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graphics/vtkSpline.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkSpline.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 =========================================================================*/
00066 #ifndef __vtkSpline_h
00067 #define __vtkSpline_h
00068 
00069 #include <stdio.h>
00070 #include "vtkObject.h"
00071 #include "vtkPiecewiseFunction.h"
00072 
00073 class VTK_EXPORT vtkSpline : public vtkObject
00074 {
00075 public:
00076   vtkTypeMacro(vtkSpline,vtkObject);
00077   void PrintSelf(ostream& os, vtkIndent indent);
00078 
00081   vtkSetMacro(ClampValue,int);
00082   vtkGetMacro(ClampValue,int);
00083   vtkBooleanMacro(ClampValue,int);
00084 
00086   virtual void Compute () = 0;
00087 
00089   void AddPoint (float t, float x);
00090 
00092   void RemovePoint (float t);
00093  
00095   void RemoveAllPoints ();
00096 
00100   vtkSetMacro(Closed,int);
00101   vtkGetMacro(Closed,int);
00102   vtkBooleanMacro(Closed,int);
00103 
00110   vtkSetClampMacro(LeftConstraint,int,1,3);
00111   vtkGetMacro(LeftConstraint,int);
00112   vtkSetClampMacro(RightConstraint,int,1,3);
00113   vtkGetMacro(RightConstraint,int);
00114   vtkSetMacro(LeftValue,float);
00115   vtkGetMacro(LeftValue,float);
00116   vtkSetMacro(RightValue,float);
00117   vtkGetMacro(RightValue,float);
00118 
00120   unsigned long GetMTime();
00121 
00122 protected:
00123   vtkSpline();
00124   ~vtkSpline ();
00125   vtkSpline(const vtkSpline&) {};
00126   void operator=(const vtkSpline&) {};
00127 
00128   unsigned long ComputeTime;
00129   int ClampValue;
00130   float *Intervals;
00131   float *Coefficients;
00132   int LeftConstraint;
00133   float LeftValue;
00134   int RightConstraint;
00135   float RightValue;
00136   vtkPiecewiseFunction *PiecewiseFunction;
00137   int Closed;
00138 };
00139 
00140 #endif
00141 

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