Hi John,
I think the entries at the end of the file define the roads that use the
points. The osm files I have have modes:
<node id="163546" timestamp="2008-06-23T14:51:54" user="Dean Earley"
lat="50.7928559" lon="-1.0995028" />
<node id="163547" timestamp="2006-12-05T03:17:47" user="Dean Earley"
lat="50.7940994" lon="-1.0983414" />
and then later:
<way id="12166070" timestamp="2007-11-12T20:52:19">
<nd ref="110314881" />
<nd ref="110314568" />
<tag k="highway" v="residential" />
</way>
where the nd references tie back to the node entries. The tags of the ways
would let you determine how you want to render them.
I'd create OMPoly objects (without fill paint, using OMColor.clear or not
setting it at all)
On Fri, May 21, 2010 at 7:39 AM, John McMahon <jmcmahon_at_mobilvox.com> wrote:
> Hi Don,
>
> Thanks for your reply! It's been very helpful, but I had a question.
>
> When I parse the OSM file, I'm basically left with a bunch of Lat/Long
> points (with tags explaining what they are). From there am I suppose to
> just use OMLines (or anything in the omGraphics package) to "connect the
> dots" in order to show roadways and boundries? Are there any examples of
> this in the source code?
>
> Thanks for any help you can offer,
>
> John
>
>
>
> -----Original Message-----
> From: Don Dietrick [mailto:dfdietrick_at_gmail.com]
> Sent: Tuesday, May 18, 2010 8:10 PM
> To: John McMahon
> Cc: openmap_at_bbn.com; openmap-users_at_bbn.com
> Subject: Re: [OpenMap Users] OpenStreetMap Layer
>
> Hi John,
>
> Thats certainly one way to do it, if the osm files are small enough to fit
> into memory.
>
> If you want to render an osm directly, you would create a new layer by
> extending OMGraphicHandlerLayer, and override the prepare() method to
> create
> and return an OMGraphicList for display. You would parse the osm file and
> create OMGraphic objects to add to that list.
>
> For larger files, (and a faster-responding map), you would want to create
> image tiles. openstreetmap.org has details on how to create your own tile
> set from the osm files. If you have those, you can use the
> com.bbn.openmap.layer.image.MapTileLayer to display them (it's in the beta
> version available via svn on the website).
>
> Hope this helps,
>
> Don
>
>
> On May 18, 2010, at 5:19 PM, John McMahon wrote:
>
> > Hello All,
> >
> > I would like to create an OpenStreetMap layer for OpenMap, and I was
> wondering if anyone had done this before and what it requires. I have
> OpenStreetMap data in the form of an .osm XML file. Will I just have to
> parse that XML file and create a class that extends OMGraphicHanderLayer?
> >
> > I am fairly new to both OpenMap and OpenStreetMap, so any help would be
> appreciated.
> >
> > Thanks,
> > John
>
>
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Received on Fri May 21 2010 - 09:15:01 EDT