Spline

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Spline is a piecewise curve interpolation with lines. Spline passes through given points and is tangential to given start and end angles.

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It is possible to input spline points directly in the graphic window. Otherwise the left inspector can be used to input number of points and point coordinates.

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Click images/download/thumbnails/95433918/image2022-4-19_19-57-41.png or double-click at last point to finish spline.