Discussion :

[xavlight]

Bonjour,

Je recherche une méthode qui permettrait de connaître la zone cadastrale, sous forme de feature par exemple.

Je pars de l'information id parcelle que j'ai ou depuis les coordonnées du point sur la parcelle.

Il y a bien la couche PCI express, mais je voudrais le feature en retour.
Cela me permettrait de l'afficher sur ma carte.

Merci pour vos idées.

Xav

[NJNDEV]

En ligne tu obtiens cela:
https://canaldeventavonsttropez.fr/r...lan-du-reseau/
Le code de la fonction retourne les features de la parcelle (à exploiter selon tes envies).

Code JavaScript :

Sélectionner tout - Visualiser dans une fenêtre à part

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function coordPar(locationVar) {	
	//var resultDiv = document.getElementById("result");
	let feature;
	httpRequest = new XMLHttpRequest();
  	httpRequest.onreadystatechange = function(){
		if (httpRequest.readyState === XMLHttpRequest.DONE && httpRequest.status === 200) { //OK200;
			url = "https://geocodage.ign.fr/look4/parcel/search?q=" + locationVar;
			/*url = "https://geocodage.ign.fr/look4/geocode/search?index=parcel&q=" + locationVar;*/
			fetch(url)
				.then(response => response.json())
				.then(data => {
					var locations = data.features;
					let feature = locations[0];
					if (typeof feature !== 'undefined') {
						yretour = (feature.geometry.coordinates[0]);								
						xretour = (feature.geometry.coordinates[1]);
						//.catch(error => console.error(error));
						}
						else{Gp.Services.geocode({
								apiKey: "choisirgeoportail", 
								location: locationVar,
								filterOptions: {type: "CadastralParcel"},
								onSuccess: function(result) {
									xretour=(JSON.stringify(result.locations[0]["position"]["x"]))
									yretour=(JSON.stringify(result.locations[0]["position"]["y"]))
									xretour= parseFloat (xretour)
									yretour= parseFloat (yretour)
									document.getElementById("info" ).innerHTML = Affiche+'Ancien GEOCODAGE!';
									document.getElementById("carteParcelle").disabled = false; 
									document.getElementById("carteParcelle").value="Affichage de la Carte";
								}
							});							
						return	
					}					
					})
			document.getElementById("info" ).innerHTML = Affiche+'Nouveau GEOCODAGE!';
			document.getElementById("carteParcelle").disabled = false; 
			document.getElementById("carteParcelle").value = "Affichage de la Carte";
		}// fin 200
		else  
		if (httpRequest.readyState === XMLHttpRequest.DONE && httpRequest.status >= 400){
				/*if (httpRequest.status === 503 || httpRequest.status === 0){ */
				/*if (httpRequest.status >=400){	*/
						Gp.Services.geocode({
							apiKey: "choisirgeoportail", 
							location: locationVar,
							filterOptions: {type: "CadastralParcel"},
							onSuccess: function(result) {
								xretour=(JSON.stringify(result.locations[0]["position"]["x"]))
								yretour=(JSON.stringify(result.locations[0]["position"]["y"]))
								xretour= parseFloat (xretour)
								yretour= parseFloat (yretour)
								document.getElementById("info" ).innerHTML =Affiche+'Ancien GEOCODAGE!';
								document.getElementById("carteParcelle").disabled = false; 
								document.getElementById("carteParcelle").value="Affichage de la Carte";
							}
						});								
				/*} // fin 503-404	*/
		}// fin readyState DONE
	} // fin httpRequest.onreadystatechange
	httpRequest.open('GET', 'https://geocodage.ign.fr/look4/getCapabilities');//
	//httpRequest.open('GET', 'https://geocodage.ign.fr/look3/getCapabilities');  //Test pour 404
	httpRequest.send();	
} // fin coordPar

Cordialement

[xavlight]

Bonjour,
Merci de m'avoir rafraichi la mémoire.

J'avais déjà utilisé cette requête et c'est bien cela qu'il me faut.

Cette API béta 1.0 répond à vraiment bcp de chose. J'ai hâte de pouvoir jouer avec la 2.0 dès qu'elle arrive.

