What is the best way in TGO to set up an assumed/local site using say 5000,5000 type coordinates? I do a lot of high accuracy "certified" stakeout and feel like I have a beginners/moderate understanding of the program, but this aspect still seems to elude me. In the past it seemed to work well, and the adjustments were pretty close to other packages if I set up a local "site" with scale factor 1.0000 and a project N/E of 0,0. What I don't like, however, is that TGO still shows the coordinate system as WGS 84. This is not true, and I don't like every little aspect of the software I use to not be perfect. Like I said it is doing a reliable job compared to other programs, but this just bugs me.
And no, I am not going to use it as a main source of adjustment until well-versed. Furthermore I never adjust anything with only one software.
thanks
"Best way" depends on what you are trying to do -
When working with TGO it is important to recognize that (in most situations) once a point exists in a defined projection the point "remembers" its geographic (latitude, longitude, height) position and the grid coordinates (northing, easting, elevation) are determined by whatever projection the TGO project happens to be using at the time you view the grid coordinates. This is what allows TGO to easily reproject points from one projection to another.
The upshot of the preceding paragraph is that you need to establish the coordinate system (projection, geoid model, etc.) before you import grid coordinates into the TGO project.
One common situation is where the surveyor has a file or list of arbitrary (not on a published or even defined projection) northing-easting-elevation point coordinates and it is necessary to calibrate or localize to some of those points and stake out the others. If that is what you are trying to accomplish, we have prepared detailed instructions you can find at the link titled Grid Coordinates to TGO and Survey Controller
If this does not fit your specific needs, please describe prezactly what you need to do.
On the WGS84 situation, take a look at the link titled NAD 83 Datum-Transformation Issue
"Best way" depends on what you are trying to do -
I didn't make myself clear. I am wanting to adjust and check the error ellipses for points that are, and will always be local/assumed. Such as points inside of a building for architectural purposes. I have no need of ever introducing WGS/NAD83 data into the project.
thanks
"Best way" depends on what you are trying to do -
Adam,
Read Glenn's post again and carefully, he answered your question quite well.
CV
Sounds like Carlson will do everything you need.
Some TGO resources
Hello again Adam,
If you have access to AutoCAD and the Survey Module, I believe the least squares/network adjustment would be a better solution for what you are looking for. If not, below are some links to the TGO manuals. The 'Sample Data Guide' is a great way to get started with TGO, the sample data is included within the program but if you have any problems finding it, shoot me an e-mail and I'll send the sample data your way.
Users Guide Volume 1
http://www.geometius.nl/uploads/handleidingen/Trimble%20Geomatics%20Office%20User%20Guide%20Vol%201.pdf
Users guide Volume 2
http://www.geometius.nl/uploads/handleidingen/Trimble%20Geomatics%20Office%20User%20Guide%20Vol%202.pdf
Sample data guide (a nice little tutorial)
http://www.gpstraining.com/downloads/MANUALS-QUICK%20GUIDES/Sample%20Data%20Guide.pdf
A nice resource link:
http://gpstraining.com/manuals_quickguides.html
Hope you find some of this to be helpful.
CV
Some TGO resources
don't forget to checkout the hosts of those documents:
@Glenn- Mini - hijack
that avatar looks a little more adventurous than giving classes on Coordinate projections, etc- care to explain your activities of late?
@Glenn- Mini - hijack
Rankin,
I was pondering that one myself. I currently work for a major utility company and Glenn's avatar sure looks like a 'lineman' to me.
CV
