Ikuti langkah-langkah berikut untuk menyiapkan gaya visual berbasis data untuk set data.
Mendapatkan kunci API dan mengaktifkan API
Sebelum menggunakan gaya visual berbasis data untuk set data, Anda memerlukan:
Project Google Cloud dengan akun penagihan, serta Maps JavaScript API dan Maps Datasets API yang diaktifkan.
Untuk mempelajari lebih lanjut, lihat
Menyiapkan project Google Cloud.
Untuk membuat ID peta baru,
ikuti langkah-langkah di bagian
Penyesuaian cloud.
Tetapkan jenis Peta ke JavaScript, dan pilih opsi Vector.
Berikan ID peta menggunakan properti mapId saat Anda membuat instance peta.
ID peta harus sesuai dengan gaya peta yang terkait dengan set data yang akan ditampilkan.
Untuk menggunakan gaya visual berbasis data untuk set data, pertama-tama muat Maps JavaScript API, dengan menambahkan loader bootstrap inline ke kode aplikasi Anda, seperti yang ditampilkan di sini (gunakan v=beta di tag script API Anda):
<script>
(g=>{varh,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});vard=b.maps||(b.maps={}),r=newSet,e=newURLSearchParams,u=()=>h||(h=newPromise(async(f,n)=>{await(a=m.createElement("script"));e.set("libraries",[...r]+"");for(king)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=>h=n(Error(p+" could not load."));a.nonce=m.querySelector("script[nonce]")?.nonce||"";m.head.append(a)}));d[l]?console.warn(p+" only loads once. Ignoring:",g):d[l]=(f,...n)=>r.add(f)&&u().then(()=>d[l](f,...n))})({key:"YOUR_API_KEY",v:"weekly",// Use the 'v' parameter to indicate the version to use (weekly, beta, alpha, etc.).// Add other bootstrap parameters as needed, using camel case.});
</script>
Memeriksa kemampuan peta (opsional)
Gaya visual berbasis data untuk set data memerlukan ID peta. Jika ID peta tidak ada, atau ID peta yang tidak valid diteruskan, fitur data tidak dapat dimuat. Sebagai langkah pemecahan masalah, Anda dapat menambahkan pemroses mapcapabilities_changed untuk mengikuti perubahan kemampuan peta. Langkah ini akan menunjukkan apakah kondisi berikut telah terpenuhi:
ID peta yang digunakan valid.
ID peta dikaitkan dengan peta vektor.
Penggunaan Kemampuan Peta bersifat opsional, dan hanya direkomendasikan untuk tujuan pengujian dan pemecahan masalah, atau untuk tujuan penggantian runtime.
// Optional: subscribe to map capability changes.map.addListener('mapcapabilities_changed',()=>{constmapCapabilities=map.getMapCapabilities();if(!mapCapabilities.isDataDrivenStylingAvailable){// Data-driven styling is *not* available, add a fallback.// Existing feature layers are also unavailable.}});
[[["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 2025-09-05 UTC."],[[["\u003cp\u003eTo utilize data-driven styling for datasets, obtain an API key, enable necessary APIs (Maps JavaScript API and Maps Datasets API), and create a map ID associated with a vector-based map style.\u003c/p\u003e\n"],["\u003cp\u003eInitialization involves providing the map ID during map instantiation and loading the Maps JavaScript API with the \u003ccode\u003ev=beta\u003c/code\u003e parameter in the script tag.\u003c/p\u003e\n"],["\u003cp\u003eFor troubleshooting, optionally use the \u003ccode\u003emapcapabilities_changed\u003c/code\u003e listener to verify map capabilities, such as a valid map ID linked to a vector map, ensuring data-driven styling functionality.\u003c/p\u003e\n"],["\u003cp\u003eAfter setup, proceed to create and upload a dataset to leverage data-driven styling within your maps.\u003c/p\u003e\n"]]],["To utilize data-driven styling, first get an API key and enable the Maps JavaScript and Datasets APIs. Create a map ID of type \"JavaScript\" and \"Vector,\" then associate it with a new map style. In the map initialization code, use the `mapId` property with your created ID and load the Maps JavaScript API with an inline bootstrap loader. Optionally, use a `mapcapabilities_changed` listener to ensure a valid map ID is used and troubleshoot any issues.\n"],null,["Select platform: [Android](/maps/documentation/android-sdk/dds-datasets/start \"View this page for the Android platform docs.\") [iOS](/maps/documentation/ios-sdk/dds-datasets/start \"View this page for the iOS platform docs.