Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | 7x 7x 7x 7x 7x 7x 7x 7x 7x 7x | import type { Types } from '@cornerstonejs/core';
import { vec3 } from 'gl-matrix';
type Line = [Types.Point3, Types.Point3];
/**
* It returns the angle between two lines in degrees.
* The angle measured is that between the vectors
* line1[1]->line1[0] AND line2[0]->line2[1].
* @param line1 - Line = [p1, p2]
* @param line2 - Line = [p3, p4]
* @returns The angle between two lines in degrees.
*/
export default function angleBetweenLines(line1: Line, line2: Line): number {
const [p1, p2] = line1;
const [p3, p4] = line2;
const v1 = vec3.sub(vec3.create(), p2, p1);
const v2 = vec3.sub(vec3.create(), p3, p4);
const dot = vec3.dot(v1, v2);
const v1Length = vec3.length(v1);
const v2Length = vec3.length(v2);
const cos = dot / (v1Length * v2Length);
const radian = Math.acos(cos);
return (radian * 180) / Math.PI;
}
|