Feature Requests item #3601642, was opened at 2013-01-21 07:36 Message generated for change (Comment added) made by hansonr You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=379136&aid=3601642&group_id=23629
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None >Status: Closed Priority: 5 Private: No Submitted By: Alexander Goncearenco (neksa) Assigned to: Nobody/Anonymous (nobody) Summary: Isosurface - slow color remapping Initial Comment: Hi, I am using version Jmol 13.0.10 with JRE 1.6. isosurface sasurface This is a very fast calculation (takes seconds). isosurface map property temperature Color mapping / remapping is extremely slow (takes minutes). Why is it so? I have read that remapping is supposed to be very fast: http://osdir.com/ml/Jmol-java-viewer-chemical-structures-3d/2011-04/msg00059.html I need to apply different color mappings to the same surface. Initially I thought that making a JVXL file with polygons/vertex information will save some time. But it turned out that color remapping takes significantly more time than isosurface creation (in case of sasurface). Am I doing it wrong or is it a bug? Thanks, Alex ---------------------------------------------------------------------- >Comment By: Bob Hanson (hansonr) Date: 2013-01-21 15:26 Message: I don't believe this is a bug or a feature request. Color mapping is not slow from grid data, but it can be slow from atom-based data when more than just the nearest-atom value is used, as in MEP. This is because the 1/r dependance of that does not allow for only a local range of values being used (or at least not when done properly -- summed 1/r dependencies go up as r as the distance from the point gets larger in a constant-density field of atoms). Try set isosurfacePropertySmoothing FALSE You can also experiment with set isosurfacePropertySmoothing TRUE isosurface sasurface map property temperature within 5.0 which will allow you to still have smoothing but not with such long-range affects. This will be faster. Does that explain the problem? ---------------------------------------------------------------------- Comment By: Alexander Goncearenco (neksa) Date: 2013-01-21 07:53 Message: Please move to "Bugs". I accidentally posted it to feature requests. Shall I re-post? ---------------------------------------------------------------------- Comment By: Alexander Goncearenco (neksa) Date: 2013-01-21 07:53 Message: Please move to "Bugs". I accidentally posted it to feature requests. Shall I re-post? ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=379136&aid=3601642&group_id=23629 ------------------------------------------------------------------------------ Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. SALE $99.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122412 _______________________________________________ Jmol-developers mailing list Jmol-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jmol-developers
