dhis2-devs team mailing list archive

[Jason Pickering <jason.p.pickering@xxxxxxxxx>]

Hi there. A couple of more issues that arise from this as well.

First, transparency. I am thinking that it would be nice, if possible,
to be able to adjust the level of transparency in addition to the
color scheme. This is a tricky issue, as transparent point symbols may
"bleed" into the colors underneath. This is the same for polygons,
which might be transparent so some degree, and bleed in with the
background image (such as a satellite image or other WMS background
layer). I am not really sure what the best way to handle this is. It
is easy to create really crappy looking maps unless this is managed
properly. I am not sure if you have considered this, or if it is even
possible.

Second, layer ordering. I can imagine we will start getting into a
situation where we will have to apply some sort of ordering to the
layers, similar to the functionality in most GIS systems. With all of
these layers (polygons, point symbols, background layers, and other
"static layers" such as roads, transportation, etc) it may get very
messy quickly.

Intermap, the client that ships with Geonetwork, uses the Web Mapping
Context standard for this, which will work well for different WFS/WMS
layers, but since it really isn't possible at the moment (as far as I
know with DHIS) to make a WMS call directly for a particular layer
(similar to the REST interface of the OpenHealth prototype), I am not
exactly sure either how this would be done.

Anyway, just some musings...having point based mapping  functionality
will be a great!

Best regards,
Jason


On Fri, Oct 23, 2009 at 1:54 PM, Jan Henrik Øverland
<janhenrik.overland@xxxxxxxxx> wrote:
> Ok, I will start working on this on Monday. It should be possible to display
> these points on top o generated polygons as well.
>
> On Fri, Oct 23, 2009 at 1:46 PM, Jason Pickering
> <jason.p.pickering@xxxxxxxxx> wrote:
>>
>> Sounds good to me. Will really look forward to seeing this in action.
>>
>> Best regards,
>> Jason
>>
>>
>> On Fri, Oct 23, 2009 at 1:40 PM, Jan Henrik Øverland
>> <janhenrik.overland@xxxxxxxxx> wrote:
>> > So let's go for two completely unrelated indicators (different indicator
>> > group and period) per facility? That will not be any harder, it's just a
>> > matter of GUI as datamart export (aggregatedindicatorvalue) will have to
>> > be
>> > transfered twice anyway.
>> >
>> > On Fri, Oct 23, 2009 at 12:09 PM, Jason Pickering
>> > <jason.p.pickering@xxxxxxxxx> wrote:
>> >>
>> >> One of the functions in ArcGIS is the ability to use values to
>> >> "normalize" the data. This is essentially the same as an indicator in
>> >> DHIS.
>> >>
>> >> I think we have to be careful about allowing sort of any and all data
>> >> to be visualized in anyway, which could lead to situtations that do
>> >> not make sense. Sure, we could compare "Fully immunized childred" data
>> >> element to "Female population", but of course this does not make sense
>> >> to do so. I think keeping the visualization within the confines of
>> >> indicators is a good idea, as it allows more control over what is
>> >> actually available to display on the map. But, having the ability to
>> >> create indicators on the fly, without having to go necessarily through
>> >> the data mart would be a great feature.
>> >>
>> >>
>> >>
>> >> On Fri, Oct 23, 2009 at 11:59 AM, Knut Staring <knutst@xxxxxxxxx>
>> >> wrote:
>> >> > Agree very much with Jason that it looks great! We also have plans to
>> >> > extend
>> >> > this with different types of symbols (not just circles) and labels
>> >> > (the
>> >> > need
>> >> > for labels can be covered by popups on hovering which we already have
>> >> > when
>> >> > interactive, but may be needed especially for printing).
>> >> > I would say that a very typical need would be to see the number of
>> >> > cases
>> >> > compared to "semi-permanent" data in the form of type of health
>> >> > facility
>> >> > or
>> >> > services available. Some of that will naturally be definable as
>> >> > indicators,
>> >> > but not all, and this interface could even be helpful in exploring
>> >> > data
>> >> > to
>> >> > see what kind of indicators would make sense to follow - given that
>> >> > we
>> >> > can
>> >> > also display raw datavalues in this view (currently the GIS can only
>> >> > display
>> >> > indicators).
>> >> > Knut
>> >> >
>> >> > On Fri, Oct 23, 2009 at 11:52 AM, Jason Pickering
>> >> > <jason.p.pickering@xxxxxxxxx> wrote:
>> >> >>
>> >> >> Hi Jan,
>> >> >> This looks quite advanced. I would say however that there would be a
>> >> >> need to display two completely unrelated indicators, but perhaps not
>> >> >> necessarily from different time periods. I produced a very similar
>> >> >> looking map in Tableau comparing data submission rates (to date)
>> >> >> with
>> >> >> monthly fully immunized children coverage indicator for a particular
>> >> >> month. I could imagine other cases when you want to compare say
>> >> >> "Bednet coverage rate" with "Malaria incidence rate". These might
>> >> >> not
>> >> >> be in the same indicator group, and would likely not have the same
>> >> >> time period.
>> >> >>
>> >> >> However, this seems to be somewhat outside of the 80% for what I
>> >> >> would
>> >> >> think the web based GIS would do. You might need to pull the data
>> >> >> into
>> >> >> Tableau or ArcGIS for this type of analysis. Displaying facility
>> >> >> coverage rates would be just fine (for now) for here anyway.
>> >> >>
>> >> >> Looks great!
>> >> >>
>> >> >> Best regards,
>> >> >> Jason
>> >> >>
>> >> >>
>> >> >> On Fri, Oct 23, 2009 at 11:25 AM, Jan Henrik Øverland
>> >> >> <janhenrik.overland@xxxxxxxxx> wrote:
>> >> >> > In the attached image, each point (facility) displays the value of
>> >> >> > two
>> >> >> > different indicators (color and size). Is it sufficient to select
>> >> >> > those
>> >> >> > two
>> >> >> > indicators from the same indicator group and within the same
>> >> >> > period
>> >> >> > (GIS
>> >> >> > GUI):
>> >> >> > INDICATORS
>> >> >> > Indicator group
>> >> >> > Period
>> >> >> > Indicator 1
>> >> >> > Indicator 2
>> >> >> >
>> >> >> > .. or is there a need to display unrelated indicators (different
>> >> >> > group
>> >> >> > and
>> >> >> > period):
>> >> >> > INDICATOR 1
>> >> >> > Indicator group
>> >> >> > Period
>> >> >> > Indicator
>> >> >> >
>> >> >> > INDICATOR 2
>> >> >> > Indicator group
>> >> >> > Period
>> >> >> > Indicator
>> >> >> >
>> >> >> > Jan
>> >> >> > _______________________________________________
>> >> >> > Mailing list: https://launchpad.net/~dhis2-devs
>> >> >> > Post to     : dhis2-devs@xxxxxxxxxxxxxxxxxxx
>> >> >> > Unsubscribe : https://launchpad.net/~dhis2-devs
>> >> >> > More help   : https://help.launchpad.net/ListHelp
>> >> >> >
>> >> >> >
>> >> >>
>> >> >> _______________________________________________
>> >> >> Mailing list: https://launchpad.net/~dhis2-devs
>> >> >> Post to     : dhis2-devs@xxxxxxxxxxxxxxxxxxx
>> >> >> Unsubscribe : https://launchpad.net/~dhis2-devs
>> >> >> More help   : https://help.launchpad.net/ListHelp
>> >> >
>> >> >
>> >> >
>> >> > --
>> >> > Cheers,
>> >> > Knut Staring
>> >> >
>> >
>> >
>
>