Class TDisk2DNode

Unit

Declaration

type TDisk2DNode = class(TAbstractGeometryNode)

Description

Disc (filled circle) in 2D.

Hierarchy

Overview

Methods

Public constructor Create(const AX3DName: string = ''; const ABaseUrl: string = ''); override;
Public function Proxy(var State: TX3DGraphTraverseState): TAbstractGeometryNode; override;
Public function SolidField: TSFBool; override;
Public procedure CreateNode; override;
Public class function ClassX3DType: string; override;

Properties

Public property FdInnerRadius: TSFFloat read FFdInnerRadius;
Public property InnerRadius: Single read GetInnerRadius write SetInnerRadius;
Public property FdOuterRadius: TSFFloat read FFdOuterRadius;
Public property OuterRadius: Single read GetOuterRadius write SetOuterRadius;
Public property FdSolid: TSFBool read FFdSolid;

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.

Public function Proxy(var State: TX3DGraphTraverseState): TAbstractGeometryNode; override;

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

Converts this node to another node class that may be better supported.

Typically, converts some complex geometry node (like Extrusion or Teapot) into more common node like IndexedFaceSet or IndexedTriangleSet. TShape class wraps this method into a more comfortable interface, that is TShape methods simply automatically convert geometry nodes to their proxy versions if needed.

In the base TAbstractGeometryNode class, returns Nil indicating that no conversion is known.

The resulting node's Name (if the result is not Nil) must be equal to our Name.

Some Proxy implementations (especially for VRML 1.0) will have to create new State (TX3DGraphTraverseState) instance along with a new geometry node. You should do this by copying the State into a new TX3DGraphTraverseState instance, and modyfying the State reference. Simply speaking, do

#
        State := TX3DGraphTraverseState.CreateCopy(State);

#)

You should not just modify the fields of the provided State instance. (Reasoning: some proxy methods rely on getting the original State, e.g. with original MaterialBinding, not the transformed state, to work correctly.)

You can modify State variable only when returning non-nil geometry.

Public function SolidField: TSFBool; override;

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

Is backface culling used. Nil if given geometry node doesn't have a field to control it.

Public procedure CreateNode; override;

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

Automatically generated node properties.

Do not edit this file manually! To add new properties: - add them to the text files in tools/internal/x3d-nodes-to-pascal/nodes-specification/ , - and regenerate include files by running x3d-nodes-to-pascal

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.

Properties

Public property FdInnerRadius: TSFFloat read FFdInnerRadius;

Internal wrapper for property InnerRadius. This wrapper API may change, we advise to access simpler InnerRadius instead.

Public property InnerRadius: Single read GetInnerRadius write SetInnerRadius;

This item has no description.

Public property FdOuterRadius: TSFFloat read FFdOuterRadius;

Internal wrapper for property OuterRadius. This wrapper API may change, we advise to access simpler OuterRadius instead.

Public property OuterRadius: Single read GetOuterRadius write SetOuterRadius;

This item has no description.

Public property FdSolid: TSFBool read FFdSolid;

Internal wrapper for property Solid. This wrapper API may change, we advise to access simpler Solid instead.


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