dhis2-devs-core team mailing list archive

[Jan Henrik Øverland <janhenrik.overland@xxxxxxxxx>]

Bjørn is the expert (and Lars catching up on PostGIS) can provide the
details, but in general: Client side clustering (Leaflet) is a slightly
smoother user experience and can handle about 50k points. For event data we
need something more powerful and as Bjørn says the current server side
cluster solution quite easily handled 1m+ points. The plan is to switch
between those two solutions behind the scenes as applicable.
On Mar 24, 2016 15:01, "Bjørn Sandvik" <bjorn@xxxxxxxxx> wrote:

> I have tested it on 1 million events on an external PostGIS-server, and it
> worked fine. I'll do a similar test on a DHIS 2 db instance after the
> Easter break.
>
> Bjørn
>
> On Thu, Mar 24, 2016 at 12:43 AM, Morten Olav Hansen <morten@xxxxxxxxx>
> wrote:
>
>> Very nice. Any idea on how it scales? 10000 facilities? 50000? More?
>>
>>
>> On Thursday, 24 March 2016, Bob Jolliffe <bobjolliffe@xxxxxxxxx> wrote:
>>
>>> Looks cool.  Very intuitive.
>>>
>>> On 23 March 2016 at 16:45, Lars Helge Øverland <lars@xxxxxxxxx> wrote:
>>>
>>>> Hi,
>>>>
>>>> we've been setting up PostGIS on /dev, meaning you can try out the new
>>>> event clustering feature that Bjørn and Jan have been developing.
>>>>
>>>> 1. Go to event layer in top left corner.
>>>>
>>>> 2. Select "Inpatient morbidity mortality" program.
>>>>
>>>> 3. Select a data element, e.g. "Age in years".
>>>>
>>>> 4. Under periods, select e.g. Jan 2015 to December 2016.
>>>>
>>>> 5. Under organisation units, select e.g. Chiefdom level, and click
>>>> update.
>>>>
>>>> Zoom in and out with mousewheel/touchpad to see events cluster and
>>>> explode.
>>>>
>>>>
>>>> https://play.dhis2.org/dev/dhis-web-mapping/#
>>>>
>>>>
>>>> [image: Inline image 1]
>>>>
>>>>
>>>>
>>>> Favorites not yet supported.
>>>>
>>>> --
>>>> Lars Helge Øverland
>>>> Lead developer, DHIS 2
>>>> University of Oslo
>>>> Skype: larshelgeoverland
>>>> http://www.dhis2.org <https://www.dhis2.org/>
>>>>
>>>>
>>>> --
>>>> Mailing list: https://launchpad.net/~dhis2-devs-core
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>>>>
>>>>
>>>
>>
>> --
>> --
>> Morten Olav Hansen
>> Senior Engineer, DHIS 2
>> University of Oslo
>> http://www.dhis2.org
>>
>>
>
>
> --
> Bjørn Sandvik
> GIS developer, DHIS 2
> University of Oslo
> http://www.dhis2.org <https://www.dhis2.org/>
>
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>