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Sampler Wzniesienie
Umożliwia próbkowanie wysokości w określonych lokalizacjach.
Przykład poniżej pokazuje, jak za pomocą tej klasy można określić najwyższy punkt na trasie z Denver do Grand Junction w Kolorado, narysować go na mapie i zapisać mapę na Dysku Google.
// Get directions from Denver to Grand Junction.constdirections=Maps.newDirectionFinder().setOrigin('Denver, CO').setDestination('Grand Junction, CO').setMode(Maps.DirectionFinder.Mode.DRIVING).getDirections();constroute=directions.routes[0];// Get elevation samples along the route.constnumberOfSamples=30;constresponse=Maps.newElevationSampler().samplePath(route.overview_polyline.points,numberOfSamples,);// Determine highest point.lethighestLocation=null;lethighestElevation=Number.MIN_VALUE;for(constsampleofresponse.results){if(sample.elevation > highestElevation){highestElevation=sample.elevation;highestLocation=sample.location;}}// Add the path and marker to a map.constmap=Maps.newStaticMap().addPath(route.overview_polyline.points).addMarker(highestLocation.lat,highestLocation.lng);// Save the map to your driveDriveApp.createFile(Utilities.newBlob(map.getMapImage(),'image/png','map.png'),);
Zwraca dane wysokościowe dla kilku próbek wzdłuż linii zdefiniowanej za pomocą zakodowanej linii złożonej.
Szczegółowa dokumentacja
sampleLocation(latitude, longitude)
Zwraca dane dotyczące wysokości pojedynczego punktu (szer/dł).
// Gets the elevation of Times Square using a point.constdata=Maps.newElevationSampler().sampleLocation(40.759011,-73.984472);Logger.log(data.results[0].elevation);
Parametry
Nazwa
Typ
Opis
latitude
Number
szerokość geograficzna punktu, z którego mają być pobierane próbki.
longitude
Number
długość geograficzna punktu, z którego mają być pobierane dane.
Powrót
Object – obiekt JSON zawierający dane wysokościowe opisane tutaj
sampleLocations(points)
Zwraca dane dotyczące wysokości dla serii punktów (lat/lng).
// Gets the elevation of Times Square and Central Park using points.constdata=Maps.newElevationSampler().sampleLocations([// Times Square40.759011,-73.984472,// Central Park40.777052,-73.975464,]);Logger.log(`Times Square: ${data.results[0].elevation}`);Logger.log(`Central Park: ${data.results[1].elevation}`);
Parametry
Nazwa
Typ
Opis
points
Number[]
tablica par szerokości i długości geograficznej
Powrót
Object – obiekt JSON zawierający dane wysokościowe opisane tutaj
sampleLocations(encodedPolyline)
Zwraca dane dotyczące wysokości punktów w zakodowanej ścieżce wielokąta.
// Gets the elevation of Times Square and Central Park using a polyline.constdata=Maps.newElevationSampler().sampleLocations('yvwwF|aqbMwoBiw@');Logger.log(`Times Square: ${data.results[0].elevation}`);Logger.log(`Central Park: ${data.results[1].elevation}`);
Parametry
Nazwa
Typ
Opis
encodedPolyline
String
zakodowana linia złożona z punktów do próbkowania;
Powrót
Object – obiekt JSON zawierający dane wysokościowe opisane tutaj
samplePath(points, numSamples)
Zwraca dane wysokościowe dla wielu próbek wzdłuż linii zdefiniowanej za pomocą ciągu punktów.
// Gets the elevation of five points between Times Square and Central Park.constdata=Maps.newElevationSampler().samplePath([// Times Square40.759011,-73.984472,// Central Park40.777052,-73.975464,],5,);for(leti=0;i < data.results.length;i++){Logger.log(data.results[i].elevation);}
Parametry
Nazwa
Typ
Opis
points
Number[]
tablica par szerokości i długości geograficznej określająca ścieżkę do próbkowania
numSamples
Integer
liczba punktów do próbkowania wzdłuż ścieżki punktów;
Powrót
Object – obiekt JSON zawierający dane wysokościowe opisane tutaj
samplePath(encodedPolyline, numSamples)
Zwraca dane wysokościowe dla kilku próbek wzdłuż linii zdefiniowanej za pomocą zakodowanej linii złożonej.
