Cardinalspline

Element

Cardinal spline curve through a given data set. Create a dynamic cardinal spline interpolated curve given by sample points \(p_1\) to \(p_n\).

Usage (signatures)

board.create('cardinalspline', [...point, tau, typeopt]);

Parameters are the points for the spline interpolation.

Parameters

Name	Type	Attributes	Default	Description
`point`	PointLike	<repeatable>		Unspecified number of points
`tau`	NumberLike			Tension parameter
`type`	String	<optional>	`'uniform'`	Type of the cardinal spline, may be 'uniform' (default) or 'centripetal'

Example

// Create a cardinal spline out of an array of points with adjustable tension

// Create array of points
var p = [];
p.push(board.create('point',[0,0]));
p.push(board.create('point',[1,4]));
p.push(board.create('point',[4,5]));
p.push(board.create('point',[2,3]));
p.push(board.create('point',[3,0]));

// tension
var tau = board.create('slider', [[-4,-5],[2,-5],[0.001,0.5,1]], {name:'tau'});
var c = board.create('cardinalspline', [p, function(){ return tau.Value();}], {strokeWidth:3});

Attributes

Own

createPoints

isArrayOfCoordinates

points

createPoints

Description

Controls if the data points of the cardinal spline when given as arrays should be converted into JXG.Points.

Type

Boolean

Default Value

true

See

Cardinalspline#points

Source

options.js, line 4795

isArrayOfCoordinates

Description: If set to true, the supplied coordinates are interpreted as [[x_0, y_0], [x_1, y_1], p, ...]. Otherwise, if the data consists of two arrays of equal length, it is interpreted as [[x_o x_1, ..., x_n], [y_0, y_1, ..., y_n]]
Type: Boolean
Default Value: true
Source: options.js, line 4810