Hello, Does someone have metapost code to redefine PENA...PEND to draw grey instead of black?
Why I need this: My survey consists of 80% scanned bitmaps and 20% drawn scraps. The bitmaps are "grey", not black (can't make them better using image processing). The drawn scraps then stand out and look ugly compared to the bitmaps. I know how to redefine individual symbols (walls etc.) to be grey instead of black, but rather than redefining a large symbol set I'd rather redefine the PENs - if possible. Regards, Michael.
