3.1.1 CalTopo mission overlay data type

[jamus2013]

• [x] Experiment with CalTopo shapes (routes, polygons, etc)
• [x] Observe import/export process, syntax
• [x] Compare different import/export formats [GPX, KML, geoJSON, etc.]
• [x] Determine optimal format for automation
• [x] Local Python library(s) that may help with selected format(s)

[jamus2013]

CalTopo export:

• GPX "track" appears to preserve object attributes (e.g. color) whereas "route" does not
• GPX "track" does not preserve line style
• geoJSON has all the line and marker styles with folder heirarchy