coopgo/node_modules/ol/geom/flat/intersectsextent.js

/**
 * @module ol/geom/flat/intersectsextent
 */
import { containsExtent, createEmpty, extendFlatCoordinates, intersects, intersectsSegment, } from '../../extent.js';
import { forEach as forEachSegment } from './segments.js';
import { linearRingContainsExtent, linearRingContainsXY } from './contains.js';
/**
 * @param {Array<number>} flatCoordinates Flat coordinates.
 * @param {number} offset Offset.
 * @param {number} end End.
 * @param {number} stride Stride.
 * @param {import("../../extent.js").Extent} extent Extent.
 * @return {boolean} True if the geometry and the extent intersect.
 */
export function intersectsLineString(flatCoordinates, offset, end, stride, extent) {
    var coordinatesExtent = extendFlatCoordinates(createEmpty(), flatCoordinates, offset, end, stride);
    if (!intersects(extent, coordinatesExtent)) {
        return false;
    }
    if (containsExtent(extent, coordinatesExtent)) {
        return true;
    }
    if (coordinatesExtent[0] >= extent[0] && coordinatesExtent[2] <= extent[2]) {
        return true;
    }
    if (coordinatesExtent[1] >= extent[1] && coordinatesExtent[3] <= extent[3]) {
        return true;
    }
    return forEachSegment(flatCoordinates, offset, end, stride, 
    /**
     * @param {import("../../coordinate.js").Coordinate} point1 Start point.
     * @param {import("../../coordinate.js").Coordinate} point2 End point.
     * @return {boolean} `true` if the segment and the extent intersect,
     *     `false` otherwise.
     */
    function (point1, point2) {
        return intersectsSegment(extent, point1, point2);
    });
}
/**
 * @param {Array<number>} flatCoordinates Flat coordinates.
 * @param {number} offset Offset.
 * @param {Array<number>} ends Ends.
 * @param {number} stride Stride.
 * @param {import("../../extent.js").Extent} extent Extent.
 * @return {boolean} True if the geometry and the extent intersect.
 */
export function intersectsLineStringArray(flatCoordinates, offset, ends, stride, extent) {
    for (var i = 0, ii = ends.length; i < ii; ++i) {
        if (intersectsLineString(flatCoordinates, offset, ends[i], stride, extent)) {
            return true;
        }
        offset = ends[i];
    }
    return false;
}
/**
 * @param {Array<number>} flatCoordinates Flat coordinates.
 * @param {number} offset Offset.
 * @param {number} end End.
 * @param {number} stride Stride.
 * @param {import("../../extent.js").Extent} extent Extent.
 * @return {boolean} True if the geometry and the extent intersect.
 */
export function intersectsLinearRing(flatCoordinates, offset, end, stride, extent) {
    if (intersectsLineString(flatCoordinates, offset, end, stride, extent)) {
        return true;
    }
    if (linearRingContainsXY(flatCoordinates, offset, end, stride, extent[0], extent[1])) {
        return true;
    }
    if (linearRingContainsXY(flatCoordinates, offset, end, stride, extent[0], extent[3])) {
        return true;
    }
    if (linearRingContainsXY(flatCoordinates, offset, end, stride, extent[2], extent[1])) {
        return true;
    }
    if (linearRingContainsXY(flatCoordinates, offset, end, stride, extent[2], extent[3])) {
        return true;
    }
    return false;
}
/**
 * @param {Array<number>} flatCoordinates Flat coordinates.
 * @param {number} offset Offset.
 * @param {Array<number>} ends Ends.
 * @param {number} stride Stride.
 * @param {import("../../extent.js").Extent} extent Extent.
 * @return {boolean} True if the geometry and the extent intersect.
 */
export function intersectsLinearRingArray(flatCoordinates, offset, ends, stride, extent) {
    if (!intersectsLinearRing(flatCoordinates, offset, ends[0], stride, extent)) {
        return false;
    }
    if (ends.length === 1) {
        return true;
    }
    for (var i = 1, ii = ends.length; i < ii; ++i) {
        if (linearRingContainsExtent(flatCoordinates, ends[i - 1], ends[i], stride, extent)) {
            if (!intersectsLineString(flatCoordinates, ends[i - 1], ends[i], stride, extent)) {
                return false;
            }
        }
    }
    return true;
}
/**
 * @param {Array<number>} flatCoordinates Flat coordinates.
 * @param {number} offset Offset.
 * @param {Array<Array<number>>} endss Endss.
 * @param {number} stride Stride.
 * @param {import("../../extent.js").Extent} extent Extent.
 * @return {boolean} True if the geometry and the extent intersect.
 */
export function intersectsLinearRingMultiArray(flatCoordinates, offset, endss, stride, extent) {
    for (var i = 0, ii = endss.length; i < ii; ++i) {
        var ends = endss[i];
        if (intersectsLinearRingArray(flatCoordinates, offset, ends, stride, extent)) {
            return true;
        }
        offset = ends[ends.length - 1];
    }
    return false;
}
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