stefanloerwald/panda

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panda's Issues

Rational maps

Is there any support for symmetry maps being rational combinations of the input variables? Typically something like: Names x y Maps x/2+y/2 x/2-y/2? This currently gives the following error: Exception caught: The error In "x/2+y/2" of a map, the token "x/2" is not a variable. occured in map #1.

From this error message I suspect the answer to my initial question is negative. In my actual example, the denominator is the same for the entire map and the vertices coordinates remain integers in the process. How hard would you then estimate the implementation to be and, if it looks reasonable, where shall I start?