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Althoug the answer of underdark is definitely faster here, a general approach that would work with any GIS program is to generate a table with all your x and y values. This is something you can do in …

I'd recommend ogr2ogr. But your success with any method will depend on the kml file itself: kml is a hierarchical file format which can contain different geometry types with each a different set of a …

This is a bug. I'm currently fixing it. (recompiling saga against the same version of gdal). [update] Please test! Version 2.0.8 should work (you may want to remove my ppa first to make sure you don …

the record, SAGA GIS has a module "Grid Statistics" for polygons which can calculate the quantiles of a grid. http://www.saga-gis.org/saga_tool_doc/2.3.0/shapes_grid_2.html This module is available in QGIS …

I suppose that you have a column area which contains old data. In that case you could: remove the column and calculate the area directly when you need it, or (if your dataset is not changing anymore) …

You probably have introduced a large number of new points. Try using the simplify algorithm in postgis. As Sylvester points out in his comment on your question many vertices are added to create rou …

The first step is easy to accomplish using SAGA GIS, ( and if you are on linux you could even try running the modules from Qgis) Merge all the existing rows so that just one feature represents all …

Use exec. But if you are on shared hosting this is probably disabled.

Your tilelevel 20 is very high. Set it to 18, your resulting files will be 4x smaller, so you will probably not run out of memory. Zoomlevel 20 is beyond what you see in a normal google maps web viewe …

It looks like this is a known issue in QGIS: https://issues.qgis.org/issues/16920 …

I suppose that the smoothing is actually happening due to qgis processing. You can try running the command in SAGA itself. Does your project have the same projection system as the data? …

As many have said open source software can not support dwg. Dxf however is supported and autodesk provides a cloud tool that you can use to convert dwg to dxf: autocad 360 (or the previous version aut …

ogr2ogr t5190.shp t5190.e00 Should do the trick. Sometimes you could try combining the files prior to running ogr2ogr. cat filename.e0* >filename-merged.e00 Other possibilities: there is a modul …

You could try to make an overlay of your contour lines with the slope grid, and only show certain contour lines depending on the average value of the slope below that contour line.

Since the algorithm you want to use is part of saga, you could use saga directly. eg from a batchfile: @ECHO OFF REM SET SAGA_MLB = C:\SAGA\Modules REM SET PATH = %PATH%;C:\SAGA saga_cmd ta_morpho …