converting WGS 84 to MTM 3 Degree

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12-22-2010 10:04 AM
JesseRedditt
New Contributor
I'm having trouble getting data from my GPS unit in WGS 84 to show up correctly when I change the projection to MTM 3 Degree.  Do I need to change the projection more than once before it's correct?  I'm also not sure of the transformation I need to use (if that's the problem), I'm displaying data in Toronto
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MelitaKennedy
Esri Notable Contributor
I'm having trouble getting data from my GPS unit in WGS 84 to show up correctly when I change the projection to MTM 3 Degree.  Do I need to change the projection more than once before it's correct?  I'm also not sure of the transformation I need to use (if that's the problem), I'm displaying data in Toronto


I think what you should do is leave the data defined as WGS84. Then use the Project tool to create a new dataset in MTM, or let ArcMap project it on the fly (in memory).

Melita
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JesseRedditt
New Contributor
When I project the data into MTM what is the transformation I should use?  It's data in Toronto
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