[Freegis-list] Looking for software to display gis street data and orthophotos

[Bernhard Reiter]

On Thu, Jan 20, 2005 at 11:38:45AM +0100, Scalar wrote:
> I am looking for a software that can display display gis (street, maybe
> elevation...) data and orthophotos at the same time and can layer gis data
> on top of the orthophotos. It should be a software that runs on a server
> and can be viewed with a normal browser.

The conservative choice of Free Software for this is mapserver.
It can display raster and vector on top.

> Is there a software where one can dynamically add points to the maps
> through a browser interface?

There are several ways to add points with mapserver.
One example is demoed here:
http://demo.intevation.de/webgis/anwendungen/digit/html

> One more question: How much free GIS data is there? i read something about
> freegis data on a webpage, but to me it seems very expensive to generate
> the data so I was not sure.

There is a lot of data in total, 
but in practice this will always be an issue.
Because many interesting application need street level vector data
with nice attributes.

For the US there is the Tiger set from Census, not perfect, but a
very nice start. In Germany there is only free data for two bigger
cities: Berlin (part of bbbike) and Osnabrück (http://frida.intevation.org/).

Best,
	Bernhard

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