Hashed Polygons
Posted: 2012-04-19T09:44:18-07:00
List,
I would like to draw a polygon on top of an image...but, instead of filling the polygon with a color...I would like to have the area "hatched" or a series of parallel dashed lines.
The second, third, and fourth images found here: http://www.spc.noaa.gov/products/outloo ... _1300.html
explain what I am trying to do.
I can draw the color filled polygons...but how would I go about doing "hatched" areas using a command-line tool such as convert in ImageMagick?
Thanks,
Matthew
I would like to draw a polygon on top of an image...but, instead of filling the polygon with a color...I would like to have the area "hatched" or a series of parallel dashed lines.
The second, third, and fourth images found here: http://www.spc.noaa.gov/products/outloo ... _1300.html
explain what I am trying to do.
I can draw the color filled polygons...but how would I go about doing "hatched" areas using a command-line tool such as convert in ImageMagick?
Thanks,
Matthew