Thematic maps?

Is it possible to build thematic maps using the virtual Earth SDK For example making regions different colours based on their population density.

Thanks,

Andrew



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Thematic maps?

  • Jay433882

    Of course it is possible (well at least with the new API). See http://showcase.sharpgis.net/ve for an example.


  • Andrey Makarov

    Static is not thematic !

    Of course it is. Thematic maps hasn't got anything to do with whether the data is dynamic or static. It's just about showing a "theme" like the example I mentioned earlier - the theme there was showing population density, which makes it thematic.


  • Hedgeh0g

    As far as i know , making your own polygon object is quiet possible in Mappoint too. we've got a geomapping tool based on mappoint to go to census track territory definition with data . But Mappoint is NOT AT ALL based on the samed technology .. I think the best way to make a thematic map (with point or polygon) i to upload a Georss file and make a code to affect color / icon sizing to items per ID..
    Thinking that VE maybe very slow in that way in that way

  • Uli F

    True but by generating static tiles to represent the layer it becomes faster and more scalable then map point can ever be. While map point in generating every request on the fly VE is simply serving up image tiles.
    John.


  • PeterVrenken

    Hi... seams to be a serious discussion!
    Hackersoft is surely right, you can solve this problem easily with MapPoint.
    However I (!) think that tonito is NOT wrong, cause the VE team should provide this possibility also for its AJAX APIs – maybe they are already working on it for v4 :-D
    A straightforward approach could be to implement a polygon object as it was done for the polyline (with and array of LatLong objects) and adding two properties like color and alpha-channel. That would be a possibility to highlight a territory, for whom who knows the coordinates along the borderline.

  • ChrisCo

    Actually, it's not possible to solve this easily in MapPoint. It is if you want to use known boundaries such as counties or some such, but if you want finer grained control or to create a grid then you quickly find MapPoint falls short.

    Indeed it may even be easier to solve this problem using the new Polygon objects in Virtual Earth and some manual calculations, but it probably won't be quick.


  • Greg Rotman

    Morten Nielsen wrote:

    Of course it is possible (well at least with the new API). See http://showcase.sharpgis.net/ve for an example.

    See that right there is a task that is easy in MapPoint as the boundaries are already defined in the application. However for example if you had point data with the location of every person and you wanted population density for every 100m cell of a grid covering an entire country you would find that this is beyond the functionality of MapPoint.


  • AlexBB

    This isn't the realm of virtual earth but is exactly what Mappoint does.

    Take a look at :-

    http://www.microsoft.com/mappoint/default.mspx

    Colin Brown
    MSN MVP



  • ALZDBA

    Static tile should be a solution (if you have a IIS server...) but static is not thematic .. if you implement a thematic map solution, your user have to expect a minimum interactive with serial statistic mapping (class , color etc ..) not be very helpful with static tile ...

  • JosepMola

    What kind of response is this mappoint is NOT AT ALL a comparative product with VE .. I think that we need a minimum technical serious before to say "oh nono , go to the next gate " Mappoint is not a web product , so we don't speak about the same technology ..

  • chandu_sanka

    Thematic map is not only colors-on-polygon, it's a result of a statistic analysis . Most of cartographic solutions offers build-in functions to hands a minimum statistics tools by users (discretization of series...for example) so users needs dynamic tools for ,at list, make a simple thematic map .. not only showing a result ..

  • Hayd3n

    I think I may have come up with a solution where everything is calculated locally which results in a png being generated and theis being overlayed on a map using MapCruncher. This has the added bonus of requiring the minimum amount of transactions.
  • Harri Pesonen

    Tiles with sharpgis seems to be more like a trick than a real build-in thematic solution .. need other server ... meanwhile there is no real support for polygon / polyline layer in VE !

  • Thomas Israelsen

    Hi Colin, thanks or the answer. I figured as much but thought it worth asking anyway. The reason I asked is I saw how Google Maps is able to offer this through using KML markup and was kinda hoping Virtual Earth could do the same. Nevermind I will continue my pursuit for the most inexpensive solution.

    Cheers,

    Andrew


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