Questions tagged [qgis]
QGIS is a cross-platform GIS application licensed under the GNU General Public License.
41,625
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Listing stream-segment IDs for fluvial junctions with Field Calculator
Issue #3 as concerns my comeback geofictional project.
At this writing, I've tried my best (for many hours now) to come up with a Field Calculator formula that gives a list of comma-separated stream-...
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How extract data from danish open data dump file in QGIS?
For an interactive map I need to create a list of all settlements, even very small ones, of Denmark (except Greenland) including name, longitude and latitude.
First I thought I'll extract that data ...
- 101
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Problem with the QUICK OSM tool
I have a problem with the QUICK OSM tool. When I open the tool and start searching for a specific data, it gives me this message:
Error in the QGIS log window, then the QuickOSM panel, copy/paste it ...
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Is there a way to convert polygon annotations into shapefiles?
I am new to QGIS and I mapped a large flood basin as a polygon annotation, not realizing that it would have strange properties. Is there any way I could convert this polygon annotation into a ...
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Adding WaymarkedTrails maps (Lonvia Hiking Lonvia Cycling) into QGIS
I would really like to turn QGIS into an equivalent of Maperitive.
Ideally I would like to import Web Maps (OSM Mapnik, Lonvia Hiking and Cycling), Geometry Data I downloaded from https://www....
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SpatiaLite views in QGIS are not being mapped correctly
I've created a view in SpatiaLite, the unique id is made with
cast(row_number() over() as integer) as id
the geometry is made with
CastToMultiPolygon(st_union(geom)) as geom (it's a merging operation)
...
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Visualize multiple variables on one shapefile, QGIS
My goal is to visualize three variables on one shapefile layer in QGIS. I am trying to:
Determine the colour of each line in a shapefile based on one column/set of values in the attribute table.
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Display attribute table with specified decimals
I am in a QGIS layout where I display an attribute table from a layer in the project but I want that the value displayed only has 2 decimals.
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NDVI percentage
I took pictures with my drone for Corn field and I get the Orthomosaics and calculated NDVI at each interval, and make color for each interval as you can see in Image.
Now I want to calculate the ...
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Grids are not visible in QGIS map layout
Grids are not applying or visible properly. Some thick numbers are appearing on the left side of the grid, but I don't know how to make them look normal.
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Using GRASS r.neighbors with weight file
I am new to QGIS and GRASS and am trying to calculate a median cell value from an irregular neighborhood around each raster pixel using GRASS r.neighbors function.
I want to calculate the median value ...
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No categories could be matched to saved symbols in library
I have a set of categories for multiple sets of data which I would like to have categorized into the same set of colors every time. The categories are marked by the same letters in the data.
I was ...
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Creating dynamic web map [closed]
I want to create a webmap of India, with the help of Google Satellite, where if I click on a particular Indian State, that State will be on the screen on the map along with satellite view and other ...
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QField Syncing Issues - 1. Syncing feature changes in QGIS & 2. Layers could not be loaded in QField [closed]
Query 1: Not syncing changes I make to existing layers
I set up a QField project in QGIS by first creating a project and then packaging it for QField. When I sync for the first time it works perfectly ...
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HAZUS ArcMAP Alternatives in 2024 [closed]
With ArcMap entering mature support and no new licenses sold, what are the options for someone looking to conduct HAZUS analysis in a production/commercial setting?
Are there reliable HAZUS Libraries ...
