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Messages 1955 - 1984 of 2039   Oldest  |  < Older  |  Newer >  |  Newest
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1955
Hi All I'm writing a fun GPS-centred website at the moment - http://www.runsaturday.com I'm currently integrating our database with the wonderful...
runsaturday
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Mar 14, 2009
2:51 pm
1956
... insist on the GPX including timestamps for all trackpoints. ... The rationale for their preference would be best asked of them. We could speculate that...
Robert Lipe
robertlipe
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Mar 14, 2009
2:55 pm
1957
... I am a contributor of a very large number of tracks to OSM and always use GPX 1.1. There is a however a requirement for timestamps for all trackpoints....
Mike Collinson
ewmjc
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Mar 14, 2009
5:17 pm
1958
... Hello, I have the same problem. I am currently writing a GPS software that will generate GPX files, but I don't know if the <ele> files should contain the...
Jean-Claude Repetto
jrepetto2001
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Apr 7, 2009
12:56 pm
1959
Hello, ... There was discussion of this around August 4, 2003 - you can use the Yahoo Groups web archive to read these old messages. Dan Foster wrote: [gpsxml]...
Dan Foster
topografix
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Apr 7, 2009
5:52 pm
1960
... Hello Dan, Thanks for your answer. To summarize the result of the 2003 discussion : ele = height above mean sea level (geoid) h = height above WGS84...
Jean-Claude REPETTO
jrepetto2001
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Apr 7, 2009
7:55 pm
1961
... I wouldn't worry too much about what garmin uses - I can walk 5 feet on a fairly mild slope and see the elevetion jump 100 feet. I've even seen it jump...
Michael A. Peters
funkyres
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Apr 7, 2009
8:16 pm
1962
... I went kayaking on Lake Ontario on Saturday, and my Garmin Forerunner said that I'd climbed 83 feet and descended 81 feet. I don't think Lake Ontario...
Paul Tomblin
canoe
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Apr 7, 2009
8:26 pm
1963
... Holy crap, you paddled all the way from Hamilton to Kingston in a day?...
Brian Scearce
blscearce
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Apr 7, 2009
9:19 pm
1964
... Not even close. I only did 5 miles out and back. That's why the 83 foot elevation change is so ridiculous. -- "You didn't need to. You sold ours." - Jon...
Paul Tomblin
canoe
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Apr 7, 2009
9:58 pm
1965
... Yes. In another place we had a discussion about this and reached similar confusion. In addition, this other place is mostly about devices where...
Simon Slavin
simonslavin
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Apr 7, 2009
11:08 pm
1966
On Tue, Apr 7, 2009 at 7:04 PM, Simon Slavin ... I think I can state pretty confidently that 99% of GPS users care more about altitude MSL (above Mean Sea...
Paul Tomblin
canoe
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Apr 7, 2009
11:17 pm
1967
The geoid is bumpy and wrinkly all over. The ellipsoid is mathematically trivial, in absolute and as compared to the geoid. Could Garmin really have a model of...
Tom Budlong
budlong
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Apr 9, 2009
1:18 pm
1968
... mathematically ... have ... non-speculative ... Of ... above ... level is ... will ... the...
tu206f
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Apr 9, 2009
4:07 pm
1969
Yes, Garmin has a model of the geoid in their firmware. Its resolution is another matter. The NMEA $GPGGA sentence gives the altitude above mean sea level and...
Dan Anderson
dananderson2
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Apr 10, 2009
4:19 pm
1970
Yes, Garmin has a model of the geoid in their firmware. Its resolution is another matter. The NMEA $GPGGA sentence gives the altitude above mean sea level and...
Dan Anderson
dananderson2
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Apr 10, 2009
4:19 pm
1971
... Can we test it empirically ? Find some place on earth where the various (four ?) values of 'elevation' are clearly different, some GPS units there, and...
Simon Slavin
simonslavin
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Apr 10, 2009
6:58 pm
1972
... When I first got my garmin, the elevation at Lake Shasta was pretty close to the published elevation above sea level. But it jumped around - so it wasn't...
Michael A. Peters
funkyres
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Apr 10, 2009
7:28 pm
1973
... 1. The value in the GPGGA sentence is the altitude above mean sea level by the NMEA specification; otherwise, a company is in violation (I'm not saying...
Dan Anderson
dananderson2
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Apr 10, 2009
9:50 pm
1974
On Fri, Apr 10, 2009 at 2:58 PM, Simon Slavin ... It's too bad my WAAS-capable Garmin 296 got stolen. The elevation on a WAAS GPS is much more reliable than...
Paul Tomblin
canoe
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Apr 10, 2009
9:56 pm
1975
... Very interesting. Does everyone agree that it's most reasonable for a GPS unit to calculate and log height-above-geoid ? Or does that strike anyone as...
Simon Slavin
simonslavin
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Apr 10, 2009
11:11 pm
1976
... It is most reasonable for them to report the elevation most useful to the consumers who purchased the unit. I suspect for most people that is elevation...
Michael A. Peters
funkyres
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Apr 10, 2009
11:46 pm
1977
... But don't forget that the GPS system gives the height above the WGS84 ellipsoïd. To be able to provide the height above MSL to the user, the GPS units...
Jean-Claude REPETTO
jrepetto2001
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Apr 11, 2009
4:55 pm
1978
In the schema, several items have a minOccurs=0 w/ no maxOccurs defined. Is maxOccurs to be interpreted as 1 or unbounded? We'd like to be able to define...
nwoverlander
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May 22, 2009
5:17 pm
1979
... Technically, this would indicate that you can have as many as you like. If you as suspicious about how this might apply to the item you're looking at,...
Simon Slavin
simonslavin
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May 22, 2009
9:03 pm
1980
The schema element in question is: <xsd:element name="sym" type="xsd:string" minOccurs="0"> <xsd:annotation> <xsd:documentation> Text of GPS symbol name. For...
Craig Miller
nwoverlander
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May 22, 2009
9:28 pm
1981
... 1 is the default if the minOccurs component is not explicitly defined. steve magnell...
magnells
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May 22, 2009
9:31 pm
1982
Hello, ... http://www.topografix.com/GPX/1/1/gpx.xsd If you look at other element definitions in the GPX schema, you'll see that elements that can be repeated...
Dan Foster
topografix
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May 22, 2009
10:15 pm
1983
I'm getting an unexpected run-time error: "Unable to generate a temporary class (result=1). error CS0030: Cannot convert type 'demo3.gpxTrkTrksegTrkpt[]' to...
gpsanimator
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May 24, 2009
11:47 am
1984
Thanks for the replies. My question was answered. The default if not specified is 1. Craig ... From: "Dan Foster" <egroups@...> Sent: Friday, May...
Craig Miller
nwoverlander
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May 25, 2009
2:31 pm
Messages 1955 - 1984 of 2039   Oldest  |  < Older  |  Newer >  |  Newest
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