Overlaying polyLines to make flight paths on google markers
These are lines joining a seried of points on a map. You can have multiple flightPaths on a map, specified by the parameter flightGroup as defined below.
This is accomplished through data specifiying a flightGroup in your data record. The geoCoding parameter sheet defines the column name in which to find the flightGroup. A flightGroup can be named anything you want. Markers with the same flightGroup name will be connected by a line. In this case I happen to be using the same data column as I used for Quicklinks and Categories but you can add a sepcific column if you want to.
How to specify flightPath colors
Just as in Overlaying circles and heatmaps the color to use is picked up from a data column associated with the flightColor parameter. Note that in this case I am using the same color for both the circle and the flightPath. Since it is conceivable that multiple colors will appear for data items in the same flightGroup, then the color of the last item in the flightPath is used for all tems the flightGroup. If no flightColor is given, but a flightGroup is specified thens ome suitable default will be used.
Changing the properties of the flightPath
strokeWeight: 2 ,
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