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If the raster is in PostGIS, using ST_Value this would be handy (from this similar question): SELECT ST_Value(rast, geom) val FROM yourrastertabe, yourpointtable WHERE ST_Intersects(rast, geom) This would require you convert the linestring to points, insert into an array or table, and then run the intersection. Stream the results to a file and then back ...


4

First off, let me say how much I appreciate this question. I have seen so many example of inappropriate colour palettes applied to digital elevation models that it's good to see that people are thinking about this. There are some really good answers here too, but here is my opinion. I doubt that there is a universally good palette but rather a group of ...


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I'm sure many people already know this, but I stumbled across an excellent source of many colour ramps for QGIS (svg format). I am using QGIS 2.4 for this. Install the plugin SVG2ColR Browse to this site: SVG Ramp Download the colour ramp you like Load the SVG colour ramp and Export as Style Settings -> Style Manager-> Color Ramp -> Share -> ...



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