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Contour Maps

Question asked by betz1975 on Oct 21, 2015

Hi there,


I'm new to GIS developing and i'm trying to work with the JS frameworks to create different layers.


For now, I want to create a contour map which will show values of data I have instead of altitude/heights.

My question is , how do I generate:

1.  KML to show contour map or a service which can provide the data?

2.  How to build the file based on the values I have? lets say I have different coordinates which represent a cell on the map and each cell has it's value, How do generate the rings , their location , size and distance between each ring for the contour map?