[mapserver-dev] doubt about labels and layers charts type
Annabell Schelton Lima
aschelton at uci.cu
Thu Dec 15 20:55:26 EST 2011
Hi list, i need some help cause i'm trying to insert labels into a layer charts type , but i think that´s not possible, specifically i need put over the graphic, the each variable value that contains the graphic, any idea??
Best Regards.
----- Mensaje original -----
De: "Jachym Cepicky" <jachym.cepicky at gmail.com>
Para: mapserver-dev at lists.osgeo.org
Enviados: Jueves, 15 de Diciembre 2011 19:31:21
Asunto: [mapserver-dev] Re: bug in mapserver WFS 1.1 client and axis order?
I had a look into the mapserver source code, at mapwfslayer.c and I
would say, the wfs 1.1 axis order issue is *NOT* handeled there.
My C skills together with my knowledge of the code base of mapserver
are too poor, but little experimenting gave me the WFS request, going
to remote server, with correct axes order in BBOX parameter:
Index: mapwfslayer.c
===================================================================
--- mapwfslayer.c (revision 12900)
+++ mapwfslayer.c (working copy)
@@ -431,11 +431,20 @@
snprintf(pszURL + strlen(pszURL), bufferSize-strlen(pszURL),
"&FILTER=%s",
msEncodeUrl(psParams->pszFilter));
}
- else
- snprintf(pszURL + strlen(pszURL), bufferSize-strlen(pszURL),
- "&BBOX=%.15g,%.15g,%.15g,%.15g",
- bbox->minx, bbox->miny, bbox->maxx, bbox->maxy);
-
+ else {
+ /* we have to take care on the axis order in WFS 1.1.0 */
+ if(strncmp(pszVersion,"1.1",3) == 0) {
+ /*
+ msFreeProjection(&lp->projection);
+ msLoadProjectionStringEPSG(&(lp->projection),
"epsg:4326"); <- brutal-force experiment method, this works
+ */
+ msAxisNormalizePoints(&(lp->projection) , 1,
&(bbox->minx), &(bbox->miny) ); /* <- this does not work, there is
no epsgaxis=ne in the lp->projection */
+ msAxisNormalizePoints(&(lp->projection), 1,
&(bbox->maxx), &(bbox->maxy) );
+ }
+ snprintf(pszURL + strlen(pszURL), bufferSize-strlen(pszURL),
+ "&BBOX=%.15g,%.15g,%.15g,%.15g",
+ bbox->minx, bbox->miny, bbox->maxx, bbox->maxy); /* <-
minx is miny, miny is minx. same applies for max* coordinates
+ }
if (psParams->nMaxFeatures > 0)
snprintf(pszURL + strlen(pszURL), bufferSize-strlen(pszURL),
"&MAXFEATURES=%d", psParams->nMaxFeatures);
The lp->projection does not contain "epsgaxis" parameter (used in
msAxisNormalizePoints), but then readed from EPSG string directly
msLoadProjectionStringEPSG(&(lp->projection), "epsg:4326");
it works.
I do not know, what is the best and safest way, how to make sure,
MapServer will take care about the correct axis order, when acting as
client for WFS 1.1, but the patch should point at least the point,
where to start
Would anybody be so kind and fix this issue?
Thanks
Jachym
2011/12/13 Jachym Cepicky <jachym.cepicky at gmail.com>:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hi,
>
> I have a problem with MapServer, acting as WFS 1.1.0 client, trying to
> get data from WFS 1.1.0 (geoserver), in EPSG:4326. The axes order
> *should be* swapped, AFAIK in this case, but MapServer *does not* do
> this in the request in the BBOX parameter.
>
> Example:
>
> This is generated by MapServer and does not work (Czech Republic in
> form minx,miny,maxx,maxy)
>
> http://briseide01.ingr.briseide.eu:8080/geoserver/wfs?&REQUEST=GetFeature&VERSION=1.1.0&SERVICE=WFS&TYPENAME=ccss:Flood2010_transport_roads&BBOX=14.8607842326919,50.8338629310625,15.393635878137,51.0495564151432
>
> And this returns some data - axis oder is Lat/Lon (miny,minx,maxy,maxx)
>
> http://briseide01.ingr.briseide.eu:8080/geoserver/wfs?&REQUEST=GetFeature&VERSION=1.1.0&SERVICE=WFS&TYPENAME=ccss:Flood2010_transport_roads&BBOX=50.8338629310625,14.8607842326919,51.0495564151432,15.393635878137
>
> I've created ticket to this [1] with mapfile posted, the important
> part looks like follows:
>
> 70 LAYER
> 71 CONNECTION "http://briseide01.ingr.briseide.eu:8080/geoserver/ows?"
> 72 CONNECTIONTYPE WFS
> 73 DATA "Flood2010_transport_roads"
> 74 METADATA
> 75 "wfs_extent" "14.9948950985 50.8659873396 15.2607258548
> 51.0177787275"
> 76 "wfs_request_method" "GET"
> 77 "wms_extent" "14.9948950985 50.8659873396 15.2607258548
> 51.0177787275"
> 78 "wfs_title" "Flood2010_transport_roads"
> 79 "wfs_typename" "ccss:Flood2010_transport_roads"
> 80 "gml_include_items" "all"
> 81 "wfs_version" "1.1.0"
> 82 "wms_title" "Flood2010_transport_roads"
> 83 "wfs_srs" "EPSG:4326"
> 84 END # METADATA
> 85 NAME "ccss:Flood2010_transport_roads"
> 86 PROJECTION
> 87 "init=epsg:4326"
> 88 END # PROJECTION
> 89 STATUS OFF
> 90 TEMPLATE "foo"
> 91 TILEITEM "location"
> 92 TYPE LINE
> 93 UNITS METERS
> 94 CLASS
> 95 STYLE
> 96 ANGLE 0
> 97 COLOR 238 153 0
> 98 OFFSET 0 0
> 99 OUTLINECOLOR 134 81 0
> 100 SIZE 5
> 101 WIDTH 5
> 102 END # STYLE
> 103 END # CLASS
> 104 END # LAYER
>
>
> Testing on mapserver-trunk
>
> Thanks
>
> Jachym
>
> [1] http://trac.osgeo.org/mapserver/ticket/4118
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>
> iEYEARECAAYFAk7miNYACgkQyKt0uAjU4I89egCfdGtWHL38EcQ0GVbHuq+24x+Z
> aAAAoLyktOmEXL3nYv3+198DzBTRxbKU
> =tXPU
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--
Jachym Cepicky
e-mail: jachym.cepicky gmail com
URL: http://les-ejk.cz
GPG: http://les-ejk.cz/pgp/JachymCepicky.pgp
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