[OpenLayers-Dev] Poor Image Quality

[Bradley Mclain]

Sorry for the triple reply but I managed to solve it by editing the
Mapserver/Untiled.js file to have default image type as png24.

On 7/11/07, Bradley Mclain <bradleym06 at gmail.com> wrote:
>
> Little update which might help shed some light on the matter. I saved that
> particular layer and it is a PNG format
>  not PNG24 or jpeg, so somehow OpenLayers request to Mapserver is ignoring
> the new formats.
>
> I did WMS URL requests to Mapserver and it returns the correct formats.
>
> On 7/11/07, Bradley Mclain < bradleym06 at gmail.com> wrote:
> >
> > For some reason this is not working for me, I changed the settings in
> > the Mapfile and defined the OUTPUTFORMAT and then added the
> > format:'image/png', to my Openlayers folder. I even tried changing my
> > mapfile to export as jpeg so as to match Openayers but no luck.
> >
> > Could it have something to do with that I am using the MapServer.Untiledlayer function instead of a
> > WMS.Untiled layer?
> >
> > On 7/10/07, Andrew Hughes <azza at lisasoft.com> wrote:
> > >
> > >  Bart's correct... but just be warned.... jpeg is A LOT smaller is
> > > size than png-24. There's a reason why jpeg is the default in OpenLayers.
> > >
> > > --AH
> > >
> > > Bart van den Eijnden (OSGIS) wrote:
> > >
> > > OpenLayers uses jpeg by default for WMS layers, so change it in the
> > > constructor of your WMS.Untiled layer:
> > >
> > > 'format':'image/png', i.e.:
> > >
> > > baselayer0 = new OpenLayers.Layer.WMS.Untiled
> > >
> > >
> > > ( "Standaard",
> > >
> > > "http://test.intranet.rijkswaterstaat.nl/services/geoservices/startkaart?"
> > >
> > >
> > >  <http://test.intranet.rijkswaterstaat.nl/services/geoservices/startkaart?>,
> > > {layers: 'startkaart', 'format':'image/png', 'transparent':'TRUE'},
> > > {'numZoomLevels': 12, 'ratio':1, isBaseLayer: true} );
> > >
> > > Also check you have image/png mapped as a mimetype for PNG24 in your
> > >
> > >
> > >
> > > Mapserver MAP file (OUTPUTFORMAT section).
> > >
> > > Best regards,
> > > Bart
> > >
> > > --
> > > Bart van den Eijnden
> > > OSGIS, Open Source GIS
> > >
> > >
> > >
> > > http://www.osgis.nl
> > >
> > >
> > > --------- Oorspronkelijk bericht --------
> > > Van: Bradley Mclain <bradleym06 at gmail.com> <bradleym06 at gmail.com>
> > > Naar: OpenLayers ML <dev at openlayers.org> <dev at openlayers.org>
> > > Onderwerp: [OpenLayers-Dev] Poor Image Quality
> > > Datum: 10/07/07 05:07
> > >
> > >
> > >
> > >  I am importing an image as an untiled Mapserver layer into OpenLayers and
> > >
> > >  it is of extremely good quality but when it shows up in OpenLayers it&#39;s
> > > quality is terrible.The image when viewed through Mapserver is not as good
> > > as the original but it still much better than what it is showing up as in
> > >
> > >
> > >
> > > OpenLayers. I have my Mapserver image format as PNG24.
> > >
> > >  Any ideas on what might be causing this and how to fix it?CheersBrad
> > >
> > >
> > >
> > >
> > >
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> > >
> > > --
> > >
> > > Regards,
> > >
> > > *Andrew Hughes*
> > > Software Engineer
> > > LISAsoft Pty. Ltd. (Adelaide)
> > >
> > > ------------------------------
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