[Mapserver-users] Virtual Spatial Data - layer not visible
Jenu Abraham
jenu_ab at hotmail.com
Wed Jun 2 09:59:47 PDT 2004
hi,
Thanks a lot , i had totally messed up that latlong table...
but my problem still persists
i now have my latlong table as....
x | y
-------------------------------
-87.9044722 | 41.9795833
-------------------------------------------
-97.52 | 35.46
------------------------------------------------
i can see the states layer but
i dont see any points on my map..from the truck layer-which is the virtual
spatial layer
is something wrong in the projection? to tell the truth i am still stuggling
with projections.....
when i tested with ogrinfo, "testing2.ovf" gave the expected output..
------------------------
mapfile
-----------
MAP
NAME e-test-rd-jbox-vsd_
IMAGETYPE GIF
EXTENT -2236857.50 -1744057.00 2786329.50 29069.36
SIZE 800 600
SHAPEPATH "C:\cgi-bin\data\"
FONTSET "C:\cgi-bin\fonts\fonts.list"
WEB
TEMPLATE 'e-test-rd-jbox.html'
IMAGEPATH 'C:\cgi-bin\tmp\'
IMAGEURL '/tmp/'
END
PROJECTION
"init=epsg:2163"
END
LAYER # States polygon layer begins here
NAME states
DATA statesp020
STATUS DEFAULT
TYPE POLYGON
PROJECTION
"init=epsg:4326"
END
CLASS
COLOR 240 240 100
END
END # States polygon layer ends here
LAYER # start of truck position from database
NAME trucks
TYPE POINT
CONNECTIONTYPE OGR
CONNECTION "testing2.ovf"
DATA "mylayer"
STATUS DEFAULT
PROJECTION
"proj=latlong"
END
CLASS
SYMBOL 1
SIZE 6
COLOR 255 0 0
END
END # end of connection layer
# End of LAYER DEFINITIONS
END # end of map file
--------------------------
testing2.ovf
-----------------------
<OGRVRTDataSource>
<OGRVRTLayer name="mylayer">
<SrcDataSource>ODBC:user/pwd at localserver</SrcDataSource>
<SrcLayer>latlong</SrcLayer>
<GeometryType>wkbPoint</GeometryType>
<LayerSRS>WGS84</LayerSRS>
<GeometryField encoding="PointFromColumns" x="x" y="y"/>
</OGRVRTLayer>
</OGRVRTDataSource>
----------------------------------------------
jenu
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