The layer has recorded the last error; produced by the last attempt to render it. If this value is non null a error icon appears on the layer; and you can see the message when the layer is selected in the status bar.
You can check this value yourself as a programmer; getStatusMessage; and check if the layer is in error using getStatus() == Layer.ERROR 2009/5/22 Mario Nuñez Jimenez <mario.nu...@atosresearch.eu>: > Mmmh I am not sure if I did explain myself properly... > anyway remember that the thing I am trying to achieve is to know when a layer > rendering has failed and when a layer rendering has works fine again. > This is to put a replacement layer if my main ones fail on rendering or to > quit the replacement layer if my main ones works fine again. > Regards. > > -----Original Message----- > From: udig-devel-boun...@lists.refractions.net > [mailto:udig-devel-boun...@lists.refractions.net] On Behalf Of Jody Garnett > Sent: viernes, 22 de mayo de 2009 8:24 > To: User-friendly Desktop Internet GIS > Subject: Re: [udig-devel] Catch and deal with rendering errors on mapview > > Here is a picture of what that looks like: > > The local geotiff I use displays instantly; the wms tile server takes > a while to come in the first time; but after that it is fast > (especially if you turn on disk caching so the tiles last between > runs). Any other layers I display on top of that can still fail - but > at the last I will have a good base layer offering my users context. > > Jody > >> You do not need to try them in order ... arrange them in a map (as a >> list of layers) in the order: >> - wms layer (that may fail) >> - wms tile server (much more stable and responsive) >> - local jpeg > ------------------------------------------------------------------ > This e-mail and the documents attached are confidential and intended > solely for the addressee; it may also be privileged. If you receive > this e-mail in error, please notify the sender immediately and destroy it. > As its integrity cannot be secured on the Internet, the Atos Origin > group liability cannot be triggered for the message content. Although > the sender endeavours to maintain a computer virus-free network, > the sender does not warrant that this transmission is virus-free and > will not be liable for any damages resulting from any virus transmitted. > > Este mensaje y los ficheros adjuntos pueden contener informacion confidencial > destinada solamente a la(s) persona(s) mencionadas anteriormente > pueden estar protegidos por secreto profesional. > Si usted recibe este correo electronico por error, gracias por informar > inmediatamente al remitente y destruir el mensaje. > Al no estar asegurada la integridad de este mensaje sobre la red, Atos Origin > no se hace responsable por su contenido. Su contenido no constituye ningun > compromiso para el grupo Atos Origin, salvo ratificacion escrita por ambas > partes. > Aunque se esfuerza al maximo por mantener su red libre de virus, el emisor > no puede garantizar nada al respecto y no sera responsable de cualesquiera > danos que puedan resultar de una transmision de virus. > ------------------------------------------------------------------ > > _______________________________________________ > User-friendly Desktop Internet GIS (uDig) > http://udig.refractions.net > http://lists.refractions.net/mailman/listinfo/udig-devel > _______________________________________________ User-friendly Desktop Internet GIS (uDig) http://udig.refractions.net http://lists.refractions.net/mailman/listinfo/udig-devel
