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vtkFollower.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkFollower.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 =========================================================================*/
32 #ifndef vtkFollower_h
33 #define vtkFollower_h
34 
35 #include "vtkActor.h"
36 #include "vtkRenderingCoreModule.h" // For export macro
37 
38 class vtkCamera;
39 
40 class VTKRENDERINGCORE_EXPORT vtkFollower : public vtkActor
41 {
42 public:
43  vtkTypeMacro(vtkFollower, vtkActor);
44  void PrintSelf(ostream& os, vtkIndent indent) override;
45 
49  static vtkFollower* New();
50 
52 
56  virtual void SetCamera(vtkCamera*);
57  vtkGetObjectMacro(Camera, vtkCamera);
59 
61 
66  int RenderOpaqueGeometry(vtkViewport* viewport) override;
67  int RenderTranslucentPolygonalGeometry(vtkViewport* viewport) override;
68  virtual void Render(vtkRenderer* ren);
70 
75 
79  void ReleaseGraphicsResources(vtkWindow*) override;
80 
85  void ComputeMatrix() override;
86 
90  void ShallowCopy(vtkProp* prop) override;
91 
92 protected:
93  vtkFollower();
94  ~vtkFollower() override;
95 
98 
99  // Internal matrices to avoid New/Delete for performance reasons
101 
102 private:
103  vtkFollower(const vtkFollower&) = delete;
104  void operator=(const vtkFollower&) = delete;
105 
106  // hide the two parameter Render() method from the user and the compiler.
107  void Render(vtkRenderer*, vtkMapper*) override {}
108 };
109 
110 #endif
vtkActor::RenderOpaqueGeometry
int RenderOpaqueGeometry(vtkViewport *viewport) override
Support the standard render methods.
vtkFollower
a subclass of actor that always faces the camera
Definition: vtkFollower.h:40
vtkActor::ReleaseGraphicsResources
void ReleaseGraphicsResources(vtkWindow *) override
Release any graphics resources that are being consumed by this actor.
vtkActor::ShallowCopy
void ShallowCopy(vtkProp *prop) override
Shallow copy of an actor.
vtkWindow
window superclass for vtkRenderWindow
Definition: vtkWindow.h:34
vtkFollower::Device
vtkActor * Device
Definition: vtkFollower.h:97
vtkFollower::InternalMatrix
vtkMatrix4x4 * InternalMatrix
Definition: vtkFollower.h:100
vtkFollower::Camera
vtkCamera * Camera
Definition: vtkFollower.h:96
vtkActor::PrintSelf
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
vtkActor::New
static vtkActor * New()
Creates an actor with the following defaults: origin(0,0,0) position=(0,0,0) scale=(1,...
vtkMapper
abstract class specifies interface to map data to graphics primitives
Definition: vtkMapper.h:80
vtkActor
represents an object (geometry & properties) in a rendered scene
Definition: vtkActor.h:45
vtkActor::RenderTranslucentPolygonalGeometry
int RenderTranslucentPolygonalGeometry(vtkViewport *viewport) override
vtkIndent
a simple class to control print indentation
Definition: vtkIndent.h:33
vtkMatrix4x4
represent and manipulate 4x4 transformation matrices
Definition: vtkMatrix4x4.h:35
vtkCamera
a virtual camera for 3D rendering
Definition: vtkCamera.h:45
vtkActor.h
vtkProp3D::ComputeMatrix
virtual void ComputeMatrix()
Generate the matrix based on ivars.
vtkViewport
abstract specification for Viewports
Definition: vtkViewport.h:44
vtkActor::HasTranslucentPolygonalGeometry
vtkTypeBool HasTranslucentPolygonalGeometry() override
Does this prop have some opaque/translucent polygonal geometry?
vtkProp
abstract superclass for all actors, volumes and annotations
Definition: vtkProp.h:47
vtkRenderer
abstract specification for renderers
Definition: vtkRenderer.h:58
vtkTypeBool
int vtkTypeBool
Definition: vtkABI.h:69
vtkActor::Render
virtual void Render(vtkRenderer *, vtkMapper *)
This causes the actor to be rendered.
Definition: vtkActor.h:87