Hi everyone, id really appreciate some help understanding how to place the data in these shape files onto the ArcGIS control. The values are in utm but the ArcGIS control with Bing Imagery uses Web Mercator (i assume these are not the same?)
Also, is there some form of way of placing objects over the map without using a canvas?
Thanks in Advance!
There might a better way but I did the same kind of thing in my current project by using the geometry service.
The service has a Project method that accepts list of graphics that needs to be projects along with in spatial reference and out spatial reference.
From your first post, the coordinates are in UTM. In this case GeographicToWebMercator doesn't help and the only option is the geometry server (or to write by yourself the conversion code at the client side)
There is a sample on how to use a geometry server for projecting coordinates : http://help.arcgis.com/en/webapi/silverlight/samples/start.htm#Project
But, if your coordinates are geographical, you should not need a geometry server. 'GeographicToWebMercator' should work.
Try debugging the input and the output values of GeographicWebMercator. This could give a clue.
For example, it might happen that the coordinates are reversed (Latitude/Longitude instead of Longitude/Latitude).
well thats the method im using for converting the values and it still seems to give me offset results. The shape and topology of the vectors are correct but they do not "align" well with the imagery which gives me the impression i am doing something wrong in terms of a projection.
Could someone do me a huge favor and confirm for me whether the coordinates used in the TIGER files are geographic coordinates? Are they stored under some projection that i am no aware of? ( i cant seem to find a .prj file with the shape files so i assumed they were unprojected)
If its of any help you have to DEFINE a projection to the Tiger files before using them.