Author Topic: x and Y coordinates  (Read 720 times)

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Offline NOLA

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x and Y coordinates
« on: January 14, 2009, 08:26:17 AM »
Looking on a map and the coordinates are in x and y coordinates
is there an easy way to convert to any other coordinates
as in degrees ?
"Non sibi sed patriae" (Not self but country) U S Navy 1962-1966 ATR E-5

Offline Siskiyou

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Re: x and Y coordinates
« Reply #1 on: January 14, 2009, 04:55:21 PM »

You have a couple of tools at hand besides the links I provided you.

You can use your gps to change formats and return to the original if you want.

Main Menu>Units>Position Format> scroll until you find the format you need and then select it.  It will change the format on all your Waypoints.  If you want to return them to the original format just follow the path and select the original format.

You can do the same thing using Map Source.  Edit>Preferences>Position>Grid.  Click on the check mark and scroll unit you find the x/y coordinates system you want.

Here are a few links to LAT/LONG  Converters and LAT?LONG/UTM converter

http://gis.wvdep.org/convert/llutm_conus.php

http://www.cellspark.com/UTM.html

http://www.rcn.montana.edu/resources/tools/coordinates.aspx

Hopefully I understood the question correctly?





There is a learning process to effectively using a gps.  Do not throw your compass and map away!

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Offline bilmac

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Re: x and Y coordinates
« Reply #2 on: January 14, 2009, 05:48:11 PM »
I expect what you are talking about are Universal Transverse Mercator grids that the military uses. This is a grid system based on a metric grid. You should learn to use it and forget about Lat and Long. This is because degrees of longitude are indefinate, they have no fixed size, they change depending on your latitude. The last digit of either north or east of a UTM coordinate represents 1 meter. The next to the last represents 10 meters and so on.

Because there is a definate value to these numbers, I was able to scale off a distance and direction on a map from my ice house to a little underwater hilltop, and then convert those numbers into a UTM grid and then use my GPS to get very close . There is no way I could have done that using  Lat and Long.