How to calculate the average velocity over the flowpath length?
Hiking & ActivitiesHow do you calculate average velocity? Average velocity is calculated by dividing your displacement (a vector pointing from your initial position to your final position) by the total time; average speed is calculated by dividing the total distance you traveled by the total time. How do you find velocity from flow rate? Additionally Flow rate
What is the best way to merge lots of small adjacents polygons ? (POSTGIS)
Hiking & ActivitiesHow do I combine multiple polygons into one? Note: Click the Edit tool. on the Editor toolbar. Click the features you want to merge. The features must be from the same layer. Click the Editor menu and click Merge. Click the feature that the features will be merged into and will supply the attributes for
Viewing GDAL (and other) raw commands in QGIS
Hiking & ActivitiesHow to use GDAL in command line? Step 4: Testing the GDAL install Open the Windows command line, by going to the Start Menu -> Run ->Type in cmd and press Enter. Type in gdalinfo –version. Press Enter. If you get the following result, then congratulations your GDAL installation worked smoothly!
QGIS C++ 3D Map Scene
Hiking & ActivitiesHow do I show 3D maps in QGIS? 4. Create 3D Map View In QGIS, go to View menu >> New 3D Map View. In the 3D Map 1 window: click the Configure button. Elevation: select your DEM or the hillshade. Make any changes to the other settings if you want. In the 3D Map
How to install an in house package from local directory in QGIS?
Hiking & ActivitiesHow do I install a local PIP package? How? Install the downloaded package into a local directory : python get-pip.py –user This will install pip to your local directory (. local/bin) . Now you may navigate to this directory (cd . local/bin) and then use pip or better set your $PATH variable this directory to
NoData values recognised in raster in ArcGIS Desktop but not following symbology rules?
Hiking & ActivitiesHow to change NoData value in raster? Reclassify Tool This tool allows you to change old raster values to new raster values. The best part is that you can reclassify a range of values. To go from no data to zero, enter “NoData” in the old value field, and enter a new value of zero.