VTK  9.1.0
vtkPolyLineRepresentation.h
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1/*=========================================================================
2
3 Program: Visualization Toolkit
4 Module: vtkPolyLineRepresentation.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=========================================================================*/
29#ifndef vtkPolyLineRepresentation_h
30#define vtkPolyLineRepresentation_h
31
33#include "vtkInteractionWidgetsModule.h" // For export macro
34
37
38class VTKINTERACTIONWIDGETS_EXPORT vtkPolyLineRepresentation : public vtkCurveRepresentation
39{
40public:
43 void PrintSelf(ostream& os, vtkIndent indent) override;
44
53 void GetPolyData(vtkPolyData* pd) override;
54
58 void SetNumberOfHandles(int npts) override;
59
64
69 double GetSummedLength() override;
70
77 void InitializeHandles(vtkPoints* points) override;
78
82 void BuildRepresentation() override;
83
84protected:
87
88 // The poly line source
90
94 int InsertHandleOnLine(double* pos) override;
95
100
105 void AllocateHandles(int npts);
106
110 void CreateDefaultHandles(int npts);
111
118 void ReconfigureHandles(int npts);
119
120 // Specialized methods to access handles
121 vtkActor* GetHandleActor(int index) override;
122 vtkHandleSource* GetHandleSource(int index) override;
123 virtual int GetHandleIndex(vtkProp* prop) override;
124
125private:
127 void operator=(const vtkPolyLineRepresentation&) = delete;
128
129 // Glyphs representing hot spots (e.g., handles)
130 std::vector<vtkSmartPointer<vtkPointHandleSource>> PointHandles;
131 std::vector<vtkSmartPointer<vtkActor>> HandleActors;
132};
133
134#endif
represents an object (geometry & properties) in a rendered scene
Definition: vtkActor.h:155
vtkWidgetRepresentation base class for a widget that represents an curve that connects control points...
dynamic, self-adjusting array of double
interface that can be inherited to define handler sources for any kind of interaction.
a simple class to control print indentation
Definition: vtkIndent.h:113
Allocate and hold a VTK object.
Definition: vtkNew.h:165
handle source used to represent points.
represent and manipulate 3D points
Definition: vtkPoints.h:143
concrete dataset represents vertices, lines, polygons, and triangle strips
Definition: vtkPolyData.h:195
vtkWidgetRepresentation for a poly line.
vtkHandleSource * GetHandleSource(int index) override
virtual int GetHandleIndex(vtkProp *prop) override
returns handle index or -1 on fail
void BuildRepresentation() override
Build the representation for the poly line.
void GetPolyData(vtkPolyData *pd) override
Grab the polydata (including points) that defines the poly line.
static vtkPolyLineRepresentation * New()
void SetNumberOfHandles(int npts) override
Set the number of handles for this widget.
void AllocateHandles(int npts)
Allocate/Reallocate the handles according to npts.
void CreateDefaultHandles(int npts)
Create npts default handles.
double GetSummedLength() override
Get the true length of the poly line.
vtkNew< vtkPolyLineSource > PolyLineSource
vtkDoubleArray * GetHandlePositions() override
Get the positions of the handles.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
void ReconfigureHandles(int npts)
Recreate the handles according to a number of points equal to npts.
~vtkPolyLineRepresentation() override
void InitializeHandles(vtkPoints *points) override
Convenience method to allocate and set the handles from a vtkPoints instance.
vtkActor * GetHandleActor(int index) override
void ClearHandles()
Delete all the handles.
int InsertHandleOnLine(double *pos) override
Specialized method to insert a handle on the poly line.
create a poly line from a list of input points
abstract superclass for all actors, volumes and annotations
Definition: vtkProp.h:76