Function labelIntersect

src/label/labelLayoutHelper.ts:586–608

(
    baseLayoutInfo: LabelGeometry | NullUndefined,
    targetLayoutInfo: LabelGeometry | NullUndefined,
    mtv?: PointLike,
    intersectOpt?: BoundingRectIntersectOpt
)

 * Typically this method (and the entire layout process) is performed in normal state.
 */
export function labelIntersect(
    baseLayoutInfo: LabelGeometry | NullUndefined,
    targetLayoutInfo: LabelGeometry | NullUndefined,
    mtv?: PointLike,
    intersectOpt?: BoundingRectIntersectOpt
): boolean {
    if (!baseLayoutInfo || !targetLayoutInfo) {
        return false;
    }
    if ((baseLayoutInfo.label && baseLayoutInfo.label.ignore)
        || (targetLayoutInfo.label && targetLayoutInfo.label.ignore)
    ) {
        return false;
    }
    // Fast rejection.
    if (!baseLayoutInfo.rect.intersect(targetLayoutInfo.rect, mtv, intersectOpt)) {
        return false;
    }
    if (baseLayoutInfo.axisAligned && targetLayoutInfo.axisAligned) {
        return true; // obb is the same as the normal bounding rect.
    }
    return ensureOBB(baseLayoutInfo).intersect(ensureOBB(targetLayoutInfo), mtv, intersectOpt);
}