WGS84 gps point in postgis
Stéphane RIFF
stephane.riff at CERENE.FR
Fri Aug 20 01:38:32 PDT 2004
Arnulf Christl wrote:
> Stéphane RIFF wrote:
>
>> Hello,
>>
>> I want to store WGS84 gps points in a postgis table:
>> What is the format of WGS84 point in postgis ???
>> For now i have something like this:
>> SRID=4326;POINT(DDMM.SSSS DDMM.SSSS) ----> is that
>> ok ???
>>
>> Next i want to show those gps points on raster map in other projection:
>> epsg:27582 (lambert II etendu)
>>
>> Does somebody already do something like that...
>>
>> All advices are wellcome
>>
>> Thanks
>>
> Hi,
> just as Vladimir pointed out the format should be something like:
> SRID=4326;POINT(7.0725 50.73882)
>
> You need a geometry field in the table, so after creating the TABLE
> (named umn_user in this example) itself:
>
> CREATE TABLE umn_user (
> gid integer,
> firstname character varying,
> lastname character varying,
> ...
> );
>
> you have to add the field that contains the geometry (DATBASE germany,
> TABLE umn_user, FIELD the_geom, SRID, Type, dimension):
>
> SELECT AddGeometryColumn('germany', 'umn_user', 'the_geom', 4326,
> 'POINT', 2);
>
> then you can add values:
>
> INSERT INTO umn_user VALUES (42, Stephane, Riff, ... ,
> 'SRID=4326;POINT(7.07250238209242 50.7387903487365)';
>
> Now you can add WMS capabilities to the MAP file and query MapServer
> with WMS syntax. Then you can switch projections on the fly by just
> adding another EPSG code to the getMap string. The WMS client
> Mapbender includes that functionality, check it out here:
> http://www.mapbender.org/testbed.html
> The testbed currently contains 3 WMS and as you can see not all of
> them answer to all EPSGs.
>
> Cheers, Arnulf.
>
Thanks for answer,
Now i tried this but it doesn't work:
the mapfile :
MAP
NAME HELLO
STATUS ON
EXTENT 47673.624 1616618.5 1197873.624 2677218.5 #extent of France
SIZE 400 300
IMAGECOLOR 200 255 255
WEB
IMAGEPATH "/var/apache/web/tmp/"
IMAGEURL "/tmp/"
END
PROJECTION
"init=epsg:27582" # lambert II
END
LAYER
NAME "credits"
STATUS DEFAULT
TRANSFORM FALSE
TYPE ANNOTATION
PROJECTION
"init=epsg:4326" #WGS84
END
FEATURE
POINTS
7.07250238209242 50.7387903487365
END
TEXT 'Hello world. Mapserver rocks.'
END
CLASS
LABEL
TYPE BITMAP
COLOR 255 0 0
END
SIZE 16
END
END
END
I can't see anything, do i miss something
Hope someone could help
THX
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