Linked Questions

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1answer
2k views

Exploding line into segments using QGIS? [duplicate]

Is there a command to explode a line feature (with many segments) into its segments? Like this: I have seen this: Simple automated way to split all lines in layer at vertices using QGIS? But, I ...
0
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1answer
2k views

How to split a line at a vertex in QGIS 2.2? [duplicate]

Is there a plugin out there that will split a polyline at vertexes? My arcgis license isn't high enough to run the tool. I'm using 2.2.
5
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3answers
711 views

Creating all possible line segments between all points

I want to connect all points in a point feature with every possible line segment using QGIS. For example, how a pentagon has five points with ten line segments connecting them all to form a pentagram ...
6
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1answer
2k views

How to get the length of each line segment in a line shapefile in QGIS

I am new to QGIS. I drew a line depicting a small length of road. But I drew it in segments and then at last right clicked at the end point and gave id=1. I extracted the nodes, their geometry. But ...
6
votes
2answers
1k views

Determining the longest side of polygon in QGIS?

Is there a possibility to determine the longest side of a polygon with QGIS? As I need to do that for hundreds of polygons I would prefer an automized method (like a plugin). So far my idea was: ...
2
votes
1answer
1k views

Does not show shortest path in networkx (in QGIS)

I used the following commands (in qgis console) to get the shortest path with astar algorithm. But the result shows 'NetworkXNoPath' every time. Why was that? Please help me to find a solution to this ...
1
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1answer
257 views

QGIS object selecting if any segment length is longer than [closed]

I have a polygon layer with generated triangles covering for example district or city area. I need to select all the triangles if any triangle (object) segment is longer than 100 meters. Picture: ...
4
votes
2answers
186 views

Display lines which share segments by offsetting them only where they overlap?

Background: As part of a route selection process I have multiple route options which often share segments. I need to keep the underlying data correct while displaying all routes in a way that they ...
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1answer
333 views

How to delete an edge in QGIS

I have used the Lines to polygons tool to turn a city boundary linestring feature into a polygon. However, the tool has connected some nodes more than one time, resulting in multiple edges . I would ...
1
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1answer
254 views

Get sum of a field for each element of overlapping paths

I've used the very useful Openroute service to develop a number of routes which I have populated with traffic numbers (on each route). I want each section of road to present the total of a field (...
0
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1answer
130 views

Split OSM highways at vertice

I am looking for a tool or query to split the OSM highways into multiple segments. Each segment should only consist of two nodes (start and end). I should do the same as described in this GIS ...
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0answers
49 views

Adding break/vertex on a polyline from points

I have a polyline which consists of just one geometry. I have points which are evenly spaced (25m). How would I add these point vertices to the line so that the points will create one line segment/...
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1answer
33 views

Creating polyline segments by points in maximum distance to each other along another polyline using QGIS

I have a polyline layer contains different roads a point layer contains points along these roads with random distances between the points. The points are also listed randomly and not in order along ...