Modals.getRandom(function(err, data) {
console.log(data)
var fc = turf.random(type, data.count, {
bbox: data.bbox
})
fc.features = fc.features.concat(layer.geojson.features)
layer.mapLayer.clearLayers()
layer.mapLayer = false
LayerActions.update(layer.id, {geojson: fc})
})
function generate_points(polygon, number) {
let query_points = [];
while (query_points.length < number) {
var chunk = turf
.random('points', number, { bbox: turf.bbox(polygon)})
.features
.map(x => x.geometry.coordinates)
.filter(pt => turf.inside(pt, polygon));
query_points = query_points.concat(chunk);
}
return query_points.slice(0, number);
}
function generate_points(polygon, number, coordinates_number, max_distance) {
let query_points = [];
while (query_points.length < number) {
let points = [];
while(points.length < coordinates_number) {
let chunk = turf
.random('points', coordinates_number, { bbox: turf.bbox(polygon)})
.features
.map(x => x.geometry.coordinates)
.filter(pt => turf.inside(pt, polygon));
if (max_distance > 0)
{
chunk.forEach(pt => {
if (points.length == 0)
{
points.push(pt);
}
else
{
let distance = turf.distance(pt, points[points.length-1], 'meters');
if (distance < max_distance)
{
points.push(pt);
}
}
});
}
else
{
points = points.concat(chunk);
}
}
query_points.push(points);
}
return query_points;
}