Hot answers tagged trimble
Unfortunately I haven't found an Open Source solution. However, there is a Trimble extension in ArcMap called GPS Analyst that will post-process .ssf files. They have also released a new version for ArcGIS 10.1 called Trimble Positions desktop addin that is the current ESRI solution.
First, welcome to the site! To check your data back in you need to run Check-In (form the Data Manager Toolbar) for each of the AXF files. This will check modifications (edit, create & delete) back into the parent Geodatabase. Note that if there are any conflicts, last in wins (ie, new data will overwrite existing data even if that data had changed ...
SSF is an acronym for Trimble's proprietary "Standard Storage Format" file. Trimble Standard Storage Format (SSF) [...] describe coordinate geometry [...] information from Trimble TerraSync™ field software and GPS Pathfinder Office software. Referenced from May 5, 2010 Trimble press release.
Trimble makes a dedicated software package for this (other than Trimble GPS Analyst), Pathfinder Office, which will let you do this and lots of other things with your Trimble files. Contact your Trimble rep (if you bought the unit from them) and they may be able to hook you up with a free or discounted copy. You can export positions that aren't part of a ...
It's easy to confuse positions and actual points which are different things. Positions are logged to a single point, which are then averaged to produce the final location of a point. If you recorded a bunch of positions that followed a fenceline into a single point you'll probably have some trouble getting those into the format you wanted. This is done ...
With the Trimble GPS Analyst Extension for Esri ArcGIS for Desktop Software you should be able to connect your Trimble Supported formats Base file formats Hatanaka (Compressed RINEX) RINEX Trimble DAT format Trimble SSF format http://www.trimble.com/mappingGIS/gpsanalyst.aspx?dtID=applications&
The Nomad comes with SatViewer which allows you to record up to 64,000 characters of NMEA data per file - NMEA has many different messages defined but all are text, easy to parse, and the GLL message contains lat/long/time etc. http://www.trimble.com/outdoorrugged/nomad/SatViewerManualrevA.pdf http://www.gpsinformation.org/dale/nmea.htm
We (embarrassingly) purchased at GeoXT without software and were put in a position to attempt to obtain GPS data and post-process it. In my research I stumbled on this http://gpspp.sakura.ne.jp/rtklib/rtklib.htm and believe it may be a good lead - our office has not had much flexibility to look into the potential. "RTKLIB is an open source program package ...
I am not in a position to provide you the exact workflow but it must be possible. I believe you would have access to Trimble Business Center (TBC) application which is provided along with Trimble GNSS receivers. Once you post-process your data you would be able to export it into commonly used GIS formats like shapefiles. This exported data can be used ...
I cannot answer but this other question may give you some useful material. RTKLIB is the reference open source post-processing solution, but it doesn't seem to support .ssf (yet?).
It has been a while since I worked with a trimble dictionary. It should be too difficult to parse out the portions you need. I would start with a small export from trimble to a text file and compare that to your htm (hwhich is just a glorified text file). I do remember that the dictionary editor has some options for input and output.
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