Take three of the mis-stamped caps to Ebay. Hawk them as rare, mis-stamped survey caps from (date and place.) Beautifully finished and in excellent co...

@tnt Those walls perpendicular to the coast are called groins and they have a very different purpose than seawalls. They're used to prevent sand fr...

That's a nice piece of work, Scott. You've always had my endorsement (surely not worth much) for fine geodetic work, but maybe one from CjatGPT is wor...

Correction: 1.0148794/2.54/12 = 0.03286 International ft/mile should be 1.0148794/2.54/12 = 0.033286 International ft/mile

Correction: 1.0148794/2.54/12 = 0.03286 International ft/mile should be 1.0148794/2.54/12 = 0.033286 International ft/mile

@sluggo Kinda right, but by using 0.008, you've converted your answer from millimeters to meters. 8*sqrt(1.609344) = 10.148794 mm. (1 mile is 1.6...

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...

"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...

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...

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...

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 ...

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...

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 ...

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...

You have to use the same factor in both calculations.

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...

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...

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

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

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