Graphic option
border
Default value: true
true
If border is true, borders of polygons are painted according to line_type and line_width.
line_type
line_width
This option affects the following graphic objects:
gr2d: polygon, rectangle, and ellipse.
gr2d
polygon
rectangle
ellipse
Example:
(%i1) load(draw)$ (%i2) draw2d(color = brown, line_width = 8, polygon([[3,2],[7,2],[5,5]]), border = false, fill_color = blue, polygon([[5,2],[9,2],[7,5]]) )$