the end of this constructor.

This item has no description. Showing description inherited from TAbstractGeometryNode.ConvexField.

Are faces guaranteed to be convex. Nil if given geometry node doesn't have a field to control it.

This item has no description. Showing description inherited from TX3DNode.ForVRMLVersion.

Some nodes are present only in specific VRML/X3D version. This functions decides it.

For example some nodes can only work in VRML < 2.0, some others only in VRML >= 2.0. There are even some pairs of nodes: for example TConeNode_1 works with VRML < 2.0, TConeNode works with VRML >= 2.0.

NodesManager will use this.

Default implementation of this function returns always True. Generally, I don't try to set this too aggresively — in other words, for all cases when it's sensible, I allow nodes to be used in every VRML/X3D version, even when official specification doesn't. This means that when reading VRML 1.0 files actually a large part of VRML 2.0 is allowed too, and also while reading VRML 2.0 many constructs from VRML 1.0 (officially no longer present in VRML 2.0) are allowed too. I'm trying to support what I call a "sum of VRML 1.0 and 2.0".

In practice I only use this function when various VRML/X3D versions specify the same node name but

• With different fields.

  For example Cone and Cylinder have slightly different fields, due to the fact that VRML 2.0 resigned from using TSFBitMask fields.

• With different behavior.

  For example definitions of Sphere for VRML 1.0 and 2.0 are practically equal. However, the behavior from where to take texture and material info is different — in VRML 1.0 we take last Texture2, Material etc. nodes, while in VRML 2.0 we look in parent Shape's "appearance" field. So once again two different Sphere classes are needed.

This item has no description. Showing description inherited from TAbstractGeometryNode.CoordIndexField.

Node's list of coordinate indexes.

In base TAbstractGeometryNode class this always returns Nil.

Override this for descendants that have some kind of "coordIndex" or "index" field used to index InternalCoord array.

This item has no description. Showing description inherited from TAbstractGeometryNode.InternalCoordPolygons.

Splits coordinate-based node into polygons.

Indexes in PolygonHandler point to CoordIndex, if assigned, or directly to Coord. The ordering of generated polygons is correct, so what pointed CCW in the node field, will still point CCW according to generated PolygonHandler indexes.

In this class this does nothing. Some, but not all, coordinate-based nodes (the ones when InternalCoord returns True) override this. So currently, whether this is implemented is coordinated with CastleInternalNormals and such internal needs.

This item has no description.

Create node fields and events.

This item has no description. Showing description inherited from TX3DNode.ClassX3DType.

Node type name in VRML/X3D, for this class. Normal VRML/X3D node classes should override this to return something non-empty, and then X3DType automatically will return the same value.

Empty for classes that don't have a hardcoded VRML/X3D node name, like a special TX3DUnknownNode. Such special classes should override then X3DType to return actual non-empty name there.

You usually should call X3DType. The only use of this method is that it works on classes (it's "class function"), without needing at actual instance.

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Internal wrapper for property ColorIndex. This wrapper API may change, we advise to access simpler ColorIndex instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).

Internal wrapper for property Convex. This wrapper API may change, we advise to access simpler Convex instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).

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Internal wrapper for property CoordIndex. This wrapper API may change, we advise to access simpler CoordIndex instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).

Internal wrapper for property CreaseAngle. This wrapper API may change, we advise to access simpler CreaseAngle instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).

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Internal wrapper for property NormalIndex. This wrapper API may change, we advise to access simpler NormalIndex instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).

Internal wrapper for property TexCoordIndex. This wrapper API may change, we advise to access simpler TexCoordIndex instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).