Some more progress on the GCS. I integrated a line builder and line manager. The line builder contains the editor to edit GPS coordinates of the line, as well as options for line thickness and color. The line manager imports these coordinates as a set, and given a name. This clears up the line builder, allowing multiple lines to co-exist.
The Line builder can import a list of GPS coordinates from a text file with the format:
I plan on adding a 3rd dimension, but i don't yet have a barometric pressure sensor.
This is zoomed in to show the Open Street map layer.
The line appears shifted from the road, but it is really aligned. The line right now is at an elevation of 2500 km, so the shifting is due to the perspective distortion. Any lower, the line disappears into the ground (the globe has elevation data). I need to figure out how to have the line at ground level.