MeshOctreeNode Class


MeshOctreeNode Class

MeshOctreeNode class represents one node in a MeshOctree data structure. Each node represents its part of the 3D space that is defined by the BoundingBox. The node contains triangles that can be fully fitted into node's BoundingBox (and do not find in any of the child nodes). Each node (except the nodes on the MaxNodeLevel) can have up to 8 child MeshOctreeNodes (number can be lower in case some nodes does not contain any triangles).

Inheritance Hierarchy

SystemObject
Ab4d.SharpEngine.UtilitiesMeshOctreeNode

Namespace: Ab4d.SharpEngine.Utilities
Assembly: Ab4d.SharpEngine (in Ab4d.SharpEngine.dll) Version: 3.2.9386+3a404a3e1ebfa4efd231da7fe6f10dfb23b95dc4

Syntax

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public class MeshOctreeNode

The MeshOctreeNode type exposes the following members.

Constructors

	Name	Description
	MeshOctreeNode	Creates an instance of MeshOctreeNode

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Methods

	Name	Description
	AddTriangle	Adds a triangle with the specified triangleBoundingBox and index to this or any child node.
	CollectBoundingBoxesInLevel	CollectBoundingBoxesInLevel is a diagnostics method and fills the boundingBoxes list with bounding boxes from child nodes.
	CollectNodesCountInLevel	CollectNodesCountInLevel is a diagnostics method and returns the number of nodes (MeshOctreeNode objects) in the specified targetNodeLevel level.
	CollectNodesTrianglesCountInLevel	CollectNodesTrianglesCountInLevel is a diagnostics method and fills a list of triangles count as int values with number of triangles in each node
	GetAllHitResults	Hit test a ray against the triangles in this and child MeshOctreeNodes and adds all hit result int the specified hitResults list.
	GetTrianglesCountInLevel	Gets number of triangles in the specified node and its child nodes.
	HitTest	Hit test a ray against the triangles in this and child MeshOctreeNodes and returns the closest hit result.
	Optimize	Optimize method optimizes this octree node and its child nodes. It is possible to remove empty child nodes and in case of a single child node move its triangles to this node. This method is automatically called from the MeshOctree constructor.

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Fields

	Name	Description
	ActualBoundingBox	Bounding box created from actually containing positions
	ChildNodes	List of child MeshOctreeNode objects. The number of child MeshOctreeNode objects can be lower than 8 when Optimize(Boolean, Boolean) method is called to remove empty MeshOctreeNode objects.
	HasChildTriangles	Boolean value that specifies if this MeshOctree has any child triangles (set to true the first time the AddTriangle(Int32, BoundingBox) method is called).
	NodeBoundingBox	BoundingBox of this node (calculated as 1/8 part of its parent)
	NodeLevel	level of this node (level 1 is the first level)
	ParentMashOctree	Parent MeshOctree
	TriangleIndexes	List of triangle indexes that are contained in this MeshOctreeNode. To get the index of triangle index in the TriangleIndicesArray, multiplying the values from this list with 3.

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Remarks

[Missing <remarks> documentation for "T:Ab4d.SharpEngine.Utilities.MeshOctreeNode"]

Reference

Ab4d.SharpEngine.Utilities Namespace