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Geographic Information Systems

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81 questions
Newest Active Bountied Unanswered
1 vote
1 answer
111 views

Part 1 of the question is available here: Remove duplicate vertices of a line Part 2: I'm working with a new batch of lines coming from a Service Area processing in Qgis and again I a need to remove ...
pelino's user avatar
  • 75
4 votes
2 answers
326 views

I have a large linear shape coming from a batch service area elaboration that I need to "clean" to extract real start and end vertices in a new shape. When I try to extract specified ...
pelino's user avatar
  • 75
0 votes
0 answers
93 views

I'm designing a network that has a layer of locations and a layer of street segments. I need to design a route to connect these locations along the street segments using the shortest route possible. ...
Michael Dinh's user avatar
  • 1
1 vote
1 answer
167 views

I've a large linear shape and I need to find all nodes with class >=3 connected to at least two outgoing links. It's actually a sewage graph, I'm trying to identify sewer dividers. I have read ...
pelino's user avatar
  • 75
2 votes
2 answers
113 views

I've got a set of lines "passing through" a node. The passing links are directional (not all possible combinations) I want to make arrows (line with marker) for each node to display what is ...
svn's user avatar
  • 131
0 votes
0 answers
66 views

I'm trying to find a path between different pairs of points, But within the thousands of pairs tried only a few actually result in a path. I find this odd but maybe it's normal. (note that when I'm ...
Élie's user avatar
  • 1
4 votes
1 answer
988 views

For my question I have prepared a jsFiddle demo requiring you to click at the map 5 times: If I understand this correctly, the OSRM does not care about ways. It only cares about nodes and their ...
Alexander Farber's user avatar
  • 257
1 vote
1 answer
1k views

Given a list of node ids returned by an OSRM map matching query I am trying to find a list of corresponding way ids: {"nodes":[384845483,3831831361,2628299968,502266756,346268605,373873712,...
Alexander Farber's user avatar
  • 257
2 votes
1 answer
215 views

The call to OSRM map matching returns a list of nodes: {"code":"Ok","matchings":[{"confidence":0.000854076,"geometry":{"coordinates":[[8....
Alexander Farber's user avatar
  • 257
0 votes
0 answers
120 views

I have sample nodes data like below. I am writing geopandas into osm data using xml.etree.ElementTree but the end output is not matching the nodes format that is described in osm data. Actually at ...
data en's user avatar
  • 155
1 vote
1 answer
59 views

I have a network of roads composed of arcs (segment of road connecting two intersections) and nodes (intersection of two or more roads). Each road, which is composed of one or more arcs has a name (e....
Michele Cordini's user avatar
  • 939
0 votes
0 answers
32 views

I have used '''nx.read_shp''' for converting shapefile to network, but the result I am getting is quite different from how the actual shapefile looked like.
abhiram manoj k v's user avatar
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1 vote
0 answers
73 views

I have a shapefile with numerous errors of this type (see img. 1), i.e. polygons inside other polygons consisting of a few nodes. I have tried repairing the geometries with the tool and it doesn't ...
Leonardo's user avatar
  • 317
2 votes
1 answer
972 views

I have a road network 'TR_ROAD' with EPSG:4283 crs and 1219 features. Based on geospatial theory, the road network is combination of nodes and edges. I am trying to count the number of nodes and ...
Case Msee's user avatar
  • 865
0 votes
1 answer
2k views

I have been reading the documentation on OSMnx and I am trying to use the command osmnx.shortest_path(G, orig, dest, weight = "length") on a graph of a city. I know which nodes I want to ...
Lucas Silva's user avatar
  • 1

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