\page Exampleperspective Example perspective

examples/extended/visualization/perspective

This example is another example of using the Geant Visualization
System as a "stand-alone" graphics library and viewer.  See
[Example standalone](../../html_standalone/html/Examplestandalone.html)
for a simpler introductory explanation.

The particular feature of this example is the addition of "perspective
lines".  The direction of these lines is controlled by

```
/perspectiveDemo/optionString x
```

See vis.mac.

Notes:
- /perspectiveDemo/scene is not used at present.
- visXm.mac is specially for use with G4UIXm and OGL*Xm.

John Allison
11th June 2012