Hi, take a look at projection proj4js library and how to use it (its integrated in openlayers) Then you can take your Geographic coords and proj them to UTM, and do things like u did before...
http://trac.osgeo.org/proj4js/wiki/UserGuide http://trac.openlayers.org/wiki/Documentation/Dev/proj4js Cheers! 2009/2/22 toni hernández <tonidelaca...@gmail.com>: > hi, > > In the application I am working on, I need to draw a parallel line to a > previously selected linestring. > The parallel line has to be at a distance "d" in METERS. > So far the map where the lines are drawn was in UTM coordinates so I had no > problem to do that because there is a direct relation between UTM > coordinates and metric units. Just some algebra (sin, cos..) and Pythagoras > and I had the parallel line at a distance "d" (METERS). > Now the map is in Geographic coordinates and I am really confused. I do not > know how to do the parallel lines any more because I think I can not mix > meters with degrees. > > any ideas? > thanks for just reading it. > > > > _______________________________________________ > Dev mailing list > Dev@openlayers.org > http://openlayers.org/mailman/listinfo/dev > > -- Ivan Grcic _______________________________________________ Dev mailing list Dev@openlayers.org http://openlayers.org/mailman/listinfo/dev
