Colorizing areas based on distance from specific point

[n babb]

Good Afternoon Everyone,

 

I am trying to build colorized polygon layers that will be based on a specific transit time from a fixed location. Is there an easier way than hand drawing the polygons?

 

Any help would be awesome.

 

Thanks

[coolbawn]

On Monday, March 25, 2013 4:58:13 PM UTC, n babb wrote:

I may be misunderstanding your problem, but it should be easy, in whatever programming language you use to generate your KML, to specify a polygon's polystyle fill color depending on the distance from the point.

See https://developers.google.com/kml/documentation/kmlreference#fill 

If you have, say, 5 distance categories eg < 5km, 5-10, 10-20, 20-50 and >50, have a polystyle for each like

<Style id="Poly_5">
<PolyStyle>
  <color>ff0000cc</color>
</PolyStyle>
</Style>

 <Style id="Poly_10">
<PolyStyle>
  <color>ff0000dd</color>
</PolyStyle>
</Style>

and when you generate the polygon placemark, start with:

<Placemark>
  <name>xx</name>
  <styleUrl>#Poly_10</styleUrl> or  <styleUrl>#Poly_5</styleUrl> 

Sorry if I misunderstood you.