RE: VPF data

We have been using DCW/Vmap vpf data in openmap with no problems. Yes it is
a very cryptic set-up trying to work out what to display.

Also, my vpf data will only display below a certain scale level. So I have
to zoom in a fair way before it will display.

Question: Has anyone been able to display point data from Digital Chart of
the World?

Is it supported by openmap?

Regards,

Matthew Hedges
RLM Systems - Technology Support Group

-----Original Message-----
From: S. Russell Berckmoes [mailto:berck@radixtek.com]
Sent: Friday, 15 February 2002 10:06
To: Drew Van Duren
Cc: openmap-users@bbn.com
Subject: RE: VPF data

Drew,

We have been using VPF data (VMAP) with few problems. You have to remember a
few things.
1) The vpfPath must be pointed to where OpenMap with find the dhl & lat
files
2) coverage types must be defined (bnd, hydro, pop, elev, etc). These are
subdirectory names located below the library directory (noamer, eurnasia,
etc.).
3) You must define area/edge/text feature types. They are very cryptic files
within VMAP coverage directory. I had to go into the directories to figure
these names out. A hint is that area names end with an 'a' (before the
prefix), edge names with an 'l', point names (with does appear to be
supported by OpenMap) with a 'p' and text with 'txt' (text is not very good
within VPF data). OpenMap ignores the file extension.
4) Make sure if you are using 'areas' that you specific a fill color and
opaqueness level. If not, many of these areas default to clear.

Here is a sample of my properties file using VMAP Level 0...

vmap0Political.class=com.bbn.openmap.layer.vpf.VPFLayer
vmap0Political.prettyName=VMAP0 Political
# this is on one line within the properties file.
vmap0Political.vpfPath=d:/mapdata/v0noa/vmaplv0;d:/mapdata/v0eur/vmaplv0;d:/
mapdata/v0sas/vmaplv0;d:/mapdata/v0soa/vmaplv0
vmap0Political.coverageType=bnd
vmap0Political.featureTypes=edge area
# just display coastlines and political boundaries
#vmap0Political.edge= polbndl coastl depthl
vmap0Political.edge= polbndl coastl
# just display political areas and not oceans
#vmap0Political.area= oceansea polbnda
vmap0Political.area= polbnda
# Use this property for a better focus on feature types, especially
# for more fine-grained databases
vmap0Political.searchByFeature=true
vmap0Political.lineColor=ff0000ff
vmap0Political.fillColor=ffbdde83

Hope this helps.

         \\|//
        (- o)
-----oOOo-(_)-oOOo------
Russ Berckmoes
Sr Software Engineer
Radix Technologies, Inc.
329 N. Bernardo Ave.
Mountain View, CA 94043
(650) 988-4700
(650) 988-8713 FAX
(650) 944-1524 Direct
berck@radixtek.com
------------------------

-----Original Message-----
From: owner-openmap-users@bbn.com [mailto:owner-openmap-users@bbn.com]On
Behalf Of Drew Van Duren
Sent: Thursday, February 14, 2002 2:35 PM
To: Geoffrey S. Knauth
Cc: openmap-users@bbn.com
Subject: VPF data

All,

I've been having trouble getting the OpenMap component to display VPF data.
Specifically, the error I'm getting is that it's not finding the path to the
VPF
data directory that contains the lat or lat. file. I am, however, providing
it the
absolute path to that directory and setting up the necessary items (coverage
types,
feature types, etc.) in the properties file. Are there any special
considerations
I need to be aware of?

Drew

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