SIZE in percentages?

[Steve Lime]

Does the WMS spec have a specific method to do this? I don't recall seeing anything like
that. What are other servers/vendors doing along these lines? 

Do you recall if the map_... parameters work for wms as vendor specific tags. If so then
setting adding map_resolution=300 might work right now.

Steve

>>> On 5/21/2007 at 1:39 AM, in message
<61782e4f7ccff19fa3be759a39b63f4b at 145.50.39.11>, "Bart van den Eijnden (OSGIS)"
<bartvde at OSGIS.NL> wrote:
> Hi Steve,
> 
> unfortunately this can't be applied to a WMS use case. There is no way to
> override resolution (changing the WMS server MAP file thorugh Mapscript is
> no option ofcourse). So the only way then is to have multiple MAP files, and
> no way to link them using OGC interfaces .... ? That does not sound ideal to
> me, and would require a very specific non-standard WMS client.
> 
> Alternatively, a resolution parameter should be added to the OGC GetMap
> interface, maybe as a vendor-specific tag for now.
> 
> Best regards,
> Bart
> 
>>
> Using symbol scales and then tweaking the resolution parameter is the built
> in way to do this.
> Symbol scale set the scale at which a symbol or label is exactly SIZE pixels
> tall. The resolution
> parameter (map level) affects the way in which scales are computed. The
> default is 72 pixels
> per inch which works ok for monitors but is too low for print, where value
> of 300 or higher might
> work better.
> 
> Steve
> 
>>>> On 5/16/2007 at 1:49 PM, in message
> <d9824c396b0ffd49c957786adb749aff at 83.87.144.191>, "Bart van den Eijnden
> (OSGIS)" <bartvde at OSGIS.NL> wrote:
>> Hi list,
>> 
>> we've got a problem with labels getting too small in a PDF print (not
> using
>> Mapserver's PDF output btw). The WMS image requested for the PDF print is
>> approximately 2000 x 1500 pixels, and then squeezed into an A4 PDF to get
> an
>> appropriate resolution for prints.
>> 
>> But since labels are 9 pixels only (the same MAP file is also used for a
>> webmapping application with a 600 x 400 map), they end up being too small.
>> 
>> Is there an option to have something like SIZEUNITS percentage, and then
> use
>> for instance a percentage of the image height for labels?
>> 
>> Other options currently available already?
>> 
>> Thoughts on this issue/enhancement appreciated.
>> 
>> Best regards,
>> Bart
>> 
> 
> --
> Bart van den Eijnden
> OSGIS, Open Source GIS
> http://www.osgis.nl