New answers tagged gps
1
I'd argue that Bearing is more correct than Course in this context, although a big caveat is that I'm an Android developer. Also, the answers you get may differ depending on what industry they are coming from.
Here's a related question on aviation.stackexchange.com comparing Bearing, Course, Direction, and Heading.
Course, in the traditional sense, implies ...
0
After a lot of research and talking to suppliers, I ended up for this use-case with a rover RTK design using the ublox f9P module, and using bluetooth to communicate between base and rover. Our team will test performance next week.
3
First you need a map of world polygons.
> library(rworldmap)
> m = getMap()
Then you need your points in a spatial format. I'll make some random points on the globe and create a SpatialPointsDataFrame using the sp package and making sure they have the same projection string as the map:
> set.seed(123); d = data.frame(long=runif(100,-180,180), lat=...
0
If you have longitude, latitude and ellipsoidal height, you have coordinates over an ellipsoid (the WGS84 ellipsoid in your case) and related to a coordinates frame (the WSG84 geodesic frame in your case). Imagine that, a single ellipsoid among all possible, with its center, axes (ellipsoid axes) and origin of coordinates (center meridian) positioned and ...
0
The ellipsoidal height does not affect the latitude longitude. so only extracting xy from xyz should be fine.
0
while inserting data in table you can have two check 1)You can create a buffer (st_buffer) around your road network and check if point intersects (st_intersects) your buffered area.
2) The distance between last recorded gps coordinates of that point and new gps coordinates is not more than 100m (ST_DISTANCE). Only then you insert that record in you DB.
...
0
After you imported the *.csv file as layer into QGIS, right click on the layer > properties > style
Change it into "Point Displacement"
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