Wookey wrote:

I'm drawing a cave with large areas of calcite in it. Some way of drawing these areas is needed. Ideally such areas should have some kind of 'direction' or 'contour' info as they are not uniform.

Any ideas how we might best implement that?

We have been already thinking of this. Could you please draw(scan) such a symbol to see, what can we do about it? Regards, S.