ab3204f9f1
The replaces the NextJS site powering FreeSewing.dev with a Docusaurus setup. It's part of my efforts to simplify FreeSewing's setup so we can focus on our core value proposition.
66 lines
1.6 KiB
Text
66 lines
1.6 KiB
Text
---
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title: utils.circlesIntersect()
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---
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The `utils.circlesIntersect()` function finds the intersections between two
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circles described by their center point and radius.
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## Signature
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```js
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array | false utils.circlesIntersect(
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Point centerA,
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float radiusA,
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Point centerB,
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float radiusB,
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string sort = 'x'
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)
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```
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The 5th and last parameter controls the _sorting_ of the found intersections.
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When this returns 2 intersections, you can choose how they are ordered in the returned array:
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Set sort to:
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- `x` : The point with the lowest X-coordinate will go first (left to right)
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- `y` : The point with the lowest Y-coordinate will go first (top to bottom)
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## Example
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<Example caption="A Utils.circlesIntersect() example">
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```js
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({ Point, points, Snippet, snippets, utils, part }) => {
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points.A = new Point(10, 10)
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.addCircle(15, "fabric")
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points.B = new Point(30, 30)
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.addCircle(35, "fabric")
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points.C = new Point(90, 10)
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.addCircle(15, "various")
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points.D = new Point(110, 30)
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.addCircle(35, "various")
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const intersections1 = utils.circlesIntersect(
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points.A,
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points.A.attributes.get("data-circle"),
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points.B,
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points.B.attributes.get("data-circle")
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)
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const intersections2 = utils.circlesIntersect(
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points.C,
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points.C.attributes.get("data-circle"),
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points.D,
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points.D.attributes.get("data-circle"),
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"y"
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)
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snippets.first1 = new Snippet("bnotch", intersections1[0])
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snippets.second1 = new Snippet("notch", intersections1[1])
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snippets.first2 = new Snippet("bnotch", intersections2[0])
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snippets.second2 = new Snippet("notch", intersections2[1])
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return part
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}
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```
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</Example>
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