Re: FW: Way to programatically determine if an opendap served file is IDV viewable?

see

 http://www.unidata.ucar.edu/projects/THREDDS/tech/tutorial/Viewers.html

and class

 thredds.servlet.ViewServlet.IDV

Anne Wilson wrote:

> Hi Marc, Tom, and John,
>
> I am not sure what the exact criteria are for IDV viewability, nor how 
> to best implement that via THREDDS.   (My experience in this area 
> involves determining what access URLs to generate via the netcdf-java 
> library, and I suspect there are other, probably better, methods than 
> those.)  Plus, I think there are some possibly subtle gotchas.  Hence 
> I'm forwarding this message on to John.
>
> John, how would you propose determining if a file is viewable by the 
> IDV?  How does the html writer code that generates the "Viewers" list 
> in the html pages determine which viewers to list?  Don mentioned an 
> "isViewable" method - is that available?
>
> (John is traveling over the next few days, so there may be a delay in 
> his response.)
>
> Thanks!
>
> Anne
>
> Marcus A Christie wrote:
>
> > Tom Baltzer wrote:
> >
> > > Hi Marc,
> > >
> > > This is what Don had to say about determining IDV viewability of a data
> > > file. Hope this helps.  I know Anne has worked with THREDDS 
> > > libraries and may have
> > > some comments so I'll cc her.
> >
> > So I could do this with netcdf-Java 2.2:
> >
> > ThreddsDataFactory tdf = new ThreddsDataFactory();
> > ThreddsDataFactory.Result result = 
> > tdf.openDataType("http://chinkapin.cs.indiana.edu:8080/thredds/dodsC/data/mylead-repos/urn_uuid_add12e39-1101-4385-9257-2b1e0efa817b";, 
> > null);
> > boolean isViewable = false;
> > if (result.dataType.equals(DataType.GRID) || 
> > result.dataType.equals(DataType.RADIAL)) {
> >   isViewable = true;
> > }
> >
> > ??
> >
> > Thanks,
> >
> > Marc
> >
> > > > -----Original Message-----
> > > > From: Don Murray [mailto:address@hidden]
> > > > Sent: Thursday, March 08, 2007 3:13 PM
> > > > To: Tom Baltzer
> > > > Subject: Re: Way to programatically determine if an opendap served 
> > > > file is
> > > > IDV viewable?
> > > >
> > > > Hi Tom-
> > > >
> > > > Tom Baltzer wrote:
> > > >
> > > > > So the IU folks are wondering if there is a way to programatically
> > > >
> > > > determine
> > > >
> > > > > if an opendap served file is IDV viewable.  What would you suggest?
> > > >
> > > >  From a THREDDS catalog:
> > > >
> > > > if (dataType.equals(DataType.GRID) ||
> > > >      dataType.equals(DataType.RADIAL)) ;-)
> > > >
> > > > John was working on some method like "isViewable", but I'm
> > > > not sure what that was all about.
> > > >
> > > >
> > > > Don
> > > > *************************************************************
> > > > Don Murray                               UCAR Unidata Program
> > > > address@hidden                        P.O. Box 3000
> > > > (303) 497-8628                              Boulder, CO 80307
> > > > http://www.unidata.ucar.edu/staff/donm
> > > > *************************************************************