Linked Questions

1 vote
1 answer
7k views

create heatmap from coordinates [duplicate]

computer science student here, haven't done much in GIS, just trying to finish a project for a class. What I have is a CSV of origin/destination points as co-ordinates (longitude and latitude) what ...
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  • 119
15 votes
3 answers
6k views

How to bulk import gpx files to QGIS and merge into a single shapefile?

I am looking to create my own 'heatmap' of all the bike rides I have recorded using the app Strava in QGIS. I have over 450 individual gpx files and would like to merge the track points layers into ...
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  • 347
16 votes
5 answers
20k views

Clustering trajectories (GPS data of (x,y) points) and mining the data

I've got 2 questions on analyzing a GPS dataset. 1) Extracting trajectories I have a huge database of recorded GPS coordinates of the form (latitude, longitude, date-time). According to date-time ...
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  • 489
18 votes
1 answer
2k views

Statistically calculating real road from set of GPS tracks?

I participate in a long-distance cycling club, and we started to collect GPS data routinely from our riders. My interest is to calculate "the real trajectory" for future events based on accumulated ...
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  • 1,217
7 votes
2 answers
2k views

Managing error with GPS routes (theoretical framework?)

I'm looking for the appropriate theoretical framework or speciality to help me deal with understanding how to deal with the errors that the GPS system has - especially when dealing with routes. ...
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  • 449
3 votes
2 answers
2k views

Create line heatmap with QGIS

I have loaded my bike tours as .gpx files into QGIS. It already looks quite nice but I was wondering if it might be possible to create something similar to the strava heatmap with tools of QGIS. I ...
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  • 373
2 votes
2 answers
2k views

Quantitative vs Qualitative heatmap

I'm having a debate with a colleague of mine over whether generated heat maps are quantitative or qualitative in nature. The underlying data source is GPS points. The GPS devices that we use are ...
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  • 901
6 votes
1 answer
2k views

ArcGIS Symbology Transparency

Using ArcGIS 10.1, I am interested in symbolizing a series of polylines to generate a pseudo-heatmap like one of the answers to this question. The essence of the solution idea is to symbolize each ...
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  • 4,349
6 votes
1 answer
1k views

Showing density of overlapping features via transparency in ArcMap?

Below is a famous map produced by the Facebook team, which shows the connections between their users. Where there are multiple overlapping features, the lines show more brightly, giving a clear ...
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  • 20.6k
3 votes
2 answers
589 views

Dividing shapefile with many polygons into equal parts

I have a shapefile with hundreds of caribou movement corridors. using this data, I am trying to create a map displaying the frequency of use to determine important movement and migration pathways for ...
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2 votes
0 answers
437 views

Visualising road segments as heatmap

I have some data on frequency of different road segments, and need to visualise it as a heatmap. Is there some utility/plugin for Mapbox or Leaflet which does this kind of visualisation. I am only ...
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0 votes
1 answer
63 views

Displaying frequently traveled routes? [duplicate]

How can I display frequently traveled routes? I think this has been asked before in a question I am unable to relocate which was about how to display multiple overlapping routes on a map, so that ...
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  • 23.2k
0 votes
0 answers
24 views

QGIS Heat map Agent

So I have a city lets say London and I've imported the location of houses in London and roads next to those houses and calculated the nearest distance point in meters and have it as a layer. Now my ...
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