WMS and reprojection
Paul Hasenohr
paul.hasenohr at JRC.IT
Thu May 26 05:34:26 PDT 2005
Hi Vincent,
Some notes and suggestions(?) to solve your problem,
Server1:
Layer Europe:
wms_title is the same as for the map, maybe it is not a good idea (I never tried so maybe I am wrong).
projection of the layer is not defined (should be "init=epsg:xxxx" and not "epsg:xxxx"). Mapserver is then using the one
defined in the PROJECTION section below MAP, is it the correct one?.
Server2:
Note: The projection section directly below MAP does not matter for the wms as it is not an epsg code.
Layer France_L2:
You do not need to specify a wms_srs for a specific layer. It is defined in the projection section of the layer.
If it is not enough, try putting the epsg codes under WEB/wms_srs in the same order or specify only one (obviously the
same epsg code for both mapfiles!). In your WMS client, did you specify in which projection you want the data to be
sent?
As you wrote your WFS mapfiles are working, if what I wrote before is not working, just replace wfs_ with wms_ in your
wfs mapfiles and check if it is working better. (you will need to comment the wfs_schemas_location lines).
Paul
-----Original Message-----
From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On Behalf Of vincent.dacol
Sent: Thursday, May 26, 2005 12:08 PM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: Re: [UMN_MAPSERVER-USERS] WMS and reprojection
OUPS
I work to mutch, and I send you my WFS server file lol. Sorry.
This mapfile work great and all project overlay very well.
Here is my WMS server file, realy that's the good one ;)
server 1:
########################################################################################################################
########################################################################################################################
#############
##MAP###################################################################################################################
########################################################################################################################
#############
########################################################################################################################
########################################################################################################################
#############
MAP
NAME Europe_WGS84
EXTENT -34.5523788 26.2114230 72.2516881 83.340374
IMAGETYPE gif
SIZE 800 600
SHAPEPATH "data"
PROJECTION
"init=epsg:4326"
END
DEBUG ON
OUTPUTFORMAT
NAME gif
MIMETYPE "image/gif"
DRIVER "GD/GIF"
EXTENSION "gif"
IMAGEMODE PC256
TRANSPARENT TRUE
END
#######
##WEB##
#######
WEB
log "/tmp/Europe_WGS84.log"
IMAGEPATH "./tmp/"
TEMPLATE 'Donnees_test_WMS_WFS_template.html'
IMAGEURL "http://10.133.110.29/projection/Serveur_Europe/tmp/"
METADATA
"wms_title" "Europe_France_WGS84"
"wms_onlineresource"
"http://10.133.110.29/cgi-bin/mapserv.exe?map=C:/ms4w/Apache/htdocs/projection/Serveur_Europe/Europe.map&"
"wms_srs" "epsg:4326 epsg:27582
epsg:2154 epsg:27571 epsg:27572 epsg:27573 "
END
END
##########
##Europe##
##########
LAYER
NAME "Europe_WGS84"
DATA "Europe_region"
STATUS ON
TYPE POLYGON
DUMP TRUE
TEMPLATE "query.html"
TOLERANCE 3
TOLERANCEUNITS PIXELS
METADATA
"wms_title" "Europe_WGS84"
#"wms_srs" "epsg:27582 epsg:2154
epsg:27571 epsg:27572 epsg:27573 epsg:4326"
END
CLASS
COLOR 0 231 193
OUTLINECOLOR 32 32 32
END
PROJECTION
#"epsg:4326"
END
END
END
Server 2:
########################################################################################################################
########################################################################################################################
#############
##MAP###################################################################################################################
########################################################################################################################
#############
########################################################################################################################
