New answers tagged polygon
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Converting vector or polygon layer to a continuous raster in ArcMap
An off the top of my head approach you could explore is to use:
The create fishnet tool to create a grid of polygons
Select the grid polygons that intersect your polygon data
Run convert to raster ...
- 40.7k
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Add geometry Attributes (area and perimeter) using PyQGIS
If you want to use Processing algorithms you can concatenate many algorithms.
In you case:
from qgis import processing
clip = processing.run("native:clip",
{ 'INPUT':...
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Create polygons from opened/overlapping lines
What you're looking at here are significant topology errors. Here's a good article on ways to fix them in QGIS. Once you've fixed the topology errors, the polygonizing tool will work as expected, ...
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Finding average distance within polygon to point?
Build the shortest path map from the Capital and compute the area of each cell (feel free to ask for clarification)
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ArcGIS Pro Split 'multiple buffer ring' output into separate polygons based on centroids
I think Multipart to Singlepart would achieve what you want:
https://pro.arcgis.com/en/pro-app/latest/tool-reference/data-management/multipart-to-singlepart.htm
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QGIS: fill a simple line polygon with color when selected
A third, and manual, alternative to the other two answers currently posted, is to change the polygon layer's symbology from Outline: Simple Line to Simple Fill with a transparent fill. That's done by
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Add polygon areas by roof orientation condition
You can use sum() with a filter, like this:
sum(area($geometry),filter:="DN">135 and "DN"<225 and intersects($geometry,get_feature('buildingpolygon',"buildingid",'...
- 29.8k
4
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How to make constrained Thiessen polygons in ArcGIS Pro/QGIS 3.26
Run multipart to single parts.
Select polygons that do not contain any of the points that were used to create the voronoi polygons.
Merge the selected polygons with the largest neighboring polygon.
- 52.1k
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ST_MakeSolid() creating an invalid solid from closed polyhedralsurfaceZ
I realize that this has long been answered, and well, but I wanted to provide a bit more information, because I recently struggled with a similar issue. This is an application of the Right Hand Rule.
...
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Manually modify the legend symbology in QGIS
Instead of using a pixel based graphical software approach, what you want to do can be realized much easier using QGIS expressions with Geoemtry generator. Then also the legend will appear correctly (...
- 52.1k
3
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Filling polygon with multiple unequally different colors and label (3, 4, 5 and more colors) - Code needed (Symbology - Geometry generator)
You can achieve what you mention in items 1&2 with the Geometry Generator.
Assuming there are 5 attributes, representing percentages (total of all5 values needs to be 1). In my example, these ...
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In QGIS how do I represent a polygon with no data as grey, and those with a value of zero as white?
Apply your graduated symbology, then change your symbology type to Rule-based (the rules will default to the existing graduated symbology, but you can tweak each class if you need after changing), ...
- 56.6k
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Create SQUARE polygon around center of the point
Maybe you can adapt from this code which makes use of Shapely's buffer method through GeoPandas with a squared caps style:
from math import sqrt
from shapely import wkt
import geopandas as gpd
def ...
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Why area of intersection differs from total area of polygon?
As stated in my comment, check Using area() or $area function in QGIS, when the data (polygon) is stored in UTM? for the difference between planimetric area area() and ellipsoidal area $area for more ...
- 38.6k
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WFS intersect filter with multiple polygons
Thanks for taking a look at my question, I tried both of your suggestions and unfortunately it didn't work. I suspect you are correct and it is an issue with the source.
I have managed to find an ...
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shapely | Binary mask of Polygons' intersection
Instead of referencing a static tile_shape, for x and y coords, I needed the actual coords from the Polygon itself, using .bounds attribute.
For use in range(), they had to be cast as int().
def ...
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WFS intersect filter with multiple polygons
That should work, but I think you may be mixing versions somewhere, as you seem to be asking for a version 1.1.0 service but reference FES (which is WFS 2.0).
<wfs:GetFeature maxFeatures="5000&...
- 77.5k
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Polygon neighbors in a shapefile in QGIS using aggregate not working
Use this expression to get a string-formated list of the $id of all neighboring polygons. If you want the content of an attribute field, replace $id with the name of this attribute, e.g. "...
- 52.1k
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Missing indices when extracting vertices and edges from polygon
You have a problem with your for loops.
As there is only one polygon:
exterior = polygon.geometry[0].exterior
interior = polygon.geometry[0].interiors
ext_coords = list(exterior.coords)[:-1] # ...
- 52.9k
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