Point interpolation in route

Question

I have a set of GPS coords with X,Y and Course. I need to interpolate additional points based on the course of each point. It would be a simple line intersection based on lines drawn using the 2 locations and course.

EDIT: Let me clarify .. i have a set of gps logged points, each with lat/long, heading and speed. I need to interpolate an additional point between each known location based on the 2 known points and there headding. Kind of like dead-reconing but after the fact. It'll be a linear interpolation.. here is an image of said problem 1...

here is a similar question: http://gis.stackexchange.com/questions/9736/how-to-interpolate-gps-positions-in-postgis — Nicklas Avén, Jun 08 '11 at 15:33
@artwork21 - no specific GIS software. I'm generating KML data from mass data stored in MongoDB. — Jan de Jager, Jun 08 '11 at 17:08
So it seems to be a simple linear problem, but how do you take 2 locations with direction and turn it into y=mx+c ?? — Jan de Jager, Jun 14 '11 at 15:22

score 3 · Accepted Answer · edited Apr 13 '17 at 12:34

3

This can be solved using either the Haversine or Vincenty formula. Please see my answer here: How to create a point along a line given distance

edited Apr 13 '17 at 12:34

Community

1

answered Jul 13 '11 at 02:17

sophia

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score 0 · Answer 2 · answered Sep 09 '14 at 22:10

Have you tried GPSBabel? http://werc.engr.uaf.edu/~ken/doc/gpsbabel/htmldoc-1.3.5/filter_interpolate.html

gpsbabel -i gpx -f track.gpx -x interpolate,time=10 -o gpx -F newtrack.gpx
gpsbabel -i gpx -f track.gpx -x interpolate,distance=1k -o gpx -F newtrack.gpx

Point interpolation in route

2 Answers2