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Intermediate refactoring

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Pieter Vander Vennet 2020-07-20 15:59:48 +02:00
parent 93db813cfc
commit 069cddf034
103 changed files with 7950 additions and 0 deletions
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Logic/GeoOperations.js Normal file
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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.GeoOperations = void 0;
var turf = require("turf");
var GeoOperations = /** @class */ (function () {
function GeoOperations() {
}
GeoOperations.surfaceAreaInSqMeters = function (feature) {
return turf.area(feature);
};
GeoOperations.featureIsContainedInAny = function (feature, shouldNotContain, maxOverlapPercentage) {
// Returns 'false' if no problematic intersection is found
if (feature.geometry.type === "Point") {
var coor = feature.geometry.coordinates;
for (var _i = 0, shouldNotContain_1 = shouldNotContain; _i < shouldNotContain_1.length; _i++) {
var shouldNotContainElement = shouldNotContain_1[_i];
var shouldNotContainBBox = BBox.get(shouldNotContainElement);
var featureBBox = BBox.get(feature);
if (!featureBBox.overlapsWith(shouldNotContainBBox)) {
continue;
}
if (this.inside(coor, shouldNotContainElement)) {
return true;
}
}
return false;
}
if (feature.geometry.type === "Polygon" || feature.geometry.type === "MultiPolygon") {
var poly = feature;
var featureBBox = BBox.get(feature);
var featureSurface = GeoOperations.surfaceAreaInSqMeters(poly);
for (var _a = 0, shouldNotContain_2 = shouldNotContain; _a < shouldNotContain_2.length; _a++) {
var shouldNotContainElement = shouldNotContain_2[_a];
var shouldNotContainBBox = BBox.get(shouldNotContainElement);
var overlaps = featureBBox.overlapsWith(shouldNotContainBBox);
if (!overlaps) {
continue;
}
// Calculate the surface area of the intersection
// If it is too big, refuse
try {
var intersection = turf.intersect(poly, shouldNotContainElement);
if (intersection == null) {
continue;
}
var intersectionSize = turf.area(intersection);
var ratio = intersectionSize / featureSurface;
if (ratio * 100 >= maxOverlapPercentage) {
console.log("Refused", poly.id, " due to ", shouldNotContainElement.id, "intersection ratio is ", ratio, "which is bigger then the target ratio of ", (maxOverlapPercentage / 100));
return true;
}
}
catch (exception) {
console.log("EXCEPTION CAUGHT WHILE INTERSECTING: ", exception);
// We assume that this failed due to an intersection
return true;
}
}
return false; // No problematic intersections found
}
return false;
};
/**
* Simple check: that every point of the polygon is inside the container
* @param polygon
* @param container
*/
GeoOperations.isPolygonInside = function (polygon, container) {
for (var _i = 0, _a = polygon.geometry.coordinates[0]; _i < _a.length; _i++) {
var coor = _a[_i];
if (!GeoOperations.inside(coor, container)) {
return false;
}
}
return true;
};
/**
* Simple check: one point of the polygon is inside the container
* @param polygon
* @param container
*/
GeoOperations.isPolygonTouching = function (polygon, container) {
for (var _i = 0, _a = polygon.geometry.coordinates[0]; _i < _a.length; _i++) {
var coor = _a[_i];
if (GeoOperations.inside(coor, container)) {
return true;
}
}
return false;
};
GeoOperations.inside = function (pointCoordinate, feature) {
// ray-casting algorithm based on
// http://www.ecse.rpi.edu/Homepages/wrf/Research/Short_Notes/pnpoly.html
if (feature.geometry.type === "Point") {
return false;
}
var x = pointCoordinate[0];
var y = pointCoordinate[1];
var poly = feature.geometry.coordinates[0];
var inside = false;
for (var i = 0, j = poly.length - 1; i < poly.length; j = i++) {
var coori = poly[i];
var coorj = poly[j];
var xi = coori[0];
var yi = coori[1];
var xj = coorj[0];
var yj = coorj[1];
var intersect = ((yi > y) != (yj > y))
&& (x < (xj - xi) * (y - yi) / (yj - yi) + xi);
if (intersect) {
inside = !inside;
}
}
return inside;
};
;
return GeoOperations;
}());
exports.GeoOperations = GeoOperations;
var BBox = /** @class */ (function () {
function BBox(coordinates) {
this.maxLat = Number.MIN_VALUE;
this.maxLon = Number.MIN_VALUE;
this.minLat = Number.MAX_VALUE;
this.minLon = Number.MAX_VALUE;
for (var _i = 0, coordinates_1 = coordinates; _i < coordinates_1.length; _i++) {
var coordinate = coordinates_1[_i];
this.maxLon = Math.max(this.maxLon, coordinate[0]);
this.maxLat = Math.max(this.maxLat, coordinate[1]);
this.minLon = Math.min(this.minLon, coordinate[0]);
this.minLat = Math.min(this.minLat, coordinate[1]);
}
this.check();
}
BBox.prototype.check = function () {
if (isNaN(this.maxLon) || isNaN(this.maxLat) || isNaN(this.minLon) || isNaN(this.minLat)) {
console.log(this);
throw "BBOX has NAN";
}
};
BBox.prototype.overlapsWith = function (other) {
this.check();
other.check();
if (this.maxLon < other.minLon) {
return false;
}
if (this.maxLat < other.minLat) {
return false;
}
if (this.minLon > other.maxLon) {
return false;
}
if (this.minLat > other.maxLat) {
return false;
}
return true;
};
BBox.get = function (feature) {
if (feature.bbox === undefined) {
if (feature.geometry.type === "MultiPolygon") {
var coordinates = [];
for (var _i = 0, _a = feature.geometry.coordinates; _i < _a.length; _i++) {
var coorlist = _a[_i];
coordinates = coordinates.concat(coorlist[0]);
}
feature.bbox = new BBox(coordinates);
}
else if (feature.geometry.type === "Polygon") {
feature.bbox = new BBox(feature.geometry.coordinates[0]);
}
else if (feature.geometry.type === "LineString") {
feature.bbox = new BBox(feature.geometry.coordinates);
}
else if (feature.geometry.type === "Point") {
// Point
feature.bbox = new BBox([feature.geometry.coordinates]);
}
else {
throw "Cannot calculate bbox, unknown type " + feature.geometry.type;
}
}
return feature.bbox;
};
return BBox;
}());