6
votes
Travel time calculator QGIS
You can either use pgRouting or if not using your data but the OSM street network would be fine, use the OSM Route plugin: Enter a start point and fill out the Accessibility Analysis options.
- 10.2k
5
votes
Travel time calculator QGIS
For whoever also stumbles on this question. Now for more than 2 years since the inital question was raised and QGis 3.X has become more mature, one could achieve this by ORS tools or QNEAT3
ORS ...
- 63
4
votes
Accepted
How detailed should I make the shapes.txt for a General Transit Feed?
It is all preference, so think about it from the perspective of users, and balance that with how difficult it is to produce, and how much the details stray from the road.
I have used GTFS extensively,...
- 8,598
4
votes
Projecting Cross-Track distance on great Circle?
EDIT: I deleted my previous answer as it was wrong. First big mistake I made was performing dot and cross products using spherical coordinates. One needs to convert them to Cartesian first.
(I didn't ...
- 141
4
votes
How to automatically generate a route between locations?
OSM Tools:
My recommendation would be to use OSM tools for QGIS which you can download as a plugin. OSM tools was created by Nils Rode and is an adaptation of the OSMroute plugin which uses the ...
- 3,160
4
votes
Accepted
Summing attribute values of overlapping polyline portions in ArcMap?
I solved this problem with clues from @FelixIP's answer, and great help from the answer I found at
How to sum line features.
Step 1:
Make sure all overlapping lines are actually overlapping. Using
...
- 255
4
votes
Accepted
Drawing series of lines from hub in QGIS?
You can use the Join by lines (hub lines) tool for this.
This algorithm creates hub and spoke diagrams by connecting lines from points on the Spoke layer to matching points in the Hub layer.
- 10.2k
4
votes
Display lines which share segments by offsetting them only where they overlap?
I truly believe that I have got your question correctly. Thus, you want an offset where transport lines share same geometry otherwise they have to remain at the same place.
Let's assume there is a ...
- 29.9k
4
votes
Accepted
Clicking on route and obtaining measure or distance for that clicked point using QGIS
Unlike Arcmap you don't need a separate tool or even a plugin to access this information in QGIS (at last from version 3.4, maybe in earlier version as well).
By using the "identify features" tool ...
- 14.5k
4
votes
Accepted
Storing shortest path route - QGIS 3.22.9
Use this expression to get a comma separated list of LinkID values from the layer called network:
array_to_string (overlay_contains ('network', LinkID))
The expression, used here for visualization ...
- 63.1k
4
votes
Making the coordinate trace looks more smooth without road network
Identify the point exactly in the middle of the two building polygons: Find the two closest polygon to each point and get the point on these polygons closest to the initial point. Connect these two ...
- 63.1k
3
votes
Creating route (by hand) over a road shape in QGIS?
If you have vector roads data then the new (>2.14) trace tool in advanced feature editing should work for you.
- 79.9k
3
votes
Using Network Analyst to retrieve the shortest bus route with many lines
Consider adding "Point" cost barriers. See Barriers.
- 399
3
votes
How to draw route from OSRM on right road using OpenLayers?
With Latest API use
overview
simplified (default), full, false Add overview geometry either full, simplified according to highest zoom level it could be display on, or not at all.
curl 'http://...
- 31
3
votes
How to draw route from OSRM on right road using OpenLayers?
The route geometry you get is a encoded polyline. You can create a route from it as follows:
// route is ol.geom.LineString
var route = new ol.format.Polyline({
factor: 1e6
}).readGeometry(...
- 31
3
votes
Walking route that covers the largest area in shortest distance
This is a really interesting question. I think that the zig-zag is the optimal geometry because this is the path that light would take if both boundaries were mirrors. The slight overlap in area is ...
3
votes
How to automatically generate a route between locations?
If your road network is a local file or database, QGIS 3.0 has a Processing algorithm which will generate a routable version of it and can generate routes between all the point features in a source/...
- 27.3k
3
votes
Summing attribute values of overlapping polyline portions in ArcMap?
INPUT:
WORKFLOW:
arcpy.Dissolve_management("ROUTES", "..SCRATCH.gdb/SEGMENTS", "SINGLE_PART")
arcpy.SpatialJoin_analysis("SEGMENTS", "ROUTES", "....
- 22.5k
3
votes
Showing route between two points in OpenLayers 3
Unless you simply want to link the points with a straight line you would need to use a route API. The are several alternatives which work by making an xhr get request which returns a json containing ...
- 12.1k
3
votes
How to find lat/long of point knowing cross track distance
Given the coordinates of A, B and C, and knowing that the angle in D is straight, we do not need to know the distance between B and D. We could calculate it, but in truth it is not necessary to know ...
- 13.4k
3
votes
Calculating isochrone for linestring
You could do this using QGIS and the TravelTime plugin. You can turn lines into points using method 2 in this tutorial https://wiki.tuflow.com/index.php?title=QGIS_Convert_Lines_to_Points. Once you ...
3
votes
Calculating isochrone for linestring
You can also do it with the QNEAT3 Plugin: https://plugins.qgis.org/plugins/QNEAT3/
I have a line which is 7.7 km long, represented by 1112 points, so ca. one point every 7 meters. To get the points ...
- 63.1k
3
votes
Accepted
Creating multiple routes with several stops using QGIS
You can use this script: (Reference)
# CHANGE LAYER NAMES
networkLayer = QgsProject.instance().mapLayersByName('networkLayerName')[0]
pointLayer = QgsProject.instance().mapLayersByName('pointLayerName'...
- 74.6k
3
votes
Calculate grid cells enter/exit timings from overlayed timed route
In QGIS 3.22 there is the option to rasterize 3D lines, interpolating the vertices (Burn value extracted from the “Z” values of the feature):
https://docs.qgis.org/3.22/en/docs/user_manual/...
- 13.4k
3
votes
Making the coordinate trace looks more smooth without road network
Create a regular polygon grid with cell distance a bit smaller than the distance between the buildings (see screenshot).
Check for each point within which cell it is and snap the point to the cell's ...
- 63.1k
3
votes
Calculate road distance between two points in PostGIS - Resultant distance is not accurate (not even close to the actual distance)
A more versatile, more performant approach:
SELECT
ori.id AS origin_id,
dst.id AS destination_id,
ST_Length(tr.line_string) * ABS(dst.frac - ori.frac) AS road_distance
FROM
troad AS tr
CROSS ...
- 28.8k
2
votes
Using OSM for routes?
The other answers on this page provide some great specific details - but I think a more general answer to the question is in order (not least for future viewers with similar problems):
There are many ...
- 2,960
2
votes
What are the existing datasets of world maritime routes?
This repository has shipping route network data available as geopackage files at various resolutions from 5km to 100km
https://github.com/eurostat/searoute
It's an extension of this dataset:
http://...
- 21
2
votes
What are the existing datasets of world maritime routes?
Please check this one, give corresponding credits to authors
https://www.nceas.ucsb.edu/globalmarine/data
Enjoy
EDIT: Shipping routes are there: raw_2008_shipping_mol.zip
https://knb.ecoinformatics....
2
votes
Accepted
Travel planning - Finding farthest points of a polygon
Non-Convex Polygon
You should draw the Medial Axis Transform (skeleton or center-line) of the polygon. Options to do this:
Create Centerlines
use CGAL with arcobjects
Then utilize the centerlines ...
- 8,753
Only top scored, non community-wiki answers of a minimum length are eligible