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Geographic Information Systems

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A layer is a collection of information. It contains specific elements of a gis in a specific presentation method (e.g raster or vector layer). Layers can be edited separately in order to create individual topics for a map.

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I am using QGIS 3.44. I have two multilinestring features in two different layers, representing two segments of a hiking trip. I would like to create an elevation profile covering the entire trip. I ...
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Same question as Storing metadata in PostgreSQL? but for QGIS. How could we store metadata in PostgreSQL and load it automatically when loading a layer in QGIS? Idea is then to push it back to QGIS ...
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I'm constantly exporting raster and vector data to make it permanent. I think it would be useful to have a checkbox when exporting to keep/transfer the current layer's styling to the permanent data ...
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Every time I create a shapefile in QGIS 3, when I reopen QGIS, I find the file in the Layers panel, but it does not appear on the canvas. I don't change anything in the file properties it is the same ...
Solopro's user avatar
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I have two (or more) features from different layers that share the attribute field "name". I’d like to select these features on the map (e.g. using the Multilayer Select plugin) and then ...
Jorgo's user avatar
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I have a main geopackage on QGIS Desktop (main.gpkg) with existing observation layers. a QField geopackage (e.g. field_data.gpkg) that contains new features collected in the field using the same ...
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In a plugin I want to create a duplicate of the selected layer and add a virtual field including some symbology to it. I've tried the following, and it appears to do the what I want (imitate the "...
Honeybear's user avatar
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I'm using QGIS 3.34.7-Prizren and have a multi-layered project I regularly use. It includes locally saved layers of various types and quite a few web provided layers such as ArcGIS REST, WFS, WMS, ...
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I've got a .dbf, a .shp and a shx. file of a point layer. The Points are set in the ETRS89/utm32 coordinate system. I've added the layer as shp layer in a project with the coordinate system WGS84 ...
Marian's user avatar
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I have this little Python code. I want a button or at least a tool in the toolbox which I can click so the console does not have to be open all the time. I unterstand that saving this code as .py and ...
BAE_23's user avatar
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I am trying to log loading time of QGIS projects, especially the load times or layers and such. I have found this thread (Measuring loading time of each layer when opening a QGIS project), which ...
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I have a vector layer consisting of points in QGIS. I want the layer to stop rendering when it reaches a minimum scale of 1:50,000, so that when I continue to zoom out beyond 1:50,000, the layer stays ...
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I've created a detailed base map that I wish to copy for multiple projects but they are all linked to the same source data. The idea is to do a "Save as" of the QGZ file to the new location ...
Alan's user avatar
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I am trying to set up a QGIS project for my worksite that uses raster layers based on continually updating orthomosaic images for various site areas, with these orthomosaic images following the naming ...
Justin's user avatar
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I have three layers in QGIS: district (red outline), lots (in purple), and civic centers (in gold). For each lot, I want to assign the nearest civic center that is in the same district. For example, ...
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