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shawn-billings
shawn-billings
@shawn-billings
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Joined: May 29, 2012 9:14 am
Last seen: March 14, 2025 3:27 pm
Topics: 93 / Replies: 2598
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RE: Grid to Ground

Regarding Localizations (or Calibrations if you're a Trimble guy), I feel a lot like Tom Selleck at the end of Quigley Down Under, where he says somet...

10 years ago
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RE: Grid to Ground

To sum up: [MEDIA=youtube]5NNOrp_83RU[/MEDIA]

10 years ago
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RE: Grid to Ground

red flag and all, Teach. 🙂

10 years ago
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RE: Grid to Ground

MightyMoe, post: 357108, member: 700 wrote: I find much less confusion if the coordinates are simply multiplied. The JAVAD sequence shown above is a t...

10 years ago
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RE: If you could tell a newbie one thing...what would it be?

I'll take an honest ignorant man over a smart dishonest man any day of the week. A survey business must be operated on trust. You violate that trust a...

10 years ago
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RE: Grid to Ground

'Account for distortions' would probably be a better way of looking at it. Every projection type has distortions. Localization can minimize the magnit...

10 years ago
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RE: Grid to Ground

Scott Zelenak, post: 357033, member: 327 wrote: If the localization carries all the distortions of the SPC system how can it be affine?I grasp the LDP...

10 years ago
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RE: Grid to Ground

I suppose a user could create localization Metadata. Before we started using LDPs, we were basically using affine transformations of SPC to deliver gr...

10 years ago
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RE: Grid to Ground

Scott Zelenak, post: 357030, member: 327 wrote: Seems the simple definition of the localization is that it is a tangent plane system connected to SPC ...

10 years ago
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RE: Grid to Ground

A localization and a LDP vary in some significant ways. A LDP is a projection. Each grid coordinate equals a unique geographic coordinate on the Earth...

10 years ago
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RE: Grid to Ground

In Javad's software, and this is true for most, but not at all, you have several choices for projections. In all cases for Javad, the points are store...

10 years ago
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RE: This is not a survey, please certify it.

I've certified to other work. The former investigator for the TBPLS didn't agree when I asked him about it. But I feel pretty good about the clear lan...

10 years ago
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RE: 40 min or 20 min Prism Pole Bubble

There are also 8' bubbles out there. They will drive you crazy if you aren't braced a bit, but they are sensitive. Good to see you are still kicking S...

10 years ago
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RE: Georgia HB 779 Regulates drones

I would definitely object to the legal definition of "image". Collection of sound waves and electromagnetic waves. Pretty dang nebulous. That would in...

10 years ago
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RE: Will this be the one man leveling solution?

Zoidberg, post: 355318, member: 8841 wrote: It doesn't have that. Party pooper.

10 years ago
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RE: Will this be the one man leveling solution?

I'm guessing servo driven digital level with "power search". And why not, all the tech is there and has been for a long time. Might be cool, but there...

10 years ago
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RE: 2016 ALTA/NSPS Standards - Table A

I think Mark is saying it would be nice to have the option to call 811 (no problem) and a separate option for the surveyor to obtain utility plans (a ...

10 years ago
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RE: 2016 ALTA/NSPS Standards - Table A

Jim Frame, post: 354757, member: 10 wrote: I've called in many dozens of tickets for the installation of driven-rod geodetic marks. We generally go 4...

10 years ago
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RE: 2016 ALTA/NSPS Standards - Table A

In Texas they ask if you are going to be digging in excess of 24" (if I recall correctly). The iron rods we set are usually 24" in length and we count...

10 years ago
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RE: 2016 ALTA/NSPS Standards - Table A

hgman, post: 354743, member: 8980 wrote: We've had horrible response from NC 811 when we've use it. There are times where I know for a fact there are...

10 years ago
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