// Gets the elevation of five points between Times Square and Central Park.constdata=Maps.newElevationSampler().samplePath('yvwwF|aqbMwoBiw@',5);for(leti=0;i < data.results.length;i++){Logger.log(data.results[i].elevation);}
Parametry
Nazwa
Typ
Opis
encodedPolyline
String
zakodowany wielokąt z punktami określający ścieżkę do próbkowania
numSamples
Integer
liczba punktów do próbkowania wzdłuż ścieżki punktów;
Powrót
Object – obiekt JSON zawierający dane wysokościowe opisane tutaj
[[["Łatwo zrozumieć","easyToUnderstand","thumb-up"],["Rozwiązało to mój problem","solvedMyProblem","thumb-up"],["Inne","otherUp","thumb-up"]],[["Brak potrzebnych mi informacji","missingTheInformationINeed","thumb-down"],["Zbyt skomplikowane / zbyt wiele czynności do wykonania","tooComplicatedTooManySteps","thumb-down"],["Nieaktualne treści","outOfDate","thumb-down"],["Problem z tłumaczeniem","translationIssue","thumb-down"],["Problem z przykładami/kodem","samplesCodeIssue","thumb-down"],["Inne","otherDown","thumb-down"]],["Ostatnia aktualizacja: 2025-07-26 UTC."],[[["\u003cp\u003eThe \u003ccode\u003eElevationSampler\u003c/code\u003e class allows you to retrieve elevation data for specific locations or along a path.\u003c/p\u003e\n"],["\u003cp\u003eYou can sample elevation for single points, multiple points defined by latitude/longitude pairs or encoded polylines, and along paths.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003esampleLocation\u003c/code\u003e, \u003ccode\u003esampleLocations\u003c/code\u003e, and \u003ccode\u003esamplePath\u003c/code\u003e methods provide various ways to retrieve elevation data.\u003c/p\u003e\n"],["\u003cp\u003eResults are returned as a JSON object containing elevation, latitude, and longitude information for each sampled point.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eElevationSampler\u003c/code\u003e can be used for tasks such as finding the highest point along a route, as demonstrated in the provided example.\u003c/p\u003e\n"]]],[],null,["# Class ElevationSampler\n\nElevationSampler\n\nAllows for the sampling of elevations at particular locations. \n\nThe example below shows how you can use this class to determine the highest point along the route\nfrom Denver to Grand Junction in Colorado, plot it on a map, and save the map to Google Drive.\n\n```javascript\n// Get directions from Denver to Grand Junction.\nconst directions = Maps.newDirectionFinder()\n .setOrigin('Denver, CO')\n .setDestination('Grand Junction, CO')\n .setMode(Maps.DirectionFinder.Mode.DRIVING)\n .getDirections();\nconst route = directions.routes[0];\n\n// Get elevation samples along the route.\nconst numberOfSamples = 30;\nconst response = Maps.newElevationSampler().samplePath(\n route.overview_polyline.points,\n numberOfSamples,\n);\n\n// Determine highest point.\n\nlet highestLocation = null;\nlet highestElevation = Number.MIN_VALUE;\nfor (const sample of response.results) {\n if (sample.elevation \u003e highestElevation) {\n highestElevation = sample.elevation;\n highestLocation = sample.location;\n }\n}\n\n// Add the path and marker to a map.\nconst map = Maps.newStaticMap()\n .addPath(route.overview_polyline.points)\n .addMarker(highestLocation.lat, highestLocation.lng);\n\n// Save the map to your drive\nDriveApp.createFile(\n Utilities.newBlob(map.getMapImage(), 'image/png', 'map.png'),\n);\n```\n\n#### See also\n\n- [Google Elevation API](/maps/documentation/elevation) \n\n### Methods\n\n| Method | Return type | Brief description |\n|------------------------------------------------------------------------|-------------|-------------------------------------------------------------------------------------------------|\n| [sampleLocation(latitude, longitude)](#sampleLocation(Number,Number)) | `Object` | Returns elevation data for a single point (lat/lng). |\n| [sampleLocations(points)](#sampleLocations(Number)) | `Object` | Returns elevation data for a series of points (lat/lng). |\n| [sampleLocations(encodedPolyline)](#sampleLocations(String)) | `Object` | Returns elevation data for the points in an encoded polyline. |\n| [samplePath(points, numSamples)](#samplePath(Number,Integer)) | `Object` | Returns elevation data for a number of samples along a line, defined using a series of points. |\n| [samplePath(encodedPolyline, numSamples)](#samplePath(String,Integer)) | `Object` | Returns elevation data for a number of samples along a line, defined using an encoded polyline. |\n\nDetailed documentation\n----------------------\n\n### `sample``Location(latitude, longitude)`\n\nReturns elevation data for a single point (lat/lng).