Re: [office] Chart Data Label Positions

[Patrick Durusau <patrick@durusau.net>]

David,

I looked at the earlier proposal and it appears to be defining 
north/north-west, etc. by illustration. Is that correct?

Wouldn't it be more precise (and interchangeable) to simply define the 
point of origin for whatever is being labeled and then define 
north/north-west/ etc. by their positions relative to that point of 
origin? I don't object to the labels per se, north, north-west, if that 
is an easy mnemonic but am concerned that we give those terms precise 
meaning.

Hope you are having a great day!

Patrick

David Faure wrote:
> Here's the revised proposal for chart label auto position:
>
> <define name="labelPositions">
>     <choice>
>         <value>auto</value>
>         <value>center</value>
>         <value>north</value>
>         <value>north-west</value>
>         <value>west</value>
>         <value>south-west</value>
>         <value>south</value>
>         <value>south-east</value>
>         <value>east</value>
>         <value>north-east</value>
>         <value>inside</value>
>         <value>outside</value>
>         </choice>
> </define>
> <define name="style-chart-properties-attlist" combine="interleave">
>     <optional>
>         <attribute name="chart:label-position">
>             <ref name="labelPositions">
>         </attribute>
>     </optional>
> </define>
> This attribute defines the position of the labels in the chart.
> The values inside and outside are only meaningful for pie charts,
> the other values are only meaningful for other types of charts than pie charts.
>
> <define name="style-chart-properties-attlist" combine="interleave">
>     <optional>
>         <attribute name="chart:label-alignment">
>             <list>
>                 <ref name="horiBackPos"/>
>                 <ref name="vertBackPos"/>
>             </list>
>         </attribute>
>     </optional>
> </define>
> This attribute defines the alignment of the label relatively to the position point defined by label-position.
>
> [I found horiBackPos and vertBackPos in the existing RelaxNG schema; the first one is "left or center or right",
> the second one is "top or center or bottom".]
>
> <define name="style-chart-properties-attlist" combine="interleave">
>     <optional>
>         <attribute name="chart:label-position-negative">
>             <ref name="labelPositions">
>         </attribute>
>     </optional>
> </define>
> This attribute, if set, defines the label position for negative values.
> Otherwise, chart:label-position is used for both positive and negative values.
>
> <define name="style-chart-properties-attlist" combine="interleave">
>     <optional>
>         <attribute name="chart:label-alignment-negative">
>             <ref name="labelPositions">
>         </attribute>
>     </optional>
> </define>
> This attribute, if set, defines the alignment of the label for negative values.
> Otherwise, chart:label-alignment is used for both positive and negative values.
>
>
> [In kdchart we also have the notion of gap or distance between the position point and the label,
> do you agree with having this as well in the specification? I'm not sure which unit to use for it though
> (kdchart uses pixels but of course that doesn't work in office suites; I'm happy with leaving that
> aside for now to avoid complexifying the matter).]
>
>   

-- 
Patrick Durusau
patrick@durusau.net
Chair, V1 - US TAG to JTC 1/SC 34
Acting Convener, JTC 1/SC 34/WG 3 (Topic Maps)
Co-Editor, ISO/IEC 13250-1, 13250-5 (Topic Maps)
Co-Editor, OpenDocument Format (OASIS, ISO/IEC 26300)