I am a big fan of your work and I really hope that you guys will keep up the good work. I think we are very close in reaching the point where gdl will become equivalent to idl. I have today made some publication quality plots with gdl. However, the contour function lacks much. Specially without the cell_fill you can not correctly draw the projected data. Moreover, triangulate function is also missing making it impossible to draw irregular grids. Anyhow I will be obliged if you consider adding these two keywords are added to contour plot routine. Not that important but /closed would also be a good addition if possible.
There are also some small stuff missing in the device. For example, isolatin1 is not supported, font_size is not supported.
Thanking in advance for your help and time.