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big-al
@big-al
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Joined: November 2, 2010 12:11 pm
Topics: 86 / Replies: 737
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RE: Grid vs. Ground, again

Sounds like they scaled the coordinates from 0,0. In the example I used above, you'll notice a difference of about 50 feet in the northing. With more ...

11 years ago
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RE: Cellular RTK suggestions

I bought a SIM card from TMobile after I had been told by them it would work on a prepaid basis at a cost of 1-2$ per day, only on days used. Then I g...

11 years ago
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RE: Grid vs. Ground, again

I just want to say thanks to all of you who posted on this topic. This forum is truly an amazing resource.

11 years ago
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RE: Grid vs. Ground, again

OK, now I see where you're coming from. Thanks for all the help.

11 years ago
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RE: Grid vs. Ground, again

> No I don't mean that. What I do mean is to stay on state plane for everything. > > If the "error" is small enough then it really shouldn't ...

11 years ago
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RE: Grid vs. Ground, again

Absolutely, a great question. One that derives from a requirement of the DOT here, and the need/want of GIS folks to be able to incorporate projects ...

11 years ago
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RE: Grid vs. Ground, again

> I get nervous about scaling CAD drawings. particularly 3D CAD drawings, because it will eff up the elevations by said scale factor (unless there ...

11 years ago
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RE: Grid vs. Ground, again

OK, then, so I think you're suggesting that where the project size is small and where the combined scale factor is negligible, that it might be approp...

11 years ago
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RE: Grid vs. Ground, again

> It does look correct, but look at the numbers. The scale factor is quite small. > > I'd really consider just using state plane on this proj...

11 years ago
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RE: Grid vs. Ground, again

OK, Moe, so here's an example. I just want to make sure I understand the method that you're using for your DOT projects:I've got a nail in the ground...

11 years ago
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RE: Grid vs. Ground, again

Big AlOK, that's what I was thinking. Thanks, Loyal.Interesting to me is that you write about the scale factor being used to convert a DISTANCE from ...

11 years ago
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RE: Grid vs. Ground, again

Earl,I've read your paper #20 in the past, and it is very interesting. My hesitancy with it is that I have an impression that the equipment that I ha...

11 years ago
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RE: Grid vs. Ground, again

> It doesn't sound like the engineer cares about geodetic coordinates anyway (or am I wrong?)I think he's used to working with ground coordinates, ...

11 years ago
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RE: Grid vs. Ground, again

I'm willing to consider a low distortion projection for this project. Can someone suggest a good resource explaining how to do it?

11 years ago
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RE: Grid vs. Ground, again

> The DOT's I work with all use the same conversion system. > > All coordinates for a project are done using surface coordinates and are calc...

11 years ago
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Replies: 55
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RE: Interesting Ebay Auction ... (Maybe Stolen)

Yup, I agree. The ring he wears in the photos doesn't look like a ring a surveyor would wear. And his username is weird too. myamimoney.So, let's s...

11 years ago
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RE: Cellular RTK suggestions

I've been working on getting set up with a GSM internet connection on my Allegro CX, and it's been really difficult to get real information from AT&am...

11 years ago
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RE: Interesting Ebay Auction ... (Maybe Stolen)

Looks maybe stolen to me too. The photo you reference showing the finger over the serial number - that was done on purpose to hide the serial number....

11 years ago
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RE: Best radio for Topcon Hipers ?

Well, I just ordered this setup.

11 years ago
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