Svenne68 Posted January 14, 2012 Report Share Posted January 14, 2012 Hi there I'm trying to build a "model" that could do our job a bit easier in the field. I want it to find the most suitable place for a Helicopter to land. I want it to do it based on a DEM 1.6m and to locate sites with 25x25 pixels, 100x100 pixels, 1500x1500 pixels and with no obstacles. Any ideas of "how to begin" the project ???? Quote Link to comment Share on other sites More sharing options...
Lurker Posted January 15, 2012 Report Share Posted January 15, 2012 hem, first you need to list the variable for those model, and after that what source of data for the variable DEM will be good for topography, you need a flat land to make a landing pad, but there is another variable that still need to consider regards, Quote Link to comment Share on other sites More sharing options...
Svenne68 Posted January 18, 2012 Author Report Share Posted January 18, 2012 I used the DEM to find a slope at max. 7degree. I used all the obstacles (FC converted to raster) as a mask. I exstract these from each other and has now a raster with properly usable terrain. But when i want to find 100x100 pixels in this (160meter x 160meters square for a large Helicopter) raster with the tools i know of, it finds 10.000 pixels and this could be 1 x10000 or 25 x 400 etc........I can't seem to force it to 100x100 as a square or cirkel. Anyone ? Quote Link to comment Share on other sites More sharing options...
Lurker Posted January 21, 2012 Report Share Posted January 21, 2012 you can try tool like fishnet to make square with 160x160 m Quote Link to comment Share on other sites More sharing options...
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