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Questions tagged [singlepart]

The tag has no usage guidance.

0
votes
1answer
46 views

Splitting multipart polygons to single part in R?

I am looking for the equivalent of "Convert multipart features to multiple singlepart features. Creates simple polygons and lines" in QGIS and similar in ArcGIS for R. Background I used the ...
1
vote
0answers
32 views

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 ...
4
votes
2answers
79 views

Bug of QGIS when using “multipart to singlepart”?

I used yesterday, in QGIS 3.2.3 the tool to convert multiline to a single line ("multipart to single part"). I chose the option of the command "multipart to single part" the geometry feature (line) ...
0
votes
1answer
93 views

Turn dissolved polygons to singlepart in geopandas?

I have performed a dissolve but I want to turn it to singlepart.I have searched in the docs but haven't seen something that does it. What do you think? Actually, I want to make it singlepart and then ...
1
vote
2answers
333 views

delete segments from road layer - QGIS

I have a road layer, with two locations points. I have created a shortest path analysis between these points. Now, I would like to delete some segment from the road network. I would like to delete (...
1
vote
0answers
96 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 ...
1
vote
1answer
590 views

How to divide a multipart polygon into many polygons using QGIS?

I have a polygon which is actually composed of many polygons but it results as unique geometry in the shapefile. It's easier to explain with a picture. The yellow parts are in my shapefile a single ...
4
votes
0answers
242 views

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 ...
0
votes
0answers
59 views

Saving z-Coordinate when converting from multipart to singlepart in QGIS?

I'm pretty new at QGIS (2.18.2) and there's a problem i can't fix by my self. My Data is a multipart-shapefile wit x-,y- and z-coordinates. I need to convert the multipart to singlepart, but when i ...
6
votes
1answer
97 views

Bounding box styling of individual parts of multipart objects

In my QGIS project I have a multi-linestring vector layer where each multi-linestring feature consists of small not connected linestrings. I would like to show a bounding box around each of the parts ...
4
votes
3answers
2k views

How to determine if a polygon shapefile is multipart or singlepart?

The ArcMap Properties dialog does not indicate if a shapefile contains multipart or singlepart polygons. Is there some other way to identify if a polygonal shapefile (or any feature class, for that ...
7
votes
1answer
8k views

Converting Shapely MultiPolygon to Polygon: Technique doesn't always work

In order to get the exterior coordinates I need to convert a shapely MultiPolygon to a Polygon. I do it like this: if poly.geometry.type == 'Polygon': x, y = poly.geometry.exterior.xy elif poly....
1
vote
0answers
155 views

Singlepart to multipart not producing results [closed]

I have a line - a street downloaded from OSM. It is in separate parts geometrically, but is contained in one record in the attribute table. That means it is only one row. I would like to split this ...
8
votes
1answer
7k views

Converting selected multipart features to single parts in QGIS

I'm looking for a way to convert one or many selected multipart feature to different single part features without recreating another layer, the way Arcgis allow a user to select a multipart feature ...