How to use the @turf/along.default function in @turf/along
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noncomputable / AgentMaps / src / buildings.js View on Github 
function getUnitAnchors(street_feature, bounding_box, unit_options) {
let unit_anchors = [],
unit_length = unit_options.length / 1000, //Kilometers.
unit_buffer = unit_options.side_buffer / 1000, //Distance between units, kilometers.
endpoint = street_feature.geometry.coordinates[street_feature.geometry.coordinates.length - 1],
start_anchor = along(street_feature, 0),
end_anchor = along(street_feature, unit_length),
distance_along = unit_length;
while (end_anchor.geometry.coordinates != endpoint) {
//Exclude proposed anchors if they're outside of the bounding box.
start_coord = L.A.reversedCoordinates(start_anchor.geometry.coordinates),
end_coord = L.A.reversedCoordinates(end_anchor.geometry.coordinates);
if (L.latLngBounds(bounding_box).contains(start_coord) &&
L.latLngBounds(bounding_box).contains(end_coord)) {
unit_anchors.push([start_anchor, end_anchor]);
}
//Find next pair of anchors.
start_anchor = along(street_feature, distance_along + unit_buffer);
end_anchor = along(street_feature, distance_along + unit_buffer + unit_length);endpoint = street_feature.geometry.coordinates[street_feature.geometry.coordinates.length - 1],
start_anchor = along(street_feature, 0),
end_anchor = along(street_feature, unit_length),
distance_along = unit_length;
while (end_anchor.geometry.coordinates != endpoint) {
//Exclude proposed anchors if they're outside of the bounding box.
start_coord = L.A.reversedCoordinates(start_anchor.geometry.coordinates),
end_coord = L.A.reversedCoordinates(end_anchor.geometry.coordinates);
if (L.latLngBounds(bounding_box).contains(start_coord) &&
L.latLngBounds(bounding_box).contains(end_coord)) {
unit_anchors.push([start_anchor, end_anchor]);
}
//Find next pair of anchors.
start_anchor = along(street_feature, distance_along + unit_buffer);
end_anchor = along(street_feature, distance_along + unit_buffer + unit_length);
distance_along += unit_buffer + unit_length
}
return unit_anchors;
}start_anchor = along(street_feature, 0),
end_anchor = along(street_feature, unit_length),
distance_along = unit_length;
while (end_anchor.geometry.coordinates != endpoint) {
//Exclude proposed anchors if they're outside of the bounding box.
start_coord = L.A.reversedCoordinates(start_anchor.geometry.coordinates),
end_coord = L.A.reversedCoordinates(end_anchor.geometry.coordinates);
if (L.latLngBounds(bounding_box).contains(start_coord) &&
L.latLngBounds(bounding_box).contains(end_coord)) {
unit_anchors.push([start_anchor, end_anchor]);
}
//Find next pair of anchors.
start_anchor = along(street_feature, distance_along + unit_buffer);
end_anchor = along(street_feature, distance_along + unit_buffer + unit_length);
distance_along += unit_buffer + unit_length;
}
return unit_anchors;
}end_anchor = along(street_feature, unit_length),
distance_along = unit_length;
while (end_anchor.geometry.coordinates != endpoint) {
//Exclude proposed anchors if they're outside of the bounding box.
start_coord = L.A.reversedCoordinates(start_anchor.geometry.coordinates),
end_coord = L.A.reversedCoordinates(end_anchor.geometry.coordinates);
if (L.latLngBounds(bounding_box).contains(start_coord) &&
L.latLngBounds(bounding_box).contains(end_coord)) {
unit_anchors.push([start_anchor, end_anchor]);
}
//Find next pair of anchors.
start_anchor = along(street_feature, distance_along + unit_buffer);
end_anchor = along(street_feature, distance_along + unit_buffer + unit_length);
distance_along += unit_buffer + unit_length;
}
return unit_anchors;
}function getUnitAnchors(street_feature, bounding_box, unit_options) {
let unit_anchors = [],
unit_length = unit_options.length / 1000, //Kilometers.
unit_buffer = unit_options.side_buffer / 1000, //Distance between units, kilometers.
endpoint = street_feature.geometry.coordinates[street_feature.geometry.coordinates.length - 1],
start_anchor = along(street_feature, 0),
end_anchor = along(street_feature, unit_length),
distance_along = unit_length;
while (end_anchor.geometry.coordinates != endpoint) {
//Exclude proposed anchors if they're outside of the bounding box.
start_coord = L.A.reversedCoordinates(start_anchor.geometry.coordinates),
end_coord = L.A.reversedCoordinates(end_anchor.geometry.coordinates);
if (L.latLngBounds(bounding_box).contains(start_coord) &&
L.latLngBounds(bounding_box).contains(end_coord)) {
unit_anchors.push([start_anchor, end_anchor]);
}
//Find next pair of anchors.
start_anchor = along(street_feature, distance_along + unit_buffer);
end_anchor = along(street_feature, distance_along + unit_buffer + unit_length);
distance_along += unit_buffer + unit_lengthfunction getUnitAnchors(street_feature, bounding_box, unit_options) {
let unit_anchors = [],
unit_length = unit_options.length / 1000, //Kilometers.
unit_buffer = unit_options.side_buffer / 1000, //Distance between units, kilometers.
endpoint = street_feature.geometry.coordinates[street_feature.geometry.coordinates.length - 1],
start_anchor = along(street_feature, 0),
end_anchor = along(street_feature, unit_length),
distance_along = unit_length;
while (end_anchor.geometry.coordinates != endpoint) {
//Exclude proposed anchors if they're outside of the bounding box.
start_coord = L.A.reversedCoordinates(start_anchor.geometry.coordinates),
end_coord = L.A.reversedCoordinates(end_anchor.geometry.coordinates);
if (L.latLngBounds(bounding_box).contains(start_coord) &&
L.latLngBounds(bounding_box).contains(end_coord)) {
unit_anchors.push([start_anchor, end_anchor]);
}
//Find next pair of anchors.
start_anchor = along(street_feature, distance_along + unit_buffer);
end_anchor = along(street_feature, distance_along + unit_buffer + unit_length);start_anchor = along(street_feature, 0),
end_anchor = along(street_feature, unit_length),
distance_along = unit_length;
while (end_anchor.geometry.coordinates != endpoint) {
//Exclude proposed anchors if they're outside of the bounding box.
start_coord = L.A.reversedCoordinates(start_anchor.geometry.coordinates),
end_coord = L.A.reversedCoordinates(end_anchor.geometry.coordinates);
if (L.latLngBounds(bounding_box).contains(start_coord) &&
L.latLngBounds(bounding_box).contains(end_coord)) {
unit_anchors.push([start_anchor, end_anchor]);
}
//Find next pair of anchors.
start_anchor = along(street_feature, distance_along + unit_buffer);
end_anchor = along(street_feature, distance_along + unit_buffer + unit_length);
distance_along += unit_buffer + unit_length
}
return unit_anchors;
}const locations = route.features.map(feature =>
turf(feature, start, options)
);
