On Fri, Jul 21, 2006 at 09:45:34PM +1200, greg wrote: > does anyone know if i can (MI 8.5) group layers for layer management. eg > lets say 1 want to display utilities. utilities may comprise of 4 layers > (say water, waste water, stormwater etc). i want users not to have to click > to turn on each layer, but just click to turn on utilities - then easily > switch to say zoning (which again may comprise many layers)
MapInfo doesn't support this concept, but it sure would be a nice feature. But it's not a straight-forward problem if you also want to manage layer position control (e.g. do the Utilities power lines display above the Hydrology group's rivers and the Transportation group's roads?) However, building a higher-level layer control that allowed the user to work with layer groups to the extent of turning their display on and off, either as a group or individually, would be do-able and would be useful. I've seen one application where this was done using a Visual Basic tree control connected to MapInfo via DDE, which worked quite well. But it was rather hard-coded for the application and wouldn't work for general use. This is a tool that still needs to be built. (So if anyone's bored some day and is looking for a small project they could sharpen their MapBasic skills on, this might be just the thing! - Bill Thoen _______________________________________________ MapInfo-L mailing list [email protected] http://www.directionsmag.com/mailman/listinfo/mapinfo-l
