[OSM-dev] GSoC: POI search

[Mitja Kleider]

Hi,

I would like to introduce my idea for GSoC. We already have many POI
details in the database (opening hours, website/wikipedia article,
phone, ...) that are not very accessible to the end user. There is also
a growing demand for an easy way to display icons for rare tag
combinations, like new OSM for the blind tags, "fuel stations" for
electric cars, pubs for smokers, and so on. My experience is also that
mappers are highly motivated if they can view their special details.

I was inspired by the demo introduced at SOTM09 [1] and the
OpenStreetBrowser [2] and tried to build a map with clickable POI
overlays (no tiles, but OpenLayers markers) that would provide the
tagged details as human readable text when the user clicks an icon.

This is in a proof of concept state and turned out to be useful (i.e.,
for the OpenLinkMap [3]).

If you want to support any possible tag combination with reasonable
performance and also be up to date (at least daily updates, aiming for
real-time) in my opinion none of the existing API solutions is suitable.


This is where the project idea [4] comes into play: MonetDB seems to
have the right capabilities and can be extended with spatially ranked
text search features.

The project could provide the API (including text search) and usage
examples, i.e. an OpenLayers example to build a map for end users (and
mappers) making the existing data more accessible in terms of search and
presentation.


I would like to hear your comments and suggestions. What do you think?

[1]http://xapidemo.openstreet.nl/
[2]http://www.openstreetbrowser.org/
[3]http://olm.openstreetmap.de/
[4]http://wiki.openstreetmap.org/wiki/GSoC_Project_Ideas_2010#Point_of_Interest_search_and_presentation


Regards
Mitja


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Re: [OSM-dev] need some javascript help

[jamesmikedup...@googlemail.com]

I have done the basic javascript work now.

http://github.com/h4ck3rm1k3/OAD-Open-Address-Database/blob/master/OAD/root/static/javascript/oad.js

Now I need to setup an nomatim server interface, I am considering setting up
my own, using the alternative names we have loaded into the kosovo osm map.

Mike

On Fri, Feb 26, 2010 at 10:40 PM, jamesmikedup...@googlemail.com <
jamesmikedup...@googlemail.com> wrote:

> yes the performance is horrid. thanks!
> I will look into compressing this all and making it tight.
> it will all be hosted on the server, no need for cross site stuff.
> thanks,
> mike
>
>
> On Fri, Feb 26, 2010 at 10:35 PM, Emilie Laffray  > wrote:
>
>> On 26/02/2010 20:59, jamesmikedup...@googlemail.com wrote:
>> > OK
>> > I have updated the server here :
>> > http://119.161.80.223:3000/Controller
>> > It is running the lastest code.
>> > You can see my demo controller, now I want to change the url of the
>> > top frame based on the selection in the bottom one. I guess it might
>> > be very easy.
>> > there is a great plugin that just allows you to right click on
>> > something and show it in a map.
>> > the minimap plugin for firefox. Something like that is what I want.
>> > but it would be great to be able to also select the location in the
>> > map and update the lat /lon. Even to select a street and attach it
>> > (data mode osm)
>> >
>> > this will be a great tool for osm, please help with it.
>> > we can use it to create databases of addresses and pull them up in the
>> > map, like select a street  and find all data rows with the street name
>> > in it in that current town.
>>
>> You might want to check the parent functionality in Javascript. In the
>> iframe, you may want to use code like this:
>> var firstiframe = parent.getElementById("addresses");
>> firstiframe.src = "http://www.mynewurl";;
>>
>> Please note that this code won't work on your current page as you have a
>> name field instead of an id field, which is what getElementById is
>> getting. Of course, you could use getElementsByName() but the
>> compatibility is not as good. Please check the following page for more
>> information:
>> http://www.quirksmode.org/dom/w3c_core.html
>>
>> However, cross scripting prevention tools might balk at it.
>> Also, for some reason, all files from openlayer are being loaded. YSlow
>> is reporting the following:
>> This page has 205 external Javascript scripts. Try combining them into
>> one.
>>
>> The main openstreetmap site is using only 5 external javascript scripts,
>> so you might want to investigate this for performance reason.
>>
>> Emilie Laffray
>>
>>
>
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Re: [OSM-dev] osm2pgsql hstore support

[Sven Geggus]

Sven Geggus  wrote:

> Currently the patch has not been tested in conjunction with
> incemental database updates.

OK, in the meantime I can confirm, that incemental database updates
work fine. I just fixed a problem with polygons (SVN r20565). When
using hstores we need a way to mark polygon tags as such but without
adding an additional column for this tag.

This is now possible using the phstore flag in the stylefile. In
non-hstore-mode this flag is invalid.

Regards

Sven

-- 
The main thing to note is that when you choose open source you don't
get a Windows operating system.
  (from http://www.dell.com/ubuntu)
/me is gig...@ircnet, http://sven.gegg.us/ on the Web

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