Implement #467: smooth curved lines for CategoryChart#947
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Add isSmooth()/setSmooth(boolean) to CategorySeries and use cubic Bezier curves in PlotContent_Category_Bar for both Line and Area render styles, matching the existing smooth behaviour in XYChart. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Feature
Adds
setSmooth(true)support toCategorySeries, enabling smooth cubic Bezier curves forLineandArearender styles inCategoryChart— the same behaviour already available inXYChart.Changes
CategorySeries: addedsmoothfield withisSmooth()/setSmooth()PlotContent_Category_Bar: Line and Area paths usecurveTowhenisSmooth()is true, falling back to straight lines otherwiseTestForIssue467: demo with two series — one smooth, one normal — over string X-axis labelsCloses #467