ol/geom/flat/reverse.js

OpenLayers mapping library

/**
 * @module ol/geom/flat/reverse
 */
/**
 * @param {Array<number>} flatCoordinates Flat coordinates.
 * @param {number} offset Offset.
 * @param {number} end End.
 * @param {number} stride Stride.
 */
export function coordinates(flatCoordinates, offset, end, stride) {
    while (offset < end - stride) {
        for (var i = 0; i < stride; ++i) {
            var tmp = flatCoordinates[offset + i];
            flatCoordinates[offset + i] = flatCoordinates[end - stride + i];
            flatCoordinates[end - stride + i] = tmp;
        }
        offset += stride;
        end -= stride;
    }
}
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