\n\n```javascript\n// Gets the elevation of Times Square using a point.\nconst data = Maps.newElevationSampler().sampleLocation(40.759011, -73.984472);\nLogger.log(data.results[0].elevation);\n```\n\n#### Parameters\n\n| Name | Type | Description |\n|-------------|----------|--------------------------------------|\n| `latitude` | `Number` | the latitude of the point to sample |\n| `longitude` | `Number` | the longitude of the point to sample |\n\n#### Return\n\n\n`Object` --- a JSON Object containing the elevation data, as described [here](/maps/documentation/elevation#ElevationResponses)\n\n*** ** * ** ***\n\n### `sample``Locations(points)`\n\nReturns elevation data for a series of points (lat/lng).\n\n```javascript\n// Gets the elevation of Times Square and Central Park using points.\nconst data = Maps.newElevationSampler().sampleLocations([\n // Times Square\n 40.759011,\n -73.984472,\n // Central Park\n 40.777052,\n -73.975464,\n]);\nLogger.log(`Times Square: ${data.results[0].elevation}`);\nLogger.log(`Central Park: ${data.results[1].elevation}`);\n```\n\n#### Parameters\n\n| Name | Type | Description |\n|----------|------------|--------------------------------------|\n| `points` | `Number[]` | an array of latitude/longitude pairs |\n\n#### Return\n\n\n`Object` --- a JSON Object containing the elevation data, as described [here](/maps/documentation/elevation#ElevationResponses)\n\n*** ** * ** ***\n\n### `sample``Locations(encodedPolyline)`\n\nReturns elevation data for the points in an encoded polyline.\n\n```javascript\n// Gets the elevation of Times Square and Central Park using a polyline.\nconst data = Maps.newElevationSampler().sampleLocations('yvwwF|aqbMwoBiw@');\nLogger.log(`Times Square: ${data.results[0].elevation}`);\nLogger.log(`Central Park: ${data.results[1].elevation}`);\n```\n\n#### Parameters\n\n| Name | Type | Description |\n|---------------------|----------|-----------------------------------------|\n| `encoded``Polyline` | `String` | an encoded polyline of points to sample |\n\n#### Return\n\n\n`Object` --- a JSON Object containing the elevation data, as described [here](/maps/documentation/elevation#ElevationResponses)\n\n*** ** * ** ***\n\n### `sample``Path(points, numSamples)`\n\nReturns elevation data for a number of samples along a line, defined using a series of points.\n\n```javascript\n// Gets the elevation of five points between Times Square and Central Park.\nconst data = Maps.newElevationSampler().samplePath(\n [\n // Times Square\n 40.759011,\n -73.984472,\n // Central Park\n 40.777052,\n -73.975464,\n ],\n 5,\n);\nfor (let i = 0; i \u003c data.results.length; i++) {\n Logger.log(data.results[i].elevation);\n}\n```\n\n#### Parameters\n\n| Name | Type | Description |\n|----------------|------------|---------------------------------------------------------------------|\n| `points` | `Number[]` | an array of latitude/longitude pairs defining a path to sample over |\n| `num``Samples` | `Integer` | the number of points to sample along the path of points |\n\n#### Return\n\n\n`Object` --- a JSON Object containing the elevation data, as described [here](/maps/documentation/elevation#ElevationResponses)\n\n*** ** * ** ***\n\n### `sample``Path(encodedPolyline, numSamples)`\n\nReturns elevation data for a number of samples along a line, defined using an encoded polyline.\n\n```javascript\n// Gets the elevation of five points between Times Square and Central Park.\nconst data = Maps.newElevationSampler().samplePath('yvwwF|aqbMwoBiw@', 5);\nfor (let i = 0; i \u003c data.results.length; i++) {\n Logger.log(data.results[i].elevation);\n}\n```\n\n#### Parameters\n\n| Name | Type | Description |\n|---------------------|-----------|--------------------------------------------------------------|\n| `encoded``Polyline` | `String` | an encoded polyline of points defining a path to sample over |\n| `num``Samples` | `Integer` | the number of points to sample along the path of points |\n\n#### Return\n\n\n`Object` --- a JSON Object containing the elevation data, as described [here](/maps/documentation/elevation#ElevationResponses)"]]