VTK  9.2.6
vtkCompositeControlPointsItem.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkCompositeControlPointsItem.h
5 
6  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7  All rights reserved.
8  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9 
10  This software is distributed WITHOUT ANY WARRANTY; without even
11  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12  PURPOSE. See the above copyright notice for more information.
13 
14 =========================================================================*/
15 
33 #ifndef vtkCompositeControlPointsItem_h
34 #define vtkCompositeControlPointsItem_h
35 
36 #include "vtkChartsCoreModule.h" // For export macro
38 
41 
43 {
44 public:
46  void PrintSelf(ostream& os, vtkIndent indent) override;
47 
52 
56  virtual void SetColorTransferFunction(vtkColorTransferFunction* function);
57 
59 
62  void SetOpacityFunction(vtkPiecewiseFunction* opacity);
63  vtkGetObjectMacro(OpacityFunction, vtkPiecewiseFunction);
65 
67  {
68  ColorPointsFunction = 1,
69  OpacityPointsFunction = 2,
70  ColorAndOpacityPointsFunction = 3
71  };
72 
74 
86  vtkSetMacro(PointsFunction, int);
87  vtkGetMacro(PointsFunction, int);
89 
95  vtkIdType AddPoint(double* newPos) override;
96 
103  vtkIdType RemovePoint(double* pos) override;
104 
106 
113  vtkSetMacro(UseOpacityPointHandles, bool);
114  vtkGetMacro(UseOpacityPointHandles, bool);
116 
118 
121  bool MouseMoveEvent(const vtkContextMouseEvent& mouse) override;
122  bool MouseDoubleClickEvent(const vtkContextMouseEvent& mouse) override;
123  bool MouseButtonPressEvent(const vtkContextMouseEvent& mouse) override;
125 
131  vtkIdType GetNumberOfPoints() const override;
132 
139  void GetControlPoint(vtkIdType index, double point[4]) const override;
140 
147  void SetControlPoint(vtkIdType index, double* point) override;
148 
149 protected:
151  ~vtkCompositeControlPointsItem() override;
152 
153  void emitEvent(unsigned long event, void* params) override;
154 
156 
157  void DrawPoint(vtkContext2D* painter, vtkIdType index) override;
158  void EditPoint(float tX, float tY) override;
159  virtual void EditPointCurve(vtkIdType idx);
160 
161  void MergeTransferFunctions();
162  void SilentMergeTransferFunctions();
163 
165  vtkPiecewiseFunction* OpacityFunction = nullptr;
166  vtkPiecewisePointHandleItem* OpacityPointHandle = nullptr;
167  bool UseOpacityPointHandles = false;
168 
169 private:
171  void operator=(const vtkCompositeControlPointsItem&) = delete;
172 };
173 
174 #endif
static vtkColorTransferControlPointsItem * New()
Creates a piecewise control points object.
bool MouseButtonPressEvent(const vtkContextMouseEvent &mouse) override
Mouse and key events.
Defines a 1D piecewise function.
vtkTypeUInt32 vtkMTimeType
Definition: vtkType.h:287
int vtkIdType
Definition: vtkType.h:332
vtkMTimeType GetControlPointsMTime() override
Must be reimplemented by subclasses to calculate the points to draw.
void GetControlPoint(vtkIdType index, double *point) const override
Returns the x and y coordinates as well as the midpoint and sharpness of the control point correspond...
Class for drawing 2D primitives to a graphical context.
Definition: vtkContext2D.h:57
a vtkContextItem that draws handles around a point of a piecewise function
vtkIdType GetNumberOfPoints() const override
Return the number of points in the color transfer function.
bool MouseDoubleClickEvent(const vtkContextMouseEvent &mouse) override
Mouse and key events.
data structure to represent mouse events.
a simple class to control print indentation
Definition: vtkIndent.h:39
Control points for vtkCompositeFunction.
vtkIdType AddPoint(double *newPos) override
Add a point to the function.
void EditPoint(float tX, float tY) override
vtkIdType RemovePoint(double *pos) override
Remove a point of the function.
Control points for vtkColorTransferFunction.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
void SetColorTransferFunction(vtkColorTransferFunction *function)
Set the piecewise function to draw its points.
virtual vtkIdType RemovePoint(double *pos)=0
Remove a point of the function.
Defines a transfer function for mapping a property to an RGB color value.
bool MouseMoveEvent(const vtkContextMouseEvent &mouse) override
Mouse and key events.
void SetControlPoint(vtkIdType index, double *point) override
Sets the x and y coordinates as well as the midpoint and sharpness of the control point corresponding...
void emitEvent(unsigned long event, void *params) override
void DrawPoint(vtkContext2D *painter, vtkIdType index) override
Internal function that paints a collection of points and optionally excludes some.