Hi All, I have come across an interesting situation when converting a log of NMEA sentences to GPX. Firstly, the NMEA sentences are saved in a CSV file as per...
... First, take a look at the GPX file with a text editor. Are there timecodes in there associated with each point ? If not, then Mapsource is not seeing any...
Hi Simon, Yes, each point does have a timestamp and the times are reasonable. For example, the speeds only jump around in smallish amounts, but enough to show...
I'm developing a geotagging app of sorts that can read GPX files. I've noticed a couple GPX exporters (gpsbabel and Garmin's "Bobcat") that will take a...
... "ACTIVE LOG" and ... <trkseg>: Can't speak for Bobcat, but I can speak pretty authoritatively for GPSBabel. Disclosure: I am the Chief Babel Head. ... day...
natevw, I agree with you: A trkseg should not be turned into a new track resulting in tons of tracks. I also think that trkseg is a very reasonable construct,...
... I agree. That would seem to be exactly the purpose of having trksegs in the GPX format. Segments could be used for many different purposes, not only GPS...
... So I got interested and went back to the GPX documentation: <http://www.topografix.com/gpx/1/1/#type_trksegType> "A Track Segment holds a list of Track...
Hello, ... Read Martin's email again - every spatial format contains the concept of a multi polyline - a single object that contains multiple lines. There are...
... As far as how it maps to other GPS related formats, I will defer to your experience there. But as other posters have mentioned, the concept of one item...
Hi, You may find this useful: http://wms.mapuse.net/demo/playground/gpxgeo.phtml This this a demostration of the core PHP4 libs from the open source project...
Does a wpt's name field have to be unique? In my aeronautical data, there are a lot of NDB's with the identifier "AA" or "AB". As well, there are places like...
... are GPX doesn't say they have to be unique. Many GPSes (most, in fact) require they be unique. GPSBabel has a bucket full of code that tries to know...
... There's no requirement for it in the GPX definition. However, that may be because XML has no way to specify that the names would be unique. But if...
... NDB (Non Direction Beacon) and DME (Distance Measuring Equipment) are two types of ground-based navigation aids that it's quite helpful for aeronautical ...
... That's true of some Garmins. (Their spec actually has weasel words on this.) For example, the 60CSx will detect duplicate names and rename them for you. ...
... Okay, so there are many of these things. Theoretically they could all have serial numbers or something, but in practise, they're identical so they all...
... "Some" Garmin stuff is OK. ... I guess in my world, it's marginally OK. The reality is that as an intermediary, which both GPX and GPSBabel tend to be,...
... If by "XML" you actually meant the XML Schema language published by WC3 then you are incorrect. XML Schema allows the specification of uniqueness in XML...
... Ah ! I didn't know that. In that case, since the ability exists and GPX doesn't use it, I conclude that there is no requirement that names be unique....
I'd like to make a short introduction. I'm an open source Java programmer that will be (hopefully) addins support for the GPX file format to the GeoTools...
Hi, I have been looking around a bit but didn't find a couple of clean classes to just read and write gpx so has written that for my GPS logger software,...
Kalle, I’ve been working on my own java classes for working with GPX for a website I’m developing. I would strongly recommend going the JAXB route using...
... Hello lists, I'm about to develop a GPX component in spatialdataintegrator (SDI) with geotools 2.4.2 and it's work properly ! See the GPX+geotools module...
Thanks Robert. I saw that "cmt" was a String type when I looked at the schema documentation, I just didn't realize it represented a "comment". Thanks for the...
... You're not the first to not immediately recognize that if you allow popups and click on the question mark thingy at the end, you can get a short ...
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