Hi Michael, (in english so all can understand it, but not be angry about the poorness :-)) I know your project of "Fuchslabyrinth" and so I may say: for the future it will be the best Idea to draw the cave or the old bitmaps new. I know, it is very much work. But after you will have no Problems to add new parts and you will have all advantages of Therion. Assumed you have the old data of the centerline, that is clear. Some years ago, I have done the same with "Vetterhöhle" (2,5Km) and "Bärentalhöhle" (now 440m). The Vetterhöhle was drawn in AutoCad and that was a problem for me and others because of the very costy program and the use of it. The Bärentalhöhle was drawn simply with Tusche (is that the same word in English as in german?). 400m was not so much work, but enough. But today I`am lucky about that doing, because every year there comes some meters in addition. Drawing the Vetterhöhle in Therion was another thing, but at the end it was the best which someone can do. "Fuchslabyrinth" is very longer and so very more work, but in the end you will be lucky too. If you want, I can give you an offer: Give me the data and the corresponding bitmaps and I will help you part by part. So I have additionally an advantage; I don`t forget Therion :-) Greetings Markus PS. All other please over directly message in german :-) -----Ursprüngliche Nachricht----- Von: therion-bounces@speleo.sk [mailto:therion-bounces@speleo.sk] Im Auftrag von Bruce (External) Gesendet: Mittwoch, 27. Mai 2015 10:44 An: 'List for Therion users' Betreff: [Therion] How to mark a preferred way through a cave Michael If I understand correctly Dave's suggestion of user defined lines will only work if you draw scraps, and I don't think that is what you are asking for (although drawing simple scraps with only station points and route lines to overlay your bitmaps might be your best solution). I hesitate to suggest this, but if you don't mind using a nasty hack, you could, for example set... flags approx ...on the route, and then redefine l_survey_cave to emphasise the approx centreline and make recessive other line flags. An example of the sort of code you could use is here http://therion.speleo.sk/wiki/doku.php/metapost?s[]=approx#general_symbol_ex amples "Visualize cave centreline shot flags with colour for splay and duplicate, and dash for approximate shot flags" This will only work with pdf and probably svg outputs, and will have no effect on 3d outputs. Bruce -----Original Message----- From: therion-bounces@speleo.sk [mailto:therion-bounces@speleo.sk] On Behalf Of Michael Wasmund Sent: Monday, 25 May 2015 3:31 p.m. Hello, If I want to mark a preferred way through a maze cave, is there a way to "mark" or "flag" some centerlines, so that they appear different from the majority in 2D / 3D output? (Can't work with scraps, it's all bitmaps) Michael. _______________________________________________ Therion mailing list Therion@speleo.sk http://mailman.speleo.sk/mailman/listinfo/therion This message is intended solely for the designated recipient(s). It may contain confidential or proprietary information and may be subject to attorney-client privilege or other confidentiality protections. If you are not a designated recipient you may not review, copy or distribute this message. If you receive this in error, please notify the sender by reply e-mail and delete this message. Thank you. Diese Nachricht ist nur für vorgesehene Empfänger bestimmt. Die Nachricht kann vertrauliche oder persönliche Informationen enthalten und kann datenschutzrechtlichen Bestimmungen unterliegen. Wenn Sie kein vorgesehener Empfänger dieser Nachricht sind, ist es Ihnen untersagt, die darin enthaltenen Informationen einzusehen, zu vervielfältigen und zu veröffentlichen. Sollten Sie diese Nachricht versehentlich erhalten, bitten wir Sie, den Sender zu informieren, indem Sie auf diese Nachricht antworten und die Nachricht dann löschen. Vielen Dank.