Add option to show Cartesian coordinate grid

[kovzol]

This would be very helpful when explaining the basics for students.
An example how it could be done can be found at http://rtzme.sourceforge.net/english.php.

[prafulla-kr]

How can I approach this issue.

[kovzol]

First try to download RTZME and compile it. It requires some additional packages like formconv that requires ANTLR.

[prafulla-kr]

It doesn't get installed on ubuntu.

[kovzol]

It is quite complicated to compile rtzme on a recent Ubuntu. You can either use an old Ubuntu version or fix the current sources of rtzme (because it requires wx-2.8). See also timhutton/slinker@3099e95 to get support for wx-3.0.

formconv is available at https://github.com/kovzol/formconv and rtzme can be checked out by using the command line cvs -z3 -d:pserver:[email protected]:/cvsroot/rtzme co -P rtzme. In addition, rtzme must be compiled with the option -DBROKEN_GCC. There is still some problem on the startup and rendering the formulas but the grid can be checked.

Anyway, I attach a video on how the grid looks like.