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luca2015

Heightmaps with raster data

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Hi all

I'm new to this forum and this is m first question.

I've downloaded some tile data from http://srtm.csi.cgiar.org/ (in geotiff format) and process it on a little c++ program in order to visualize it

on a opengl scene and it works.

The problem is that in cgiar site i can obtain only dem data (only elevation data) and i need to have other "layers" other than elevation data, such as data on roads, vegetation distribution and so on (possibly georeferenced or at least geographically referencable by some procedure programmatically)

1) Is there any other site where i can download these information at same detail (90 m) of dem data that cgiar offer to public?

2) Is there some article, tutorial avantually how to combine these files into only one in order to obtain, for example, a geotiff with more rasterband

   where each rasterband represent the informative layer (for example: band 1->elevation data, band2->forest data and so on).

Any help will be appreciated.

Luca

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con i obtain from openstreetmaps.org vector data? I ask for some tecnique in order to how to combine vector and raster data.

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con i obtain from openstreetmaps.org vector data?
It's xml in terms of geo locations, so I would expect it to be vector oriented. Specs are at the site.

 

I ask for some tecnique in order to how to combine vector and raster data.
I was just answering the first question somewhat "... i need to have other "layers" other than elevation data, such as data on roads, ..." which linked to openstreetmaps in my mind.

 

I have no clue about many of the words that you use at all, between you and me, you are definitely the expert here.

You may want to ask about this in more geo-data oriented site; real-world geo mapping isn't a typical concept you find a lot in games. As a result, the number of knowledgeable people here may be less high than you hope/expect.

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