On 10/09/2009, Miki <[email protected]> wrote: > > My database stores records in one of three formats. NAD27, NAD83 and > WGS84. According to the following post (http://groups.google.com/ > group/Google-Maps-API/browse_thread/thread/41d45dc53f208f39/ > c87810319e7d590b?q=nad27&rnum=2), NAD83 and WGS84 are essentially > interchangeable, however NAD27 is not. > > NADCON http://www.ngs.noaa.gov/TOOLS/Nadcon/Nadcon.html has an > executable and an http page that will perform conversions, however it > doesn't seem to have a web service, nor does it inform the reader of > the algorithm for the conversion. > > Roughly .02% of my data is in NAD27 format, but it's pretty important > to my client to map these data if at all possible. So, my question > is: > > 1) does google maps api offer a converter somewhere within the geocode > function (or heck, anywhere else really)
no. Google have no function that does this. > 2) is anybody aware of a web service, javascript, java, .net or > coldfusion object that i can use to do this conversion? Checkout proj4. There is a Javascript version :) http://proj4js.org/ > 3)does anybody know the actual alogorithm used by NADCON to convert > NAD27 to NAD83? I beleive my head would explode if tried to figure that out... > > (the questions are mutually exclusive) > > > > -- Barry - www.nearby.org.uk - www.geograph.org.uk - --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Maps API" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/google-maps-api?hl=en -~----------~----~----~----~------~----~------~--~---
