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89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkPiecewiseControlPointsItem.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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// .NAME vtkPiecewiseControlPointsItem - Control points for
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// vtkPiecewiseFunction.
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// .SECTION Description
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// vtkPiecewiseControlPointsItem draws the control points of a vtkPiecewiseFunction.
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// .SECTION See Also
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// vtkControlPointsItem
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// vtkPiecewiseFunctionItem
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// vtkCompositeTransferFunctionItem
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#ifndef vtkPiecewiseControlPointsItem_h
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#define vtkPiecewiseControlPointsItem_h
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#include "vtkChartsCoreModule.h" // For export macro
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#include "vtkControlPointsItem.h"
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class vtkPiecewiseFunction;
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class VTKCHARTSCORE_EXPORT vtkPiecewiseControlPointsItem: public vtkControlPointsItem
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{
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public:
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vtkTypeMacro(vtkPiecewiseControlPointsItem, vtkControlPointsItem);
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virtual void PrintSelf(ostream &os, vtkIndent indent);
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// Description:
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// Creates a piecewise control points object
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static vtkPiecewiseControlPointsItem* New();
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// Description:
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// Set the piecewise function to draw its points
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virtual void SetPiecewiseFunction(vtkPiecewiseFunction* function);
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// Description
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// Get the piecewise function
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vtkGetObjectMacro(PiecewiseFunction, vtkPiecewiseFunction);
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// Description:
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// Add a point to the function. Returns the index of the point (0 based),
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// or -1 on error.
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// Subclasses should reimplement this function to do the actual work.
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virtual vtkIdType AddPoint(double* newPos);
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// Description:
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// Remove a point of the function. Returns the index of the point (0 based),
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// or -1 on error.
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// Subclasses should reimplement this function to do the actual work.
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virtual vtkIdType RemovePoint(double* pos);
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// Description:
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// Controls whether or not control points are drawn (true) or clicked and
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// moved (false).
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// False by default.
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vtkSetMacro(StrokeMode, bool);
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protected:
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vtkPiecewiseControlPointsItem();
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virtual ~vtkPiecewiseControlPointsItem();
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virtual void emitEvent(unsigned long event, void* params = 0);
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virtual unsigned long int GetControlPointsMTime();
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virtual vtkIdType GetNumberOfPoints()const;
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virtual void GetControlPoint(vtkIdType index, double *point)const;
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virtual void SetControlPoint(vtkIdType index, double *point);
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virtual void EditPoint(float tX, float tY);
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vtkPiecewiseFunction* PiecewiseFunction;
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private:
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vtkPiecewiseControlPointsItem(const vtkPiecewiseControlPointsItem &); // Not implemented.
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void operator=(const vtkPiecewiseControlPointsItem &); // Not implemented.
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};
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#endif
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