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| GeoCommunity Mailing List |
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| Mailing List Archives |
| Subject: | RE: GISList: Shapefiles shift, geographic analysis or data inter-
conversion cause data loss |
| Date: |
08/18/2003 06:30:01 AM |
| From: |
Shyam Sunder Pasumarthi |
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Hi,
PC Arc Info is single precision and remaining all other products are double
precision. If you use Auto Cad 2k, NT Arc Info and Arc View then there
should not be any shift in the data.
Shyam
> -----Original Message-----
> From: Mohammad Ishfaq [SMTP:ishfaq@mailingbox.net]
> Sent: Tuesday, August 05, 2003 7:50 PM
> To: gislist@geocomm.com
> Subject: GISList: Shapefiles shift, geographic analysis or data
> inter-conversion cause data loss
>
> Hi all,
> First of all I am sorry if I am cross posting this question but I have
> searched the user foram and could not found a proper solution to this
> problem. I am working on win2k platform with ArcGIS 8.2, ArcView 3.1, PC
> ArcInfo and AutoCAD 2k installed on my PC. I face a problem whenever I
> perform different geographic analyses like clip, union, intersect or
> dissolve or go for conversion between different data formats like from
> shapefile to AutoCAD dxf or shapefile to ArcInfo coverage, I get a
> resultant shapefile that has a very minor overlay problem with the
> original data source i.e., there is a shift in the resultant and original
> shapefile boundaries from one to five centimeters. So, I wanted to ask if
> there is any way we could resolve this data discrepancy? I will sum up at
> the end.
>
> Regards
>
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