########################################################################################################################
#############
MAP
NAME Proj_France_L2
EXTENT 47700 1620400 1197900 2677200
IMAGETYPE gif
SIZE 800 600
SHAPEPATH "data"
DEBUG ON
OUTPUTFORMAT
NAME gif
MIMETYPE "image/gif"
DRIVER "GD/GIF"
EXTENSION "gif"
IMAGEMODE PC256
TRANSPARENT TRUE
END
PROJECTION
"proj=lcc"
"ellps=clrk80"
"lat_1=45.898919"
"lat_2=47.696014"
"lat_0=46.8"
"lon_0=2.337229166666667"
"x_0=600000.0"
"y_0=2200000.0"
"units=m"
"no_defs"
#"init=epsg:43
#"init=epsg:4326" #PROJ EUROPE
#"init=epsg:27582" #PROJ L2
#"init=epsg:2154" #PROJ L93
#"EPSG:27571" #PROJ LZ1
#"EPSG:27572" #PROJ LZ2
#"EPSG:27573" #PROJ LZ3
END
#######
##WEB##
#######
WEB
log "/tmp/France_Lambert2.log"
IMAGEPATH "./tmp/"
TEMPLATE 'Donnees_test_WMS_WFS_template.html'
IMAGEURL "http://10.133.110.29/projection/Serveur_France/tmp/"
METADATA
"wms_title" "Test_France"
"wms_onlineresource"
"http://10.133.110.29/cgi-bin/mapserv.exe?map=C:/ms4w/Apache/htdocs/projection/Server_France/France_L2.map&"
"wms_srs" "epsg:27582 epsg:4326
epsg:2154 epsg:27571 epsg:27572 epsg:27573"
END
END
#############
##France_L2##
#############
LAYER
NAME "France_L2"
DATA "France_L2"
STATUS ON
TYPE POLYGON
DUMP TRUE
TEMPLATE "query.html"
TOLERANCE 3
TOLERANCEUNITS PIXELS
CLASS
COLOR 200 231 193
OUTLINECOLOR 32 32 32
END
PROJECTION
#"init=epsg:4326" #PROJ EUROPE
"init=epsg:27582" #PROJ L2
#"init=epsg:2154" #PROJ L93
#"EPSG:27571" #PROJ LZ1
#"EPSG:27572" #PROJ LZ2
#"EPSG:27573" #PROJ LZ3
END
METADATA
"wms_title" "France_L2"
"wms_srs" "epsg:27582 epsg:4326
epsg:2154 epsg:27571 epsg:27572 epsg:27573"
END
END
END
Sorry for the mistake, and thanks for the help, I'm going crazy with all that ;)
Vincent
> Hi Paul,
>
> I think you're right, and my data have good projection coord with WFS
> server.
>
>
> Here is my WMS server's Mapfile :
>
> Server 1 (epsg 27582) :
>
>
>
########################################################################################################################
########################################################################################################################
#############
>
##MAP###################################################################################################################
########################################################################################################################
#############
>
########################################################################################################################
########################################################################################################################
#############
>
>
>
> MAP
>
> NAME France_WFS_L2
> EXTENT 47700 1620400 1197900 2677200
> IMAGETYPE gif
> SIZE 800 600
> SHAPEPATH "data"
>
> DEBUG ON
>
> OUTPUTFORMAT
> NAME gif
> MIMETYPE "image/gif"
> DRIVER "GD/GIF"
> EXTENSION "gif"
> IMAGEMODE PC256
> TRANSPARENT TRUE
> END
>
> PROJECTION
> "init=epsg:27582"
> END
>
> #######
> ##WEB##
> #######
>
>
> WEB
> log "./tmp/France_Lambert2.log"
> IMAGEPATH
> "C:/ms4w/Apache/htdocs/projection/Serveur_France/tmp/"
> TEMPLATE 'Donnees_test_WMS_WFS_template.html'
> IMAGEURL "http://10.133.110.29/projection/Serveur_France/tmp/"
> METADATA
> "wfs_title" "France_WFS_test"
> "wfs_onlineresource"
>
"http://10.133.110.29/cgi-bin/mapserv.exe?map=C:/ms4w/Apache/htdocs/projection/Serveur_France/France_L2_WFS.map&"
> "wfs_schemas_location" "http://ogc.dmsolutions.ca"
> "wfs_srs" "epsg:27582"
> END
>
> END
>
>
> #############
> ##France_L2##
> #############
>
>
> LAYER
> NAME "France_L2_WFS"
> DATA "France_L2"
> STATUS ON
> TYPE POLYGON
> DUMP TRUE
> TEMPLATE "query.html"
> TOLERANCE 3
> TOLERANCEUNITS PIXELS
>
> METADATA
> "wfs_title" "France_L2_WFS"
> END
>
> CLASS
> COLOR 200 231 193
> OUTLINECOLOR 32 32 32
> END
>
> END
>
>
> END
>
>
>
> Server 2 (epsg 4326) :
>
>
>
########################################################################################################################
########################################################################################################################
#############
>
