https://bugs.documentfoundation.org/show_bug.cgi?id=160398

Stéphane Guillou (stragu) <[email protected]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://bugs.documentfounda
                   |                            |tion.org/show_bug.cgi?id=16
                   |                            |0411
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
           Keywords|                            |filter:xlsx

--- Comment #6 from Stéphane Guillou (stragu) 
<[email protected]> ---
(In reply to Eyal Rozenberg from comment #5)
> (In reply to Richard M from comment #0)
> > ... plot data on a World Map. For example given a dataset 
> > of [COUNTRY CODE, COUNT] you could
> > see a "Count" over each country code with highlights. 
> This would be useful for sure, but - the question is whether your specific
> request actually requires a new kind of chart, or can be a variation on an XY
If it is automatically matched to a country code as OP suggests, it would need
a new type.

> Do we have an "Excel feature parity" tracker meta-bug? I couldn't find one...
This table fills that role:
https://wiki.documentfoundation.org/Feature_Comparison:_LibreOffice_-_Microsoft_Office
I've added this report to the table.
> > No idea how such a chart is defined in OOXML, but supporting displaying it
> > could be a separate ticket to supporting the creation / editing of such
> > charts.
> Are you sure? I would say keep it as a single bug, unless a developer tells
> us they can fix only one of the two without the other.
My understanding is that just displaying a static picture would be a lot easier
to implement, and would be good to have independently from supporting creating
these charts.

> > I note that dealing with spatial data is quite the challenge.
> Maybe in the most general case. But - in a simpler case, wouldn't an
> "XY+Value" chart type (bug 160411), plus background map, be enough?
That would be the simplest first subset of spatial charting, yes.

> > - recognition of lat/lon coordinates for point data
> What kind of recognition do you mean?
LO being able to understand various formats of coordinates. Some examples here:
https://www.earthpoint.us/Convert.aspx

> > - a small set of projection options
> Hmm... do you really want LO to "know" about 3D points and 2D projections?
> As opposed to only recognizing 2D shapes, i.e. pre-projected shapes?
What I mean is a set of common global projection options good enough for global
datasets, for example: Gall-Peters (for equal area), Robinson (for
familiarity), Mercator (kind of legacy, shouldn't be default)... but we could
also somehow leverage the modern S2 library for a modern default:
https://opensource.googleblog.com/2017/12/announcing-s2-library-geometry-on-sphere.html
For more local data, we will need some understanding of different coordinate
reference systems, but that's where it gets really hairy and where a choice of
a solid, lightweight spatial library dependency is required.

Note also the extension GeOOo that's been around for a while:
https://extensions.libreoffice.org/en/extensions/show/geooo
And EuroOffice Map Chart:
https://extensions.openoffice.org/en/project/eurooffice-chart-map-0 (the
company that developed it does not exist anymore)

In any case, marking as New at least because we need to be able to render these
Excel charts.

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