Questions tagged [singlepart]

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QGIS/Spatialite cluster analysis with density

beginner here I am trying to analyse a large set of points (2 millions) over a set of polygons (3000), and particularly find clusters of points. Doing it in QGIS was taking too long/crashing the ...
1
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0answers
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Promoting to multipart using PyQGIS?

I am creating a code that aggregates neighbouring polygons if they have similar value on the field 'DN' and if they are closer than 50 m.Then I want to iterate this 3 times. I could already get the ...
1
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157 views

QGIS lines multipart to singlepart without splitting at self-intersection

I have a line layer and a vector grid. Now I want to count the lines in each raster. First I split the lines by intersecting the line layer with the vector grid. Second, I need to do a multipart to ...
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Segmenting a feature class based on the geometry of a multipart feature class

I have a single feature class representing tree canopy over the span of several cities. I want to segment it so that I can calculate the percentage of canopy per census tract. I'm using ArcMap 10.7.1 ...