La méthode inside() de Turf.js ne retournera pas vrai

Question

J'essaie d'écrire un script qui, en utilisant la méthode inside de Turf.js, prend les coordonnées soumises par l'utilisateur et les associe au secteur de recensement correspondant. Le code ci-dessous, en tant que test, je crois devrait retourner vrai. Ce ne est pas.

Ces coordonnées sont définitivement Wrigley Field. Le polygone de l'enveloppe l'enveloppe. J'ai lissé les deux bits de geoJson et ils sont propres (sauf pour la règle de la main droite).

const wrigleyField = [41.947783, -87.655889]; 
const wrigleyCensusTract = { "type": "Feature", "properties": { "STATEFP10": "17", "COUNTYFP10": "031", "TRACTCE10": "061100", "GEOID10": "17031061100", "NAME10": "611", "NAMELSAD10": "Census Tract 611", "MTFCC10": "G5020", "FUNCSTAT10": "S", "ALAND10": 173037, "AWATER10": 0, "INTPTLAT10": "+41.9491397", "INTPTLON10": "-087.6568035" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ -87.656985, 41.951084 ], [ -87.656858, 41.951086 ], [ -87.656806, 41.951087 ], [ -87.656704, 41.951088 ], [ -87.656661, 41.951088 ], [ -87.656535, 41.951091 ], [ -87.656494, 41.951092 ], [ -87.656325, 41.951094 ], [ -87.656245, 41.951096 ], [ -87.655821, 41.951102 ], [ -87.655653, 41.951105 ], [ -87.655411, 41.951109 ], [ -87.655059, 41.951115 ], [ -87.654685, 41.95112 ], [ -87.654444, 41.951124 ], [ -87.654431, 41.950707 ], [ -87.654395, 41.949459 ], [ -87.654384, 41.949043 ], [ -87.654373, 41.948683 ], [ -87.654344, 41.947698 ], [ -87.654341, 41.947604 ], [ -87.65433, 41.947245 ], [ -87.654576, 41.94724 ], [ -87.654938, 41.947234 ], [ -87.655317, 41.947228 ], [ -87.655565, 41.947225 ], [ -87.655755, 41.947221 ], [ -87.656313, 41.947213 ], [ -87.656325, 41.947212 ], [ -87.656516, 41.947202 ], [ -87.656663, 41.947194 ], [ -87.656849, 41.947184 ], [ -87.657104, 41.94718 ], [ -87.657252, 41.947178 ], [ -87.657382, 41.947176 ], [ -87.657635, 41.947171 ], [ -87.657739, 41.94717 ], [ -87.658784, 41.947154 ], [ -87.659168, 41.947149 ], [ -87.659165, 41.947254 ], [ -87.659167, 41.94733 ], [ -87.659176, 41.947623 ], [ -87.659181, 41.947876 ], [ -87.659186, 41.948059 ], [ -87.65919, 41.94824 ], [ -87.659196, 41.948487 ], [ -87.659204, 41.948785 ], [ -87.65921, 41.948967 ], [ -87.659219, 41.949292 ], [ -87.659229, 41.949598 ], [ -87.659245, 41.950269 ], [ -87.659254, 41.950595 ], [ -87.659257, 41.950685 ], [ -87.659266, 41.950957 ], [ -87.659269, 41.951048 ], [ -87.658928, 41.951052 ], [ -87.657908, 41.951068 ], [ -87.657569, 41.951074 ], [ -87.657468, 41.951075 ], [ -87.657167, 41.951081 ], [ -87.657067, 41.951083 ], [ -87.657014, 41.951083 ], [ -87.656985, 41.951084 ] ] ] } } 

const wrigleyPoint = { "type": "Feature", "properties": { "marker-color": "#0f0" }, "geometry": { "type": "Point", "coordinates": wrigleyField } }; 

console.log(turf.inside(wrigleyPoint, wrigleyCensusTract)); // false 

Que manque-t-il? Pourquoi l'extrait ci-dessus ne renvoie-t-il pas true?

Merci!

Answer 1

Le problème est que vos coordonnées de point sont permutées. Si vous changez de place, cela retournera vrai. Je l'ai testé moi-même avec vos données et je me suis retrouvé après avoir échangé les coordonnées du point. Voici un extrait pour que vous puissiez le tester vous-même.

p1 = { "type": "Feature", "properties": { "STATEFP10": "17", "COUNTYFP10": "031", "TRACTCE10": "061100", "GEOID10": "17031061100", "NAME10": "611", "NAMELSAD10": "Census Tract 611", "MTFCC10": "G5020", "FUNCSTAT10": "S", "ALAND10": 173037, "AWATER10": 0, "INTPTLAT10": "+41.9491397", "INTPTLON10": "-087.6568035" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ -87.656985, 41.951084 ], [ -87.656858, 41.951086 ], [ -87.656806, 41.951087 ], [ -87.656704, 41.951088 ], [ -87.656661, 41.951088 ], [ -87.656535, 41.951091 ], [ -87.656494, 41.951092 ], [ -87.656325, 41.951094 ], [ -87.656245, 41.951096 ], [ -87.655821, 41.951102 ], [ -87.655653, 41.951105 ], [ -87.655411, 41.951109 ], [ -87.655059, 41.951115 ], [ -87.654685, 41.95112 ], [ -87.654444, 41.951124 ], [ -87.654431, 41.950707 ], [ -87.654395, 41.949459 ], [ -87.654384, 41.949043 ], [ -87.654373, 41.948683 ], [ -87.654344, 41.947698 ], [ -87.654341, 41.947604 ], [ -87.65433, 41.947245 ], [ -87.654576, 41.94724 ], [ -87.654938, 41.947234 ], [ -87.655317, 41.947228 ], [ -87.655565, 41.947225 ], [ -87.655755, 41.947221 ], [ -87.656313, 41.947213 ], [ -87.656325, 41.947212 ], [ -87.656516, 41.947202 ], [ -87.656663, 41.947194 ], [ -87.656849, 41.947184 ], [ -87.657104, 41.94718 ], [ -87.657252, 41.947178 ], [ -87.657382, 41.947176 ], [ -87.657635, 41.947171 ], [ -87.657739, 41.94717 ], [ -87.658784, 41.947154 ], [ -87.659168, 41.947149 ], [ -87.659165, 41.947254 ], [ -87.659167, 41.94733 ], [ -87.659176, 41.947623 ], [ -87.659181, 41.947876 ], [ -87.659186, 41.948059 ], [ -87.65919, 41.94824 ], [ -87.659196, 41.948487 ], [ -87.659204, 41.948785 ], [ -87.65921, 41.948967 ], [ -87.659219, 41.949292 ], [ -87.659229, 41.949598 ], [ -87.659245, 41.950269 ], [ -87.659254, 41.950595 ], [ -87.659257, 41.950685 ], [ -87.659266, 41.950957 ], [ -87.659269, 41.951048 ], [ -87.658928, 41.951052 ], [ -87.657908, 41.951068 ], [ -87.657569, 41.951074 ], [ -87.657468, 41.951075 ], [ -87.657167, 41.951081 ], [ -87.657067, 41.951083 ], [ -87.657014, 41.951083 ], [ -87.656985, 41.951084 ] ] ] } }; 
 

 
p2 = {"type": "Feature", "properties": {}, "geometry": {"type": "Point", "coordinates": [-87.655889, 41.947783]}}; 
 

 
alert(turf.inside(p2, p1))

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