\") [JavaScript](/maps/documentation/javascript/dds-datasets/start \"View this page for the JavaScript platform docs.\")\n\n\u003cbr /\u003e\n\nFollow these steps to get set up with the data-driven styling for datasets.\n\nGet an API key and enable APIs\n\nBefore using the data-driven styling for datasets, you need:\nGoogle Cloud project with a billing account, and both the\nMaps JavaScript API and the Maps Datasets API enabled.\nTo learn more, see\n[Set up your Google Cloud project](/maps/documentation/javascript/cloud-setup).\n\n[Get an API key](/maps/documentation/javascript/get-api-key)\n\n\n[Enable the Maps JavaScript API](https://console.cloud.google.com/apis/library/maps-backend.googleapis.com)\n\n\n[Enable the Maps Datasets API](https://console.cloud.google.com/apis/library/mapsplatformdatasets.googleapis.com)\n\nCreate a map ID\n\nTo create a new [map ID](/maps/documentation/javascript/map-ids/mapid-over),\nfollow the steps in\n[Cloud customization](/maps/documentation/javascript/map-ids/get-map-id).\nSet the Map type to **JavaScript** , and select the **Vector** option.\n\nProvide a map ID using the `mapId` property when you instantiate the map .\nThe map ID must correspond to the map style that is associated with the dataset\nto display. \n\n```javascript\nconst position = new google.maps.LatLng(40.75, -74.05);\nconst map = new google.maps.Map(document.getElementById('map'), {\n zoom: 11,\n center: position,\n mapId: 'YOUR_MAP_ID',\n});\n```\n\nCreate a new map style\n\nTo create a new map style, follow the instructions in\n[Create and use map styles](/maps/documentation/javascript/cloud-customization/map-styles-leg)\nto create the style, and\n[associate the style with the map ID you just created](/maps/documentation/javascript/cloud-customization/map-styles-leg#associate-style-with-map-id).\n\nUpdate your map initialization code\n\nTo use the data-driven styling for datasets, first load the\nMaps JavaScript API, by adding the inline bootstrap loader to\nyour application code, as shown here\n(use `v=beta` in your API `script` tag): \n\n```javascript\n\u003cscript\u003e\n (g=\u003e{var h,a,k,p=\"The Google Maps JavaScript API\",c=\"google\",l=\"importLibrary\",q=\"__ib__\",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=\u003eh||(h=new Promise(async(f,n)=\u003e{await (a=m.createElement(\"script\"));e.set(\"libraries\",[...r]+\"\");for(k in g)e.set(k.replace(/[A-Z]/g,t=\u003e\"_\"+t[0].toLowerCase()),g[k]);e.set(\"callback\",c+\".maps.\"+q);a.src=`https://maps.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=\u003eh=n(Error(p+\" could not load.\"));a.nonce=m.querySelector(\"script[nonce]\")?.nonce||\"\";m.head.append(a)}));d[l]?console.warn(p+\" only loads once. Ignoring:\",g):d[l]=(f,...n)=\u003er.add(f)&&u().then(()=\u003ed[l](f,...n))})({\n key: \"YOUR_API_KEY\",\n v: \"weekly\",\n // Use the 'v' parameter to indicate the /maps/documentation/javascript/versions to use (weekly, beta, alpha, etc.).\n // Add other /maps/documentation/javascript/load-maps-js-api#required_parameters as needed, using camel case.\n });\n\u003c/script\u003e\n```\n\nCheck map capabilities (optional)\n\nData-driven styling for datasets requires a map ID. If the map ID is missing,\nor an invalid map ID is passed, data features cannot load. As a\ntroubleshooting step, you can add a `mapcapabilities_changed` listener to\nsubscribe to map capability changes. This will indicate whether the following\nconditions have been met:\n\n- A valid map ID is in use.\n- The map ID is associated with a vector map.\n\nUsing Map Capabilities is optional, and recommended only for testing and\ntroubleshooting purposes, or for runtime fallback purposes. \n\n```javascript\n// Optional: subscribe to map capability changes.\nmap.addListener('mapcapabilities_changed', () =\u003e {\n const mapCapabilities = map.getMapCapabilities();\n\n if (!mapCapabilities.isDataDrivenStylingAvailable) {\n // Data-driven styling is *not* available, add a fallback.\n // Existing feature layers are also unavailable.\n }\n});\n```\n\nNext steps\n\n- [Create and upload a dataset](/maps/documentation/javascript/dds-datasets/create-dataset)"]]
