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mathteacher
@mathteacher
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Noble Member
Joined: Jun 15, 2013
Topics: 151 / Replies: 1930
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RE: Connection between GPS coordinates and local coordinates.

Be careful here. Are the coordinates that you gave us UTM or local coordinates? If the coordinates are UTM and the bearing and distance are on a local...

1 month ago
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RE: Scale Factor

"But the advantage with the DOT method is that you can easily import-export data into your programs. All you need to do is have the one scale factor a...

1 month ago
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RE: Scale Factor

Learning the underlying math is relatively easy when one has a lot of free time, but applying this stuff in the field under time and terrain pressures...

1 month ago
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RE: Scale Factor

I couldn't agree more, but there are at least a dozen equivalent processes that work, too. And the thing that makes them work, and also makes them equ...

1 month ago
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RE: Scale Factor

You're describing process, not defining DAF. That's like saying that to create carbon dioxide, mix vinegar and baking soda. The process works but why ...

1 month ago
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RE: Scale Factor

See, here's where we're missing each other. Each point has a combined factor and each point has a DAF as well. This DAF should be the reciprocal of th...

1 month ago
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RE: Scale Factor

I think tha tin your example, you compared a ground distance to a grid distance. If I take your state plane distance of 3711.92 a multiply it by your ...

1 month ago
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RE: Scale Factor

Yes, but the theory is the same. Isn't the DAF derived from the combined factor? How can you say that the DAF is a more accurate adjustment than the c...

1 month ago
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RE: Scale Factor

You have to use the same factor in both calculations.

1 month ago
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RE: Scale Factor

I would argue that the DAF is applied to distances. When you inverse, between two ground coordinates, you are using grid coordinates adjusted by the D...

1 month ago
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RE: Scale Factor

It's as bad as it gets, Moe. I'm a hundred miles or so from the mountains and got only moderately heavy rain and wind, but a lot of my favorite fall d...

1 month ago
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RE: Scale Factor

NGS-published combined factors transform a ground distance into a grid distance by multiplication. It follows that a grid distance can be converted to...

1 month ago
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RE: Scale Factor

LOL! Thanks, Moe! You know that I'm just an old contrarian and mean no harm.

1 month ago
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RE: Scale Factor

The second paragraph says that it's a combined factor. A rose by any other name ,,,,

1 month ago
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RE: Scale Factor

Any factor that converts grid distances to ground distances is a combined factor.

1 month ago
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