comunes/todos-contra-el-fuego-web
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Union of polygon to lib

Browse source
This commit is contained in:
vjrj 2018-09-16 17:06:23 +02:00
parent df47bef794
commit e96e6ee8f7
3 changed files with 57 additions and 89 deletions
Download patch file Download diff file Expand all files Collapse all files

52
imports/ui/components/Maps/SubsUnion/Unify.js
View file

@ -1,55 +1,7 @@
import { check } from 'meteor/check';
import tunion from '@turf/union';
import ttrunc from '@turf/truncate';
import { rectangleAround } from 'map-common-utils';
import tcircle from '@turf/circle';
// https://stackoverflow.com/questions/35394577/leaflet-js-union-merge-circles
const truncOptions = { precision: 6, coordinates: 2 };
const unify = (polyList) => {
let unionTemp;
for (let i = 0; i < polyList.length; i += 1) {
const pol = polyList[i];
const cleanPol = ttrunc(pol, truncOptions);
if (i === 0) {
unionTemp = cleanPol;
} else {
unionTemp = ttrunc(tunion(unionTemp, cleanPol), truncOptions);
}
}
return unionTemp;
};
import { calcUnion as calcUnionWoBounds } from 'map-common-utils';
const calcUnion = (L, subs, decorated, typeCircle) => {
const unionGroup = [];
const doCircle = (typeof typeCircle !== 'undefined') ? typeCircle : true;
subs.forEach((osub) => {
try {
if (osub.location && osub.location.lat && osub.location.lon && osub.distance) {
check(osub.location.lon, Number);
check(osub.location.lat, Number);
check(osub.distance, Number);
const dsub = decorated(osub);
const jsonPolygon = doCircle ?
tcircle(
[dsub.location.lon, dsub.location.lat], dsub.distance,
{ units: 'kilometers', steps: 144 }
) :
rectangleAround(
{ lon: dsub.location.lon, lat: dsub.location.lat },
dsub.distance,
(typeof dsub.distanceY !== 'undefined') ? dsub.distanceY : dsub.distance
);
unionGroup.push(jsonPolygon);
} else {
console.info(`Wrong element to do union ${JSON.stringify(osub)}`);
}
} catch (e) {
console.error(e, `Wrong element trying to make union ${JSON.stringify(osub)}`);
}
});
const unionJson = unify(unionGroup);
const unionJson = calcUnionWoBounds(subs, decorated, typeCircle);
return [unionJson, L.geoJSON(unionJson).getBounds()];
};