Investigation into ODF charts

[Pete Brunet <brunet@us.ibm.com>]

This is a review of ODF's chart support.

10.2 Introduction to Chart Documents

There are two types of chart container
documents:

• Documents that do not provide data for the chart: The chart data is contained in a <table:table> element inside the <chart:chart> element.
• Documents that provide data for the chart: The chart data may be contained in a <table:table> element in the parent document, for example, in a spreadsheet or text document.

10.3 <chart:chart> 
The <chart:chart>  element
represents an entire chart, including titles, a legend, and the graphical
object that visualizes the underlying data called the plot area. The data
underlying the chart is represented by a table element. This element may
also exist for embedded charts that get the data from the container document.
In that case the chart can be rendered without getting the data from the
container document.

The above information is good because
table:table is already accessible.

10.4.1 <chart:title> 
The <chart:title> element represents
a main title object in a chart document. This element can contain fixed
text or it can contain a <table:cell-address> element pointing to
the text that should be displayed as the title. 

10.4.2 <chart:subtitle> 
The <chart:subtitle> element represents
a subtitle which can be used for additional title information in a chart.

10.4.3 <chart:footer> 
The <chart:footer> element represents
a footer below the chart's plot area.

10.5 <chart:legend>

The above are all good for a11y.  I'm
checking with the Symphony team to see what's been implemented, how's it's
been implemented, and what's planned

10.13 <chart:data-label> 
The <chart:data-label> element
represents the data label of a data point. With this element, the content,
formatting properties and position of a data label can be defined manually.

There is not enough information in the
spec to know what this is.  I sent a note to Michael Brauer.

Pete Brunet
                    
                     
                     
         
IBM Accessibility Architecture and Development
11501 Burnet Road, MS 9022E004, Austin, TX 78758
Voice: (512) 838-4594, Cell: (512) 689-4155
Ionosphere: WS4G