Whothm
Until recently, there was a Java Applet on this page.
However, support for Java Applets is rapidly disappearing from browsers.
So, in order to keep this software available, it has been re-packaged as
a Java Web Start application.
Simply click the link below to launch this software.
(You may need to install the Java Runtime Environment (JRE) 1.8 on your device first.)
Launch
If you have the JRE 1.8 installed but you have trouble getting Java Web Start to work,
you can manually download the jarfile and run the following
command in a terminal to start it:
java -jar whothm.jar
Whothm
Main article: Whothm
Whothm is a simple language for describing infinite two-colour bitmapped graphics.
This installation contains a Java application which implements Whothm, and lets you
interactively try out Whothm programs online, using Java Web Start. The implementation
is only an approximation; only a small portion of the infinite drawing (a couple of
hundred iterations) is rendered. The rest is left up to your imagination.
Instructions:
Whothm is a simple language for describing infinite shapes. It is
described fully in the documentation in the Whothm distribution.
Click "Run" or press Alt+R to run the program. The result is displayed in
the canvas on the right. Page Up and Page Down can be used to zoom in and
out of the canvas.
Syntax errors often result in an error message in the status bar,
but might not in all cases. In these cases, consulting your browser's
Java console, if it has one, might elucidate the cause of the error.
Or it might not.
Obviously, this implementation does not support generating or
displaying the entire infinite drawing. In fact, it only runs the loop
for a couple of hundred iterations. The full shape is left up to your
imagination.