GeometryMesh Class


GeometryMesh Class

GeometryMesh class is used to create Index and Vertex buffers from list of positions, normals, textureCoordinates and triangleIndices.

Inheritance Hierarchy

Namespace: Ab3d.DirectX
Assembly: Ab3d.DXEngine (in Ab3d.DXEngine.dll) Version: 7.0.8865.1045

Syntax

public class GeometryMesh : MeshBase, 
	IRayHitTestedObject, ITriangularMesh, IOctTreeMesh

The GeometryMesh type exposes the following members.

Constructors

	Name	Description
	GeometryMesh(String)	Constructor
	GeometryMesh(IListVector3, IListVector3, IListVector2, IListInt32, String)	Constructor

Properties

	Name	Description
	Normals	Gets or sets IList of Vector3 that represents the Normals. When this property is changed, the RecreateMesh method must be called.
	OctTree	Gets or sets an MeshOctTree that can be used for hit testing. The MeshOctTree is automatically generated when number of positions in this mesh is bigger or equal to the value set in MeshPositionsCountForOctTreeGeneration.
	Positions	Gets or sets IList of Vector3 that represents the Positions. When this property is changed, the RecreateMesh method must be called.
	TextureCoordinates	Gets or sets IList of Vector2 that represents the TextureCoordinates. When this property is changed, the RecreateMesh method must be called.
	TriangleIndices	Gets or sets IList of ints that represents the triangle indices. When this property is changed, the RecreateMesh method must be called.
	TrianglesCount	Gets the number of triangles that are used to define this mesh.

Methods

	Name	Description
	CreateOctTree	CreateOctTree returns a MeshOctTree that is created from the mesh defined in this GeometryMesh.
	GetClosestHitResult	GetClosestHitResult method returns a DXRayHitTestResult with the closest triangle hit by the specified ray. When no triangle is hit, null is returned.
	GetNextHitResult	GetNextHitResult method continues hit testing from the previously returned hit test and returns a DXRayHitTestResult with the next hit triangle (not necessary the next closest triangle) or null if no other triangle is hit. This method can be used to get all hit results.
	GetTrianglePositions	GetTrianglePositions sets the 3 positions that define the triangle with the specified triangle index.
	HitTest	HitTest method test the triangles defined in this mesh for hitting with the specified ray. When getOnlyNextHitTest is false, then the closest hit result is returned, else the next hit result is returned. When no hit is found, null is returned.
	RecreateMesh	RecreateMesh disposes the existing VertexBuffers and IndexBuffer and recreates the buffers.
	UpdateBounds	Updates the Bounds of this mesh