XGL Viewer
This is a viewer for XGL files. I specifically wrote this to display and animate a model of the Circuitrunners 2005 FIRST robot's base. The model was created in Autodesk Inventor and exported as a ZGL files (which is XGL compressed with gzip). This program reads the uncompressed XGL file.
This program has some hard-coded information about the XGL file:
- ID's of objects to animate
- Extents and position of the model
- Filename to load
It would be easy to modify this program to work with other files, but at the time I didn't consider it important enough to make this program properly generic.
Keys:
| Key | Description |
|---|---|
| ESC | Exit the program |
| 1 | Toggle rotation animation |
| 2 | Toggle expansion animation |
| 3 | Toggle wireframe/solid fade animation |
| 4 | Toggle using light map as specified in the XGL file |
| 9 | Reset the wireframe/solid fade |
| 0 | Reset all parameters |
Moving the mouse rotates the model.
The robot really did do the expansion thing, but not as well as the animation suggests.
Unless you have a really good computer, this program will take a few seconds to load and will have a poor frame rate. The model is excessively detailed and includes every tooth on every gear - this is what we built from.
split.c is a program to split a file into lines of reasonable length, since the XGL produced by Inventor is all on one line and this makes it hard to edit/view.
This program depends on libxml2. The Makefile provided is ready to use for Linux and has build flags for Mac OS X. The program can be built on Windows but I don't have project files for this.