VTK  9.3.1
vtkSplineRepresentation.h
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1 // SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2 // SPDX-License-Identifier: BSD-3-Clause
19 #ifndef vtkSplineRepresentation_h
20 #define vtkSplineRepresentation_h
21 
23 #include "vtkInteractionWidgetsModule.h" // For export macro
24 
25 VTK_ABI_NAMESPACE_BEGIN
27 
28 class VTKINTERACTIONWIDGETS_EXPORT vtkSplineRepresentation : public vtkAbstractSplineRepresentation
29 {
30 public:
31  static vtkSplineRepresentation* New();
33  void PrintSelf(ostream& os, vtkIndent indent) override;
34 
39  void SetNumberOfHandles(int npts) override;
40 
44  void SetParametricSpline(vtkParametricSpline* spline) override;
45 
52  void InitializeHandles(vtkPoints* points) override;
53 
60  void BuildRepresentation() override;
61 
62 protected:
64  ~vtkSplineRepresentation() override;
65 
69  int InsertHandleOnLine(double* pos) override;
70 
74  void ClearHandles();
75 
80  void AllocateHandles(int npts);
81 
85  void CreateDefaultHandles(int npts);
86 
93  void ReconfigureHandles(int npts);
94 
95  // Specialized methods to access handles
96  vtkActor* GetHandleActor(int index) override;
97  vtkHandleSource* GetHandleSource(int index) override;
98  int GetHandleIndex(vtkProp* prop) override;
99 
100 private:
102  void operator=(const vtkSplineRepresentation&) = delete;
103 
104  void RebuildRepresentation();
105 
106  // Glyphs representing hot spots (e.g., handles)
107  std::vector<vtkSmartPointer<vtkPointHandleSource>> PointHandles;
108  std::vector<vtkSmartPointer<vtkActor>> HandleActors;
109 };
110 
111 VTK_ABI_NAMESPACE_END
112 #endif
abstract superclass for all actors, volumes and annotations
Definition: vtkProp.h:45
representation for a spline.
represents an object (geometry & properties) in a rendered scene
Definition: vtkActor.h:40
virtual void InitializeHandles(vtkPoints *points)=0
Convenience method to allocate and set the handles from a vtkPoints instance.
abstract representation for a spline.
virtual void SetParametricSpline(vtkParametricSpline *spline)
Set the parametric spline object.
interface that can be inherited to define handler sources for any kind of interaction.
virtual int GetHandleIndex(vtkProp *prop)=0
returns handle index or -1 on fail
virtual void SetNumberOfHandles(int npts)=0
Set/Get the number of handles for this widget.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
virtual vtkHandleSource * GetHandleSource(int index)=0
parametric function for 1D interpolating splines
a simple class to control print indentation
Definition: vtkIndent.h:28
void BuildRepresentation() override=0
These are methods that satisfy vtkWidgetRepresentation API.
handle source used to represent points.
virtual vtkActor * GetHandleActor(int index)=0
virtual int InsertHandleOnLine(double *pos)=0
Returns the position of insertion or -1 on fail.
static vtkObject * New()
Create an object with Debug turned off, modified time initialized to zero, and reference counting on...
represent and manipulate 3D points
Definition: vtkPoints.h:28