You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
139 lines
3.9 KiB
C++
139 lines
3.9 KiB
C++
/*=========================================================================
|
|
|
|
Program: Visualization Toolkit
|
|
Module: vtkTextActor3D.h
|
|
|
|
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.
|
|
|
|
=========================================================================*/
|
|
/**
|
|
* @class vtkTextActor3D
|
|
* @brief An actor that displays text.
|
|
*
|
|
* 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).
|
|
* @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.
|
|
*
|
|
* @sa
|
|
* vtkProp3D
|
|
*/
|
|
|
|
#ifndef vtkTextActor3D_h
|
|
#define vtkTextActor3D_h
|
|
|
|
#include "vtkRenderingCoreModule.h" // For export macro
|
|
#include "vtkProp3D.h"
|
|
|
|
class vtkImageActor;
|
|
class vtkImageData;
|
|
class vtkTextProperty;
|
|
|
|
class VTKRENDERINGCORE_EXPORT vtkTextActor3D : public vtkProp3D
|
|
{
|
|
public:
|
|
static vtkTextActor3D *New();
|
|
vtkTypeMacro(vtkTextActor3D,vtkProp3D);
|
|
void PrintSelf(ostream& os, vtkIndent indent);
|
|
|
|
//@{
|
|
/**
|
|
* Set the text string to be displayed.
|
|
*/
|
|
vtkSetStringMacro(Input);
|
|
vtkGetStringMacro(Input);
|
|
//@}
|
|
|
|
//@{
|
|
/**
|
|
* Set/Get the text property.
|
|
*/
|
|
virtual void SetTextProperty(vtkTextProperty *p);
|
|
vtkGetObjectMacro(TextProperty,vtkTextProperty);
|
|
//@}
|
|
|
|
/**
|
|
* Since a 3D text actor is not pixel-aligned and positioned in 3D space,
|
|
* the text is rendered at a constant DPI, rather than using the current
|
|
* window DPI. This static method returns the DPI value used to produce the
|
|
* text images.
|
|
*/
|
|
static int GetRenderedDPI() { return 72; }
|
|
|
|
/**
|
|
* Shallow copy of this text actor. Overloads the virtual
|
|
* vtkProp method.
|
|
*/
|
|
void ShallowCopy(vtkProp *prop);
|
|
|
|
/**
|
|
* Get the bounds for this Prop3D as (Xmin,Xmax,Ymin,Ymax,Zmin,Zmax).
|
|
*/
|
|
virtual double *GetBounds();
|
|
void GetBounds(double bounds[6]) {this->vtkProp3D::GetBounds( bounds );}
|
|
|
|
/**
|
|
* Get the vtkTextRenderer-derived bounding box for the given vtkTextProperty
|
|
* and text string str. Results are returned in the four element bbox int
|
|
* array. This call can be used for sizing other elements.
|
|
*/
|
|
int GetBoundingBox(int bbox[4]);
|
|
|
|
/**
|
|
* 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 *);
|
|
|
|
//@{
|
|
/**
|
|
* 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);
|
|
virtual int RenderTranslucentPolygonalGeometry(vtkViewport* viewport);
|
|
int RenderOverlay(vtkViewport* viewport);
|
|
//@}
|
|
|
|
/**
|
|
* Does this prop have some translucent polygonal geometry?
|
|
*/
|
|
virtual int HasTranslucentPolygonalGeometry();
|
|
|
|
protected:
|
|
vtkTextActor3D();
|
|
~vtkTextActor3D();
|
|
|
|
char *Input;
|
|
|
|
vtkImageActor *ImageActor;
|
|
vtkImageData *ImageData;
|
|
vtkTextProperty *TextProperty;
|
|
|
|
vtkTimeStamp BuildTime;
|
|
|
|
virtual int UpdateImageActor();
|
|
|
|
private:
|
|
vtkTextActor3D(const vtkTextActor3D&) VTK_DELETE_FUNCTION;
|
|
void operator=(const vtkTextActor3D&) VTK_DELETE_FUNCTION;
|
|
};
|
|
|
|
|
|
#endif
|