Class TIndexedFaceSetNode

Description

Hierarchy

Methods

Properties

Unit

X3DNodes

Declaration

type TIndexedFaceSetNode = class(TAbstractComposedGeometryNode)

Description

Mesh with faces (polygons) constructed from vertices. This is probably the most universal, and most often used, geometry node in X3D.

Source: scene/x3d/x3dnodes_standard_geometry3d.inc (line 187).

Hierarchy

Overview

Methods

Public	`constructor Create(const AX3DName: String = ''; const ABaseUrl: String = ''); override;`
Public	`function ConvexField: TSFBool; override;`
Public	`class function ForVRMLVersion(const Version: TX3DVersion): boolean; override;`
Public	`function CoordIndexField: TMFLong; override;`
Public	`procedure InternalCoordPolygons( State: TX3DGraphTraverseState; PolygonHandler: TIndexedPolygonHandler); override;`
Public	`function TrianglesCount(State: TX3DGraphTraverseState; ProxyGeometry: TAbstractGeometryNode; ProxyState: TX3DGraphTraverseState): Cardinal; override;`
Public	`procedure CreateNode; override;`
Public	`class function ClassX3DType: String; override;`
Public	`procedure SetColorIndex(const Value: array of Int32); overload;`
Public	`procedure SetColorIndex(const Value: TInt32List); overload;`
Public	`procedure SetCoordIndex(const Value: array of Int32); overload;`
Public	`procedure SetCoordIndex(const Value: TInt32List); overload;`
Public	`procedure SetNormalIndex(const Value: array of Int32); overload;`
Public	`procedure SetNormalIndex(const Value: TInt32List); overload;`
Public	`procedure SetTexCoordIndex(const Value: array of Int32); overload;`
Public	`procedure SetTexCoordIndex(const Value: TInt32List); overload;`

Properties

Public	`property EventSet_colorIndex: TMFInt32Event read FEventSet_colorIndex;`
Public	`property EventSet_coordIndex: TMFInt32Event read FEventSet_coordIndex;`
Public	`property EventSet_normalIndex: TMFInt32Event read FEventSet_normalIndex;`
Public	`property EventSet_texCoordIndex: TMFInt32Event read FEventSet_texCoordIndex;`
Public	`property FdColorIndex: TMFInt32 read FFdColorIndex;`
Public	`property FdConvex: TSFBool read FFdConvex;`
Public	`property Convex: Boolean read GetConvex write SetConvex;`
Public	`property FdCoordIndex: TMFInt32 read FFdCoordIndex;`
Public	`property FdCreaseAngle: TSFFloat read FFdCreaseAngle;`
Public	`property CreaseAngle: Single read GetCreaseAngle write SetCreaseAngle;`
Public	`property FdNormalIndex: TMFInt32 read FFdNormalIndex;`
Public	`property FdTexCoordIndex: TMFInt32 read FFdTexCoordIndex;`

Description

Methods

Public constructor Create(const AX3DName: String = ''; const ABaseUrl: String = ''); override;

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.

Source: scene/x3d/x3dnodes_standard_geometry3d.inc (line 198).

Public function ConvexField: TSFBool; override;

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.

Source: scene/x3d/x3dnodes_standard_geometry3d.inc (line 200).

Public class function ForVRMLVersion(const Version: TX3DVersion): boolean; override;

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.

Source: scene/x3d/x3dnodes_standard_geometry3d.inc (line 202).

Public function CoordIndexField: TMFLong; override;

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.

Source: scene/x3d/x3dnodes_standard_geometry3d.inc (line 205).

Public procedure InternalCoordPolygons( State: TX3DGraphTraverseState; PolygonHandler: TIndexedPolygonHandler); override;

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.

Source: scene/x3d/x3dnodes_standard_geometry3d.inc (line 207).

Public function TrianglesCount(State: TX3DGraphTraverseState; ProxyGeometry: TAbstractGeometryNode; ProxyState: TX3DGraphTraverseState): Cardinal; override;

This item has no description.

Source: scene/x3d/x3dnodes_standard_geometry3d.inc (line 211).

Public procedure CreateNode; override;

Create node fields and events.

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 33).

Public class function ClassX3DType: String; override;

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.

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 34).

Public procedure SetColorIndex(const Value: array of Int32); overload;

This item has no description.

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 64).

Public procedure SetColorIndex(const Value: TInt32List); overload;

This item has no description.

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 66).

Public procedure SetCoordIndex(const Value: array of Int32); overload;

This item has no description.

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 78).

Public procedure SetCoordIndex(const Value: TInt32List); overload;

This item has no description.

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 80).

Public procedure SetNormalIndex(const Value: array of Int32); overload;

This item has no description.

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 92).

Public procedure SetNormalIndex(const Value: TInt32List); overload;

This item has no description.

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 94).

Public procedure SetTexCoordIndex(const Value: array of Int32); overload;

This item has no description.

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 100).

Public procedure SetTexCoordIndex(const Value: TInt32List); overload;

This item has no description.

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 102).

Properties

Public property EventSet_colorIndex: TMFInt32Event read FEventSet_colorIndex;

This item has no description.

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 39).

Public property EventSet_coordIndex: TMFInt32Event read FEventSet_coordIndex;

This item has no description.

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 45).

Public property EventSet_normalIndex: TMFInt32Event read FEventSet_normalIndex;

This item has no description.

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 51).

Public property EventSet_texCoordIndex: TMFInt32Event read FEventSet_texCoordIndex;

This item has no description.

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 57).

Public property FdColorIndex: TMFInt32 read FFdColorIndex;

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).

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 62).

Public property FdConvex: TSFBool read FFdConvex;

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).

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 70).

Public property Convex: Boolean read GetConvex write SetConvex;

This item has no description.

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 72).

Public property FdCoordIndex: TMFInt32 read FFdCoordIndex;

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).

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 76).

Public property FdCreaseAngle: TSFFloat read FFdCreaseAngle;

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).

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 84).

Public property CreaseAngle: Single read GetCreaseAngle write SetCreaseAngle;

This item has no description.

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 86).

Public property FdNormalIndex: TMFInt32 read FFdNormalIndex;

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).

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 90).

Public property FdTexCoordIndex: TMFInt32 read FFdTexCoordIndex;

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).

Source: scene/x3d/auto_generated_node_helpers/x3dnodes_indexedfaceset.inc (line 98).

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Castle Game Engine

API Reference

Class TIndexedFaceSetNode

Unit

Declaration

Description

Hierarchy

Overview

Methods

Properties

Description

Methods

Properties