TRY AGAIN
I can't tell you how to map, as I have not gotten that far. I can give you
some info that may help. For mapping in .NET, there is a C# mapping project
(open source) called SharpMap:
http://www.codeplex.com/Wiki/View.as...tName=SharpMap
THere is also GehtSoft GIS (open source)
http://sourceforge.net/projects/gsgeotools
For the United States, mapping is generally done off of TIGR data, which is
downloadable from the Census site (census.gov). It is a pain to download, to
an extent, because there is no all in one download. It is GBs of data.
Download a sample and go from there.
http://arcdata.esri.com/data/tiger20...r_download.cfm
There is also an open consortium of GIS mapping that has some good info.
https://www.osgeo.org/
Zip code data is for sale. While you can put together United States and
Canadian zip codes by searching sites, it takes quite a long time to do and
is only useful if your time is not worth anything. At work, we currently
purchase US & Canada from Zipcodedownload .com. It is decent data and has a
good price for a yearly subscription. This is NOT mapping data, however.
Newer maps than the Census cost lots of money. There are basically two
companies that have data: NavTeq and TeleAtlas. Both price according to the
type of application and tend to request monthly revenue streams for the
data. It is worth it if you need accuracy on roads, etc., but not for a
simple "find the zipcode" type app (TIGR should be fine for this).
Hope this helps!
--
Gregory A. Beamer
MVP; MCP: +I, SE, SD, DBA
*************** *************** *************** ****
Think outside of the box!
*************** *************** *************** ****
"ThunderMus ic" <NO.danlat.at.h otmail.com.SPAM wrote in message
news:Oc******** ******@TK2MSFTN GP03.phx.gbl...
Hi,
I'd need to find (or develop) a control of a map (worldwide if possible)
where a user can click and drag to select an area by distance from the
click point or using a square area (user's choice)... This control would
return the postal/zip codes of the selected rectangle or the clicked point
postal/zip code and the wanted distance range. Is it something that can be
done in a web control? it's absolutely something easy (well, fairly easy)
in a windows forms app, but how is it in web forms? I would probably have
to use Atlas.... Is it something I can do using Javascript? will I have to
make an ActiveX for it?
Thanks
ThunderMusic
btw... I'd be interested in having some links to where I can find
databases on worldwide postal/zip...