modules/layers/src/solid-polygon-layer/polygon.js
function isNestedRingClosed(simplePolygon) {
  // check if first and last vertex are the same
  const p0 = simplePolygon[0];
  const p1 = simplePolygon[simplePolygon.length - 1];

  return p0[0] === p1[0] && p0[1] === p1[1] && p0[2] === p1[2];
}
function isNestedRingClosed(simplePolygon) {
  // check if first and last vertex are the same
  const p0 = simplePolygon[0];
  const p1 = simplePolygon[simplePolygon.length - 1];

  return p0[0] === p1[0] && p0[1] === p1[1] && p0[2] === p1[2];
}
function isNestedRingClosed ( simplePolygon ) { // check if first and last vertex are the same const p0 = simplePolygon [ 0 ] ; const p1 = simplePolygon [ simplePolygon . length - 1 ] ; return p0 [ 0 ] === p1 [ 0 ] && p0 [ 1 ] === p1 [ 1 ] && p0 [ 2 ] === p1 [ 2 ] ; }
Check if a simple polygon is a closed ring
@param {Array} simplePolygon - array of points
@return {Boolean} - true if the simple polygon is a closed ring
Check if a simple polygon is a closed ring