# Problems with postscript from canvas in rubytk **URL:** \ **Category:** Ruby\ **Created:** [April 15, 2008, 3:51pm UTC](https://www.ruby-forum.com/t/problems-with-postscript-from-canvas-in-rubytk/134841 "2008-04-15T15:51:34Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![tarazed](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/ed8c4c/32.png) [@tarazed](https://www.ruby-forum.com/u/tarazed)\ **Post date:** [April 15, 2008, 3:51pm UTC](https://www.ruby-forum.com/t/problems-with-postscript-from-canvas-in-rubytk/134841/1 "2008-04-15T15:51:34Z")
Yet another post about paddb. Paddb is a homegrown application of mine which I have been using in various incarnations for 24 years, for at least 12 years as a Tcl/Tk program. One of its functions is to print a set of address labels from a canvas via the postscript function. That has worked extremely well for the last 12 years but having made the decision to move from C to Ruby I have spent a month recoding the whole thing in rubytk. The GUI works but the PostScript output is not as expected. There seem to be two problems; one is a failure to find certain fonts, and second to use sizes for the typeface which do not agree with those requested. I can just about cope with the first bug by postprocessing the Postscript page before printing. It is a nasty hack but unavoidable. How to deal with the second is an order of magnitude more difficult since it involves remembering all the details of the labels and then searching for the correct item in the Postscript output. At this stage I feel it is necessary to delve into the ruby-tk code to find out what is going wrong. However I have been unable to locate the source, even on RubyForge. Googling returns 17600 matches but so far none seem to be relevant. Any idea where I can find the code or how I could formulate a bug report? Len ---
**Author:** ![tarazed](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/ed8c4c/32.png) [@tarazed](https://www.ruby-forum.com/u/tarazed)\ **Post date:** [April 15, 2008, 6:24pm UTC](https://www.ruby-forum.com/t/problems-with-postscript-from-canvas-in-rubytk/134841/2 "2008-04-15T18:24:32Z")
Len L. wrote: > At this stage I feel it is necessary to delve > into the ruby-tk code to find out what is going wrong. However I have > been unable to locate the source, even on RubyForge. It’s in the ruby tarball. [http://rubyforge.org/frs/?group\_id=426](http://rubyforge.org/frs/?group_id=426) ---
**Author:** ![tarazed](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/ed8c4c/32.png) [@tarazed](https://www.ruby-forum.com/u/tarazed)\ **Post date:** [April 15, 2008, 7:16pm UTC](https://www.ruby-forum.com/t/problems-with-postscript-from-canvas-in-rubytk/134841/3 "2008-04-15T19:16:33Z")
On Tue, 15 Apr 2008 11:23:35 -0500, Joel VanderWerf wrote: > Len L. wrote: > > > At this stage I feel it is necessary to delve > > into the ruby-tk code to find out what is going wrong. However I have > > been unable to locate the source, even on RubyForge. > > It’s in the ruby tarball. > > [http://rubyforge.org/frs/?group\_id=426](http://rubyforge.org/frs/?group_id=426) Thanks - bookmarked that. Now for some digging. len ---
**Author:** ![tarazed](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/ed8c4c/32.png) [@tarazed](https://www.ruby-forum.com/u/tarazed)\ **Post date:** [April 15, 2008, 7:19pm UTC](https://www.ruby-forum.com/t/problems-with-postscript-from-canvas-in-rubytk/134841/4 "2008-04-15T19:19:42Z")
Len L. wrote: > Thanks - bookmarked that. Now for some digging. Good luck, and I hope you can keep us posted. I’d like to generate postscript from tk canvas as well.