Re: [Gpsbabel-misc] DOP, Port Scan & Py

[Robert L. <rob...@gp...>]

I don't understand what that gets you over just a batch file or other
scripting language that calls the command you built at line 72, but I don't
really know what I'm looking at. if this works for you, groovy!

If you're making this to share with others, please use "GPSBabel" (no
space, capital B) for consistency.

You may (or may not) find
https://www.gpsbabel.org/htmldoc-development/fmt_skytraq.html helpful.

I can't remember the details of the skytraq, but it's entirely possible
that you really can't authoritatively enumerate the devices. (It may be
possible to do it "well enough" if you have some control over the hardware
tree.)  Lots of these logger products just use a commodity USB/TTL chip
internally to plumb the GPS+Processor's TTL serial out to the USB Bus. They
thus tend to have USB IDs of that chip (Prolific, FTDI, et.) and not of the
actual GPS device. So your system may know you have a "COM6:" out there,
but not know if COM6: is this GPS or if it's a USB missile rocket launcher
or other whatever.  If it's a home/personal system that you control, that
may not matter much.

Good luck in your project.

On Tue, Sep 12, 2017 at 7:59 PM, Josh De La Rosa <jos...@gm...>
wrote:

> Thanks for the feedback. I wrote this Notebook https://github.com/
> joshdelarosa1/gpsbabel_py/blob/master/GPS_Babel%2BNotebook.ipynb which
> calls GPS Babel from within Py.
>
> Josh
>
> On Tue, Sep 12, 2017 at 1:49 PM, Robert Lipe <rob...@gp...>
> wrote:
>
>> Hi and welcome.
>>
>> 1) Is being able to out DOP, including HDOP and PDOP related to the
>>> logger or the GPS Babel command? I am using "unicsv" to extract data from
>>> my SkyTraq logger. The HDOP and PDOP are not output. Is that because the
>>> logger doesn't record it?
>>>
>>
>> ​DOP isn't something we know how to pull from Skytraq. It's not something
>> we worry about a whole lot.​
>>
>> 2) Before using a command line statement to pull the data, I have to
>>> check the Device Manger to find with COM port the logger is registered to.
>>> Is there a way to scan the ports to find the GPS logger?
>>>
>> ​
>> Our GUI only offers windows com ports that are available. The CLI version
>> doesn't offer that.​
>>
>>
>>> 3) I noticed QGIS has a plug-in to pull data from a GPS logger using GPS
>>> Babel. Are there any recommendations for using Python to retrieve data from
>>> a logger?
>>>
>>
>> There's another user right now scripting GPSBabel with Python, but it's
>> really up to you to integrate it in other languages. You just build the
>> command and shell out to it.
>>
>> ​
>>
>
>