Re: [OpenMap Users] BIL and VPF Format Questions

Hi Don,

thanks for the info. I renamed the directories to match what OpenMap is
looking for and DescribeDB ran successfully. The '//' in the path name does
not cause any problem.

I have managed to display VPF layers with edge and area features. However, I
cant display a feature that DescribeDB reports as [entity point feature]. If
I specify 'entity' or 'point' in the properties file I just get the message

    LocalGraphicsWarehouseSupport: ignoring feature: point (or entity)

How is [entity point feature] handled?

Thanks,
Paul

----- Original Message -----
From: "Don Dietrick" <dietrick@bbn.com>
To: "Paul Chisholm" <paulch@bigpond.com>
Cc: <openmap-users@bbn.com>
Sent: Thursday, November 07, 2002 6:07 AM
Subject: Re: [OpenMap Users] BIL and VPF Format Questions

> Hi Paul,
>
> On Wednesday, November 6, 2002, at 03:05 AM, Paul Chisholm wrote:
>
> > A couple of questions:
> >
> > 1) BIL Format
> >
> > I have a raster dataset in BIL format. I see no mention of this in the
> > documentation so I guess its not supported. Is there any way to
> > convert BIL
> > format data to a format supported by OpenMap?
>
> I don't know that much about the BIL format. If you can find a Java
> method for reading it in, though, it wouldn't be that hard to use it
> after that.
>
> > 2) VPF Format
> >
> > I have a vector dataset in VPF format and I am running the DescribeDB
> > utility as stated in the OpenMap faq. When I run it I get the following
> > output:
> >
> > *****************************
> > Path to database: Global_Map
> > Database Name: globalm
> > Database Description: Generated Digital data based on the Global Map
> > Specification.
> > Database Libraries: area
> >
> > area:
> > area:uses tiled data
> > area:Coverage names:pop bnd trans tileref hydro
> > area:pop:Coverage Description: Population
> > area:pop:Coverage Topology Level: 3
> > CoverageTable: java.io.FileNotFoundException: BinaryFile can't find:
> > Global_Map/area/pop//fcs.
> > area:pop:FeatureClassNames:
> > area:bnd:Coverage Description: Boundaries
> > area:bnd:Coverage Topology Level: 3
> > CoverageTable: java.io.FileNotFoundException: BinaryFile can't find:
> > Global_Map/area/bnd//fcs.
> > area:bnd:FeatureClassNames:
> > area:trans:Coverage Description: Transportation
> > area:trans:Coverage Topology Level: 3
> > CoverageTable: java.io.FileNotFoundException: BinaryFile can't find:
> > Global_Map/area/trans//fcs.
> > area:trans:FeatureClassNames:
> > area:tileref:Coverage Description: Tile Reference
> > area:tileref:Coverage Topology Level: 3
> > area:tileref:FeatureClassNames:
> > area:hydro:Coverage Description: Hydrography
> > area:hydro:Coverage Topology Level: 3
> > CoverageTable: java.io.FileNotFoundException: BinaryFile can't find:
> > Global_Map/area/hydro//fcs.
> > area:hydro:FeatureClassNames:
> > *******************************
> >
> > The first exception says it cant find file
> >
> > Global_Map/area/pop//fcs
> >
> > there is no such file, but there is a file
> >
> > Global_Map/area/population/fcs
> >
> > The '//' is rather strange. In Windows if you put '\\' in a path it
> > treats
> > it just like '\', but there may be a problem in the translation
> > between Java
> > and Windows.
>
> I'm not sure why that hasn't been a problem before, unless prior
> versions of Java on Windows handled file paths differently.
>
> >> From the output it seems OpenMap knows there is a correspondence
> >> between
> > 'pop' and 'population', but why does it put 'pop' in the path instead
> > of
> > 'population'?
>
> That's a vpf database question - that's just how it is stored in the
> files.
>
> > I am using OpenMap 4.5.3, Java 1.4.1, Windows 2000
>
> The code in CoverageAttributeTable.java looks like it automatically
> adds a '/' in front of fcs paths. I'll modify the code to have it
> check to see if it needs it.
>
> - Don
>
>
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
> Don Dietrick, BBN Technologies, dietrick@bbn.com
> 10 Moulton Street, Cambridge, MA 02138
> 617-873-3031 [fax]-2794
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>
>

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