OtherIntersection - Documentation

Usage (signatures)

board.create('otherintersection', [el1, el2, p]);

Parameters are two elements which are intersected and a point or an array of points which have to be different from the new intersection point.

Parameters

Name	Type	Description
`el1`	Circle \| Curve \| Line \| Polygon \| PolygonalChain
`el2`	Circle \| Curve \| Line \| Polygon \| PolygonalChain
`p`	Point \| Array

Examples

Create two intersection points of circle and line that are always differing

var p1 = board.create('point', [2.0, 2.0]);
var c1 = board.create('circle', [p1, 2.0]);

var p2 = board.create('point', [2.0, 2.0]);
var p3 = board.create('point', [2.0, 2.0]);
var l1 = board.create('line', [p2, p3]);

var p1 = board.create('intersection', [c1, l1, 0], {name:'D'});
var p2 = board.create('otherintersection', [c1, l1, p1], {name:'E'});

Intersection circle - circle

 var c1 = board.create('circle', [[0, 0], 3]);
 var c2 = board.create('circle', [[2, 2], 3]);

 var p1 = board.create('intersection', [c1, c2, 0]);
 var p2 = board.create('otherintersection', [c1, c2, p1]);

Intersection curve - line

 var curve = board.create('implicitcurve', ['-(y**2) + x**3 - 2 * x + 1'], { strokeWidth: 2 });
 var A = board.create('glider', [-1.5, 1, curve]);
 var B = board.create('glider', [0.5, 0.5, curve]);
 var line = board.create('line', [A, B], { color: 'black', strokeWidth: 1 });
 var C = board.create('otherintersection', [curve, line, [A, B]], {precision: 0.01});
 var D = board.create('point', [() => C.X(), () => -C.Y()], { name: '-C = A + B' });

Intersection curve - curve

 var c1 = board.create('functiongraph', ['x**2 - 3'], { strokeWidth: 2 });
 var A = board.create('point', [0, 2]);
 var c2 = board.create('functiongraph', [(x) => -(x**2) + 2 * A.X() * x + A.Y() - A.X()**2], { strokeWidth: 2 });
 var p1 = board.create('intersection', [c1, c2]);
 var p2 = board.create('otherintersection', [c1, c2, [p1]]);

Attributes