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Add workaround for turf.intersect which can't deal with touching polygons

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This commit is contained in:
Pieter Vander Vennet 2021-12-24 02:48:04 +01:00
parent d7d60da148
commit 92c63560ef
5 changed files with 2077 additions and 1827 deletions
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17
Logic/GeoOperations.ts
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@ -357,7 +357,6 @@ export class GeoOperations {
* Returns null if the features are not intersecting
*/
private static calculateInstersection(feature, otherFeature, featureBBox: BBox, otherFeatureBBox?: BBox): number {
try {
if (feature.geometry.type === "LineString") {
@ -427,19 +426,25 @@ export class GeoOperations {
return this.calculateInstersection(otherFeature, feature, otherFeatureBBox, featureBBox)
}
try{
const intersection = turf.intersect(feature, otherFeature);
if (intersection == null) {
return null;
}
return turf.area(intersection); // in m²
}catch(e){
if(e.message === "Each LinearRing of a Polygon must have 4 or more Positions."){
// WORKAROUND TIME!
// See https://github.com/Turfjs/turf/pull/2238
return null;
}
throw e;
}
}
throw "CalculateIntersection fallthrough: can not calculate an intersection between features"
} catch (exception) {
console.warn("EXCEPTION CAUGHT WHILE INTERSECTING: ", exception,"\nThe considered objects are",feature, otherFeature);
return undefined
}
return undefined;
}
/**