Apache OpenOffice (AOO) Bugzilla – Full Text Issue Listing
|Summary:||new chart: handling of B-splines is obscure|
|Product:||General||Reporter:||Regina Henschel <rb.henschel>|
|Component:||chart||Assignee:||AOO issues mailing list <issues>|
|Status:||CONFIRMED ---||QA Contact:|
|Priority:||P4||CC:||IngridvdM, issues, tony.galmiche.ooo|
|Version:||3.3.0 or older (OOo)|
|Issue Type:||ENHANCEMENT||Latest Confirmation in:||---|
Description Regina Henschel 2006-12-02 23:46:50 UTC
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 BÃ©zier 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.
Comment 1 kla 2006-12-04 14:42:02 UTC
@IHA: Pls have a look.
Comment 2 IngridvdM 2006-12-04 15:00:24 UTC
Thanks. Yes I think we should consider to change this.
Comment 3 IngridvdM 2006-12-11 16:24:05 UTC
@ Matthias: Please take over for discussion and decision. Thanks Ingrid.
Comment 4 matthias.mueller-prove 2009-09-06 11:02:01 UTC
I am no longer officially active on OOo. Please take over.