1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkTextActor3D.h,v $
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkTextActor3D - An actor that displays text.
// .SECTION Description
// The input text is rendered into a buffer, which in turn is used as a
// texture applied onto a quad (a vtkImageActor is used under the hood).
// .SECTION Warning
// This class is experimental at the moment.
// - The orientation is not optimized, the quad should be oriented, not
// the text itself when it is rendered in the buffer (we end up with
// excessively big textures for 45 degrees angles).
// This will be fixed first.
// - No checking is done at the moment regarding hardware texture size limits.
// - Alignment is not supported (soon).
// - Multiline is not supported.
// - Need to fix angle out of 0<->360
//
// .SECTION See Also
// vtkProp3D
#ifndef __vtkTextActor3D_h
#define __vtkTextActor3D_h
#include "vtkProp3D.h"
class vtkImageActor;
class vtkImageData;
class vtkTextProperty;
class VTK_RENDERING_EXPORT vtkTextActor3D : public vtkProp3D
{
public:
static vtkTextActor3D *New();
vtkTypeRevisionMacro(vtkTextActor3D,vtkProp3D);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Set the text string to be displayed.
vtkSetStringMacro(Input);
vtkGetStringMacro(Input);
// Description:
// Set/Get the text property.
virtual void SetTextProperty(vtkTextProperty *p);
vtkGetObjectMacro(TextProperty,vtkTextProperty);
// Description:
// Shallow copy of this text actor. Overloads the virtual
// vtkProp method.
void ShallowCopy(vtkProp *prop);
// Description:
// Get the bounds for this Prop3D as (Xmin,Xmax,Ymin,Ymax,Zmin,Zmax).
virtual double *GetBounds();
//BTX
// Description:
// WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE
// DO NOT USE THIS METHOD OUTSIDE OF THE RENDERING PROCESS.
// Release any graphics resources that are being consumed by this actor.
// The parameter window could be used to determine which graphic
// resources to release.
virtual void ReleaseGraphicsResources(vtkWindow *);
// Description:
// WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE
// DO NOT USE THIS METHOD OUTSIDE OF THE RENDERING PROCESS.
// Draw the text actor to the screen.
int RenderOpaqueGeometry(vtkViewport* viewport);
int RenderTranslucentGeometry(vtkViewport* viewport);
int RenderOverlay(vtkViewport* viewport);
//ETX
protected:
vtkTextActor3D();
~vtkTextActor3D();
char *Input;
vtkImageActor *ImageActor;
vtkImageData *ImageData;
vtkTextProperty *TextProperty;
vtkTimeStamp BuildTime;
virtual int UpdateImageActor();
private:
vtkTextActor3D(const vtkTextActor3D&); // Not implemented.
void operator=(const vtkTextActor3D&); // Not implemented.
};
#endif
|
