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http://www.openoffice.org/issues/show_bug.cgi?id=72218
                 Issue #|72218
                 Summary|new chart: handling of B-splines is obscure
               Component|Chart
                 Version|680m188
                Platform|PC
                     URL|
              OS/Version|Windows XP
                  Status|UNCONFIRMED
       Status whiteboard|
                Keywords|
              Resolution|
              Issue type|ENHANCEMENT
                Priority|P4
            Subcomponent|ui
             Assigned to|kla
             Reported by|regina





------- Additional comments from [EMAIL PROTECTED] Sat Dec  2 15:46:50 -0800 
2006 -------
You have subordered the B-spline variant under "smooth". I think, that is not
correct. If you draw a B-spline, your data points are not points on the curve,
but they are used as control points to form the B-spline curve. So a B-spline
curve is more like a Bézier curve. It is complete different from smoothing a
line with interpolation like in the case of cubic splines, which goes through
the data points.

People who know nothing about B-splines will be confused, what will become out
of there polyline. Those who know, what a B-spline curve is, will be confused to
find them as variant of a polyline.

The resolution of the cubic spline divides the interval between neighbour points
and you get different length, if the distance between the points are different.
For B-splines the whole range from first to last point is divided in equal
distances.

Therefore B-Spline curves are so much different from cubic splines that they
should get an icon beside the polyline variants and get a handling for them 
alone.

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