[Therion] My cave is on the middle of the sea on google maps ...

2012-11-03 Thread Graham Mullan
Hi Laurent For one cave in the Dordogne, I used cs UTM31 The co-ordinates to fix the entrance were then read off from a UTM grid overlay on the digital (CD) version of the IGN map You may find this site helps http://www.geoportail.gouv.fr/accueil, though I seem to only be getting lat-Long or

[Therion] My cave is on the middle of the sea on google maps ...

2012-11-03 Thread Bruce
You need to know the coordinate system you are using, then maybe these links will help http://spatialreference.org/ref/epsg/27593/ http://fr.wikipedia.org/wiki/Syst%C3%A8me_de_coordonn%C3%A9es_(cartographie) Bruce Dne 2.11.2012 18:10 "cawa sorix" napsal(a): ... and I'm not a cave diver. Hi

[Therion] My cave is on the middle of the sea on google maps ...

2012-11-02 Thread cawa sorix
Yes !!! It works the cave is at the right place. many thanks Ladislav :o) @Andrew thanks, but I don't undersand :( I will see page 33 of the book. C.S. 2012/11/2 Ladislav Blažek : > AFAIK Google is using WGS84... so: > cs lat-long > > Dne 2.11.2012 18:10 "cawa sorix" napsal(a): >> >> ...

[Therion] My cave is on the middle of the sea on google maps ...

2012-11-02 Thread Ladislav Blažek
AFAIK Google is using WGS84... so: cs lat-long Dne 2.11.2012 18:10 "cawa sorix" napsal(a): > ... and I'm not a cave diver. > > Hi all, > > I try to put my cave centerline on google maps, I generated the kml > file without issue. > But I don't know the espg code for google maps, I tried a lot of

[Therion] My cave is on the middle of the sea on google maps ...

2012-11-02 Thread cawa sorix
... and I'm not a cave diver. Hi all, I try to put my cave centerline on google maps, I generated the kml file without issue. But I don't know the espg code for google maps, I tried a lot of them, but I'm always on the sea, I try to convert to an other system, always on the sea... For example

[Therion] My cave is on the middle of the sea on google maps ...

2012-11-02 Thread Andrew Atkinson
When I did this in the UK most of the time we do not use the full co-ordinates, just the final few. So to get over this I had to use calibrate [ ] page 33 of the book Cannot give you the exact example, as Therion now understands OSGB directly so they are not in there anymore, but might give