[OASIS Issue Tracker] Created: (OFFICE-3371) chart:surface

chart:surface
-------------

                 Key: OFFICE-3371
                 URL: http://tools.oasis-open.org/issues/browse/OFFICE-3371
             Project: OASIS Open Document Format for Office Applications (OpenDocument) TC
          Issue Type: Bug
    Affects Versions: ODF 1.2 CD 05
            Reporter: Andreas Guelzow 
             Fix For: ODF 1.2 CD 06


In ODF 1.1 the desciption of chart class chart:surface is "the data points are interpreted as tabular data, where each value defines a 'height' at a specific grid location." 10.9 furtehr states that the "<chart:series> element represents a data series in a chart. If the chart requires more input data like scatter and bubble charts, <chart:domain> sub-elements must be defined that mainly contain the cell-range-address of the corresponding data."

This would allow several surfaces to be shown in the same plot.

In ODF1.2CD5 the description of chart:surface was changed in an incompatible way to read in 19.15.1:  The values given by a chart:values-cell-range-address attribute on multiple <chart:series> elements (marked as being of type chart:surface) are interpreted as altitudes at specific grid locations.

Since an undefined number of series are used for a single surface it becomes impossible to have more than one surface in a chart.

So in ODF 1.2 we require:
<chart:series chart:values-cell-range-address="Sheet1.$B$3:.$B$8" />
<chart:series chart:values-cell-range-address="Sheet1.$C$3:.$C$8" />
<chart:series chart:values-cell-range-address="Sheet1.$D$3:.$D$8" />
<chart:series chart:values-cell-range-address="Sheet1.$E$3:.$E$8" />

while in ODF 1.1 it would have sufficed to specify:
<chart:series chart:values-cell-range-address="Sheet1.$B$3:.$E$8" />

which would allow additional surfaces defined by further series.

Note that currently Gnumeric uses the second approach (extending it with two chart:domain sub elements if the x, and y values are not the default 1,2,..,5) while Excel uses the first approach.


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