[OpenLayers-Dev] About Caching copy of OSM on a local server

Christopher Schmidt crschmidt at metacarta.com
Sat Mar 28 15:37:56 EDT 2009 

On Sat, Mar 28, 2009 at 09:46:27PM +0300, ?????????? ???????? wrote:
> Hello,
> I'm a GIS developer and I've started recently using the OpenLayers API and
> found it as an excellent tool.
> I've succeeded using Google maps and OSM as my background maps but I want to
> cache these tiles on my server,
> in order to get them faster but I didn't find the way to do it.
> I tried to use TileCache.org and it is great for my Mapinfo server but not
> for the OSM or  Google.

For Google, you can't ( against the ToS).

For OSM, see the Mapnik layer and
http://wiki.openstreetmap.org/wiki/Mapnik .



> How am I suppose to do it? I didn't find the correct place to ask on
> tilecache and because i've seen mention to this subject in the last digest,
> i'm asking it here!
> I'd very appreciate your help.
> 
> I must add that OpenLayers is the best project I've seen. all the best for
> you, the developers!
> 
> Best regards,
> 
> Moshe Shpitz
> Beit-El ,Israel
> 
> 2009/3/28 <dev-request at openlayers.org>
> 
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> >
> >
> > Today's Topics:
> >
> >   1. Transition From Google's API to OL (Arnie Shore)
> >   2. Re: Transition From Google's API to OL -  Correction! (Arnie Shore)
> >   3. Re: Transition From Google's API to OL (Stephen Woodbridge)
> >   4. Re: Triage Meeting, Round #2 (Eric Lemoine)
> >   5. maps with all "overlays" (Tim Schaub)
> >   6. Re: Transition From Google's API to OL (Schuyler Erle)
> >   7. Re: Transition From Google's API to OL (Arnie Shore)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Fri, 27 Mar 2009 15:16:50 -0500
> > From: Arnie Shore <ashore3 at verizon.net>
> > Subject: [OpenLayers-Dev] Transition From Google's API to OL
> > To: "dev at openlayers" <dev at openlayers.org>
> > Message-ID: <49CD3432.60709 at verizon.net>
> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >
> > Folks, hello, and I wonder if anyone can share experiences doing such a
> > transition.  (I've tried this question with the users group but with no
> > responses.  It was suggested that I try this august group, so here 'tis.)
> >
> > Background:  I've written a free, Open Source application targeted to
> > the public safety community, notably ham radio groups who kick into gear
> > during emergency/crisis conditions.  It relies on their mapping API,
> > currently.
> >
> > But under emergency conditions that comprise the reasons for this
> > community's existence, internet connectivity to Google  may not exist of
> > course.  Accordingly, I'm planning a version of the app in which the
> > tile sets and API are resident at a local server.  Hence my strong
> > interest in OL.
> >
> > I can't imagine I'm the only one here doing anything like that, so I'll
> > appreciate hearing re experiences doing this, plus, especially, thoughts
> > on the tile sets available.  Thanks, all.
> >
> > Arnold Shore
> > Annapolis, MD
> >
> >
> > ------------------------------
> >
> > Message: 2
> > Date: Fri, 27 Mar 2009 15:41:33 -0500
> > From: Arnie Shore <ashore3 at verizon.net>
> > Subject: Re: [OpenLayers-Dev] Transition From Google's API to OL -
> >        Correction!
> > To: "dev at openlayers" <dev at openlayers.org>
> > Message-ID: <49CD39FD.9010507 at verizon.net>
> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >
> > Sorry, "Google's" for "their" below; DUH!
> > > Folks, hello, and I wonder if anyone can share experiences doing such a
> > transition.  (I've tried this question with the users group but with no
> > responses.  It was suggested that I try this august group, so here 'tis.)
> > >
> > > Background:  I've written a free, Open Source application targeted to the
> > public safety community, notably ham radio groups who kick into gear during
> > emergency/crisis conditions.  It relies on Google's mapping API,
> > > currently.
> > >
> > > But under emergency conditions that comprise the reasons for this
> > community's existence, internet connectivity to Google  may not exist of
> > course.  Accordingly, I'm planning a version of the app in which the tile
> > sets and API are resident at a local server.  Hence my strong interest in
> > OL.
> > >
> > > I can't imagine I'm the only one here doing anything like that, so I'll
> > appreciate hearing re experiences doing this, plus, especially, thoughts
> > > on the tile sets available.  Thanks, all.
> > >
> > > Arnold Shore
> > > Annapolis, MD
> >
> >
> >
> > ------------------------------
> >
> > Message: 3
> > Date: Fri, 27 Mar 2009 16:46:10 -0500
> > From: Stephen Woodbridge <woodbri at swoodbridge.com>
> > Subject: Re: [OpenLayers-Dev] Transition From Google's API to OL
