Further to Mike's comments, you can edit the projection/datum information in an existing ECW file with the "ECW Header Editor", which you can download from www.ermapper.com.
regards -- Simon ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Simon Cope, : e-mail: [EMAIL PROTECTED] Chief Technical Officer - : WWW: http://www.ermapper.com Internet Technologies, : Int'l Phone: +61 8 9388 2900 Earth Resource Mapping Pty Ltd, : Int'l Fax: +61 8 9388 2901 Level 2, 87 Colin St, West Perth. : Australia Phone: (08) 9388 2900 Western Australia 6005 : Australia Fax: (08) 9388 2901 Q: 1.2TB (1,200GB) Image over the Internet? A: Image Web Server! http://www.earthetc.com > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of Mike Dunne > Sent: Wednesday, 24 July 2002 11:24 AM > To: [EMAIL PROTECTED] > Subject: RE: the Geographique Projection database > > > Hi, > It looks like your ECW file has a RAW projection - > this means that it does not have any lat/long or Easting/Northing > information in it. You can only do coordinate conversions etc on > file that are not RAW, because there is not conversion function. > You will need to register your ECW files. This usually means that > they need to be rectified using ER Mapper (this step is usually done > before compressing the data). > > Hope this helps. > cheers > Mike > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED]]On Behalf Of ricoh starter > > Sent: Tuesday, 23 July 2002 8:37 PM > > To: [EMAIL PROTECTED] > > Subject: the Geographique Projection database > > > > > > Hello, > > > > Am tryin to include a function like in the sample15.htm > > of ermapper, to show lattitude and longitude of a point on > > a ecw photo by clickin on it. > > So as a test I took the code of the sample and I changed > > only the image, but I got an error message: > > "coordinate conversion failed" > > Unknown map projection > > could not setup coordinate system to perform the conversion > > to lat/long.This is due to the Geographic Projection > > Database being unable to locate the appropriate data for > > the projection RAW. > > How can I customize that sample to test it with my own ecw > > photos? > > Do I have to create a database of coordinates ? > > > > Thanx for any answer > > > > Tony, France > > ______________________________________________________ > > Bo�te aux lettres - Caramail - http://www.caramail.com > > > > > > ----------------------------------------------------------- > > To make changes to your subscription, please visit our website, >http://www.ermapper.com/technicl/ermapperl/index.htm > > ----------------------------------------------------------- To make changes to your subscription, please visit our website, http://www.ermapper.com/technicl/ermapperl/index.htm
