[ka-Map-users] Re: scaled image\icon overlay

[semerau at hotmail.com]

That type of solution would be perfect. I don't know if that's how it works. Hopefully someone can chime in, or else I'll just have to experiment. BTW, you're definitely not wasting my time. I need all the ideas I can get.



> Date: Thu, 18 Oct 2007 13:02:53 -0500
> Subject: RE: [ka-Map-users] Re: scaled image\icon overlay
> From: neuhausr at bitstream.net
> To: semerau at hotmail.com
> 
> This could be a dead end (I don't use kamap much), and if so I'm sorry for
> taking up your time.  But, I thought you could choose certain layers to be
> cached, and others to not be cached.  If not, there must at least be some
> way to bring in WMS layers "live".  Maybe it's not done through the
> mapfile but another part of kamap?  I'm not having a lot of luck searching
> for wms and kamap...
> 
> Brad
> 
> > Thanks, Brad. But won't ka-Map cache the image if its coming from
> > mapserver? I need to be able to change it at any time and have the browser
> > show the new image.
> >
> >
> >
> >> Date: Thu, 18 Oct 2007 11:51:14 -0500
> >> From: neuhausr at bitstream.net
> >> To: ka-map-users at lists.maptools.org
> >> Subject: [ka-Map-users] Re: scaled image\icon overlay
> >>
> >> If your image is georeferenced, you can just make it a layer in
> >> mapserver
> >> and it will automatically scale and be in the right place.  The most
> >> common way to do this is with a TIFF, and an accompanying World (.wld)
> >> file.  There's a brief explanation here:
> >> http://mapserver.gis.umn.edu/docs/howto/raster_data
> >>
> >> GDAL is an open source library which may help you get info on and modify
> >> your images.  It's website is http://www.gdal.org/index.html, and it's
> >> easily available with FWTools http://fwtools.maptools.org/
> >>
> >> You could also set up the airport image as a WMS you serve yourself from
> >> a
> >> separate mapfile, and overlay it in kamap as a WMS layer.
> >>
> >> Hope this may help!
> >> Brad
> >>
> >> >
> >> > Message: 7
> >> > Date: Thu, 18 Oct 2007 09:10:36 -0600
> >> > From: "semerau at hotmail.com" <semerau at hotmail.com>
> >> > Subject: RE: [ka-Map-users] scaled image\icon overlay
> >> > To: <ka-map-users at lists.maptools.org>
> >> > Message-ID: <BAY104-W6FC8721BFE4035AA16DA6B79E0 at phx.gbl>
> >> > Content-Type: text/plain; charset="iso-8859-1"
> >> >
> >> > I guess I could create separate sized images, one for each zoom level,
> >> and
> >> > overlay a particular once based on the zoom level. That would kind of
> >> be a
> >> > lot of work but I suppose that would work.
> >> >
> >> > Or maybe I can just use javascript to stretch or shrink the image
> >> based on
> >> > zoom level.
> >> >
> >> >
> >> >
> >> > From: semerau at hotmail.com
> >> > To: ka-map-users at lists.maptools.org
> >> > Date: Wed, 17 Oct 2007 09:45:05 -0600
> >> > Subject: [ka-Map-users] scaled image\icon overlay
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> > I see from the docs that only line and polygon overlays are scaled to
> >> the
> >> > map. Is there a way to scale an image or an icon overlay to the map? I
> >> > realize this is basically what mapserver does, but I would like to do
> >> this
> >> > through ka-map so I can have better control over when\whether the
> >> image is
> >> > displayed.
> >> >
> >> > For example, I would like to put an overlay image of an airport over
> >> the
> >> > place on the map where the airport is, and then when you zoom in and
> >> out,
> >> > the image of the airport overlays also zooms in and out.  The image of
> >> the
> >> > airport will change often and often won't even be displayed. I don't
> >> want
> >> > to put the airport image on the map tile itself because then I would
> >> have
> >> > to set the caching of ka-Map so some low duration, but I still
> >> wouldn't be
> >> > able to control exactly when the airport image changes in the browser.
> >> >
> >> > Any suggestions would be appreciated.
> >>
> >>
> >> _______________________________________________
> >> ka-Map-users mailing list
> >> ka-Map-users at lists.maptools.org
> >> http://lists.maptools.org/mailman/listinfo/ka-map-users
> >
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> 
> 

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