Re: questions regarding of-pie chart work

[Kurt Nordback <kurt.nordback@xxxxxxxxxxxxxx>]

Thank you, Miklos and Regina. This is very helpful and gives me some good directions to push this forward.

Kurt



On Friday, January 12th, 2024 at 6:40 AM, Regina Henschel <rb.henschel@xxxxxxxxxxx> wrote:


> Kurt Nordback schrieb am 10.01.2024 um 02:29:
> 
> > I've been working on support for bar-of-pie and pie-of-pie charts.
> > Related bug is here:
> > https://bugs.documentfoundation.org/show_bug.cgi?id=50934
> > and gerrit page for my preliminary implementation is here:
> > https://gerrit.libreoffice.org/c/core/+/160742 (feedback welcome!)
> > 
> > I have several questions about how to take this further. It seems like
> > the bug page and gerrit aren't the right places for discussing these, so
> > I'm raising them here.
> > 
> > 1. I've implemented OOXML import/export, but not ODF import/export
> > because ODF doesn't support of-pie charts. The spec [19.15] does
> > say: "Additional chart types may be supported by using a different
> > namespace."But I'm not sure what that really means. Are there
> > examples of this already?
> 
> 
> I do not know examples.
> 
> Example for "Additional chart types may be supported by using a
> different namespace.":
> For a normal pie-chart the attribute is chart:class="chart:circle". For
> an own chart the attribute would be chart:class="loext:mytypename". Of
> cause instead of 'mytypename' you use a meaningful word.
> 
> For to make it possible for other applications to implement the new
> chart type it is necessary that you describe it, similar to the way it
> is done for the predefined chart types in section 19.15. in ODF 1.3.
> 
> The new attribute value has to be added to
> https://wiki.documentfoundation.org/Development/ODF_Implementer_Notes/List_of_LibreOffice_ODF_Extensions.
> But the place there is not large enough to describe a new chart type.
> Thus you should write a new Wiki-page for this type. Such is necessary
> anyway to help documentation team and is useful too for the release
> notes. Such page needs to have a section that addresses users and
> section that addresses developers and includes information about file
> format.
> 
> In addition you need to change the section "chart:coordinate-region" in
> https://wiki.documentfoundation.org/Development/ODF_Implementer_Notes/List_of_LibreOffice_ODF_implementation-defined_items.
> For that section it is useful too to have a Wiki-page about the new
> chart type, so that a link is sufficient there.
> 
> Kind regards,
> Regina
>