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The first picture is from a KML that allows me to add the altitude column in the attributes list, and the second one is from a KML that just adds a column of zeros:


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0 (and 360) represents North, as long as a pixel "above" another pixel is indeed north of it --- that is almost always the case. However, if you have a rotated data set (a rare thing) such that N is not up, you would have to apply that rotation to the output to get the true direction. This is not stated in the documentation because it seemed obvious, but ...


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You can use NASA SRTM data instead. http://www2.jpl.nasa.gov/srtm/ https://search.earthdata.nasa.gov/search/granules?p=C1000000240-LPDAAC_ECS&q=SRTM The data is indexed by integer degree of latitude and longitude


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From QGIS 2.14 and on: Create attribute and fill with field calculator with expression: z ($geometry) Screenshot from my data. Version QGIS: 2.16.0 EPSG:28992


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Alternatively, in QGIS save as CSV dialog, under the Geometry heading there is a tick box 'Include z-dimension'. Tick this box and select point. From the layer options heading, select XYZ for the geometry. Tested using QGIS 2.14.3 Essen


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How are the Z values measured? Depending on what the z values are referenced to, you may be able to use them without 'reprojecting'. If they are referenced to the ellipsoid, you'll need to recalculate them. Here is an online calculator for this purpose: http://apps.linz.govt.nz/coordinate-conversion/index.aspx?Advanced=1 Here is a table of examples of ...


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In ArcGIS, you could make a raster surface model using topoToRaster, than use Slope to represent your raster, then use RasterToPolygon to make your steep areas and your relatively flat areas into polygons and then delete the relatively flat areas that do not have a watercourse in their midst or that are not circumscribed between steep slopes. There will be ...


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Or something like this: You have to make a colored map and export to kmz,and make map transparent.


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If you want to obtain one layer for every attribute in a specific field then you could to use "Split vector layer" in: Processing Toolbox >> QGIS Geoalgorithms >> Vector general tools


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You can do that while generating the contour lines. When you define the interval between contour lines in the Contour menu, you can provide an attribute name, in which the elevation will be attached as an attribute. See also the tutorial, step 14.


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Maybe you can use DNRGPS to do the conversion. I usually use this for tracklogs and other raw data types in gpx format.


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I think you need to fix your new shape line to contain z values. newShape = arcpy.Polyline(newGeom, None, True, False) The default is false http://pro.arcgis.com/en/pro-app/arcpy/classes/polyline.htm I also had this as my if statement for the first point if (row[0].firstPoint.X, row[0].firstPoint.Y) == (pnt.X, pnt.Y): and last point if (row[0]....



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