Special Motion Commands
4.2 Spline interpolation (ASPLINE, BSPLINE, CSPLINE, BAUTO, BNAT, BTAN, EAUTO, ENAT, ETAN, PW,
SD, PL)
Job planning
242 Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
Spline type Properties and use
B spline
3
3
3
3
3
3
3
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Features:
• Does not run through the specified intermediate points along the curve, but
only close to them. The intermediate points to not attract the curve. The
curve characteristic can be additionally influenced by weighting the
intermediate points using a factor.
• The curve characteristic is tangential with continuous curvature.
• Does not generate any undesirable oscillations.
• The area of influence of changes to intermediate points along the curve is
local. This means that a change to an intermediate point along the curve only
affects up to max. 6 adjacent intermediate points.
Application:
Their B spline is primarily intended as interface to CAD systems.
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