Calculating line lengths using PyQGIS
Hiking & ActivitiesHow do you calculate the length of a line in Qgis? The Add Geometry Attribute tool adds different set of attributes depending on whether the input layer is points, lines or polygons. See QGIS documentation for more details. In the Attribute Table, you will see a new column called distance. This contains the length of
How to edit layers in layered PDF?
Hiking & ActivitiesEdit layer properties (Acrobat Pro) Select the Layers button in the navigation pane. Select a layer, and choose Layer Properties from the Options menu . In the Layer Properties dialog box, edit the layer name or any of the following properties, and then select OK: Intent. How do I merge or flatten layers in
QGIS 3.4: Why does DEM not appear after 3D configuration?
Hiking & ActivitiesHow do I add a DEM file to QGIS? To work with DEMs, you should use QGIS’ all-in-one DEM (Terrain models) analysis tool. Click on the menu item Raster ‣ Analysis ‣ DEM (Terrain models). In the dialog that appears, ensure that the Input file is the DEM layer. Set the Output file to hillshade.
Characteristics of different methods to convert ECEF to LLA
Hiking & ActivitiesWhat are the different ways to write longitude and latitude? The numerical values for latitude and longitude can occur in a number of different units or formats: sexagesimal degree: degrees, minutes, and seconds : 40° 26′ 46″ N 79° 58′ 56″ W. degrees and decimal minutes: 40° 26.767′ N 79° 58.933′ W. decimal degrees: +40.446
Serving supplemental layers from tileserver-gl
Hiking & ActivitiesWhat is TileServer GL? TileServer GL is an open-source map server made for vector tiles, and able to render into raster tiles with MapLibre GL Native engine on the server side. TileServer GL provides maps to the web and mobile applications. What is an MBTiles file? MBTiles is a file format for storing tilesets. It’s
Compatibility PyQt5 and PyQt4
Hiking & ActivitiesIs PyQt4 compatible with PyQt5? PyQt5 can be installed alongside PyQt4 using the same Python interpreter without any problems so long as they are built with the same version of SIP. What is difference between PyQt4 and PyQt5? PyQt4 supports a number of different API versions ( QString , QVariant etc.). With the exception of