All Questions
60
questions
1
vote
2
answers
67
views
QGIS Count values between two numbers inside a polygon in another layer
I have 2 layers.
LayerA are multiple polygons of the area that i'm evaluating (Red boundarys).
LayerB is a MSAVI raster to vector with the data (multicolor greens - blues).
I want to calculate the ...
- 87
1
vote
0
answers
89
views
Extraction layer information inside a polygon from a WMS layer in QGIS
I am wondering how I can exctract data that is inside a polygon that is drawn from a DXF file using QGIS.
Case: I have a boundryline from a polyline in autocad that I export to DXF, and then import it ...
- 11
2
votes
1
answer
85
views
QGIS boundary select smaller polygons that are contained within larger polygon
I have two layers which are perfectly nested. There are dozens of SA1 polygons (thin grey outline - see image attached) within the LGA polygon (thick green outline - see image attached). I would like ...
- 51
-1
votes
1
answer
474
views
QGIS new versions 3.28, 3.30... One part can not be selected, vertexes too, can't work with multi polygons, One part is "Hole lies outside shell"
I am currently stuck on working with polygons with QGIS versions from the new patches with the new styles (3.28, 3.30, maybe 3.26 too etc...)
When I used previous versions of QGIS, for instance 3.16 ...
- 9
1
vote
0
answers
37
views
New Polygons vanish when ID is added [duplicate]
I am working on an old QGIS project and want to add new polygons to a layer. I have the data for the polygon in the attribute file showing an ID no and other data which also relates to other existing ...
- 11
2
votes
1
answer
144
views
Prioritise label by field containing data importance in the data QGIS
I have a file with many labels to show on a map. However, I want to prioritize the label by it's data. Example if my data says 3000 people live in a city, I want to prioritize this over the one that ...
- 21
0
votes
0
answers
36
views
Give points attribute based on unique polygon
I have a problem that I can not solve. I've tried to find a solution in this forum, but with no sucess.
I have one layer with points and one layer with polygons. The point layer have information ...
1
vote
1
answer
173
views
Manually modify the legend symbology in QGIS
In legend how can you make the polygon symbol which has multiple colors on the map appear with more colors, because in New Print Layout it appears with just 1 color which is not true (Symbology - ...
- 31
0
votes
1
answer
229
views
Filling polygon with multiple unequally different colors and label (3, 4, 5 and more colors) - Code needed (Symbology - Geometry generator) [closed]
I was wondering if it is possible to code the symbology of a polygon with the size of the colors according to the numbers they represent (like a graph in excel) and display the labels on each slice, ...
- 31
0
votes
0
answers
123
views
How to fill polygon with multiple equally different colors (3, 4, 5 and more colors) - Code needed (Symbology - Geometry generator)
I need to make a map with politics of the European Union and found that the numbers of members from some parties are equal, for example:
Netherlands : EPP - 6, S&D - 6, Renew Europe - 6
I tried ...
- 31
4
votes
2
answers
651
views
Not able to change the colour of a KMZ layer in QGIS
I have a question about the kmz files. I've been using QGIS for some time now, and I've always dragged and dropped the files into QGIS. Now I tried that and a window popped asking me which layer I ...
- 41
1
vote
2
answers
193
views
Filter/delete polygons if they are surrounded by other polygons
I've been looking for a method to extract polygons (here in green) witch are surrounded by other polygons (red ) in QGIS. How can I do this?
- 677
1
vote
0
answers
52
views
QGIS 3.22.6 Add letters to check boxes instead of ticks when using value relation widget
I am using QGIS 3.22.6. I have added a species list to a polygon layer using the value relation widget. For each feature I am able to tick/select which species are present within the polygon. Rather ...
- 203
0
votes
1
answer
276
views
Split Polygon in one layer based on boundaries in second layer
I have two different polygon layers, 1 and 2. Now i want to split polygons in layer 1 taking reference from polygons in layer 2. Is it possible in qgis???? Please find attached image as reference ...
- 849
4
votes
1
answer
153
views
Listing name of overlapping polygon in QGIS
In QGIS, I would like to assign polygons in one layer (ZIP codes) to polygons in another layer (counties). Specifically, I would like to know, for each ZIP code, in which county it is located. In case ...
- 45