Named curve methods: basis family
The basis family of curve methods includes: basis (a cubic basis spline repeating the end points), basis-open (an open cubic basis spline), and basis-closed (a closed cubic basis spline).
Observable Plot · all subjects
curves/curve-methods
10 notes, read out of this brain and free to use. Each one was extracted from a source and is re-checked against its exam.
Named curve methods: bump family
The bump family of curve methods includes: bump-x (a Bézier curve with horizontal tangents) and bump-y (a Bézier curve with vertical tangents).
Named curve methods: bundle
The bundle method is a straightened cubic basis spline suitable for lines only, not areas.
Named curve methods: cardinal family
The cardinal family of curve methods includes: cardinal (a cubic cardinal spline with one-sided differences at the ends), cardinal-open (an open cubic cardinal spline), and cardinal-closed (a closed cubic cardinal spline).
Named curve methods: catmull-rom family
The catmull-rom family of curve methods includes: catmull-rom (a cubic Catmull-Rom spline with one-sided differences at the ends), catmull-rom-open (an open cubic Catmull-Rom spline), and catmull-rom-closed (a closed cubic Catmull-Rom spline).
Named curve methods: linear family
The linear family of curve methods includes: linear (a piecewise linear curve with straight line segments) and linear-closed (a closed piecewise linear curve with straight line segments).
Named curve methods: monotone family
The monotone family of curve methods includes: monotone-x (a cubic spline that preserves monotonicity in x) and monotone-y (a cubic spline that preserves monotonicity in y).
Named curve methods: natural
The natural curve method is a natural cubic spline.
Named curve methods: step family
The step family of curve methods includes: step (a piecewise constant function where y changes at the midpoint of x), step-after (a piecewise constant function where y changes after x), and step-before (a piecewise constant function where x changes after y).
Named curve method: auto
The auto curve method is like linear, but uses the possibly spherical projection if any. The auto curve is only available for the line mark and link mark and is typically used in conjunction with a spherical projection to interpolate along geodesics. Available from version 0.6.1.