Top new questions this week:
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I want to create a legend next to my map in QGIS. Instead of the classes as legend entries (first picture), I want to add shading as shown in the second one. I found this workaround “Create a …
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Is there a way to disable the labeling of OSM in QGIS ? If I try to create a map the labels interfere sometimes with my lines I like to depict.
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As a python plugin developer I have a general question about QGIS 3 Python modules. Some of the functionality we are looking to implement is dependent on specific versions of libraries like GDAL, …
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I have two layers: contiguous polygons without properties lines with the name property that overlaps the polygons I want to get a new layer of joined polygons if they are crossed by the same line …
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Actually PostGIS has a function to get the shortest line: postgis.net/docs/ST_ShortestLine.html But as you can see, the support is only for geometry type, so we can’t get the shortest line for …
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I am using the formula: ($perimeter -sqrt($perimeter^2 – 16 * $area)) /4 to calculate the width of irregular polygons in a layer. However, I get an error “cannot convert ‘nan’ to double” …
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Currently the symbol values stop at 62 since it is the highest value in the data, I want to extend this limit to 100 (as these values are supposed to be percentages) I understand that the colours from …
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Greatest hits from previous weeks:
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This site returns Point: X: -11705274.6374 Y: 4826473.6922 when you search with the first key value of 000090, as an example. I assume that this is a spatial reference. I am looking for instructions, …
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I have a float type raster file (an NDVI made from ERDAS IMAGINE) and would like to convert it to an interger type raster file in order to use Focal Statistics function (Majority). Is there any way to …
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I have a question on the GPS positioning algorithm. In all books I’ve read for 3D positioning we need four satellites, and I don’t understand why. We need to calculate three variables: x, y, z. We …
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I am having difficulties to change the default zoom level when I open the iframe below in my site. Can anyone please help me to set zoom level when following iframe is opened? <iframe src=”http://…
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This seems like a simple enough question, but I can’t figure out how to convert a Pandas DataFrame to a GeoDataFrame for a spatial join? Here is an example of what my data looks like using df.head(): …
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I am using Mapinfo and it has Y as latitude and X as longitude. Is that the same case for all mapping software? As for any country their respective value is multiple of 1 or -1. So for Nepal can I say …
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I want the QGIS interface in English, in order to share information with the GIS community. Using another language, when chatting with the GIS community, makes things more difficult. When I installed …
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Can you answer these questions?
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Regarding the Point text within the new Annotation Layers that was just released in QGIS 3.22, is it possible to create point text annotations that are driven from a spatial dataset (specifying …
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I have a (self-created) shapefile and add e.g. another polygon to the file (or delete a vertex or any other modification) then try to save the file and finish editing, and this message comes: Could …
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How to extract latitude and longitude from a point shape file and feed into an algorithm within a single graphical model. In QGIS graphical model, I need to execute ‘upslope area’ algorithm for which …
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