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vcg/space/box3.h
188
vcg/space/box3.h
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@ -24,6 +24,9 @@
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History
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$Log: not supported by cvs2svn $
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Revision 1.14 2006/11/13 13:03:45 ponchio
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Added GetBBox in Point3 (declaration) the body of the function is in box3.h
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Revision 1.13 2006/09/28 13:37:13 m_di_benedetto
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Added "const" to Collide()
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@ -72,7 +75,8 @@ First working release.
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#include <vcg/space/point3.h>
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#include <vcg/math/matrix44.h>
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#include <vcg/space/line3.h>
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#include <vcg/space/plane3.h>
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namespace vcg {
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@ -357,6 +361,187 @@ template <class T> Box3<T> Point3<T>::GetBBox(Box3<T> &bb) const {
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}
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template <class ScalarType>
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ScalarType DistancePoint3Box3(const Point3<ScalarType> &test,
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const Box3<ScalarType> &bbox)
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{
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///if fall inside return zero
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if (bbox.IsIn(test))
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return 0;
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///find the right quandrant
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bool XM=(test.X()>=bbox.max.X());
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bool Xm=(test.X()<=bbox.min.X());
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bool YM=(test.Y()>=bbox.max.Y());
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bool Ym=(test.Y()<=bbox.min.Y());
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bool ZM=(test.Z()>=bbox.max.Z());
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bool Zm=(test.Z()<=bbox.min.Z());
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///VERTICES CASES
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if ((Xm)&&(Ym)&&(Zm))
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return ((test-bbox.P(0)).Norm());
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if ((Ym)&&(Zm)&&(XM))
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return ((test-bbox.P(1)).Norm());
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if ((YM)&&(ZM)&&(Xm))
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return ((test-bbox.P(2)).Norm());
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if ((XM)&&(YM)&&(Zm))
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return ((test-bbox.P(3)).Norm());
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if ((Xm)&&(Ym)&&(ZM))
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return ((test-bbox.P(4)).Norm());
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if ((XM)&&(ZM)&&(Ym))
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return ((test-bbox.P(5)).Norm());
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if ((YM)&&(ZM)&&(Zm))
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return ((test-bbox.P(6)).Norm());
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if ((XM)&&(YM)&&(ZM))
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return ((test-bbox.P(7)).Norm());
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///EDGES CASES
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///edge case 0
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if ((XM)&&(Xm)&&(Ym)&&(Zm))
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{
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vcg::Line3<ScalarType> edge;
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vcg::Point3<ScalarType> dir=bbox.P(1)-bbox.P(0);
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dir.Normalize();
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edge.Set(bbox.P(0),dir);
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vcg::Point3<ScalarType> clos=vcg::ClosestPoint<ScalarType,true>(edge,test);
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return ((test-clos).Norm());
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}
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///edge case 1
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if ((ZM)&&(Zm)&&(XM)&&(Ym))
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{
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vcg::Line3<ScalarType> edge;
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vcg::Point3<ScalarType> dir=bbox.P(5)-bbox.P(1);
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dir.Normalize();
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edge.Set(bbox.P(1),dir);
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vcg::Point3<ScalarType> clos=vcg::ClosestPoint<ScalarType,true>(edge,test);
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return ((test-clos).Norm());
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}
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///edge case 2
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if ((XM)&&(Xm)&&(Ym)&&(ZM))
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{
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vcg::Line3<ScalarType> edge;
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vcg::Point3<ScalarType> dir=bbox.P(5)-bbox.P(4);
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dir.Normalize();
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edge.Set(bbox.P(4),dir);
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vcg::Point3<ScalarType> clos=vcg::ClosestPoint<ScalarType,true>(edge,test);
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return ((test-clos).Norm());
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}
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///edge case 3
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if ((ZM)&&(Zm)&&(Xm)&&(Ym))
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{
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vcg::Line3<ScalarType> edge;
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vcg::Point3<ScalarType> dir=bbox.P(4)-bbox.P(0);
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dir.Normalize();
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edge.Set(bbox.P(0),dir);
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vcg::Point3<ScalarType> clos=vcg::ClosestPoint<ScalarType,true>(edge,test);
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return ((test-clos).Norm());
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}
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///edge case 4
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if ((XM)&&(Xm)&&(YM)&&(Zm))
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{
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vcg::Line3<ScalarType> edge;
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vcg::Point3<ScalarType> dir=bbox.P(3)-bbox.P(2);
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dir.Normalize();
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edge.Set(bbox.P(2),dir);
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vcg::Point3<ScalarType> clos=vcg::ClosestPoint<ScalarType,true>(edge,test);
