* Re: ntg-context Digest, Vol 99, Issue 40 [not found] <mailman.75.1347633284.2084.ntg-context@ntg.nl> @ 2012-09-14 14:57 ` pol stra 2012-09-14 16:58 ` Troy Henderson 0 siblings, 1 reply; 3+ messages in thread From: pol stra @ 2012-09-14 14:57 UTC (permalink / raw) To: conteXt mail [-- Attachment #1.1: Type: text/plain, Size: 985 bytes --] Troy Henderson said: >I tested this on a black-on-transparent EPS that was created via MetaPost, and it seems to work fine. If you are not using Linux (or Unix or Mac OS X), let me know and I can probably >put together a quick HTML page to do this on my server. Thanks for the invitation. Fortunatly I’m using GNU/Linux. >> cat foo.eps | sed -e "s/0 0 0 setrgbcolor/1 1 1 setrgbcolor/g" > bar.eps >It simply translates the (0,0,0) triplet (which is black) to the (1,1,1) triplet (which is white). This is very simplistic and may not do all that you want. Unfortunatly there is no such a sequence in my file: grep setrgbcolor a1.EPS /setcmykcolor{1 sub 4 1 roll 3{3 index add neg dup 0 lt{pop 0}if 3 1 roll}repeat setrgbcolor pop}wd /sw/setlinewidth ld/scap/setlinecap ld/sj/setlinejoin ld/sm/setmiterlimit ld/sd/setdash ld/rgb/setrgbcolor ld/crgb/currentrgbcolor ld/cmyk/setcmykcolor ld/gs/gsave ld/gr/grestore ld But thank you for gave a try. [-- Attachment #1.2: Type: text/html, Size: 1275 bytes --] [-- Attachment #2: Type: text/plain, Size: 485 bytes --] ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: ntg-context Digest, Vol 99, Issue 40 2012-09-14 14:57 ` ntg-context Digest, Vol 99, Issue 40 pol stra @ 2012-09-14 16:58 ` Troy Henderson 2012-09-14 22:33 ` Troy Henderson 0 siblings, 1 reply; 3+ messages in thread From: Troy Henderson @ 2012-09-14 16:58 UTC (permalink / raw) To: mailing list for ConTeXt users [-- Attachment #1.1: Type: text/plain, Size: 702 bytes --] > > Unfortunatly there is no such a sequence in my file: > > grep setrgbcolor a1.EPS > /setcmykcolor{1 sub 4 1 roll 3{3 index add neg dup 0 lt{pop 0}if 3 1 > roll}repeat setrgbcolor pop}wd > /sw/setlinewidth ld/scap/setlinecap ld/sj/setlinejoin ld/sm/setmiterlimit > ld/sd/setdash ld/rgb/setrgbcolor ld/crgb/currentrgbcolor > ld/cmyk/setcmykcolor ld/gs/gsave ld/gr/grestore ld > > But thank you for gave a try. > I doubted that it would work, but thought that I would try just the same. It may still be able to be done by converting it to SVG, editing (automagically), and then converting back. If you are able, upload the EPS to http://www.tlhiv.org/upload/ and I will place around with it. Troy [-- Attachment #1.2: Type: text/html, Size: 967 bytes --] [-- Attachment #2: Type: text/plain, Size: 485 bytes --] ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: ntg-context Digest, Vol 99, Issue 40 2012-09-14 16:58 ` Troy Henderson @ 2012-09-14 22:33 ` Troy Henderson 0 siblings, 0 replies; 3+ messages in thread From: Troy Henderson @ 2012-09-14 22:33 UTC (permalink / raw) To: mailing list for ConTeXt users [-- Attachment #1.1: Type: text/plain, Size: 363 bytes --] I put together this little utility for converting a color EPS/PDF/SVG to grayscale. http://www.tlhiv.org/grayscale/ Selecting "invert" swaps colors from white to black and black to white. So, using a black/white graphic on a transparent background should transform it to a white/black graphic on a transparent background. Testing is certainly necessary. Troy [-- Attachment #1.2: Type: text/html, Size: 473 bytes --] [-- Attachment #2: Type: text/plain, Size: 485 bytes --] ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 3+ messages in thread
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