infact i noticed that if there are N sketches inserted in the scraps, for each one of the sketches all the N sketched are included in the pdf.
therefore the size of the pdf grows quadratically, ie, as N*N, with the number of inserted sketches. maybe martin may explain why it is so ... thanks. marco ________________________________ From: Michael Wasmund <knollesimage at t-online.de> To: List for Therion users <therion at speleo.sk> Cc: Christopher Ross <chrsross at t-online.de> Sent: Sunday, November 4, 2012 1:53 PM Subject: Re: [Therion] background sketch inserted multiple times Hello Bruce,  I think we're suffering the same inflated PDFs. I attach a small project which uses 3 very tiny PNGs as input, resulting into a PDF which is at least 3x the size in MB. With large bitmaps, a PDF is produced which some computers cannot handle anymore because of size. We also use Therion version 5.3.10.  For the "Fuchslabyrinth" Project, we have an additional issue which is at least as painful: Overlapping sketches (even if the inserted PNGs are transparent) lead to a PDF output, where passages in the overlapping area are concealed. Current workaround is to crop the PNGs razorsharp at the passage boundaries, but that is not always possible.  See attached mini-project.  If you or the Therion developers have a "fix" for either issue, we'd greatly appreciate receiving it!  Cheers, Michael. ----- Original Message ----- >From: Bruce >To: 'List for Therion users' >Sent: Tuesday, October 30, 2012 7:45 PM >Subject: [Therion] background sketch inserted multiple times > > >Michael >I think you just added a wiki item on Fuchslabyrinth caves where it says >Therions bitmap morphing feature is being used. >I am intrigued because in 2008 or 2009 we were starting to use this feature, >then we were delayed, and by the time we got back to experimenting there was >a bug in the next version of Therion whereby the sketches were inserted into >the pdf outputs multiple times, taking inordinate time to compile and making >the pdf files very large, 100âs of megabytes in many cases. Stacho >acknowledged the bug and I think some change was made in 5.3.9, but it did >not fix the problem for us. > >Described here >http://article.gmane.org/gmane.comp.gis.therion/2680/match=sketches > >I have tried again with a couple of different files using 5.3.10, in one >trivial case a 283kB sketch inserted in a small map produced an 11MB pdf file >(the pdf without the sketch is 300kB). > >So I am wondering how you are making it workable? >Either; >-         something in our custom metapost or layouts is causing >the error for us and you are not experiencing this bug, or >-         you are using an old version of Therion in which this >feature was bug free, or >-         you are putting up with very large output files, even for >very small portions of your overall project >Iâm interested in your comments. > >Bruce >________________________________ > _______________________________________________ >Therion mailing list >Therion at speleo.sk >http://mailman.speleo.sk/mailman/listinfo/therion > _______________________________________________ Therion mailing list Therion at speleo.sk http://mailman.speleo.sk/mailman/listinfo/therion -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mailman.speleo.sk/pipermail/therion/attachments/20121107/6b063435/attachment.html>