> > To: Arnie Shore <ashore3 at verizon.net>
> > Cc: "dev at openlayers" <dev at openlayers.org>
> > Message-ID: <49CD4922.9030109 at swoodbridge.com>
> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >
> > Arnie Shore wrote:
> > > Folks, hello, and I wonder if anyone can share experiences doing such a
> > > transition.  (I've tried this question with the users group but with no
> > > responses.  It was suggested that I try this august group, so here 'tis.)
> > >
> > > Background:  I've written a free, Open Source application targeted to
> > > the public safety community, notably ham radio groups who kick into gear
> > > during emergency/crisis conditions.  It relies on their mapping API,
> > > currently.
> > >
> > > But under emergency conditions that comprise the reasons for this
> > > community's existence, internet connectivity to Google  may not exist of
> > > course.  Accordingly, I'm planning a version of the app in which the
> > > tile sets and API are resident at a local server.  Hence my strong
> > > interest in OL.
> > >
> > > I can't imagine I'm the only one here doing anything like that, so I'll
> > > appreciate hearing re experiences doing this, plus, especially, thoughts
> > > on the tile sets available.  Thanks, all.
> >
> > Arnie,
> >
> > There is not magic to doing what you want, just a lot of work.
> >
> > OpenLayers is a good way to go. I have client that had originally built
> > application on Google and have since migrated to OpenLayers. You will
> > need to get something like the Tiger Shapefiles and process them into
> > something suitable for you purposes to work with UMN Mapserver which can
> > serve map images to OpenLayers or can be used to generate tiles.
> >
> > You can start by rebuilding your application using OpenLayers and
> > continue using Google for the time being. Then when you have it rehosted
> > into the OpenLayers API, you can turn your attention to getting the maps
> > working. Once you have Mapserver generating maps, you can change a few
> > lines of OpenLayers to switch it between Mapserver and Google. Another
> > option might be to use OSM and Tilecache to cache a copy of the OSM
> > tiles locally.
> >
> > When you are ready to focus on the Mapserver side of things, join the
> > mapserver list and I'm sure we will be glad to help you.
> >
> > -Steve
> >
> >
> > ------------------------------
> >
> > Message: 4
> > Date: Fri, 27 Mar 2009 22:43:33 +0100
> > From: Eric Lemoine <eric.c2c at gmail.com>
> > Subject: Re: [OpenLayers-Dev] Triage Meeting, Round #2
> > To: Christopher Schmidt <crschmidt at metacarta.com>
> > Cc: dev at openlayers.org
> > Message-ID:
> >        <5ec103de0903271443j3f0a967cw5c5ab295b3b3629 at mail.gmail.com>
> > Content-Type: text/plain; charset=UTF-8
> >
> > I hope to be able to attend this time, my agenda being a bit uncertain
> > these days.
> >
> > Thx,
> >
> > --
> > Eric
> >
> >
> >
> > On Tue, Mar 24, 2009 at 8:09 PM, Christopher Schmidt
> > <crschmidt at metacarta.com> wrote:
> > > In order to finalize what will not be going into the 2.8 release, I
> > > propose we have another meeting on April 1st, at the same time as
> > > before, if there are no serious conflicts:
> > >
> > > ?http://bit.ly/yeFwo
> > > ?Time: April 1st, 16:00 UTC
> > >
> > > It is my intention that after this meeting, no new non-regression bugs
> > > will be included in 2.8, and any bug that is unlikely to have a patch in
> > > trunk over the following 2-3 days will not be included in 2.8. This
> > > should allow us to plan for an RC1 on April 6th.
> > >
> > > I should note that it appears that London, and possibly other European
> > > countries, observe Daylight Savings Time starting this weekend, which
> > > may push this meeting one hour *later* than the previous one for you
> > > folks.
> > >
> > > If anyone has serious conflicts with this time, and has other
> > > suggestions, please try to have them in within the next 24 hours, and
> > > I'll try to come up with a plan that works as well as possible. I'm
> > > especially interested in anyone who currently has a ticket assigned to
> > > them
> > > (
> > http://trac.openlayers.org/query?status=new&status=assigned&status=reopened&milestone=2.8+Release&order=priority&group=owner
> > )
> > > being able to attend.
> > >
> > > Thanks!
> > >
> > > Best Regards,
> > > Christopher Schmidt
> > > OpenLayers 2.8 Release Manager
> > > _______________________________________________
> > > Dev mailing list
> > > Dev at openlayers.org
> > > http://openlayers.org/mailman/listinfo/dev
> > >
> >
> >
> > ------------------------------
> >
> > Message: 5
> > Date: Fri, 27 Mar 2009 17:18:27 -0600
> > From: Tim Schaub <tschaub at opengeo.org>
> > Subject: [OpenLayers-Dev] maps with all "overlays"
