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 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 | import type { Types } from '@cornerstonejs/core';
import { cleanupPolylines } from './sharedOperations';
import arePolylinesIdentical from '../math/polyline/arePolylinesIdentical';
import { subtractPolylineSets } from './polylineSubtract';
import type { PolylineInfoCanvas } from './polylineInfoTypes';
import { areViewReferencesEqual } from './areViewReferencesEqual';
/**
* Performs the XOR (exclusive or) operation on two sets of polylines.
* Returns polylines that are in one set or the other, but not both (by polyline and viewReference).
* If both sets are identical, returns an empty array.
*
* @param polylinesSetA The first set of PolylineInfoCanvas
* @param polylinesSetB The second set of PolylineInfoCanvas
* @returns Array of PolylineInfoCanvas that are unique to each set
*/
export function xorPolylinesSets(
polylinesSetA: PolylineInfoCanvas[],
polylinesSetB: PolylineInfoCanvas[]
): PolylineInfoCanvas[] {
if (!polylinesSetA.length && !polylinesSetB.length) {
return [];
}
if (!polylinesSetA.length) {
return polylinesSetB;
}
if (!polylinesSetB.length) {
return polylinesSetA;
}
if (polylinesSetA.length === polylinesSetB.length) {
let allIdentical = true;
for (let i = 0; i < polylinesSetA.length; i++) {
let foundMatch = false;
for (let j = 0; j < polylinesSetB.length; j++) {
if (
!areViewReferencesEqual(
polylinesSetA[i].viewReference,
polylinesSetB[j].viewReference
)
) {
continue; // Skip if view references are not equal
}
if (
arePolylinesIdentical(
polylinesSetA[i].polyline,
polylinesSetB[j].polyline
)
) {
foundMatch = true;
break;
}
}
if (!foundMatch) {
allIdentical = false;
break;
}
}
if (allIdentical) {
return [];
}
}
const aMinusB = subtractPolylineSets(polylinesSetA, polylinesSetB);
const bMinusA = subtractPolylineSets(polylinesSetB, polylinesSetA);
const xorResult = [...aMinusB, ...bMinusA];
return xorResult;
}
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