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return ((test-clos).Norm());
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}
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///edge case 5
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if ((ZM)&&(Zm)&&(XM)&&(YM))
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{
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vcg::Line3<ScalarType> edge;
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vcg::Point3<ScalarType> dir=bbox.P(7)-bbox.P(3);
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dir.Normalize();
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edge.Set(bbox.P(3),dir);
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vcg::Point3<ScalarType> clos=vcg::ClosestPoint<ScalarType,true>(edge,test);
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return ((test-clos).Norm());
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}
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///edge case 6
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if ((XM)&&(Xm)&&(ZM)&&(YM))
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{
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vcg::Line3<ScalarType> edge;
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vcg::Point3<ScalarType> dir=bbox.P(7)-bbox.P(6);
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dir.Normalize();
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edge.Set(bbox.P(6),dir);
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vcg::Point3<ScalarType> clos=vcg::ClosestPoint<ScalarType,true>(edge,test);
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return ((test-clos).Norm());
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}
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///edge case 7
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if ((ZM)&&(Zm)&&(Xm)&&(YM))
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{
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vcg::Line3<ScalarType> edge;
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vcg::Point3<ScalarType> dir=bbox.P(6)-bbox.P(2);
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dir.Normalize();
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edge.Set(bbox.P(2),dir);
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vcg::Point3<ScalarType> clos=vcg::ClosestPoint<ScalarType,true>(edge,test);
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return ((test-clos).Norm());
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}
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///edge case 8
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if ((YM)&&(Ym)&&(Xm)&&(Zm))
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{
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vcg::Line3<ScalarType> edge;
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vcg::Point3<ScalarType> dir=bbox.P(2)-bbox.P(0);
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dir.Normalize();
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edge.Set(bbox.P(0),dir);
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vcg::Point3<ScalarType> clos=vcg::ClosestPoint<ScalarType,true>(edge,test);
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return ((test-clos).Norm());
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}
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///edge case 9
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if ((YM)&&(Ym)&&(XM)&&(Zm))
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{
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vcg::Line3<ScalarType> edge;
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vcg::Point3<ScalarType> dir=bbox.P(3)-bbox.P(1);
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dir.Normalize();
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edge.Set(bbox.P(1),dir);
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vcg::Point3<ScalarType> clos=vcg::ClosestPoint<ScalarType,true>(edge,test);
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return ((test-clos).Norm());
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}
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///edge case 10
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if ((YM)&&(Ym)&&(XM)&&(ZM))
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{
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vcg::Line3<ScalarType> edge;
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vcg::Point3<ScalarType> dir=bbox.P(7)-bbox.P(5);
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dir.Normalize();
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edge.Set(bbox.P(5),dir);
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vcg::Point3<ScalarType> clos=vcg::ClosestPoint<ScalarType,true>(edge,test);
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return ((test-clos).Norm());
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}
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///edge case 11
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if ((YM)&&(Ym)&&(Xm)&&(ZM))
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{
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vcg::Line3<ScalarType> edge;
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vcg::Point3<ScalarType> dir=bbox.P(6)-bbox.P(4);
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dir.Normalize();
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edge.Set(bbox.P(4),dir);
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vcg::Point3<ScalarType> clos=vcg::ClosestPoint<ScalarType,true>(edge,test);
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return ((test-clos).Norm());
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}
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///FACES CASES
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//face 0
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if ((Xm)&&(XM)&&(Zm)&&(ZM)&&(Ym))
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return (fabs(bbox.min.Y()-test.Y()));
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//face 1
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if ((Xm)&&(XM)&&(Zm)&&(ZM)&&(YM))
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return (fabs(bbox.min.Y()-test.Y()));
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//face 2
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if ((Xm)&&(XM)&&(Ym)&&(YM)&&(Zm))
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return (fabs(bbox.min.Z()-test.Z()));
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//face 3
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if ((Xm)&&(XM)&&(Ym)&&(YM)&&(ZM))
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return (fabs(bbox.min.Z()-test.Z()));
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//face 4
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if ((Ym)&&(YM)&&(Zm)&&(ZM)&&(Xm))
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return (fabs(bbox.min.X()-test.X()));
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//face 5
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if ((Ym)&&(YM)&&(Zm)&&(ZM)&&(XM))
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return (fabs(bbox.min.X()-test.X()));
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//no more cases
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assert(0);
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}
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typedef Box3<short> Box3s;
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typedef Box3<int> Box3i;
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@ -368,3 +553,4 @@ typedef Box3<double> Box3d;
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} // end namespace
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#endif
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