Sorry to have missed out on this one.. maybe we should send such emails rather to the user list, as it better seen there? (so I cc here)
anyway to the problem of overlapping polygons: As this is a general data creation issue and I taught that in my lecture I also implemented 2 features for resolving such problems: a) Intersect Polygons in a Layer (in 1.5.1 - currently in NB) can be used to find the overlaps (call them Slivers) and create different pieces for the overlaps (Note, this tool is there since 1.5 years, but due to the reorganization of the analysis menu it disappeared). The tool is in "Tools>Edit Geometry" b) I created another "merge polygons with neighbour" plugin to remove these slivers (its there also since 1.5 years, but also got moved around). Similar as in ArcGIS (called "eliminate" there), you can decide if you want to merge by attribute or by area, or longest common border. The tool is now as well in "Tools>Edit Geometry". now to you questions in detail > - Compare vertices of neighbouring polygons and adjust the coordinates to common value it they are inside a given tolerance distance That is snapping, but how do you know to which to snap? Not sure, but the matching plugins could help here??? Michael? (wasn't there something by Eric at IGN?) > - Add new vertices to boundary from the neigbouring polygon if the counterpart is missing There is no tool for the vertices thing - except you may play around with "Tools>Edit Geometry>Convert>Planar Graph" and see it can help. > - Check overlaps and micropolygons and report them -Jukka Rahkonen- see above, and no, we do not have a tool to check for slivers... but one could implement something like that based on shape and area measures .. or based on the attributes if the polygon intersection operation was done before. ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Jump-pilot-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
