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102 lines
2.9 KiB
C
102 lines
2.9 KiB
C
3 weeks ago
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/*=========================================================================
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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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/**
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* @class vtkPiecewiseControlPointsItem
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* @brief Control points for
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* vtkPiecewiseFunction.
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*
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* vtkPiecewiseControlPointsItem draws the control points of a vtkPiecewiseFunction.
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* @sa
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* vtkControlPointsItem
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* vtkPiecewiseFunctionItem
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* vtkCompositeTransferFunctionItem
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*/
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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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void PrintSelf(ostream& os, vtkIndent indent) override;
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/**
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* Creates a piecewise control points object
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*/
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static vtkPiecewiseControlPointsItem* New();
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/**
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* Set the piecewise function to draw its points
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*/
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virtual void SetPiecewiseFunction(vtkPiecewiseFunction* function);
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//@{
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/**
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* Get the piecewise function
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*/
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vtkGetObjectMacro(PiecewiseFunction, vtkPiecewiseFunction);
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//@}
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/**
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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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*/
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vtkIdType AddPoint(double* newPos) override;
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/**
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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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*/
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vtkIdType RemovePoint(double* pos) override;
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//@{
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/**
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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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*/
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vtkSetMacro(StrokeMode, bool);
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//@}
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protected:
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vtkPiecewiseControlPointsItem();
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~vtkPiecewiseControlPointsItem() override;
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void emitEvent(unsigned long event, void* params = nullptr) override;
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vtkMTimeType GetControlPointsMTime() override;
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vtkIdType GetNumberOfPoints() const override;
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void GetControlPoint(vtkIdType index, double* point) const override;
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void SetControlPoint(vtkIdType index, double* point) override;
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void EditPoint(float tX, float tY) override;
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vtkPiecewiseFunction* PiecewiseFunction;
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private:
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vtkPiecewiseControlPointsItem(const vtkPiecewiseControlPointsItem&) = delete;
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void operator=(const vtkPiecewiseControlPointsItem&) = delete;
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};
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#endif
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