> > To: openlayers <dev at openlayers.org>
> > Message-ID: <49CD5EC3.3070101 at opengeo.org>
> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >
> > Hey-
> >
> > I've put together a pretty simple patch [1] that allows a map to be
> > configured so that the lowest layer in the draw order is always treated
> > as the base layer.
> >
> > With this patch, if you configure your map with allOverlays: true and
> > configure every layer with isBaseLayer: false, you can have a map with
> > any number (including zero) of layers visible or invisible.
> >
> > The patch is marked for commit, and I'm happy to commit it.  If anybody
> > has any comments about *not* wanting this, please speak up.
> >
> > Tim
> >
> > [1] see http://trac.openlayers.org/ticket/2004
> >
> > --
> > Tim Schaub
> > OpenGeo - http://opengeo.org
> > Expert service straight from the developers.
> >
> >
> > ------------------------------
> >
> > Message: 6
> > Date: Sat, 28 Mar 2009 05:22:36 -0700
> > From: Schuyler Erle <schuyler at nocat.net>
> > Subject: Re: [OpenLayers-Dev] Transition From Google's API to OL
> > To: Stephen Woodbridge <woodbri at swoodbridge.com>
> > Cc: "dev at openlayers" <dev at openlayers.org>
> > Message-ID: <20090328122236.GA3056 at vishnu.tridity.org>
> > Content-Type: text/plain; charset=us-ascii
> >
> > * On 27-Mar-2009 at  1:44PM PDT, Stephen Woodbridge said:
> > > Another option might be to use OSM and Tilecache to cache a copy of
> > > the OSM tiles locally.
> >
> > I was going to recommend this option as well -- it has the advantage
> > that you won't need to deal with getting a whole bunch of vector data
> > and then figuring out how to render it, although it would require more
> > disk space than rendering vectors on the fly. I estimate that
> > rendering the US down to zoom level 16 would require about 130 million
> > tiles, or about 40 GB of cache.
> >
> > Arnie, if you're in Annapolis in June, you might be interested in
> > this:
> >
> >  http://barcamp.org/CrisisCamp
> >
> > SDE
> >
> >
> > ------------------------------
> >
> > Message: 7
> > Date: Sat, 28 Mar 2009 09:29:36 -0500
> > From: Arnie Shore <ashore3 at verizon.net>
> > Subject: Re: [OpenLayers-Dev] Transition From Google's API to OL
> > To: "dev at openlayers" <dev at openlayers.org>
> > Cc: Bob Austin <mandolinpicker at verizon.net>
> > Message-ID: <49CE3450.9030502 at verizon.net>
> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >
> > Hmmm.  (I was hoping quietly to myself that nuth'n wd pan out, cuz if it
> > did - and it does - I got a heap of work staring right at me.)
> >
> > Taking  a  harder look at OSM than I'd taken earlier tells me that it
> > ain't half bad, given the kind of usage I'm addressing.  I'd been
> > concerned that the folks out in South Succotash wd have little
> > available, but not so.  I did a pair of test cases, and while OSM wont
> > get to the lowest zoom that GMaps does, I think that's quite live-able
> > with, with the added plus of local editing.
> >
> > I'd need to provide the kind of repository SDE notes, plus some
> > convenient tools - Tilecache sound right - to allow a user to collect
> > tiles for the areas of interest.  And then there's the CAD application!
> >
> > Thanks, guys - you've helped a lot!  I have a feasible direction now.
> >
> > AS
> >
> > PS re BarCamp:  Yep, I'm in Annapolis in June.  And July.  And ...  Will
> > look hard at that - first peek comes up positive.
> >
> > ~~~_/)~~~~~~~~_/)~~~~~~~~_/)~~~~~~~~_/)~~~~~~~~_/)~~~~~~~~_/)~~~~~~~~_/)~
> >
> > Schuyler Erle wrote:
> > > * On 27-Mar-2009 at  1:44PM PDT, Stephen Woodbridge said:
> > >
> > >> Another option might be to use OSM and Tilecache to cache a copy of
> > >> the OSM tiles locally.
> > >>
> > >
> > > I was going to recommend this option as well -- it has the advantage
> > > that you won't need to deal with getting a whole bunch of vector data
> > > and then figuring out how to render it, although it would require more
> > > disk space than rendering vectors on the fly. I estimate that
> > > rendering the US down to zoom level 16 would require about 130 million
> > > tiles, or about 40 GB of cache.
> > >
> > > Arnie, if you're in Annapolis in June, you might be interested in
> > > this:
> > >
> > >   http://barcamp.org/CrisisCamp
> > >
> > > SDE
> > >
> > >
> >
> >
> >
> > ------------------------------
> >
> > _______________________________________________
> > Dev mailing list
> > Dev at openlayers.org
> > http://openlayers.org/mailman/listinfo/dev
> >
> >
> > End of Dev Digest, Vol 30, Issue 43
> > ***********************************
> >

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-- 
Christopher Schmidt
MetaCarta

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