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Hi Melita, I will have a look at the forward/inverse conversions. A test point is shown below (TM0); x - 549299.1200 y - 6794068.3100 Thanks, Richard
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10-15-2013
01:04 AM
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Hi Melitta, Yes that is correct about the central Meridians and no to the distance from the central Meridian (only a couple of degrees). The issue is in fact not with ESRI software but another package that gives an error of approximately 1.9m in the x compared with ESRI and other software packages. I was keen to understand how an error may occur with such a simple transformation. My guess is they have their parameters incorrectly set-up for TM0 in some way. I have raised this issue with the other company and they flat out deny any issue. Could I have the equation that ESRI uses to do the conversion? Thanks, Richard
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10-09-2013
11:57 PM
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I have had a similar issue with imagery data when exporting to pdf. However it leaves a blank square.
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10-09-2013
07:30 AM
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Hi Jim, Thanks very much for your response. That is what I thought however the difference I got in the x with one piece of software still puzzles me. I will contact Melita just to be certain as it a transformation we need to be accurately done. Do you know how I would contact her? Thanks, Richard
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10-09-2013
07:11 AM
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Hi, I have recently been tasked with understanding how different pieces of software have managed to give variations on the x value when converted between the above CRS. The ED50 TM 0 CRS was customized by an oil and gas operator specifically for the North sea. The only difference between the two projections are the central Meridian. I was wondering what sort of error I should expect transforming between the two and how ArcGIS performs the transformation? Thanks, Richard
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10-08-2013
11:50 PM
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