##MAP###################################################################################################################
########################################################################################################################
#############
>
########################################################################################################################
########################################################################################################################
#############
>
>
>
> MAP
>
> NAME Europe_WFS_Name
> EXTENT -34.5523788 26.2114230 72.2516881 83.340374 #EXTENT -4760555
> -1058700 4505870 8245049 IMAGETYPE gif SIZE 800 600 SHAPEPATH "data"
>
> PROJECTION
> "init=epsg:4326"
> #"init=epsg:27582" #PROJ L2
> END
>
> DEBUG ON
>
> OUTPUTFORMAT
> NAME gif
> MIMETYPE "image/gif"
> DRIVER "GD/GIF"
> EXTENSION "gif"
> IMAGEMODE PC256
> TRANSPARENT TRUE
> END
>
>
>
>
> #######
> ##WEB##
> #######
>
>
> WEB
> log "/tmp/Europe_WGS84.log"
> IMAGEPATH
> "C:/ms4w/Apache/htdocs/projection/Serveur_Europe/tmp/"
> TEMPLATE 'Donnees_test_WMS_WFS_template.html'
> IMAGEURL "http://10.133.110.29/projection/Serveur_Europe/tmp/"
> METADATA
> "wfs_title" "Europe_WFS_WEB"
> "wfs_onlineresource"
>
"http://10.133.110.29/cgi-bin/mapserv.exe?map=C:/ms4w/Apache/htdocs/projection/Serveur_Europe/Europe_WFS.map&"
> "wfs_srs" "epsg:27582"
> "wfs_schemas_location" "http://ogc.dmsolutions.ca"
> END
>
> END
>
>
>
>
> ##########
> ##Europe##
> ##########
>
>
> LAYER
> NAME "Europe_WFS"
> DATA "Europe_region"
> STATUS ON
> TYPE POLYGON
> DUMP TRUE
> TEMPLATE "query.html"
> TOLERANCE 3
> TOLERANCEUNITS PIXELS
>
> METADATA
> "wfs_title" "Europe_WFS"
> END
>
> CLASS
> COLOR 0 231 193
> OUTLINECOLOR 32 32 32
> END
>
> END
>
> END
>
>
>
> This is my 2 Mapfiles. If I give the same output projection to my 2
> WMS server and my WMS client, all data superimpose with the right
> coordinates.
>
> But if it's not the fact, all data are like in the jpeg join with the
> mail.
>
> If you see somethink strange, thank you a lot for the help
>
> Vincent
>
>
>
>
>
> > Hello Vincent,
> >
> > I did not have a look at the whole thread when I first
replied.
> > In fact, as Ed suggested, it would be very usefull if you
> could post the mapfiles you are using to the list.
> > I don't think there is any PROJ.4 related problem (as long
> as your projection definitions are correct) but more likely a
> > misconfiguration in one of your mapfiles as you wrote that
> you can properly display all layers if they are accessed
> > locally and referenced in a single mapfile. Am I right?
> >
> > Paul
> >
> > -----Original Message-----
> > From: UMN MapServer Users List
> [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On Behalf Of
vincent.dacol
> > Sent: Thursday, May 26, 2005 10:52 AM
> > To: MAPSERVER-USERS at LISTS.UMN.EDU
> > Subject: Re: [UMN_MAPSERVER-USERS] WMS and reprojection
> >
> > Thanks for the help and the idea.
> >
> > I don't know if it is abble to solve my problem, I have try
> to decribe the projection like you said, but T don't have
> > any change one screen :(
> >
> > I give you a "impscreen" with a visualisation of my probleme.
> > But it seem it's a PROJ4 pb.
> >
> > A strange think, all work great when I use WFS server with
> the same projection as my WMS server. All layer display at
> > the right place (except the europe layer who is not display
> because he use an other projection unit). Strange isn't
> > it???
> >
> > have a nice day,
> >
> > Vincent
> >
> >
> >
> > > Hello Vincent,
> > >
> > > I would suggest that you describe the projection in your
> > mapfile, at least for debug purposes.
> > > If you have a prj file coming e.g. with Arcgis, it is fairly
> > easy.
> > > Then you avoid using +pm=paris and specify lon_0.
> > >
> > > For this WKT definition (probably equivalent to a
LambertIIE):
> > >
> >
>
PROJCS["France_IMAGE2000",GEOGCS["GCS_NTF",DATUM["D_NTF",SPHEROID["Clarke_1880_IGN",6378249.2,293.46602]],PRIMEM["Greenw
> > >
> >
>
ich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",600000.0],P
> > >
> >
>
ARAMETER["False_Northing",2200000.0],PARAMETER["Central_Meridian",2.337229166666667],PARAMETER["Standard_Parallel_1",45.
