openSW

No file at hand? Open an example:

Click: select a face and read its name. Middle button: rotate · Ctrl+middle: pan · Shift+middle or wheel: zoom · Alt+middle: roll · middle double-click or F: zoom to fit · arrows: 15°, Shift: 90°.
Click a line to read its name. Drag: pan · wheel: zoom.
File properties What the file says about itself, read as is: nothing is computed.
Log
The log will appear here.