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Saving Access Calibrations

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(@williwaw)
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One of the things I really liked about Survey Pro was after collecting a number of control points to perform a localization (calibration or whatever) and I finally got comfy with the residuals and accepted it, I'd book the SF and rotation and when I later found myself back on that control down the road maybe several years and I could occupy the same point I could manually enter that calibration into the DC by telling it the SF and rotation from the booked calibration from previous work. I'm getting quite comfortable with using Access after a couple of years and despite it's frustrating little Kiwi nuances I find it perform quite well, though not as intuitively as Survey Pro. So .... anybody out there aware of how to save a calibration or manually enter a calibration in Access so I'm not forced to reinvent the wheel and as anyone who has done enough of these will know it's virtually impossible to recreate the exact same calibration on the second go around. This mostly involves old work on local grid systems that I'm expanding on to accomplish a new mission that I'll eventually post process and get into a standard projection after I've completed the current mission. If I end up needing to do a lot of coordinate gymnastics back in the office and wind up starting a new .job, my previous calibration goes bye-bye and I'm back to square one. Not good. Willy no likey.

Cheers from the land of the midnight sun!
Willy out.

 
Posted : 21/06/2016 5:31 pm
(@that1surveyor)
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If you export a .JXL file it will take with it the calibration as a local site.
You can get the perimeters from that file and enter them the next time you need to use that projection.

 
Posted : 21/06/2016 8:48 pm
(@lee-d)
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You can do exactly the above - export JXL from either Access or TBC; it contains the parameters and you can always re-import it to Access.

Option two would be to go into the job properties, click on the coordinate system, and go in and write down all of the numbers. That would be the tedious, laborious option but then you'd have it, even if all you electronic versions were lost.

Option 3, and my option of choice, is to bring the job with the site cal into TBC, go to the Command Pane (1), and hit Save As Site (2). This saves the site to your CSD database; you can now do two things:
1) create a template in TBC that uses that site by default
2) upload the current.csd - or better yet, a custom.csd that contains only the coordinate systems that you're ever likely to use, like the Bangladesh Grid 1967 - to Access. Your site is now available to be used whenever you need it.

Attached files

 
Posted : 22/06/2016 5:52 am
(@lee-d)
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Coincidentally, this just came up here yesterday when a PM wanted to load a plant grid back into a PCs collector. We used the JXL because it was expedient at the time, but I just tested the custom.csd to make sure there were no hiccups and it worked fine. When you go to Select From Library you get an option (user sites) that contains you site cals. As a further check I keyed in a local grid coordinate and then verified that the proper WGS84 values were displayed in Point Manager.

 
Posted : 22/06/2016 6:30 am
(@williwaw)
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Lee D, post: 378585, member: 7971 wrote: Coincidentally, this just came up here yesterday when a PM wanted to load a plant grid back into a PCs collector. We used the JXL because it was expedient at the time, but I just tested the custom.csd to make sure there were no hiccups and it worked fine. When you go to Select From Library you get an option (user sites) that contains you site cals. As a further check I keyed in a local grid coordinate and then verified that the proper WGS84 values were displayed in Point Manager.

Perfect! I'll play around with this today. I knew there had to be a way, I just couldn't find anything in the Access manual on the subject.
Please forgive any nonsensical comments on my part. This is the time of year when sleep is reserved for winter.

Thanks Lee!

 
Posted : 22/06/2016 7:10 am
(@jim-in-az)
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I have no idea how Survey Pro works but with Topcon we just reload the job file and all the elements of the project are restored.

 
Posted : 22/06/2016 7:11 am
(@pdop-10)
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I save my site calibrations and have about 50 different sites stored depending on what local system has been used, as said it saves you having to re invent the wheel.

I can offer two snippets of advice:
TBC will not let use a stake out point to perform a site calibration, yet access will, so you cant save the site calibration in TBC if you are using a stake out point. I believe there may be a way around this but dont know it.

My way around it is to stake out the control point, log it, see how far you are off, then record the point as a normal topo shot or observed control point, then use it for the localisation.

If you are using a RTN or VRS network, and they update the base co ordinates, say due to drift or plates moving, your site calibrations will be out by whatever they shift the RTN bases by.

If you know the shift of the bases, you can adjust the shift Y and shift X by the same parameters and your calibration will still be good ...Kinda.

They adjust the VRS base co ordinates on our system every 2-3 years by 50-60mm to allow for this, so you need to keep your calibrations currant and up todate.

 
Posted : 22/06/2016 10:49 am
(@lee-d)
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pdop 1.0, post: 378633, member: 459 wrote: TBC will not let use a stake out point to perform a site calibration, yet access will, so you cant save the site calibration in TBC if you are using a stake out point. I believe there may be a way around this but dont know it.

Open Project Explorer, expand As-Staked Points, right-click on the point in question, and select Convert As-Staked Points. The point will be converted to a regular point. I routinely do this with all of our as-staked points; the as-staked points are appended with -1, I just delete them. (You have to hit Recompute to make the converted points appear on the screen)

 
Posted : 22/06/2016 11:37 am
(@poorpdop)
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What I've ended up doing is creating the calibration for a particular project in a job all its own in the data collector, then once it's nailed down and finalized I just keep it in the DC and copy it over to the active job files for its project. You can always copy calibrations and control between jobs using the Copy Between Jobs function.

 
Posted : 22/06/2016 11:44 am
(@pdop-10)
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Lee D, post: 378641, member: 7971 wrote: Open Project Explorer, expand As-Staked Points, right-click on the point in question, and select Convert As-Staked Points. The point will be converted to a regular point. I routinely do this with all of our as-staked points; the as-staked points are appended with -1, I just delete them. (You have to hit Recompute to make the converted points appear on the screen)

Thanks Lee, that was really easy..

 
Posted : 26/06/2016 4:48 am