WMS GetMap and SVG

[ivano.picco@…]

Hi!
Still workin' on get SVG map, I think it's stable enough to get support on WMS
getmap method. 
I made a patch to do this:

diff -Nru mapserver-4.6.0-beta1/mapoutput.c mapserver-4.6.0-beta2/mapoutput.c
--- mapserver-4.6.0-beta1/mapoutput.c   2005-04-07 19:23:16.000000000 +0200
+++ mapserver-4.6.0-beta2/mapoutput.c   2005-05-11 11:36:25.000000000 +0200
@@ -927,7 +927,8 @@

         if( j == mime_count && map->outputformatlist[i]->driver &&
             (strncasecmp(map->outputformatlist[i]->driver, "GD/", 3)==0 ||
-             strncasecmp(map->outputformatlist[i]->driver, "GDAL/", 5)==0))
+             strncasecmp(map->outputformatlist[i]->driver, "GDAL/", 5)==0 ||
+             strcasecmp(map->outputformatlist[i]->driver, "svg")==0))
             mime_list[mime_count++] = map->outputformatlist[i]->mimetype;
     }

diff -Nru mapserver-4.6.0-beta1/mapwms.c mapserver-4.6.0-beta2/mapwms.c
--- mapserver-4.6.0-beta1/mapwms.c      2005-04-22 17:50:46.000000000 +0200
+++ mapserver-4.6.0-beta2/mapwms.c      2005-05-11 11:36:25.000000000 +0200
@@ -755,7 +755,8 @@

       if( format == NULL ||
           (strncasecmp(format->driver, "GD/", 3) != 0 &&
-           strncasecmp(format->driver, "GDAL/", 4) != 0))
+           strncasecmp(format->driver, "GDAL/", 4) != 0 &&
+           strcasecmp(format->driver, "svg") != 0))
         {
           msSetError(MS_IMGERR,
                    "Unsupported output format (%s).",
@@ -1783,6 +1784,7 @@
 #ifdef USE_GD_WBMP
                       "<WBMP />"
 #endif
+                      "<SVG />"
                       , NULL);
     msWMSPrintRequestCap(nVersion, "Capabilities", script_url_encoded,
"<WMS_XML />", NULL);
     msWMSPrintRequestCap(nVersion, "FeatureInfo", script_url_encoded, "<MIME
/><GML.1 />", NULL);

I Hope it can be usefull.
Nice day,
Ivano

[dmorissette]

Assefa, can you please check this when you have a chance? Would anything else be
required to support SVG through WMS?

[ivano.picco@…]

Build against MapServer 4.6.0

[dmorissette]

Assefa, this change seems very straightforward. Is it really all that's needed to allow SVG output via WMS? Do you think it would be safe to add this now (before 5.0-beta1)?

[ivanopicco]

Hi all, I have renewed this bug simply to point out its presence. I think it can be done better if we could specify the image type supported by our WMS service, maybe with a "WMS_IMAGETYPE" metadata at MAP level in mapfile, something like this:

MAP

... SIZE 550 400 IMAGETYPE PNG24 IMAGECOLOR 255 255 255

WEB

METADATA

"WMS_TITLE" "Example" "WMS_ABSTRACT" "Example Example" "WMS_SRS" "epsg:26591 epsg:32632" "wms_extent" "1492364 4915081 1499498 4926079" "wms_imagetype" "PNG24 GIF SVG KML"

END

END

...

END

[assefa]

there is a ticket opened on the last comment ​http://trac.osgeo.org/mapserver/ticket/455

My intention is to add svg support for 5.0 and we could rvisit ticket 455 for better support with user control of wms output format

[assefa]

SVG is now valid for wms getmap request r6418