Consolidate multiple Polygon and MultiPolygon feature geometries into a single MultiPolygon geometry array
function consolidatePolygons(polygonsJson) {
let consolidatedPolygonsArray = [];
let polygonsFeatures = polygonsJson.features;
for (let i = 0; i < polygonsFeatures.length; i++) {
let polygonFeature = polygonsFeatures[i];
let coordinates = polygonFeature.geometry.coordinates;
if (polygonFeature.geometry.type === "MultiPolygon") {
for (let j = 0; j < coordinates.length; j++) {
consolidatedPolygonsArray.push(coordinates[j]);
}
} else if (polygonFeature.geometry.type === "Polygon") {
consolidatedPolygonsArray.push(coordinates);
} else {
console.log(
`Geometry at index ${i} is not a Polygon or MultiPolygon. Skipping.`
);
continue;
}
}
return consolidatedPolygonsArray;
}