Questions tagged [layers]
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.
2,428 questions
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Editing the same attribute for multiple selected features from different layers at the same time in QGIS
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 ...
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Automatically add observations of layers within a geopackage (made in QField) to already existing observations of the geopackage on QGIS desktop
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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Duplicating a layer to create a virtual field on it with PyQGIS
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 "...
- 2,758
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Online layers (ArcGIS REST, WFS, WMS, WCS) keep showing as unavailable on reopening a QGIS project
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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Points of shp-layer not visible when added to QGIS Project [closed]
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 ...
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Using Python Code as tool in QGIS
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 ...
- 967
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Exporting Layer Load Time in QGIS
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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Setting minimum scale when rendering vector layer in
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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Broken links when using "Save as" to new folder even though source data files haven't moved
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 ...
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Using raster layers with constantly updating file names / paths
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 ...
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Finding closest location in the same district with condition in QGIS
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, ...
- 469
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Saving manually positioned labels to map theme using QGIS
I generally need to have multiple layouts exporting from my QGIS project each with its own layer visibility and symbology options that can be easily tweaked without messing up other layouts.
Using ...
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Drawing specific features of a lower layer above of all other upper layers
I have a QGIS project with several layers.
Is there a way to render specific features (e.g. with the attribute class=ontop) from a lower layer on top of the features of all other layers?
I am looking ...
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QGIS Form from PostgreSQL evolutive related value column
In PostgreSQL / PostGIS : I have a layer (L1) related by a list values (LV1).
I'm searching for a way to relate L1 to LV1 which :
Automatically updates LV1 in QGIS if it's updated in PostgreSQL
Does ...
- 347
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Preserving layer groups in GeoPackage when dragging it into QGIS
I'm using QGIS and working with GeoPackages. My goal is to create a GeoPackage that, when dragged and dropped into a blank QGIS project, not only loads the layers with their symbology but also ...
