Bullet Collision Detection & Physics Library
btConvexPointCloudShape.h
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1 /*
2 Bullet Continuous Collision Detection and Physics Library
3 Copyright (c) 2003-2009 Erwin Coumans http://bulletphysics.org
4 
5 This software is provided 'as-is', without any express or implied warranty.
6 In no event will the authors be held liable for any damages arising from the use of this software.
7 Permission is granted to anyone to use this software for any purpose,
8 including commercial applications, and to alter it and redistribute it freely,
9 subject to the following restrictions:
10 
11 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
12 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
13 3. This notice may not be removed or altered from any source distribution.
14 */
15 
16 #ifndef BT_CONVEX_POINT_CLOUD_SHAPE_H
17 #define BT_CONVEX_POINT_CLOUD_SHAPE_H
18 
22 
25 {
28 
29 public:
31 
33  {
34  m_localScaling.setValue(1.f,1.f,1.f);
36  m_unscaledPoints = 0;
37  m_numPoints = 0;
38  }
39 
40  btConvexPointCloudShape(btVector3* points,int numPoints, const btVector3& localScaling,bool computeAabb = true)
41  {
42  m_localScaling = localScaling;
44  m_unscaledPoints = points;
45  m_numPoints = numPoints;
46 
47  if (computeAabb)
48  recalcLocalAabb();
49  }
50 
51  void setPoints (btVector3* points, int numPoints, bool computeAabb = true,const btVector3& localScaling=btVector3(1.f,1.f,1.f))
52  {
53  m_unscaledPoints = points;
54  m_numPoints = numPoints;
55  m_localScaling = localScaling;
56 
57  if (computeAabb)
58  recalcLocalAabb();
59  }
60 
62  {
63  return m_unscaledPoints;
64  }
65 
67  {
68  return m_unscaledPoints;
69  }
70 
72  {
73  return m_numPoints;
74  }
75 
77  {
78  return m_unscaledPoints[index] * m_localScaling;
79  }
80 
81 #ifndef __SPU__
82  virtual btVector3 localGetSupportingVertex(const btVector3& vec)const;
83  virtual btVector3 localGetSupportingVertexWithoutMargin(const btVector3& vec)const;
84  virtual void batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3* vectors,btVector3* supportVerticesOut,int numVectors) const;
85 #endif
86 
87 
88  //debugging
89  virtual const char* getName()const {return "ConvexPointCloud";}
90 
91  virtual int getNumVertices() const;
92  virtual int getNumEdges() const;
93  virtual void getEdge(int i,btVector3& pa,btVector3& pb) const;
94  virtual void getVertex(int i,btVector3& vtx) const;
95  virtual int getNumPlanes() const;
96  virtual void getPlane(btVector3& planeNormal,btVector3& planeSupport,int i ) const;
97  virtual bool isInside(const btVector3& pt,btScalar tolerance) const;
98 
100  virtual void setLocalScaling(const btVector3& scaling);
101 };
102 
103 
104 #endif //BT_CONVEX_POINT_CLOUD_SHAPE_H
105 
virtual const char * getName() const
btVector3 getScaledPoint(int index) const
const btVector3 * getUnscaledPoints() const
#define SIMD_FORCE_INLINE
Definition: btScalar.h:81
btConvexPointCloudShape(btVector3 *points, int numPoints, const btVector3 &localScaling, bool computeAabb=true)
void setPoints(btVector3 *points, int numPoints, bool computeAabb=true, const btVector3 &localScaling=btVector3(1.f, 1.f, 1.f))
btVector3 can be used to represent 3D points and vectors.
Definition: btVector3.h:83
#define ATTRIBUTE_ALIGNED16(a)
Definition: btScalar.h:82
The btPolyhedralConvexAabbCachingShape adds aabb caching to the btPolyhedralConvexShape.
#define BT_DECLARE_ALIGNED_ALLOCATOR()
Definition: btScalar.h:403
The btConvexPointCloudShape implements an implicit convex hull of an array of vertices.
float btScalar
The btScalar type abstracts floating point numbers, to easily switch between double and single floati...
Definition: btScalar.h:292