Difference between revisions of "VTK/Examples/Cxx/GLUT"
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By using this method, VTK do not create the rendering container nor the OpenGL context so a vtkRenderWindow and thus VTK can be easily embedded in an existing graphical application. | By using this method, VTK do not create the rendering container nor the OpenGL context so a vtkRenderWindow and thus VTK can be easily embedded in an existing graphical application. | ||
| − | == | + | ==vtkglut.cxx== |
<source lang="cpp"> | <source lang="cpp"> | ||
| Line 68: | Line 68: | ||
return 0; | return 0; | ||
} | } | ||
| + | </source> | ||
| + | |||
| + | ==XGMLReader.cxx== | ||
| + | <source lang="cmake"> | ||
| + | project(VtkGlut CXX) | ||
| + | cmake_minimum_required(VERSION 2.8) | ||
| + | |||
| + | find_package(VTK REQUIRED) | ||
| + | find_package(GLUT REQUIRED) | ||
| + | |||
| + | include(${VTK_USE_FILE}) | ||
| + | |||
| + | file(GLOB srcs *.cxx) | ||
| + | |||
| + | include_directories(${PROJECT_SOURCE_DIR}) | ||
| + | include_directories(${GLUT_INCLUDE_DIR}) | ||
| + | |||
| + | add_executable(${PROJECT_NAME} ${srcs}) | ||
| + | |||
| + | target_link_libraries(${PROJECT_NAME} ${VTK_LIBRARIES} ${GLUT_LIBRARIES}) | ||
</source> | </source> | ||
Revision as of 04:48, 21 November 2012
This page shows an example of how to use the new method vtkRenderWindow::InitializeFromCurrentContext() to associate a vtkRenderWindow instance to an existing window and activated OpenGL context. By using this method, VTK do not create the rendering container nor the OpenGL context so a vtkRenderWindow and thus VTK can be easily embedded in an existing graphical application.
vtkglut.cxx
#include <gl/glut.h>
#include "vtkConeSource.h"
#include "vtkPolyDataMapper.h"
#include "vtkRenderWindow.h"
#include "vtkCamera.h"
#include "vtkActor.h"
#include "vtkRenderer.h"
vtkRenderer *ren = NULL;
vtkRenderWindow *renWin = NULL;
void Reshape(int width, int height)
{
renWin->SetSize(width, height);
}
void Draw()
{
renWin->Render();
ren->GetActiveCamera()->Azimuth( 1 );
glutPostRedisplay();
}
int main( int argc, char **argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_DEPTH);
glutInitWindowSize(640,480);
glutCreateWindow("VTK-GLUT test");
vtkConeSource *cone = vtkConeSource::New();
cone->SetHeight( 3.0 );
cone->SetRadius( 1.0 );
cone->SetResolution( 10 );
vtkPolyDataMapper *coneMapper = vtkPolyDataMapper::New();
coneMapper->SetInputConnection( cone->GetOutputPort() );
vtkActor *coneActor = vtkActor::New();
coneActor->SetMapper( coneMapper );
ren = vtkRenderer::New();
ren->AddActor( coneActor );
ren->SetBackground( 0.1, 0.2, 0.4 );
renWin = vtkRenderWindow::New();
renWin->InitializeFromCurrentContext(); // associate the RenderWindow with the current OpenGL context
renWin->AddRenderer( ren );
renWin->SetSize( 300, 300 );
glutReshapeFunc(Reshape);
glutDisplayFunc(Draw);
glutMainLoop();
cone->Delete();
coneMapper->Delete();
coneActor->Delete();
ren->Delete();
renWin->Delete();
return 0;
}
XGMLReader.cxx
project(VtkGlut CXX)
cmake_minimum_required(VERSION 2.8)
find_package(VTK REQUIRED)
find_package(GLUT REQUIRED)
include(${VTK_USE_FILE})
file(GLOB srcs *.cxx)
include_directories(${PROJECT_SOURCE_DIR})
include_directories(${GLUT_INCLUDE_DIR})
add_executable(${PROJECT_NAME} ${srcs})
target_link_libraries(${PROJECT_NAME} ${VTK_LIBRARIES} ${GLUT_LIBRARIES})