Pour mon cas précis où je souhaite récupérer la géometrie de la parcelle, il faut ajouter le paramètre 'returnTrueGeometry=true'

Recherche par un id de parcelle :

• url : https://geocodage.ign.fr/look4/parce...eGeometry=true
• résultat :
  

  Code json :

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  {"type":"FeatureCollection",
  "features":[{"type":"Feature","properties":{"identifiant":"940670000D0050","codeDepartement":"94","codeCommune":"067","nomCommune":"Saint-Mandé","codeCommuneAbs":"000","codeArrondissement":"000","section":"0D","numero":"0050","feuille":1,
  "trueGeometry":{"type":"MultiPolygon","coordinates":[[[[2.42508994456497,48.8442969665848],[2.42504111349698,48.844301498491],[2.42499596521425,48.8443056883365],[2.42499958780457,48.8443231532288],[2.42474780801253,48.8443452361022],[2.42474884145526,48.8443503673931],[2.42475252524637,48.8443499354291],[2.42477293752591,48.8444511210384],[2.42476966347987,48.8444514650378],[2.42478039182994,48.8445041288641],[2.42478440227766,48.8445234842695],[2.42465986398817,48.8445354763689],[2.42467438773153,48.8446022783193],[2.42351916139963,48.8447138131408],[2.42358743619193,48.8450087706037],[2.42359627778866,48.8450471256928],[2.4237489500446,48.8457072674717],[2.42383572545576,48.8456971629731],[2.42417204463073,48.8456583112895],[2.42451752424772,48.8456166247944],[2.4246789198418,48.845598874358],[2.42481113468311,48.8455829619897],[2.42513695472897,48.8455445967303],[2.42523437839556,48.8455326537413],[2.4253409430661,48.8455196753569],[2.42533915447958,48.8455088745214],[2.42533226372766,48.8454664818626],[2.42532653126201,48.8454426214529],[2.4253155227139,48.845390585925],[2.42530256159198,48.8453302669588],[2.42526606950686,48.8451548975138],[2.42525110198553,48.8450788301942],[2.42519267992013,48.8447915655963],[2.42515269225288,48.8445996311116],[2.42512627043589,48.8444749435537],[2.42508994456497,48.8442969665848]]]]},
  "_score":1,"_type":"parcel"},
  "geometry":{"type":"Point","coordinates":[2.42438853221005,48.8449001681]}}]}

Recherche par coordonnées géographiques EPSG:4326 (Circle, radius)

• url : https://geocodage.ign.fr/look4/parce...eGeometry=true
• résultat :
  

  Code json :

  Sélectionner tout - Visualiser dans une fenêtre à part

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  {"type":"FeatureCollection",
  "features":[{"type":"Feature","properties":{"identifiant":"940670000D0050","codeDepartement":"94","codeCommune":"067","nomCommune":"Saint-Mandé","codeCommuneAbs":"000","codeArrondissement":"000","section":"0D","numero":"0050","feuille":1,
  "trueGeometry":{"type":"MultiPolygon","coordinates":[[[[2.42508994456497,48.8442969665848],[2.42504111349698,48.844301498491],[2.42499596521425,48.8443056883365],[2.42499958780457,48.8443231532288],[2.42474780801253,48.8443452361022],[2.42474884145526,48.8443503673931],[2.42475252524637,48.8443499354291],[2.42477293752591,48.8444511210384],[2.42476966347987,48.8444514650378],[2.42478039182994,48.8445041288641],[2.42478440227766,48.8445234842695],[2.42465986398817,48.8445354763689],[2.42467438773153,48.8446022783193],[2.42351916139963,48.8447138131408],[2.42358743619193,48.8450087706037],[2.42359627778866,48.8450471256928],[2.4237489500446,48.8457072674717],[2.42383572545576,48.8456971629731],[2.42417204463073,48.8456583112895],[2.42451752424772,48.8456166247944],[2.4246789198418,48.845598874358],[2.42481113468311,48.8455829619897],[2.42513695472897,48.8455445967303],[2.42523437839556,48.8455326537413],[2.4253409430661,48.8455196753569],[2.42533915447958,48.8455088745214],[2.42533226372766,48.8454664818626],[2.42532653126201,48.8454426214529],[2.4253155227139,48.845390585925],[2.42530256159198,48.8453302669588],[2.42526606950686,48.8451548975138],[2.42525110198553,48.8450788301942],[2.42519267992013,48.8447915655963],[2.42515269225288,48.8445996311116],[2.42512627043589,48.8444749435537],[2.42508994456497,48.8442969665848]]]]},
  "_score":1,"_type":"parcel"},
  "geometry":{"type":"Point","coordinates":[2.42438853221005,48.8449001681]}}]}

Merci
Cordialement