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Subject: [OASIS Issue Tracker] Commented: (OFFICE-2872) NEEDS-DISCUSSION20.24 chart:interpolation - definitions of b-spline and cubic-spine seeminsufficient
[ http://tools.oasis-open.org/issues/browse/OFFICE-2872?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=21331#action_21331 ] Andreas Guelzow commented on OFFICE-2872: ------------------------------------------ Dennis, Bezier curves are special b-splines, in fact a Bezier curve is a B-spline without internal knots. According to the OOo code, OOo constructs for this situation B-splines that are not Bezier curves but (at least as far as I can tell) non-periodic B-splines. I thin kI have enough information to propose a resolution for this once we decide whether we want to have true interpolation or want to use the data points just as control points. I believe the former would be more useful. > NEEDS-DISCUSSION 20.24 chart:interpolation - definitions of b-spline and cubic-spine seem insufficient > ------------------------------------------------------------------------------------------------------ > > Key: OFFICE-2872 > URL: http://tools.oasis-open.org/issues/browse/OFFICE-2872 > Project: OASIS Open Document Format for Office Applications (OpenDocument) TC > Issue Type: Bug > Components: Chart > Affects Versions: ODF 1.2 CD 05 > Reporter: Patrick Durusau > Assignee: Andreas Guelzow > Fix For: ODF 1.2 CD 06 > > > 20.24 chart:interpolation - definitions of b-spline and cubic-spine seem insufficient > Read in full: > "b-spline - B-Splines. The chart:spline-order attribute specifies the order of the polynomials used for calculation. 20.48 The chart:spline-resolution attribute specifies the number of interpolated points between two data points. 20.49 > cubic-spline - Cubic Splines. The chart:spline-resolution attribute specifies the number of interpolated points between two data points. 20.49" > Ok as far as it goes but doesn't tell me anything about b-spline and cubic-spine. > In fact, simply repeats information already present elsewhere. > Suggest deleting the definitions as written and supplying definitions for these attributes. > There is an implied statement of polynomials somewhere but it isn't clear where from this entry. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://tools.oasis-open.org/issues/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
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