source: GTP/trunk/Lib/Vis/OnlineCullingCHC/OGRE/include/OgreKdTreeHierarchyInterface.h @ 1170

Revision 1170, 3.4 KB checked in by szydlowski, 18 years ago (diff)

continued work on the hierarchy interface

Line 
1/*
2-----------------------------------------------------------------------------
3This source file is part of the GameTools Project
4http://www.gametools.org
5
6Author: Martin Szydlowski
7-----------------------------------------------------------------------------
8*/
9
10#ifndef _OgreKdTreeHierarchyInterface_H_
11#define _OgreKdTreeHierarchyInterface_H_
12
13#include "OgrePlatformHierarchyInterface.h"
14
15namespace Ogre
16{
17
18class KdTreeSceneManager;
19
20class KdTreeHierarchyInterface : public PlatformHierarchyInterface
21{
22public:
23        KdTreeHierarchyInterface(KdTreeSceneManager *sm, RenderSystem *rsys);
24
25        virtual ~KdTreeHierarchyInterface() {};
26
27        /** Returns true if current node is leaf of the hierarchy.
28        @param node hierarchy node
29        @returns true if node is leaf
30        */
31        virtual bool IsLeaf(GtpVisibility::HierarchyNode *node) const;
32        /** Traverses and renders the hierarchy from the given node.
33        @param node the hierarchy node
34        */
35        virtual void TraverseNode(GtpVisibility::HierarchyNode *node);
36        /** Renders the given hierarchy node.
37        @param node current hierarchy node to be rendered
38        */
39        virtual void RenderNode(GtpVisibility::HierarchyNode *node);
40        /** Pulls up the visibility from the current node recursively to the parent nodes.
41        @param node the current node
42        */
43        virtual void PullUpVisibility(GtpVisibility::HierarchyNode *node) const;
44
45        /** Returns distance of the node to the view plane.
46        @param node the hierarchy node
47        */                     
48        virtual float GetSquaredDistance(GtpVisibility::HierarchyNode *node) const;
49        /** Returns pointer to bounding box of node.
50        @param node current hierarchy node
51        @returns bounding box of current node
52        */
53        virtual AxisAlignedBox *GetBoundingBox(GtpVisibility::HierarchyNode *node);
54        /** Returns true if there is renderable geometry attached to this node
55        @param node the current node
56        @returns if the node has renderable geometry
57        */
58        virtual bool HasGeometry(GtpVisibility::HierarchyNode *node) const;
59        /** Sets the visible flag for this node.
60        @param node the current node
61        @param visible the visible flag
62        */
63        virtual void SetNodeVisible(GtpVisibility::HierarchyNode *node, const bool visible) const;
64        /** Returns true if node has the visible flag set. See set
65        */
66        virtual bool IsNodeVisible(GtpVisibility::HierarchyNode *node) const;
67        /** Sets the last visited frame id for this node.
68        @param node the current node
69        @param frameId the current frame id
70        */
71        virtual void SetLastVisited(GtpVisibility::HierarchyNode *node, const unsigned int frameId) const;
72        /** Returns frame id when this node was last visited by the traverser. See set
73        */
74        virtual unsigned int LastVisited(GtpVisibility::HierarchyNode *node) const;
75
76
77        /** Visualization of a culled node, dependent on the culling type.
78        @param node the hierarchy node to be visualized
79        @param type can be one of FRUSTUM_CULLED, QUERY_CULLED
80        */
81        virtual void VisualizeCulledNode(GtpVisibility::HierarchyNode *node,
82                GtpVisibility::CullingType type) const;
83
84
85        /** Returns the geometry of a given hierarchy node.
86        @param node the hierarchy node containing the geometry
87        @param geometryList geometry is returned in this list
88        @param includeChildren if the geometry of the children should be taken into account
89        */
90        virtual void GetNodeGeometryList(GtpVisibility::HierarchyNode *node,   
91                GtpVisibility::GeometryVector *geometryList,
92                bool includeChildren);
93
94
95};
96
97} // namespace Ogre
98
99#endif // _OgreKdTreeHierarchyInterface_H_
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