does grid.rect() not accept NULL argument from gpar(col=NULL) ?
Hi
Mark Heckmann wrote:
I want to draw a grid rectangle without a border. ?gpar says: "Specifying the value NULL for a parameter is the same as not specifying any value for that parameter, except for col and fill, where NULL indicates not to draw a border or not to fill an area (respectively)." pushViewport(viewport(height=unit(.8, "npc"))) grid.rect(gp=gpar(col=NULL, fill="green")) popViewport() Still a border is drawn. What am I doing wrong?
Your mistake was to assume that the documentation is correct! :) That behaviour is actually WAY out of date. You can do what you want using NA ... pushViewport(viewport(height=unit(.8, "npc"))) grid.rect(gp=gpar(col=NA, fill="green")) popViewport() Thanks for reporting the problem (the docs are now fixed). Paul
TIA, Mark
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