OASIS Open Document Format for Office Applications (OpenDocument) TC

  • 1.  Chart proposal

    Posted 11-17-2003 15:55
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    Subject: Chart proposal


    Hi all,
    
    Here's two proposals for charts:
    
    1) Extend Chart Types
    
    We have already agreed to keep the chart types extensible (with a common 
    set of well-known chart types), and I propose to add 'surface' and 
    'gantt' to the list of chart type. The former was proposed by Paul 
    Langille, the latter by the OOo chart implementers.
    
    2) Move categories to axis
    
    Currently, the plot-area has an (optional) child element categories, 
    which contains a sequence of labels for the data points. These 
    categories are associated with the first/main axis. I suggest to move 
    this element to the axis element, making categories per-axis.
    
    This was suggested by the OOo chart implementers, but it should also 
    cover Paul's proposal of adding Y-Axis labels. However, instead of 
    introducing a second categories element, it simply makes the categories 
    a per-axis item, thus enabling use of categories on the Y-axis as well.
    
    3) Legend expansion
    
    The legend is usually expanded depending on its position (auto-position, 
    acutally): A legend on the left would be exanded vertically, a legend on 
    the top would be expanded horizontically. The problem is, how to expand 
    a legend that has been manually placed, where no 'obvious' expansion can 
    be determined?
    
    I propose to add a style attribute legend-expansion with values wide, 
    high, balanced and custom, where custom requires an additional 
    legen-expansion-aspect-ration attribute. This was proposed by Paul 
    (Legend Layout, horizontal, vertical), and two values were added by OOo 
    chart people.
    
    
    Sincerely,
    Daniel
    
    
    Sincerely,
    Daniel
    
    


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