2 KiB
| title |
|---|
| utils.lineIntersectsCircle() |
The utils.lineIntersectsCircle() function finds the intersection between a line
segment from point from to point to and a circle with its center at point
center and a radius of radius mm.
Signature
array | false utils.lineIntersectsCircle(
Point center,
float radius,
Point from,
Point to,
string sort = 'x'
)
The 5th and last parameter controls the sorting of the found intersections. When this returns 2 intersections, you can choose how they are ordered in the returned array:
Set sort to:
x: The point with the lowest X-coordinate will go first (left to right)y: The point with the lowest Y-coordinate will go first (top to bottom)
Example
```js ({ Point, points, Path, paths, Snippet, snippets, utils, part }) => {points.A = new Point(95, 45) .addCircle(35, "fabric") points.B = new Point(55, 50) points.C = new Point(75, 30)
points.D = new Point(55, 65) points.E = new Point(115, 5) points.F = new Point(65, 75) points.G = new Point(125, 15)
paths.line1 = new Path().move(points.B).line(points.C) paths.line2 = new Path().move(points.D).line(points.E) paths.line3 = new Path().move(points.F).line(points.G)
const intersections1 = utils.lineIntersectsCircle( points.A, points.A.attributes.get("data-circle"), points.B, points.C ) const intersections2 = utils.lineIntersectsCircle( points.A, points.A.attributes.get("data-circle"), points.D, points.E, "y" ) const intersections3 = utils.lineIntersectsCircle( points.A, points.A.attributes.get("data-circle"), points.F, points.G ) snippets.first1 = new Snippet("bnotch", intersections1[0]) snippets.first2 = new Snippet("bnotch", intersections2[0]) snippets.second2 = new Snippet("notch", intersections2[1]) snippets.first3 = new Snippet("bnotch", intersections3[0]) snippets.second3 = new Snippet("notch", intersections3[1])
return part }
</Example>