http://tech.groups.yahoo.com/group/wcsml/ 3D Nature Fri, 06 Nov 2009 23:36:36 GMT tim_mcbroome http://tech.groups.yahoo.com/group/wcsml/message/34352 http://tech.groups.yahoo.com/group/wcsml/message/34352 That appears to have been the issue. Fri, 06 Nov 2009 23:00:46 GMT tim_mcbroome http://tech.groups.yahoo.com/group/wcsml/message/34351 http://tech.groups.yahoo.com/group/wcsml/message/34351 So I was typeing this message out and the obvious occured to me. That is a hillshade file which I do not believe is the same as as standard GRID file, so far Fri, 06 Nov 2009 22:32:39 GMT tim_mcbroome http://tech.groups.yahoo.com/group/wcsml/message/34350 http://tech.groups.yahoo.com/group/wcsml/message/34350 Uploading the source file now. It is called hillsha_btde2.zip Fri, 06 Nov 2009 22:10:35 GMT Chris 'Xenon' Hanson http://tech.groups.yahoo.com/group/wcsml/message/34349 http://tech.groups.yahoo.com/group/wcsml/message/34349 ... Possibly. Is it something you could ZIP and send to out FTP server (files.3dnature.com) for us to look at? Have you checked if anything else can read the Fri, 06 Nov 2009 22:03:51 GMT tim_mcbroome http://tech.groups.yahoo.com/group/wcsml/message/34348 http://tech.groups.yahoo.com/group/wcsml/message/34348 Yes to ArcGIS, yes I ArcGrid and the ARC ASCII file is what just crashed VNS. Perhaps ESRI changed some formatting with 9.3 service pack 1? As a quick aside, I Fri, 06 Nov 2009 21:56:39 GMT Chris 'Xenon' Hanson http://tech.groups.yahoo.com/group/wcsml/message/34347 http://tech.groups.yahoo.com/group/wcsml/message/34347 ... Ok. I don't think you've said yet exactly what format we're talking about, and though you haven't yet answered it, I'm assuming you're using ArcGIS? I Fri, 06 Nov 2009 21:53:32 GMT tim_mcbroome http://tech.groups.yahoo.com/group/wcsml/message/34346 http://tech.groups.yahoo.com/group/wcsml/message/34346 ESRI 9.3, ArcCatalog to be specific. I had meant to type 16-bit. I agree about focusing on the source data and always attempt to do so. In this case it has not Fri, 06 Nov 2009 21:51:42 GMT tim_mcbroome http://tech.groups.yahoo.com/group/wcsml/message/34345 http://tech.groups.yahoo.com/group/wcsml/message/34345 Because it failed to load, I would recieve "Please contact 3D Nature. This file can't be decoded properly at this time". I had created another 16-bit version Fri, 06 Nov 2009 21:49:47 GMT Chris 'Xenon' Hanson http://tech.groups.yahoo.com/group/wcsml/message/34344 http://tech.groups.yahoo.com/group/wcsml/message/34344 ... What tool are you doing all this GIS work in? ... Um, what do you mean 1-bit? It seems like you're taking a lot of false paths that are distracting us and Fri, 06 Nov 2009 21:42:41 GMT Chris 'Xenon' Hanson http://tech.groups.yahoo.com/group/wcsml/message/34343 http://tech.groups.yahoo.com/group/wcsml/message/34343 ... Why? What format? VNS can normally read a 16-bit grid file from many formats. Try to avoid too much dinking with your data, for there creeps in the Fri, 06 Nov 2009 21:40:17 GMT tim_mcbroome http://tech.groups.yahoo.com/group/wcsml/message/34342 http://tech.groups.yahoo.com/group/wcsml/message/34342 True it does only specify the LINEAR unit and that is why I have tried both Survey Feet and Meter. I am at a loss as to how to cull the high and low elevations Fri, 06 Nov 2009 21:20:37 GMT Scott Cherba http://tech.groups.yahoo.com/group/wcsml/message/34341 http://tech.groups.yahoo.com/group/wcsml/message/34341 Sometimes it's easier to correct the problem in VNS than try to figure out what's wrong with the original data. One of the Import Wizard pages allows you to Fri, 06 Nov 2009 21:15:44 GMT tim_mcbroome http://tech.groups.yahoo.com/group/wcsml/message/34340 http://tech.groups.yahoo.com/group/wcsml/message/34340 Some background info: The source is a 16-bit grid file that I exported to an 8-bit grid file so that VNS could load it. Fri, 06 Nov 2009 21:13:12 GMT Chris 'Xenon' Hanson http://tech.groups.yahoo.com/group/wcsml/message/34339 http://tech.groups.yahoo.com/group/wcsml/message/34339 ... Keep in mind the projection file usually only specifies the HORIZONTAL units that the projection coordinates are measured in. It makes no statement about Fri, 06 Nov 2009 21:02:07 GMT tim_mcbroome http://tech.groups.yahoo.com/group/wcsml/message/34338 http://tech.groups.yahoo.com/group/wcsml/message/34338 Thanks, yes I have actually already tried a mix of units. It should be meters according to my projection file but I tried feet as well just to see what the