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This commit is contained in:
Mark Tolmacs 2024-09-25 11:59:27 +02:00
parent 392dd5b0b8
commit b697f63cad
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18 changed files with 206 additions and 199 deletions
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16
packages/math/arc.ts
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@ -1,7 +1,7 @@
import { cartesian2Polar, radians } from "./angle";
import { ellipse, interceptPointsOfLineAndEllipse } from "./ellipse";
import { ellipse, ellipseSegmentInterceptPoints } from "./ellipse";
import { point } from "./point";
import type { GenericPoint, LineSegment, Radians, SymmetricArc } from "./types";
import type { GenericPoint, Segment, Radians, Arc } from "./types";
import { PRECISION } from "./utils";
/**
@ -20,15 +20,15 @@ export function arc<Point extends GenericPoint>(
startAngle: Radians,
endAngle: Radians,
) {
return { center, radius, startAngle, endAngle } as SymmetricArc<Point>;
return { center, radius, startAngle, endAngle } as Arc<Point>;
}
/**
* Determines if a cartesian point lies on a symmetric arc, i.e. an arc which
* is part of a circle contour centered on 0, 0.
*/
export function isPointOnSymmetricArc<P extends GenericPoint>(
{ center, radius: arcRadius, startAngle, endAngle }: SymmetricArc<P>,
export function arcIncludesPoint<P extends GenericPoint>(
{ center, radius: arcRadius, startAngle, endAngle }: Arc<P>,
p: P,
): boolean {
const [radius, angle] = cartesian2Polar(
@ -47,10 +47,10 @@ export function isPointOnSymmetricArc<P extends GenericPoint>(
* point and end point and a symmetric arc.
*/
export function interceptOfSymmetricArcAndSegment<Point extends GenericPoint>(
a: Readonly<SymmetricArc<Point>>,
l: Readonly<LineSegment<Point>>,
a: Readonly<Arc<Point>>,
l: Readonly<Segment<Point>>,
): Point[] {
return interceptPointsOfLineAndEllipse(
return ellipseSegmentInterceptPoints(
ellipse(a.center, radians(0), a.radius, a.radius),
l,
).filter((candidate) => {