Questions tagged [qgis]
QGIS is a cross-platform GIS application licensed under the GNU General Public License.
41,511
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QGIS - Filter value relation by crossing 2 arrays
I'm working on a value-relation to filter a list based on the content of 2 fields.
The value relation is based on the field "IDC".
I want to compare the content of the field "IDC" ...
- 733
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QGIS - raster layer located off the basemap / doesn't display
I'm importing this raster layer (PTHA_19_San_Francisco_Amplitude_00475.tif) into QGIS. If I first import the OSM basemap using Quick Map Services, then import the raster layer and click "Zoom to ...
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No CRS available for an .adf file
I imported this .adf raster from the JRC European website. Unfortunately, when I import it in QGIS or RStudio, I see no CRS and cannot compare this layer to standard WGS84 CRS layers.
I started a free ...
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QGIS getting the height from a *.gml file
So national geoportal is providing me with vector buildings in a GML file.
They import great to the QGIS. but the atribiutes table does not have usual height field.
In a 3d view they are flat. But ...
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Updating symbology of layer using selected features of another layer and table linking the two
I would like to come up with a visualization scheme for a connectivity matrix. I have two sets of polygons, and a table that shows the connections between them. I want to create a symbology using the ...
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Convert ~14500 features into ~500 bounding boxes covering at least the same area in QGIS
I downloaded a shapefile from OpenStreetMap that covers all ocean and coastline.
This consists of around 14500 features. What I am trying to do is generate a number of bounding boxes (say 300-1000) ...
- 111
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Cannot display images on QGIS as an action
I've been following through the QGIS training manual, section 5.4.
I've created three features on the map, and have associated images with these features as attributes.
I have set up an action in the ...
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Can I remove the local file of a synced project in QField?
I am using QField Android to sync my data on the QGIS desktop. I would like to delete some of the projects which I downloaded from QFieldCloud (since some layers failed to upload to the cloud and ...
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QGIS How to calculate closest point referenced to centroid?
I have a QGIS project in which I work with a polygon layer ('POLIGONS_TEST') and a point layer ('PUNTS_TEST').
I use the following Geometry Generator expression on the 'POLIGONS_TEST' layer to draw a ...
- 2,409
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How to vary the stile along a line in QGIS
I currently have a project with many lines where in the symbology I have the offset controlled by an expression. However with this setup I can only produce a single offset value for each feature in my ...
- 111
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Aligning raster with shapefile
I have a raster file which I need to align with a shapefile. I tried gdal warp to reproject it to EPSG 4326. When I tried doing it, I get an error message
ERROR 1: The transformation is already "...
- 93
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Displaying two elements in the same coordinate in QGIS [duplicate]
In QGIS I have two elements in the same coordinate and I believe the software is recognizing them as only one point. Is there a way for me to visually display in the map the presence of more than one ...
- 13
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Make position of layout items adaptive in QGIS Layout to avoid empty spaces due to dynamic layout items
In the QGIS Layout manager I have a Legend item and a Label item beneath it. The Legend item only shows items inside linked maps. Therefore the legend height is different by every map I make. To avoid ...
- 11
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Exporting only one page of QGIS Print Layout
I would like to export a specific page from my layout as I've made an update to one of them. I have 20 pages so exporting them all takes a while, it would be a lot quicker if I could just select which ...
- 341
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PDF output from QGIS with clickable layers AND a legend
I want to create a PDF with clickable (on/off) layers from a multilayered QGIS map - WITH - a legend and title.
I can create a PDF with clickable layers which work from the map project window using ...
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