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Rendering/vtkCellPicker.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkCellPicker.h,v $
00005   Language:  C++
00006 
00007 
00008 Copyright (c) 1993-2001 Ken Martin, Will Schroeder, Bill Lorensen 
00009 All rights reserved.
00010 
00011 Redistribution and use in source and binary forms, with or without
00012 modification, are permitted provided that the following conditions are met:
00013 
00014  * Redistributions of source code must retain the above copyright notice,
00015    this list of conditions and the following disclaimer.
00016 
00017  * Redistributions in binary form must reproduce the above copyright notice,
00018    this list of conditions and the following disclaimer in the documentation
00019    and/or other materials provided with the distribution.
00020 
00021  * Neither name of Ken Martin, Will Schroeder, or Bill Lorensen nor the names
00022    of any contributors may be used to endorse or promote products derived
00023    from this software without specific prior written permission.
00024 
00025  * Modified source versions must be plainly marked as such, and must not be
00026    misrepresented as being the original software.
00027 
00028 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
00029 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00030 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00031 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
00032 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00033 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00034 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00035 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00036 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00037 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00038 
00039 =========================================================================*/
00061 #ifndef __vtkCellPicker_h
00062 #define __vtkCellPicker_h
00063 
00064 #include "vtkPicker.h"
00065 
00066 class vtkGenericCell;
00067 
00068 class VTK_RENDERING_EXPORT vtkCellPicker : public vtkPicker
00069 {
00070 public:
00071   static vtkCellPicker *New();
00072   vtkTypeMacro(vtkCellPicker,vtkPicker);
00073   void PrintSelf(ostream& os, vtkIndent indent);
00074 
00076 
00077   vtkGetMacro(CellId, vtkIdType);
00079 
00081 
00082   vtkGetMacro(SubId, int);
00084 
00086 
00088   vtkGetVectorMacro(PCoords, float,3);
00090 
00091 protected:
00092   vtkCellPicker();
00093   ~vtkCellPicker();
00094 
00095   vtkIdType CellId; // picked cell
00096   int SubId; // picked cell subId
00097   float PCoords[3]; // picked cell parametric coordinates
00098 
00099   virtual float IntersectWithLine(float p1[3], float p2[3], float tol, 
00100                                   vtkAssemblyPath *path, vtkProp3D *p, 
00101                                   vtkAbstractMapper3D *m);
00102   void Initialize();
00103   
00104 private:
00105   vtkGenericCell *Cell; //used to accelerate picking
00106   
00107 private:
00108   vtkCellPicker(const vtkCellPicker&);  // Not implemented.
00109   void operator=(const vtkCellPicker&);  // Not implemented.
00110 };
00111 
00112 #endif
00113 
00114 

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