[OpenLayers-Users] Unsetting request parameters

[Erik Uzureau]

Hi Jon,

If you are using the svn HEAD version,
the way to disable the svn parameter is by setting
the option "projection" to "none"
...

ie:

OpenLayers.Layer.WMS1_3.prototype =
  Object.extend( new OpenLayers.Layer.WMS(), {

    DEFAULT_PARAMS: { service: "WMS",
                      version: "1.3.0",
                      request: "GetMap",
                      styles: "",
                      exceptions: "INIMAGE",
                      format: "image/png",
                      crs: "CRS:84",
                      projection: "none"
                     },


let me know if that works out alright for you... :-)
erik

On 7/24/06, Jon Blower <jdb at mail.nerc-essc.ac.uk> wrote:
> Hi all,
>
> I've created a very simple Layer type for Web Map Servers using version
> 1.3.0.  This is very similar to the existing WMS layer type, which is for
> WMS1.1.1.  My code for the WMS1.3 layer looks like this:
>
> OpenLayers.Layer.WMS1_3 = Class.create();
> OpenLayers.Layer.WMS1_3.prototype =
>   Object.extend( new OpenLayers.Layer.WMS(), {
>
>     DEFAULT_PARAMS: { service: "WMS",
>                       version: "1.3.0",
>                       request: "GetMap",
>                       styles: "",
>                       exceptions: "INIMAGE",
>                       format: "image/png",
>                       crs: "CRS:84"
>                      },
>
>     CLASS_NAME: "OpenLayers.Layer.WMS1_3"
> });
>
> This works fine, but there's a minor bug.  Note that the coordinate
> reference systems is now specified by the "CRS" parameter, not the "SRS"
> parameter that is used in WMS1.1.1.  The URLs that are generated for the
> call to the GetMap function look like this:
>
> &SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&STYLES=&EXCEPTIONS=INIMAGE
> &FORMAT=image/png&CRS=CRS:84&SRS=EPSG:4326&BBOX=...
>
> Note that the "CRS" and "SRS" parameters both appear in the URL.  This
> doesn't really matter because the "SRS" parameter is ignored by WMS1.3
> servers.  However, for the sake of neatness, is there a way of "unsetting"
> the SRS parameter so that it doesn't appear in the URL?  I tried setting
> "SRS: null" in the DEFAULT_PARAMS section of the above code but that didn't
> seem to work.
>
> Thanks in advance,
> Jon
>
>
> --------------------------------------------------------------
> Dr Jon Blower              Tel: +44 118 378 5213 (direct line)
> Technical Director         Tel: +44 118 378 8741 (ESSC)
> Reading e-Science Centre   Fax: +44 118 378 6413
> ESSC                       Email: jdb at mail.nerc-essc.ac.uk
> University of Reading
> 3 Earley Gate
> Reading RG6 6AL, UK
> --------------------------------------------------------------
>
>
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