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Subject: [OASIS Issue Tracker] Commented: (OFFICE-2010)chart:class=chart:surface regression



    [ http://tools.oasis-open.org/issues/browse/OFFICE-2010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16861#action_16861 ] 

Dennis Hamilton commented on OFFICE-2010:
-----------------------------------------

I don't understand this statement in the description of the issue: "As a consequence the 1.1 description allows several surface plot to be placed in the same chart. SInce there is no way to determine which series would belong to which surface, in 1.2 this has been removed"

Secondly, I don't see how the proposed restatement resolves the questions in the description.  It may be that it does, but it is not clear that the dots have been connected with regard to the issue.  

The description is rather too procedural and it is easy to misread what is being specified.  It is more appropriate to describe the static elements and attributes and what the corresponding features of the chart are.  There are a large number of questions that come to mind that I cannot tell are answered here.  It may be that information that answers the question can be found in other text of 1.2 but I haven't checked at this point.  For example, it appears that when chart:three-dimensional="false" only the positive part of the horizontal axis is used and the progression of values in a chart series always corresponds to x = 1.0, x = 2.0, etc.  I assume that "altitude" in this case refers to the y-coordinate corresponding to the particular x-coordinate.  I assume that altitudes can be negative and don't have to be integer-valued.  It is not clear whether this coordinate system is transformed at any point or whether scale legends are able to say that the presented x values are different than the unit values understood for the x-coordinates and y-coordinates in the 2-dimensional Cartesian coordinate system that the sequences are mapped to.  



> chart:class=chart:surface regression
> ------------------------------------
>
>                 Key: OFFICE-2010
>                 URL: http://tools.oasis-open.org/issues/browse/OFFICE-2010
>             Project: OASIS Open Document Format for Office Applications (OpenDocument) TC
>          Issue Type: Bug
>          Components: Chart
>    Affects Versions: ODF 1.2
>            Reporter: Andreas Guelzow 
>            Assignee: Patrick Durusau
>             Fix For: ODF 1.2
>
>
> In ODF 1.1 the description for chart:class=chart:surface is:
> the data points are interpreted as tabular data, where each value defines a 'height' at a specific grid location. 
> In the ODF draft 1.2 this has changed to:
> The values of multiple <chart:series> (marked as being of type chart:surface) are interpreted as a 'altitude' at a specific grid location.
> So in 1.1 one needs only one series to give the tabular data (table range) for a whole surface where the column/row location indicates the grid location for this "height".
> In 1.2 on the other hands an undetermined number of series are supposed to be combined in an undetermined way to create the surface. (Some appear to interpret this to mean that each series gives the heights for one fixed coordinate and the series contains rather than tabular data a sequence of heights for the various values of the other coordinates.)
> As a consequence the 1.1 description allows several surface plot to be placed in the same chart. SInce there is no way to determine which series would belong to which surface, in 1.2 this has been removed.

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