> > >
> >
>
898919],PARAMETER["Standard_Parallel_2",47.696014],PARAMETER["Latitude_Of_Origin",46.8],UNIT["Meter",1.0]]
> > >
> > > I am using this projection section in my mapfile:
> > > PROJECTION
> > > "proj=lcc"
> > > "ellps=clrk80"
> > > "lat_1=45.898919"
> > > "lat_2=47.696014"
> > > "lat_0=46.8"
> > > "lon_0=2.337229166666667"
> > > "x_0=600000.0"
> > > "y_0=2200000.0"
> > > "units=m"
> > > "no_defs"
> > > END
> > >
> > > Also check whether or not you need to use the +towgs84
> > parameter...
> > >
> > > HTH
> > > Paul
> > >
> > > -----Original Message-----
> > > From: UMN MapServer Users List
> > [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On Behalf Of
> vincent.dacol
> > > Sent: Thursday, May 26, 2005 9:17 AM
> > > To: MAPSERVER-USERS at LISTS.UMN.EDU
> > > Subject: Re: [UMN_MAPSERVER-USERS] WMS and reprojection
> > >
> > > Hi Francois,
> > >
> > > I have found what doesn't really work in my WMS server. The
> > reprojection really work well now. But the probleme is the
> > > (x,y) position the differents layers who are in local French
> > epsg projection system. All are not at the right place.
> > >
> > > I think it's a problem of PROJ4 epsg definition. But I don't
> > realy know how solve it.
> > >
> > > Have you some tips or technique to resolve that sort of
> problem?
> > >
> > > Thank for your help.
> > >
> > > Vincent
> > >
> > >
> > >
> > >
> > > > Hi (again) Vincent,
> > > >
> > > > If you have a look to epsg file contained in proj 4.4.9
> > > package :
> > > > # NTF (Paris) / Lambert zone II
> > > > <27572> +proj=lcc +lat_1=46.8 +lat_0=46.8
+lon_0=-2.33722917
> > > +k_0=0.99987742
> > > > +x_0=600000 +y_0=2200000 +a=6378249.2 +b=6356515
> > > > +towgs84=-168,-60,320,0,0,0,0 +pm=paris +units=m
> +no_defs <>
> > > > # NTF (Paris) / France II
> > > > <27582> +proj=lcc +lat_1=46.8 +lat_0=46.8
+lon_0=-2.33722917
> > > +k_0=0.99987742
> > > > +x_0=600000 +y_0=2200000 +a=6378249.2 +b=6356515
> > > > +towgs84=-168,-60,320,0,0,0,0 +pm=paris +units=m
> +no_defs <>
> > > >
> > > > Looks the same ... If you look to Lambert II Etendu (ie.
> > > France II)
> > > > parameters
> > > >
> > >
> >
>
http://www.ign.fr/telechargement/education/fiches/geodesie/projections.pdf
> > > > It seems that for Lambert II zone 27572, y_0 should be
> > > 200000 and lon_0, 0 ?
> > > > And for France II lon_0 should be 0 ! Anyone using French
> > > coordinate systems
> > > > having the same troubles ?
> > > >
> > > > I'm currently using these parameters for France II.
> > > > <27582> +proj=lcc +lat_1=46.8 +lat_0=46.8 +lon_0=0
> > > +k_0=0.99987742
> > > > +x_0=600000 +y_0=2200000 +a=6378249.2 +b=6356515
> > > > +towgs84=-168,-60,320,0,0,0,0 +pm=paris +units=m
> +no_defs <>
> > > >
> > > > Any ideas ?
> > > >
> > > > Francois
> > > >
> > > > > -----Message d'origine-----
> > > > > De : UMN MapServer Users List
> > > > [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] De la
> > > > > part de vincent.dacol
> > > > > Envoyé : mercredi 25 mai 2005 11:40 À :
> > > > > MAPSERVER-USERS at LISTS.UMN.EDU Objet :
> [UMN_MAPSERVER-USERS] WMS
> > > > > and reprojection
> > > > >
> > > > > Hi everybody,
> > > > >
> > > > > I'm a student and I'm disovering the world of
> Mapserver and
> > > > > interoperabillity.
