[OpenLayers-Dev] To what extent does openlayers provide functionality?

[jowharshamshiri]

Hello guys,
We are implementing a GIS system. It is in the primary phase right now so
we're actually deciding on what software to use. One requirement that the
project has is that users should be able to generate new map layers based on
statistical data provided to them. Take this simple case for example, A user
is seeing the map of a country with the cities designated by points. Upon
clicking these points they are provided with, say, the population of that
city. Now the user wants an image created in which there are no cities
specified by points, rather the focal points of the population shown using
different colors. An area in which cities have more population should have a
certain color and so on. These colors would fade into each other to create
an image of the map of the country. 

How do you think should this functionality be implemented?
Is open layers capable of providing such functionality?
Is it feasible in terms of performance to provide such functionality?

Thanks in advance,
Bahram
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