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Sampler Elevasi
Memungkinkan pengambilan sampel elevasi di lokasi tertentu.
Contoh di bawah menunjukkan cara menggunakan class ini untuk menentukan titik tertinggi di sepanjang rute
dari Denver ke Grand Junction di Colorado, memetakan titik tersebut di peta, dan menyimpan peta ke Google Drive.
// 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'),);
Menampilkan data elevasi untuk sejumlah sampel di sepanjang garis, yang ditentukan menggunakan polyline yang dienkode.
Dokumentasi mendetail
sampleLocation(latitude, longitude)
Menampilkan data elevasi untuk satu titik (lat/lng).
// Gets the elevation of Times Square using a point.constdata=Maps.newElevationSampler().sampleLocation(40.759011,-73.984472);Logger.log(data.results[0].elevation);
Parameter
Nama
Jenis
Deskripsi
latitude
Number
lintang titik yang akan diambil sampelnya
longitude
Number
bujur titik yang akan diambil sampelnya
Pulang pergi
Object — Objek JSON yang berisi data elevasi, seperti yang dijelaskan di sini
sampleLocations(points)
Menampilkan data elevasi untuk serangkaian titik (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}`);
Parameter
Nama
Jenis
Deskripsi
points
Number[]
array pasangan lintang/bujur
Pulang pergi
Object — Objek JSON yang berisi data elevasi, seperti yang dijelaskan di sini
sampleLocations(encodedPolyline)
Menampilkan data elevasi untuk titik dalam polyline yang dienkode.
// 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}`);
Parameter
Nama
Jenis
Deskripsi
encodedPolyline
String
polyline titik yang dienkode untuk diambil sampelnya
Pulang pergi
Object — Objek JSON yang berisi data elevasi, seperti yang dijelaskan di sini
samplePath(points, numSamples)
Menampilkan data elevasi untuk sejumlah sampel di sepanjang garis, yang ditentukan menggunakan serangkaian titik.
// 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);}
Parameter
Nama
Jenis
Deskripsi
points
Number[]
array pasangan lintang/bujur yang menentukan jalur untuk diambil sampelnya
numSamples
Integer
jumlah titik yang akan diambil sampelnya di sepanjang jalur titik
Pulang pergi
Object — Objek JSON yang berisi data elevasi, seperti yang dijelaskan di sini
samplePath(encodedPolyline, numSamples)
Menampilkan data elevasi untuk sejumlah sampel di sepanjang garis, yang ditentukan menggunakan polyline yang dienkode.
// 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);}
Parameter
Nama
Jenis
Deskripsi
encodedPolyline
String
polyline titik yang dienkode yang menentukan jalur untuk diambil sampelnya
numSamples
Integer
jumlah titik yang akan diambil sampelnya di sepanjang jalur titik
Pulang pergi
Object — Objek JSON yang berisi data elevasi, seperti yang dijelaskan di sini
[[["Mudah dipahami","easyToUnderstand","thumb-up"],["Memecahkan masalah saya","solvedMyProblem","thumb-up"],["Lainnya","otherUp","thumb-up"]],[["Informasi yang saya butuhkan tidak ada","missingTheInformationINeed","thumb-down"],["Terlalu rumit/langkahnya terlalu banyak","tooComplicatedTooManySteps","thumb-down"],["Sudah usang","outOfDate","thumb-down"],["Masalah terjemahan","translationIssue","thumb-down"],["Masalah kode / contoh","samplesCodeIssue","thumb-down"],["Lainnya","otherDown","thumb-down"]],["Terakhir diperbarui pada 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)"]]