> > > > >
> > > > > I'm trying to use 2 WMS services in different
projections,
> > > > and one client to
> > > > > display two layer from that server.
> > > > >
> > > > > But the reprojection didn't work in the client. The 2
> layer
> > > > obtain with the
> > > > > 2 WMS server aren't display in the same projection.
> > > > >
> > > > > The projection of my WMS server 1 is "init=epsg:27571"
> > > > > The projection of my WMS server 2 is "init=epsg:27582"
> > > > >
> > > > > This two server can serv :
> > > > > "wms_srs" "EPSG:27582 EPSG:27571"
> > > > >
> > > > > The projection I want to display with the client is
> > > > "init=epsg:27582"
> > > > >
> > > > > When I use the 2 layers in local, there is no
> supperposition
> > > > problem, the
> > > > > picture obtain was fine, the reprojection work.
> > > > >
> > > > > But with the WMS client, the first layer is in it's own
> > > > projection, and the
> > > > > second too. So the 2 layer arn't supperposed, it seem
> there
> > > > is no
> > > > > reprojection.
> > > > >
> > > > > Is-it a reprojection probleme?
> > > > >
> > > > > My opignon is that a single mapfile with multiple
> > > > connections to different
> > > > > WMS server must only connect to server who are in
the same
> > > > projection.
> > > > >
> > > > > Maybe I'm wrong, I really new to Mapserver, but I have
> spend
> > > > a lot of time
> > > > > one this probleme, and the only solution I have find the
> > > > solve it is to use
> > > > > the same output projection in the client and in the WMS
> > > server.
> > > > >
> > > > > But this solution isn't very logical for me. I want to
> > > > connect to a server
> > > > > who use is own projection, and can serve data in other
> > > > predefined EPSG
> > > > > projection. So a WMS client use a WMS layer has a local
> > > > layer, with is own
> > > > > projection output, and is abble to reproject the data
> obtain
> > > > in the WMS
> > > > > layer.
> > > > >
> > > > >
> > > > > Thanks for the help (I really need it).
> > > > >
> > > > > Vincent
> > > > >
> > > > > Accédez au courrier électronique de La Poste :
> > > www.laposte.net ;
> > > > > 3615 LAPOSTENET (0,34€/mn) ; tél : 08 92 68 13 50
> (0,34€/mn)
> > > > >
> > > > >
> > > > >
> > > > > --
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> sont
> > > > personnels, confidentiels et prives. Toute publication,
> > > utilisation ou
> > > > diffusion, meme partielle, doit etre autorisee.
> > > > >
> > > > > Any data and information contained in this
electronic mail
> > > > is personal, confidential and secret. Any total or partial
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> > > > or distribution must be authorized.
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> > > > >
> > > >
> > > > Accédez au courrier électronique de La Poste :
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> > > > --
> > > > Ce message a ete verifie par MailScanner pour des virus ou
> > > des polluriels et
> > > > rien de suspect n'a ete trouve.
> > > >
> > > > Les donnees et renseignements contenus dans ce message
sont
> > > personnels,
> > > > confidentiels et prives. Toute publication, utilisation ou
> > > diffusion, meme
> > > > partielle, doit etre autorisee.
> > > >
> > > > Any data and information contained in this electronic mail
> > > is personal,
> > > > confidential and secret. Any total or partial publication,
> > > use or
> > > > distribution must be authorized.
> > > >
> > > >
> > > > --
> > > > Ce message a ete verifie par MailScanner pour des virus ou
> > > des polluriels et rien de suspect n'a ete trouve.
> > > >
> > > > Les donnees et renseignements contenus dans ce message
sont
> > > personnels, confidentiels et prives. Toute publication,
> > utilisation ou diffusion, meme partielle, doit etre autorisee.
> > > >
> > > > Any data and information contained in this electronic mail
> > > is personal, confidential and secret. Any total or partial
> > publication, use or distribution must be authorized.
> > > >
> > >
> > > Accédez au courrier électronique de La Poste :
> www.laposte.net ;
> > > 3615 LAPOSTENET (0,34€/mn) ; tél : 08 92 68 13 50 (0,34€/mn)
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> > >
> > >
> >
> > Accédez au courrier électronique de La Poste :
www.laposte.net ;
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> >
> >
> >
> >
>
> Accédez au courrier électronique de La Poste :
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>
>
>
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