vtkPlane.h
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00034 #ifndef __vtkPlane_h
00035 #define __vtkPlane_h
00036
00037 #include "vtkImplicitFunction.h"
00038
00039 class VTK_COMMON_EXPORT vtkPlane : public vtkImplicitFunction
00040 {
00041 public:
00043 static vtkPlane *New();
00044
00045 vtkTypeRevisionMacro(vtkPlane,vtkImplicitFunction);
00046 void PrintSelf(ostream& os, vtkIndent indent);
00047
00049
00050 float EvaluateFunction(float x[3]);
00051 float EvaluateFunction(float x, float y, float z)
00052 {return this->vtkImplicitFunction::EvaluateFunction(x, y, z); } ;
00054
00056 void EvaluateGradient(float x[3], float g[3]);
00057
00059
00060 vtkSetVector3Macro(Normal,float);
00061 vtkGetVectorMacro(Normal,float,3);
00063
00065
00067 vtkSetVector3Macro(Origin,float);
00068 vtkGetVectorMacro(Origin,float,3);
00070
00073 void Push(float distance);
00074
00076
00079 static void ProjectPoint(float x[3], float origin[3], float normal[3],
00080 float xproj[3]);
00081 static void ProjectPoint(double x[3], double origin[3], double normal[3],
00082 double xproj[3]);
00084
00086
00089 static void GeneralizedProjectPoint(float x[3], float origin[3],
00090 float normal[3], float xproj[3]);
00092
00094
00095 static float Evaluate(float normal[3], float origin[3], float x[3]);
00096 static float Evaluate(double normal[3], double origin[3], double x[3]);
00098
00101 static float DistanceToPlane(float x[3], float n[3], float p0[3]);
00102
00104
00109 static int IntersectWithLine(float p1[3], float p2[3], float n[3],
00110 float p0[3], float& t, float x[3]);
00112
00113
00114 protected:
00115 vtkPlane();
00116 ~vtkPlane() {};
00117
00118 float Normal[3];
00119 float Origin[3];
00120
00121 private:
00122 vtkPlane(const vtkPlane&);
00123 void operator=(const vtkPlane&);
00124 };
00125
00126 inline float vtkPlane::Evaluate(float normal[3], float origin[3], float x[3])
00127 {
00128 return normal[0]*(x[0]-origin[0]) + normal[1]*(x[1]-origin[1]) +
00129 normal[2]*(x[2]-origin[2]);
00130 }
00131 inline float vtkPlane::Evaluate(double normal[3], double origin[3],double x[3])
00132 {
00133 return static_cast<float> (normal[0]*(x[0]-origin[0]) + normal[1]*(x[1]-origin[1]) +
00134 normal[2]*(x[2]-origin[2]));
00135 }
00136
00137 inline float vtkPlane::DistanceToPlane(float x[3], float n[3], float p0[3])
00138 {
00139 #define vtkPlaneAbs(x) ((x)<0?-(x):(x))
00140 return ((float) vtkPlaneAbs(n[0]*(x[0]-p0[0]) + n[1]*(x[1]-p0[1]) +
00141 n[2]*(x[2]-p0[2])));
00142 }
00143
00144 #endif
00145
00146