- HOW TO EXPORT GPS VECTORS FROM LEICA GEO OFFICE HOW TO
- HOW TO EXPORT GPS VECTORS FROM LEICA GEO OFFICE SOFTWARE
It can be seen from the example above that vector standard deviations are too optimistic, the covariance matrix can be multiplied by a common factor in the case shown above a good starting value might be a factor of 5. We can simply take the square root of those values to find the standard deviation. The diagonal elements Var (X), Var(Y) and Var(Z) are the variance in dX, dY and dZ. To get the required covariance matrix we simply divide all values from xx to zz by 1/m0^2
None of these values are contained in the asc files, lets have a look what’s inside. correlation: The error consists of the standard errors of the XYZ components followed by their correlationsSx Sy Sz cyx czx czz.full: The error consists of 6 elements of the covariance matrix of the XYZ components in the orderCxx Cyx Cyy Czx Czy Czz.Two types of baseline errors can be used, they are:
HOW TO EXPORT GPS VECTORS FROM LEICA GEO OFFICE SOFTWARE
You can then import the ascii file into Civil 3D, via the survey database, to process linework.Working with Leica asc-files containing GNSS baseline information is quite easy if we are lucky enough to have commercial software like MicroSurvey Star*Net available.During import the software will extract the baseline vectors and the cofactor matrices information contained in the file will be turned into variance-covariance matrices automatically and the user might not actually understand what’s happening in the background.įor my GNSS assignments done during my TAFE Diploma of Surveying course I decided to try a freeware network adjustment software called SNAP, this software is available from the Land Information New Zealand ( LINZ) website: Import your GPS data into their software, process, adjust, etc. The functionality Sinc talks about is for Trimble collectors only and in my opinion, not worth it when compared to importing the data into Trimble Geomatics Office.If you currently use Topcon's software to process RTK or static, then keep using it. To answer your question about working with GPS datacollector directly, no it will not. Little changes from one yearly release to another, so Autodeak can only address so much before they have to launch their 'latest and greatest(?)'. Some of the new stuff is neat, but it leaves most of us frustrated whenever we have to deal with Survey. A very dysfunctional approach, in my opinion, but it CAN work.Personally, I think most of C3D's Survey functionality is barely-useable, and have been very vocal in telling Autodesk about that.īut they still don't seem to understand the importance of Survey, and concentrate on their Engineering clients. It basically treats the GPS vector from the base station as a total-station shot, allowing it to work with C3D's FBK system. Trimble Link does something very funky, which actually works in many situations. I have not located any instructions in the help files.
HOW TO EXPORT GPS VECTORS FROM LEICA GEO OFFICE HOW TO
Yet I can not find instructions on setting it up using a GPS collector.We are currently using the 'Ranger X', which I beleive is made by TopCon.Would someone at Autodesk email me instructions on how to set this up if the GPS units can be used. Will the 2012 software work with a GPS collector or not? We would like to utilize what I call the autodraw function of the survey database, as this will save an ungodly amount of time. Get best results by managing and combining your data with Leica Geo Office.Īfter reviewing some of the comments pertaining to setting up the equipment data base, I am a bit confused by some of the answers in the threads.The Question is this.
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