Thanks Rob and Andrea. I will consider your suggestions. 2012/7/23 Rob Weir <[email protected]>
> On Fri, Jul 20, 2012 at 2:11 AM, Clarence GUO <[email protected]> > wrote: > > HI~ > > I'm investigating bug 119639. Basically I need ODF standard to support > > chart:percentage attribute not only in <chart:plot-area> applied style > but > > also in <chart:series> applied style. However ODF v1.2 says for > > chart:percentage attribute "This attribute is evaluated for chart styles > > that are applied to a <chart:plot-area> element.". So the requirement is > > conflict with the ODF standard. So is there any method can satisfy my > > requirement without ODF standard change? The details please reference > below > > explanation. I also post it as comment to this bug. > > > > Two possibilities: > > 1) Generally we should avoid reinterpreting existing ODF > elements/attributes. But if we believe that something in ODF is > ambiguous or wrong, then we can make a proposal to the OASIS ODF TC to > adjust the meaning of existing ODF markup. The main restriction here > is that the ODF TC will generally not make changes that would break > existing documents or implementations. > > 2) If we need to make a bigger change, ODF allows implementors to > extend it. So we can add new elements and attributes, but they cannot > be in an ODF namespace. We need to put the new markup in our own XML > namespace. > > If we need to extend ODF I'd recommend also: > > a) We track on a special wiki page exactly what additions we make to > the document format. > > b) We think carefully about backwards compatibility and how the new > markup will be treated by other applications > > c) If we think the new feature would be useful to other editors we can > propose adding it to ODF 1.3, as an official part of the standard. > > -Rob > > > The chart in the sample is not a standard chart but a composite chart. > > Series 1, 2 and 4 are percent stacked columns which were applied to the > > main Y axis, while series 3 is normal column which was applied to the > > secondary Y axis. So series 3 will cover some part of Series 1, 2 and 4. > > MS Office supports such chart. It can set one or more data series to > > another chart type. AOO's UI cannot do this. But the chart kernal > function > > supports. So when open the sample file the chart looks OK. However, the > ODF > > format doesn't support this, that why after save the sample to ods and > > reopen, the chart becomes incorrect(Series 3 occupy 100% space of the > > percent stacked column). > > The reason is AOO defined a style 'ch4' and applied to <chart:plot-area>. > > In this style, the chart:percentage attribute was set to true. This > > attribute specifies a percentage accumulation of values per category. > > Because this style was applied to <chart:plot-area>, then all data series > > are regarded as percent columns. And series 3 is a unique data series > which > > applied to the secondary Y axis. So it occpy the total 100% space so that > > other data series are all covered. > > If want to fix this defect, must move chart:percentage attribute from the > > style which applied to <chart:plot-area> to the style which applied to > > <chart:series>. However, for this attribute, ODF 1.2 says "This attribute > > is evaluated for chart styles that are applied to a <chart:plot-area> > > element.". So my requirement is conflict with the ODF standard. > > Then how can I fix this defect? It seems the only way is to change the > > standard and change the corresponding filter code. But I know change the > > standard is not easy... >
