vtkOpenGL2ContextDevice2D Class Reference
#include <vtkOpenGL2ContextDevice2D.h>
Detailed Description
Class for drawing 2D primitives using OpenGL 2.This class takes care of drawing the 2D primitives for the vtkContext2D class. In general this class should not be used directly, but called by vtkContext2D which takes care of many of the higher level details.
It assumes that OpenGL 2 is available, which is taken care of by the vtkContextActor class. If OpenGL 2 is not available, but OpenGL rendering is required the vtkOpenGLContextDevice2D class should be used (employs GL 1.1).
- See also:
- vtkOpenGLContextDevice2D
Definition at line 41 of file vtkOpenGL2ContextDevice2D.h.
Public Types | |
| typedef vtkOpenGLContextDevice2D | Superclass |
Public Member Functions | |
| virtual const char * | GetClassName () |
| virtual int | IsA (const char *type) |
| virtual void | PrintSelf (ostream &os, vtkIndent indent) |
| virtual void | DrawImage (float p[2], float scale, vtkImageData *image) |
| void | DrawImage (const vtkRectf &pos, vtkImageData *image) |
| virtual void | ReleaseGraphicsResources (vtkWindow *window) |
| virtual void | DrawPointSprites (vtkImageData *sprite, float *points, int n, unsigned char *colors=0, int nc_comps=0) |
Static Public Member Functions | |
| static int | IsTypeOf (const char *type) |
| static vtkOpenGL2ContextDevice2D * | SafeDownCast (vtkObject *o) |
| static vtkOpenGL2ContextDevice2D * | New () |
| static bool | IsSupported (vtkViewport *viewport) |
Protected Member Functions | |
| vtkOpenGL2ContextDevice2D () | |
| virtual | ~vtkOpenGL2ContextDevice2D () |
| virtual bool | LoadExtensions (vtkOpenGLExtensionManager *m) |
Member Typedef Documentation
Reimplemented from vtkOpenGLContextDevice2D.
Definition at line 45 of file vtkOpenGL2ContextDevice2D.h.
Constructor & Destructor Documentation
| vtkOpenGL2ContextDevice2D::vtkOpenGL2ContextDevice2D | ( | ) | [protected] |
| virtual vtkOpenGL2ContextDevice2D::~vtkOpenGL2ContextDevice2D | ( | ) | [protected, virtual] |
Member Function Documentation
| virtual const char* vtkOpenGL2ContextDevice2D::GetClassName | ( | ) | [virtual] |
Reimplemented from vtkOpenGLContextDevice2D.
| static int vtkOpenGL2ContextDevice2D::IsTypeOf | ( | const char * | name | ) | [static] |
Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.
Reimplemented from vtkOpenGLContextDevice2D.
| virtual int vtkOpenGL2ContextDevice2D::IsA | ( | const char * | name | ) | [virtual] |
Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.
Reimplemented from vtkOpenGLContextDevice2D.
| static vtkOpenGL2ContextDevice2D* vtkOpenGL2ContextDevice2D::SafeDownCast | ( | vtkObject * | o | ) | [static] |
Reimplemented from vtkOpenGLContextDevice2D.
| virtual void vtkOpenGL2ContextDevice2D::PrintSelf | ( | ostream & | os, | |
| vtkIndent | indent | |||
| ) | [virtual] |
Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.
Reimplemented from vtkOpenGLContextDevice2D.
| static vtkOpenGL2ContextDevice2D* vtkOpenGL2ContextDevice2D::New | ( | ) | [static] |
Creates a 2D Painter object.
Reimplemented from vtkOpenGLContextDevice2D.
| static bool vtkOpenGL2ContextDevice2D::IsSupported | ( | vtkViewport * | viewport | ) | [static] |
Return true if the current rendering context supports this device.
| virtual void vtkOpenGL2ContextDevice2D::DrawPointSprites | ( | vtkImageData * | sprite, | |
| float * | points, | |||
| int | n, | |||
| unsigned char * | colors = 0, |
|||
| int | nc_comps = 0 | |||
| ) | [virtual] |
Draw a series of point sprites, images centred at the points supplied. The supplied vtkImageData is the sprite to be drawn, only squares will be drawn and the size is set using SetPointSize. Points are colored by colors array which has nc_comps components
Reimplemented from vtkOpenGLContextDevice2D.
| virtual void vtkOpenGL2ContextDevice2D::DrawImage | ( | float | p[2], | |
| float | scale, | |||
| vtkImageData * | image | |||
| ) | [virtual] |
Draw the supplied image at the given x, y (p[0], p[1]) (bottom corner), scaled by scale (1.0 would match the image).
Reimplemented from vtkOpenGLContextDevice2D.
| void vtkOpenGL2ContextDevice2D::DrawImage | ( | const vtkRectf & | pos, | |
| vtkImageData * | image | |||
| ) | [virtual] |
Draw the supplied image at the given position. The origin, width, and height are specified by the supplied vtkRectf variable pos. The image will be drawn scaled to that size.
Reimplemented from vtkOpenGLContextDevice2D.
| virtual void vtkOpenGL2ContextDevice2D::ReleaseGraphicsResources | ( | vtkWindow * | window | ) | [virtual] |
Release any graphics resources that are being consumed by this device. The parameter window could be used to determine which graphic resources to release.
Reimplemented from vtkOpenGLContextDevice2D.
| virtual bool vtkOpenGL2ContextDevice2D::LoadExtensions | ( | vtkOpenGLExtensionManager * | m | ) | [protected, virtual] |
Load the OpenGL extensions we need.
Reimplemented from vtkOpenGLContextDevice2D.
The documentation for this class was generated from the following file:
- dox/Charts/vtkOpenGL2ContextDevice2D.h
