migration lines with directions

[GoogleCodeExporter]

The generated KML graphs may get cluttered. Adding arrows to the end of line 
segments may improve a little, representing lines as >>>>>>>>>>> may improve a 
lot. 

KML lines only allow a core and outer color: 
https://developers.google.com/kml/documentation/kmlreference?hl=nl#linestyle

Open Layers allows dashed and dotted lines: 
http://dev.openlayers.org/releases/OpenLayers-2.8/doc/apidocs/files/OpenLayers/F
eature/Vector-js.html#OpenLayers.Feature.Vector.OpenLayers.Feature.Vector.style

Still not what we need though dotted lines may result in more blending effects 
than just transparency.

Original issue reported on code.google.com by jo3....@gmail.com on 3 Mar 2013 at 3:56

[GoogleCodeExporter]

Markers per place with the smallest sosa number could be a compromise as shown 
for example on http://www.mapyourancestors.com/ With just two digits that would 
be limited to 7 generations. For google maps it would mean anyhow managing 100 
images what goes way beyond the purpose of this library. 

Original comment by jo3....@gmail.com on 23 Mar 2013 at 9:35

• Changed state: New