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Rotation Angle to magnetic north

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04-08-2013 12:02 AM
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StanleyHo
Deactivated User
Hi,

I was wondering if it is possible to get the rotation angle of the polygon  to magnetic (true) north.

thanks
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DominiqueBroux
Esri Frequent Contributor
Magnetic North is dépendent on your location and on the date.

The NGDC provides a service returning this value: http://www.ngdc.noaa.gov/geomag-web/calculators/declinationHelp

For example in PDF or in XML.

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DominiqueBroux
Esri Frequent Contributor
Magnetic North is dépendent on your location and on the date.

The NGDC provides a service returning this value: http://www.ngdc.noaa.gov/geomag-web/calculators/declinationHelp

For example in PDF or in XML.
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StanleyHo
Deactivated User
thanks for the reply.

I will look into it
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