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Jason404 |
2009-10-18
, 21:44
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Posts: 70 |
Thanked: 11 times |
Joined on Sep 2009
@ London, UK
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#21
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Originally Posted by pelago
No, it's from a first (actually, third) person perspective, that is always pointing down the road you are travelling. I do not think that the Ovi map does this (it does not on the E71 anyway).
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2009-10-18
, 22:16
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Posts: 70 |
Thanked: 11 times |
Joined on Sep 2009
@ London, UK
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#23
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I thought that the phone needs a GSM signal to triangulate its location to get a GPS lock quickly, and not an internet connection. Isn't what A-GPS (Assisted GPS) is?
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2009-10-18
, 22:58
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Posts: 3,397 |
Thanked: 1,212 times |
Joined on Jul 2008
@ Netherlands
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#24
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On OpenTom.org wiki there is an (incomplete) list of hardware features of TomTom hardware. Link. By far not all TomTom products have a digital compass, and I'm positive this is not required for accurate result. At least, not on TomTom products I've used.
1) AGPS is used.
2) Updated via 3G.
3) User moves more than 300 km.
4) AGPS data out of date.
5) *argh*
So, I'd try to:
1) Select different spot for AGPS (at least possible with AGPS on N810)
2) Disable AGPS and test what kind of difference this setting makes.
3) As workaround, get those few kB required for AGPS using roaming or WiFi.
Originally Posted by joenix
Not sure but I imagine this:
Although the performance of the GPS on the N900 has been sublime when an internet connection is available, it has been terrible without one. I have taken my N900 on a three day trip abroad and have not been able to get a fix once. Can others confirm this?
1) AGPS is used.
2) Updated via 3G.
3) User moves more than 300 km.
4) AGPS data out of date.
5) *argh*
So, I'd try to:
1) Select different spot for AGPS (at least possible with AGPS on N810)
2) Disable AGPS and test what kind of difference this setting makes.
3) As workaround, get those few kB required for AGPS using roaming or WiFi.
__________________
Goosfraba! All text written by allnameswereout is public domain unless stated otherwise. Thank you for sharing your output!
Goosfraba! All text written by allnameswereout is public domain unless stated otherwise. Thank you for sharing your output!
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2009-10-18
, 23:23
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Posts: 64 |
Thanked: 32 times |
Joined on Apr 2008
@ Cambridge/London
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#25
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Originally Posted by joenix
Pretty much the case for me too.
Although the performance of the GPS on the N900 has been sublime when an internet connection is available, it has been terrible without one. I have taken my N900 on a three day trip abroad and have not been able to get a fix once. Can others confirm this?
I resorted to navigation from a visual fix irl and using the route 'set from map'.
__________________
long time lurker, first time poster.
long time lurker, first time poster.
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2009-10-19
, 00:04
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Posts: 361 |
Thanked: 108 times |
Joined on Sep 2008
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#26
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Originally Posted by Jason404
No, it's from a first (actually, third) person perspective, that is always pointing down the road you are travelling. I do not think that the Ovi map does this (it does not on the E71 anyway).
looks like a vector based map to me.
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2009-10-19
, 00:52
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Posts: 70 |
Thanked: 11 times |
Joined on Sep 2009
@ London, UK
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#27
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Originally Posted by dantonic
I have no idea about what context you were using the word 'vector'.
looks like a vector based map to me.
If you meant a spatial vector, as in engineering, then yes, I suppose, as the view perspective is in the direction you are heading - sort of what I was saying.
If you meant vector as in vector graphics (as opposed to bitmap), then yes, the map data would be vector data, and the display would be rendered from that information, but that seems beside the point - it would be the same case for Ovi too.
What did you mean?
Last edited by Jason404; 2009-10-19 at 00:58.
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2009-10-19
, 01:00
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Posts: 2,014 |
Thanked: 1,581 times |
Joined on Sep 2009
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#28
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I have actually had this issue with other phones that use agps. Usually a software patch fixes the issue or I had to turn off AGPS entirely
__________________
Class .. : Power Poster, Potential Coder
Humor .. : [*********] Alignment: Chaotic Evil
Patience : [***-------] Weapon(s): +2 Logic Mace
Agro ... : |*****-----] Relic(s) : G1, N900
Class .. : Power Poster, Potential Coder
Humor .. : [*********] Alignment: Chaotic Evil
Patience : [***-------] Weapon(s): +2 Logic Mace
Agro ... : |*****-----] Relic(s) : G1, N900
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2009-10-19
, 01:01
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Posts: 275 |
Thanked: 46 times |
Joined on Feb 2008
@ Raleigh, NC
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#29
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What is the GPS data refresh rate? Many are 1HZ which is sufficient for most traveling. A faster sampling rate (without interpolation) or at least an option would be nice though.
__________________
N800 and N810: Diablo MMC2 Boot
N800 and N810: Diablo MMC2 Boot
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2009-10-19
, 01:09
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Posts: 1,559 |
Thanked: 1,786 times |
Joined on Oct 2009
@ Boston
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#30
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Originally Posted by Jason404
Vector vs. bitmap maps. Map data stored in some vector format is more compact and can find routes, etc. In contrast, programs that only download and save bitmap tiles don't really have any awareness of streets, etc.
I have no idea about what context you were using the word 'vector'.
If you meant a spatial vector, as in engineering, then yes, I suppose, as the view perspective is in the direction you are heading - sort of what I was saying.
If you meant vector as in vector graphics (as opposed to bitmap), then yes, the map data would be vector data, and the display would be rendered from that information, but that seems beside the point - it would be the same case for Ovi too.
What did you mean?
It's a pretty specific distinction when talking about mapping software.
@Jason
A-GPS means using a server to do the number crunching with the GPS signal data. Using the GSM towers for rough position triangulation is different. In the preview i read of the N900, the phone was able to get a GPS position fix in 30 seconds or less consistently when using A-GPS (via Nokia's provided server URL). When he tested with A-GPS disabled at my request, it took about 6 minutes to get the initial (cold) fix.
I've written about this in another thread on the N900's GPS here already. I recommend browsing that thread for details on the GPS...