hi everybody,
first i have to say thank you for all the answers. I tried the RGBA way by defining a RGBA Palett file with quadrupels (e.g. 0,0,0,0) for the RGBA values of my transparent colours. It´s the first time for me using RGBA so maybe I´m on the wrong way, but how do i define the transparency in the Layer section??? best wishes and thank you christoph > Hi, > > Just came into my mind that I have had problems with OFFSITE and tileindex. It > makes the desired pixel value transparent with WMS but not with WCS. At least > is > was so in the past. I have not produced WCS lately. The workaround was to > make a VRT > file from with gdalbuildvrt and use that as input for the WCS mapfile. That > way > nodata worked as it should and we got proper images out of WCS even with > warped > source images. I am not sure if I ever made a ticket from that. Perhaps not > or then > just nobody ever reacted. > > So I suppose that "OFFSITE AUTO" happens already if you use VRT as input > instead of > tileindex. I have not seen big difference in speed between tileindex and VRT. > However, I use normally tileindex system because I can open and manage the > index > files with GIS programs. > > -Jukka Rahkonen- > > Stephen Woodbridge wrote: >> Lähetetty: 9. toukokuuta 2012 16:45 >> Vastaanottaja: [email protected] >> Aihe: Re: [mapserver-users] multiple transparent colours >> >> Frank, >> >> Would it be possible to make mapserver pick up the NODATA >> value from the >> gdal source file. Maybe using a keyword like "OFFSITE AUTO". >> This would >> be especially useful when using a tileindex. >> >> Any thoughts on this? Should I create a ticket for something >> like this? >> >> -Steve W >> >> On 5/9/2012 9:36 AM, Rahkonen Jukka wrote: >> > Hi, >> > Perhaps you cannot literally set a colour as transparent in >> a tiff but >> > for sure you can define a nodata value and then >> applications can make >> > nodata pixels transparent. That is the most normal way to do it with >> > Mapserver and OFFSITE. I believe that Mapserver does not >> even care if >> > tiff has a nodata tag set but you can give whatever value >> for offsite in >> > a mapfile. >> > I have not played at all with alpha, but perhaps there is >> some way to >> > give a list of pixel values which should be transparent and >> convert them >> > all to a suitable alpha channel value. >> > -Jukka Rahkonen- >> > >> > Fernando Nortewrote: >> > Hi Christoph, >> > >> > I try to understand, how did you set the specific color to >> > transparent in a TIFF? >> > For raster you can set the level of transparency/opacity to the >> > image not to a color. >> > >> > Att, >> > >> > *Fernando Norte* >> > >> > Desenvolvedor SIGWeb >> > >> > tel.(31) 2533.9900 >> > >> > cel.(31) 9119.8814 >> > >> > skype: fernandoglobalgeo >> > >> > >> > >> > Endereço: Alameda do Ingá, 88, 6º andar, Vale do Sereno >> > >> > Nova Lima/MG - CEP: 34.000-000 >> > >> > www.globalgeo.com.br <http://www.globalgeo.com.br/> >> > >> > "O presente documento pode conter material confidencial ou seu >> > sigilo é protegido por lei. >> > Quaisquer informações nele contida são destinadas exclusivamente >> > ao(s) seu(s) destinatário(s) >> > não devendo em nenhuma hipótese ser repassado a terceiros". >> > >> > >> > >> > >> > 2012/5/9 Christoph Schumacher >> > [email protected] >> > mailto:[email protected] >> > >> > Hello everybody, >> > >> > I have a problem setting up my wms. >> > I have multiple tiff images that have different >> colours to be >> > set up as transparaent. >> > >> > With the offsite parameter I can only set one >> colour transparent. >> > >> > Now my question is: Is there a way to make various colour >> > transparent?? >> > >> > >> > best wishes and thank you very much >> > >> > christoph >> > >> > >> > _______________________________________________ >> > mapserver-users mailing list >> > [email protected] >> > mailto:[email protected] >> > http://lists.osgeo.org/mailman/listinfo/mapserver-users >> > >> > >> > >> > >> > _______________________________________________ >> > mapserver-users mailing list >> > [email protected] >> > http://lists.osgeo.org/mailman/listinfo/mapserver-users >> >> _______________________________________________ >> mapserver-users mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/mapserver-users >> _______________________________________________ > mapserver-users mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/mapserver-users > -- Freundliche Grüße planungsbüro schumacher Im Auftrag gez. Christoph Schumacher Telefon 02262 7205-13 __________________________________________________________________ pbs planungsbüro schumacher Dipl.-Ing. Jürgen Schumacher Oststraße 8, 51674 Wiehl Telefon 02262 7205-0, Fax 02262 7205-6 [email protected] http://www.pbs-schumacher.de __________________________________________________________________ Wir garantieren nicht für Fehler- bzw. Virenfreiheit der E-Mail und/oder angehängten Dateien. Für Schäden, die aus der Nutzung der Daten entstehen, übernehmen wir keine Haftung. Bitte prüfen Sie die Daten vor der Nutzung. _______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users
