[OpenLayers-Users] ANN: gpxanim

[Rodney Lorrimar]

Hello OpenLayers Users,

I have made a little script called gpxanim creates animated maps from
GPX tracks. Its purpose is for making map movies which can be used in
video productions.

It will plot the track as a line and rotate the map so that the
direction of travel is always "up". The track is interpolated to achieve
smooth animation.

Here is an example of its output: http://youtu.be/7-tOJGSVWkc

How it works

1. There are two components of gpxanim: a python script which controls
   the process, and a javascript module which updates the animation each
   frame.

2. It uses OpenLayers to render the map tiles and GPX track. The
   map div is rotated with CSS.

3. WebKitGTK runs a small web page containing the map widget.

4. Every frame, a screenshot is captured of the map and fed into a
   GStreamer pipeline which creates an Ogg Theora video file.


The code's not pretty or fast but it works. There are a few options but
you will most probably need to modify it to suit your needs.

More details and the code are here:

  https://github.com/rodneythellama/gpxanim


Cheers,

Rodney