Re: GMT4: How to make page background transparent?

"J.J. Green" <[email protected]>
Newsgroups gmane.comp.gis.gmt.user
Message-ID <[email protected]>
Hi John,

> I want to print this map on a t-shirt and don't want any color outside
> of the map frame and scale.
>
> In the attempts that I've made so far, I found that Brent's suggestion
> of putting the '---' code into the foreground color produces a *.ps file
> that does what I want when I view it with the Imagemagick viewer.

Hmmm, imagemagick is just a front-end to ghostscript and suboptimal for
GMT output, try using ps2raster (which is also a ghostcript front-end,
but optimal :-)) with the -TG option. Then you get a png with
transparency (of "untouched regions"), print that on your shirt.

If your printer insists that you need to convert this png to pdf
then you you *might* be able to do it with "convert", if that
doesn't work try sam2p or other tools.

Good luck

Jim
-- 
J.J. Green,  Seaview Sensing Ltd.,
http://seaviewsensing.com

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