All Questions
1,690
questions
2
votes
1
answer
98
views
Moving features of different geometries at the same time in QGIS
In QGIS 3.34 I would like to move a point feature and a polygon feature at the same time.
The polygon is a round buffer around a point. I am only able to edit the point and polygon one after the other....
- 107
-4
votes
0
answers
24
views
Get a list of the points of a QgsPolygon, using Qgis PyApi [closed]
I need to isolate the points of:
<QgsPolygon: Polygon ((-56320.23199007755465573 -166518.30815678663202561, -56565.95430758487782441 -166969.12154244974954054, -56042.58511950822139625 -166945....
2
votes
4
answers
133
views
Reducing decimal places of coordinates in vector data using QGIS
I have polygon vector data, some of the polygons are imported from another 3D program (Agisoft Metashape). The imported polygons have up to 12 decimal places in the displayed coordinates (attribute ...
- 101
1
vote
0
answers
33
views
Convert ~14500 features into ~500 bounding boxes covering at least the same area in QGIS
I downloaded a shapefile from OpenStreetMap that covers all ocean and coastline.
This consists of around 14500 features. What I am trying to do is generate a number of bounding boxes (say 300-1000) ...
- 111
1
vote
0
answers
44
views
Grouping data points based on proximity and minimal count of attribute in QGIS
I am using QGIS to map animal counts on farms in the Midwest US and using a circle polygon to show where there are more than 30,000 animals between all the farms in that specific area. Each data point ...
- 11
3
votes
1
answer
49
views
Merging attributes from line layer and polygon layer in QGIS
I am using QGIS 3.32 and have a grid layer with hexagons (so polygons) and a line layer. I would like the hexagons, which are overlapping the line layer to "take on" the attributes of the ...
- 73
5
votes
1
answer
173
views
Rendering polygon by two variables in QGIS
I have a set of polygons with two variables "variable 1" which can take values A, B, C, D, and E and "variable 2" which can take values V, W, X, Y and Z.
I would want to render the ...
- 231
0
votes
0
answers
53
views
Extracting border from shapefile and then calculate distance to the border
I started with a states boundaries shapefile. I want to extract a part of state border and then calculate the distance of village centroids to the nearest point on this border. I have already ...
- 1
0
votes
1
answer
48
views
How to identify polygons in contact with other polygons with a shared boundary of at least 3 meters in QGIS?
As part of my Master's Thesis, I deal with the development stages of unbuilt building land. I intend to divide the units of unbuilt building land within the selected settlements into 5 levels and for ...
3
votes
2
answers
112
views
QGIS - Delete lines resulted from Symmetrical Difference/Clip
I used the symmetrical difference command with two shapefiles but the resulting layer containes lines due to minimal differences (see example picture below)
Is there a way to automate the removal of ...
- 33
0
votes
0
answers
18
views
Setting map extents in print composer using a polygon layer?
I have a group of data points that need to be encapsulated within different polygons. I have used the geometries by expression tool to generate a layer of these polygons. I'm trying to feed the ...
- 21
1
vote
1
answer
48
views
Calculate ratio of 2 polygons using QGIS modeler
Working with QGIS modeler, I need to do some arithmetic operations with some polygon areas.
Let's say there are 2 polygons in layer A and layer B. And I'm inputting them into the model using Vector ...
- 123
0
votes
0
answers
27
views
"ERROR: 22001: value too long for type character varying(6)" for polygon shapefile
I am facing an error
ERROR: 22001: value too long for type character varying(6)
while uploading a shapefile to online govt. portal. When I asked the person only mentioned that there is problem with ...
- 1
0
votes
0
answers
26
views
"Add Polygonal Object" button does not appear on toolbar
I use QGIS 3.36.2 and I would like to create Polygon by drawing directly on the map. So I would like to use the "Add Polygonal Object" button while edit mode but there is no one on my ...
- 1
0
votes
0
answers
41
views
QGIS - divide inside of polygon into smaller defined polygons
I have the following polygon in QGIS. It is roughly 260m x 20m
Within it, I would like to create smaller polygons like so in QGIS:
12 - 20ft rectangles
15 - 40ft rectangles
^ for 7 rows
(very badly ...
- 49