Examples

surfaceviewer.py demonstrates

• how to calculate a mathematical surface in view of data transfer to Coin3D.
• how to color the surface to indicate the values of a scalar field. In this case the scalar field is the angle theta indicating the direction in the x-y plane.
• how to use either numpy, numarray, or Numeric. The script times a few CPU intensive operations and writes the result to the status bar, so that you can compare the speed of the different Numerical Python extensions.
• how to get an idea of the speed of Coin3D and your graphics hardware. Start with a size of 17 by 17 and set the surface in perpetual motion by a mouse stroke over the window. Increase the size step by step and watch if the movement gets jumpy. On my hardware it takes Coin3D about 6 times less time to update the view than it takes numpy to calculate a new surface.

mainwindow.py demonstrates

• how to make a SoQtExaminerViewer a central widget in a subclass of QMainWindow.
• how to read Open Inventor files with PyQt and IVuPy.

viewer.py demonstrates

• how to hide the buttons and wheels around the render area of a SoQtExaminerViewer.
• how to reimplement processSoEvent() to customize event handling.
• how to use the offscreen renderer to save a scene to a bitmap or .(e)ps file.
• how to use the PostScript vectorize action to save a scene to an .(e)ps file.

scrollview.py demonstrates

• how to embed a SoQtRenderArea in a subclass of QScrollView.

tripleview.py demonstrates

• how to put three SoQtRenderAreas with different views of the same scene graph in a QWidget.
• how to use a SoTimerSensor with a callback function to rotate the scene graph.