Four color map

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04-18-2012 08:00 AM
Status: Open
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Miguel_AngelMacias_Roldan
New Contributor II

Please consider including a tool to symbolize polygon according to the four colortheorem. It would be very useful to represent layers with polygons where is distinctly different limits.

5 Comments
JerryChase2

I have used a VBA sample years ago in ArcMap 9.?. I sure could use something like it again.

See: Four Color Map 

JohnMDye

I'm probably not getting it, but can't you do this already using unique symbology and color ramps? You just need to create a four-color color ramp, or am I mistaken.

JerryChase2

Example of a "four color map."In mathematics, the four color theorem, or the four color map theorem, states that, given any separation of a plane into contiguous regions, producing a figure called a map, no more than four colors are required to color the regions of the map so that no two adjacent regions have the same color. I hope this helps as an explanation. 

JohnMDye

Makes a lot more sense now. Thanks

JerryChase2

Here is a Five (5) Color Map solution which has worked for me: https://www.arcgis.com/home/item.html?id=5fa04ce288284c999f70464e1c3b2e82 just in case someone else needs something now.