INNER CODE UNIT · TypeScript

sin

hyscaler/HyCanvas · packages/a11y/src/index.ts:100

      const sin = Math.sin(rad);
      const sx = t.scaleX ?? 1;
      const sy = t.scaleY ?? 1;
      const w = s.width ?? 0;
      const h = s.height ?? 0;
      let top = Infinity;
      let cx = 0;
      let cy = 0;
      for (const [px, py] of [[0, 0], [w, 0], [w, h], [0, h]] as const) {
        const x = (t.x ?? 0) + cos * sx * px - sin * sy * py;
        const y = (t.y ?? 0) + sin * sx * px + cos * sy * py;
        top = Math.min(top, y);
        cx += x / 4;
        cy += y / 4;
      }
      return { cx, top, cy };
    };
    let backward = 0;

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