Controls: Move
mouse with left button or A key pressed to rotate.
Move
mouse with middle button or S key pressed to zoom.
The slider
Portion shown controls how much of the surface is drawn, allowing the user to better appreciate the ends. If the box
Show periodicity is unchecked, only a fundamental piece of the surface is shown. The checkboxes
Show mesh and
Show smooth surface are self-explanatory: by default, both are checked. The button
Change background cyclically changes the background among a few choices. The default background is flat, but less demanding in terms of graphics resources...
Webgl applet built with the library three.js (released under the MIT license). This applet is (C) 2012, Sisto Baldo and is released under GPL.