Files
openlayers/src/ol/geom/flat/flip.js
Tim Schaub 054af09032 Make code prettier
This updates ESLint and our shared eslint-config-openlayers to use Prettier.  Most formatting changes were automatically applied with this:

    npm run lint -- --fix

A few manual changes were required:

 * In `examples/offscreen-canvas.js`, the `//eslint-disable-line` comment needed to be moved to the appropriate line to disable the error about the `'worker-loader!./offscreen-canvas.worker.js'` import.
 * In `examples/webpack/exapmle-builder.js`, spaces could not be added after a couple `function`s for some reason.  While editing this, I reworked `ExampleBuilder` to be a class.
 * In `src/ol/format/WMSGetFeatureInfo.js`, the `// @ts-ignore` comment needed to be moved down one line so it applied to the `parsersNS` argument.
2020-04-06 12:54:09 -06:00

42 lines
941 B
JavaScript

/**
* @module ol/geom/flat/flip
*/
/**
* @param {Array<number>} flatCoordinates Flat coordinates.
* @param {number} offset Offset.
* @param {number} end End.
* @param {number} stride Stride.
* @param {Array<number>=} opt_dest Destination.
* @param {number=} opt_destOffset Destination offset.
* @return {Array<number>} Flat coordinates.
*/
export function flipXY(
flatCoordinates,
offset,
end,
stride,
opt_dest,
opt_destOffset
) {
let dest, destOffset;
if (opt_dest !== undefined) {
dest = opt_dest;
destOffset = opt_destOffset !== undefined ? opt_destOffset : 0;
} else {
dest = [];
destOffset = 0;
}
let j = offset;
while (j < end) {
const x = flatCoordinates[j++];
dest[destOffset++] = flatCoordinates[j++];
dest[destOffset++] = x;
for (let k = 2; k < stride; ++k) {
dest[destOffset++] = flatCoordinates[j++];
}
}
dest.length = destOffset;
return dest;
}