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DavidW Pocket GPS Moderator
Joined: 17/05/2003 02:26:21 Posts: 3747 Location: Bedfordshire, UK
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Posted: Sun Sep 14, 2003 8:04 am Post subject: TTN2 Wrong Screen Orientation |
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One thought is that your GPS hardware has stopped outputting the NMEA sentence that Navigator is using for direction (probably VTG).
What GPS are you using? If it's SiRF based (for example, the TomTom GPSes), you may be able to change the sentences output with WinFast Navigator and avoid this. If it's this kind of problem, though, it's odd that it's intermittent.
David |
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Dave Frequent Visitor
Joined: Sep 10, 2003 Posts: 6460 Location: UK
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Posted: Sun Sep 14, 2003 8:04 am Post subject: TTN2 Wrong Screen Orientation |
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Alan, are you sure you're not in map mode ? I think it's probably a bug/glitch you've discovered. I haven't seen it myself, but I'd doubt that it was VTG, if it was then you'd get this continually even after cold starts. If you're using the standard drivers rather than NMEA or SiRF drivers (eg TomTom Navigator GPS) then this will hard set the GPS Receiver on connecting to the preferred settings, and to lose this part way through a journey, I'd be very surprised if that would happen.
If it happens again, see if it happens at a particular location, or if you've been in to any menu options throughout your journey, it might be an alternative route, or something similar is glitching and causing a problem here. It sounds as though it's probably a small bug as we haven't heard from anyone else about this issue. |
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Parky Regular Visitor
Joined: 25/05/2003 09:12:02 Posts: 247 Location: Bradford UK
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Posted: Sun Sep 14, 2003 8:04 am Post subject: TTN2 Wrong Screen Orientation |
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Over the past couple of weeks, on two seperate occasions, I have set a route as normal, but when I start to drive the screen seems to be locked facing North. This means that when I travel either East or West the road traverses on the sreen instead of the screen following the road as normal. The big problem is when travelling south, TTN tries to recalculate every 30 seconds which is a real pain. I ended up this morning turning TTN off because of the hassle. I went through all my settings to see if there was anything obviously wrong, but I could'nt find anything. When I programmed another route back everything was OK.
One thing I did do on both occasions was recalculate using alternative routes, and avoid a certain road.
Sorry it's so long, but idea's welcome.
Alan |
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DavidW Pocket GPS Moderator
Joined: 17/05/2003 02:26:21 Posts: 3747 Location: Bedfordshire, UK
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Posted: Sun Sep 14, 2003 8:04 am Post subject: TTN2 Wrong Screen Orientation |
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I wonder (jokingly) if this is the North Pole Special Edition. No matter which way you move, it decides you're headed to the Pole...
or is it
for that, I wonder.
My original suggestion about VTG was the only thought that came to mind at the time - though, as Dave says, it would be very unlikely to happen mid journey.
More seriously, if you can get into the GPS Status screen when the problem has occured, you can see whether there's still any bearing output - or whether it's just pointing to 0 degrees all the time. That might give some idea as to whether the problem is likely to be a GPS hardware / driver issue (bearing stuck at 0 degrees), or a bug in Navigator (bearing shown correctly in the GPS driver). It'd also be interesting to see what the compass was showing in the Navigator screen when the problem happens.
Having found a problem, it would be a good idea to check you're running the latest versions of Navigator 2 (2.24) and the GPS driver (2.06) as well. If you are not already running these versions, you can download the upgrades here.
David |
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Dave Frequent Visitor
Joined: Sep 10, 2003 Posts: 6460 Location: UK
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Posted: Sun Sep 14, 2003 8:04 am Post subject: TTN2 Wrong Screen Orientation |
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, now is that the North Pole, or Magnetic Pole ? |
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DavidW Pocket GPS Moderator
Joined: 17/05/2003 02:26:21 Posts: 3747 Location: Bedfordshire, UK
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Posted: Sun Sep 14, 2003 8:04 am Post subject: TTN2 Wrong Screen Orientation |
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Should be the True North Pole, as it's true bearings that GPS hardware outputs (some outputs magnetic bearings as well, but that is not a common feature).
Either way it's cold! There's no blue smileys other than the Thumbs Up one, nor are there any penguins (not that penguins are actually at the Pole) - but you get the idea...
David
(who wonders if any use would be found for a Tux smiley if we had one - for those that don't know, Tux is the Linux penguin logo) |
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Dave Frequent Visitor
Joined: Sep 10, 2003 Posts: 6460 Location: UK
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Posted: Sun Sep 14, 2003 8:04 am Post subject: TTN2 Wrong Screen Orientation |
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Yep, I'm a Tux fan! RedHat, and Trinux are my daily used OS's. |
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Parky Regular Visitor
Joined: 25/05/2003 09:12:02 Posts: 247 Location: Bradford UK
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Posted: Sun Sep 14, 2003 8:04 am Post subject: TTN2 Wrong Screen Orientation |
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Thanks guy's for the input. All this, VGT, NMEA or SiRF is going straight over my head unfortuneatly. I will however let you know if this does occur again, and exactly what I was doing at the time (censorship permitting). I am running the latest (2.24 and 2.06) from TTN.
Regards
Alan |
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DavidW Pocket GPS Moderator
Joined: 17/05/2003 02:26:21 Posts: 3747 Location: Bedfordshire, UK
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Posted: Sun Sep 14, 2003 8:04 am Post subject: TTN2 Wrong Screen Orientation |
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You could try my idea about bringing up the GPS Status screen - that seems worthwhile.
VTG is the NMEA 'sentence' that gives direction and speed of travel. In NMEA mode, a GPS outputs lines that begin with things like
$GPVTG
and it's lines like that that contain direction and speed of travel.
David |
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