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0

As @user30184 suggested, it's not a standard. Apparently, it's a mix of $GPRMC and a Tetra location message.


4

Quantitative vs. qualitative is a characteristic of the data. A heatmap is always a visualization of quantitative data (a count of events or entities). Your friend's objection that this visualization is "qualitative" is perhaps motivated by his recognition that the underlying data are inconsistently sampled, and that therefore the "data quality" is poor, and ...


2

Interesting question. It all depends on what you are measuring as a "use of space". It seems that the time the device is asleep is actually the most consistent and constant use of a single space, if you include sedentary states as a use of space. But it sounds like the device won't measure that. But if you discount sedentary states and define that as not ...


2

I had to solve this issue for a client running QGIS on Windows tablets 8-10. The best solution I found so far is GpsGate Splitter Express. If you install it with the plugin, it makes it possible to read the GPS data from the location provider and send it to a virtual COM port. The program runs at startup, so UEFI secure boot has to be disabled for this to ...


0

Like Nathan has already mentioned, GPS Visualizer has an option to export to SVG. This is the easiest option, but the exported SVG files are unsuitable to work with in any way, as instead of creating one path per track, it creates a billion of small lines that are orthogonal to the track, and only when you zoom out it looks like a line. An option that ...


1

I do some filtering of bad data within the transportation industry so I can try and give you some advice from an automated perspective. Assuming you have a time value for each point, you can filter a point where it travels a large distance in a short amount of time. The source of your data would determine what would be considered an unreasonable value ...


1

If you want to use TrackMatching, you hav e to convert your input files to one of their supported formats https://mapmatching.3scale.net/fileformats The custom CSV/Text format has the following structure: Waypoint ID, longitude, latitude, timestamp example: 44017039,5.38949431,52.187434426,"2013-03-18T07:22:38" ...


0

Since Sokkia is now owned by Topcon, you may have to go to the Topcon website, and search their archives. That unit may also be a re-branded Ashtech model, possibly named the Reliance, since Ashtech (Javad Ashjaee) partnered up with Topcon for a while.


1

You'll want to do a Spatial Join from the Overlay toolbox in the Analysis Tools toolbox in ArcToolbox. For the match option select CLOSEST —The feature in the join features that is closest to a target feature is matched. This assumes your landuse layer with points of interest is a feature layer, not a raster layer.


0

Creating a raster is easy with the GDAL API. See the GDAL tutorial here: http://www.gdal.org/gdal_tutorial.html A global 20m x 20m grid would be a fairly... large dataset, so you might find it difficult to work with.


0

Thanks for your post a few hours after mine. Your post and it's links solved my problems. I'm sorry I can't help with your question.



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