Questions tagged [snapping]
Automatic process of moving points or features to match or coincide exactly with coordinates of another feature within a specified distance, or tolerance
427 questions
4 votes
1 answer
133 views
Moving snapped vertices of separate polygons in the same layer using QGIS
I am looking to move snapped vertices (in one move) to adjust the boundary of two snapped polygons. I want to avoid adjusting the vertex of each polygon and re-snapping, but rather move them together ...
- 141
3 votes
1 answer
323 views
Why are these latitudes snapped to a grid but the longitudes aren't?
I've written a back-end service for a popular mobile game. When certain events happen in the player's device, the game running there sends a message to my service with the latitude and longitude as ...
- 130
3 votes
1 answer
140 views
Interpolating points along river from movement data over time in QGIS
I have movement tracking data in a spreadsheet for one specific fish. Each row represents a date that a tracking station along a river picked up the signal transmitted by the fish. Each row includes ...
- 185
0 votes
0 answers
45 views
Overlapping settings on different polygon layers
I have a project with two polygon layers : "Habitat" and "Flore". This project is prepared to be used in QField by botanists. This is what I want for the overlapping of these ...
- 41
2 votes
0 answers
45 views
Do QGIS geoprocessing tools honour snapping rules/tolerances?
Do QGIS geoprocessing tools honour snapping rules/tolerances? Additionally, do the Advanced Digitizing tools, recognise snapping rules? Specifically the 'Merge Selected Features' tool. Another way of ...
- 3,870
0 votes
0 answers
33 views
Mosaic two s1 slc images with all subswatchs
I have downloaded two adjacent s1 slc images in Copernicus. I want to pre-process both images and to merge/mosaic them to create interferograns. I need to use the whole image, with all the 3 subswaths,...
- 1
2 votes
0 answers
67 views
QGIS 3, Snapping Toolbar
I'm currently starting to use QGIS 3.26 at work (and 3.38 at home) for optical fiber network maintenance so I mainly place points for boxes then draw polylines between them for cables. I find the ...
- 21
1 vote
0 answers
74 views
Snapping in PostGIS topologies
I'm trying to create a topology from a geographic table in PostGIS with the boundaries of adjacent polygons snapped to each other. I prepared the topology with the following commands: SELECT topology....
- 11
0 votes
0 answers
53 views
QGIS Snapping not working for move and copy feature
I use the Move & copy feature from the advanced digitized panel and would like to stitch two lines together, which are in the same layer. Regrettably, the snapping tool seems to not work at all. ...
- 3,061
1 vote
1 answer
79 views
How to snap Heatmap to outline of an island in QGIS
I am creating a heatmap of seabird nest locations on an island. However, some birds nest close to the coast, and part of the heat map extends into the ocean. How do I 'snap' the heatmap to fit the ...
- 13
0 votes
1 answer
56 views
GRASS plugin r.stream.snap breaks database linking - how to restore it?
r.stream.snap generates a vector with two layers. In the first, as mentioned in the documentation, the input categories are preserved. I get a vector map without any connection to the database. I have ...
2 votes
0 answers
86 views
Snapping verticies to nearest vertex in QGIS
In QGIS, I have a layer with multiple polygon features that are near to each other. In this case, the features are regions on a map. How do I get the vertices on one polygon feature to automatically ...
- 579
2 votes
1 answer
209 views
Enable all snapping types in QGIS using Python
Using the toolbar GUI of QGIS (Currenly using v3.28), I can enabled multiple/all the snapping types like this: Now that's exactly what I'm trying to do in this code: (Just setting 2 types for the ...
- 123
0 votes
0 answers
75 views
Trim/ Extend tool -- doesn't snap to intended feature
I have been using the trim/ extend tool to connect service lateral lines to water mains, or so I thought. Upon further investigation, when zoomed in as far as possible, it turns out these two features ...
- 3
1 vote
0 answers
42 views
QGIS Snapping on invisible(by scale) features [closed]
I using QGIS 3.34 (but in 3.36 same problem). When I turn on snapping, it snaps to layers, which are invisible by scale. But it isn't snapping to features which are invisible by rules in style (and ...
- 309