VTK  9.3.20240412
vtkCellCentersPointPlacer.h
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1 // SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2 // SPDX-License-Identifier: BSD-3-Clause
29 #ifndef vtkCellCentersPointPlacer_h
30 #define vtkCellCentersPointPlacer_h
31 
32 #include "vtkInteractionWidgetsModule.h" // For export macro
33 #include "vtkPointPlacer.h"
34 
35 VTK_ABI_NAMESPACE_BEGIN
36 class vtkRenderer;
37 class vtkPropCollection;
38 class vtkProp;
39 class vtkCellPicker;
40 
41 class VTKINTERACTIONWIDGETS_EXPORT vtkCellCentersPointPlacer : public vtkPointPlacer
42 {
43 public:
48 
50 
54  void PrintSelf(ostream& os, vtkIndent indent) override;
56 
57  // Description:
58  // Add an actor (that represents a terrain in a rendered scene) to the
59  // list. Only props in this list are considered by the PointPlacer
60  virtual void AddProp(vtkProp*);
61  virtual void RemoveViewProp(vtkProp* prop);
62  virtual void RemoveAllProps();
65 
75  vtkRenderer* ren, double displayPos[2], double worldPos[3], double worldOrient[9]) override;
76 
83  int ComputeWorldPosition(vtkRenderer* ren, double displayPos[2], double refWorldPos[3],
84  double worldPos[3], double worldOrient[9]) override;
85 
90  int ValidateWorldPosition(double worldPos[3]) override;
91 
95  int ValidateDisplayPosition(vtkRenderer*, double displayPos[2]) override;
96 
101  int ValidateWorldPosition(double worldPos[3], double worldOrient[9]) override;
102 
104 
107  vtkGetObjectMacro(CellPicker, vtkCellPicker);
109 
111 
117  vtkSetMacro(Mode, int);
118  vtkGetMacro(Mode, int);
120 
121  enum
122  {
123  ParametricCenter = 0,
125  None
126  };
127 
128 protected:
131 
132  // The props that represents the terrain data (one or more) in a rendered
133  // scene
136  int Mode;
137 
138 private:
140  void operator=(const vtkCellCentersPointPlacer&) = delete;
141 };
142 
143 VTK_ABI_NAMESPACE_END
144 #endif
Snaps points at the center of a cell.
int ComputeWorldPosition(vtkRenderer *ren, double displayPos[2], double refWorldPos[3], double worldPos[3], double worldOrient[9]) override
Given a renderer, a display position, and a reference world position, compute the new world position ...
int ValidateWorldPosition(double worldPos[3], double worldOrient[9]) override
Given a world position and a world orientation, validate it according to the constraints of the place...
vtkTypeBool HasProp(vtkProp *)
virtual void RemoveViewProp(vtkProp *prop)
static vtkCellCentersPointPlacer * New()
Instantiate this class.
virtual void RemoveAllProps()
int ValidateDisplayPosition(vtkRenderer *, double displayPos[2]) override
Given a display position, check the validity of this position.
virtual void AddProp(vtkProp *)
int ValidateWorldPosition(double worldPos[3]) override
Given a world position check the validity of this position according to the constraints of the placer...
void PrintSelf(ostream &os, vtkIndent indent) override
Standard methods for instances of this class.
int ComputeWorldPosition(vtkRenderer *ren, double displayPos[2], double worldPos[3], double worldOrient[9]) override
Given a renderer and a display position in pixel coordinates, compute the world position and orientat...
~vtkCellCentersPointPlacer() override
ray-cast cell picker for all kinds of Prop3Ds
Definition: vtkCellPicker.h:91
a simple class to control print indentation
Definition: vtkIndent.h:108
Abstract interface to translate 2D display positions to world coordinates.
an ordered list of Props
abstract superclass for all actors, volumes and annotations
Definition: vtkProp.h:66
abstract specification for renderers
Definition: vtkRenderer.h:172
int vtkTypeBool
Definition: vtkABI.h:64