Pengumuman: Semua project nonkomersial yang terdaftar untuk menggunakan Earth Engine sebelum
15 April 2025 harus
memverifikasi kelayakan nonkomersial untuk mempertahankan akses Earth Engine.
Map.addLayer
Tetap teratur dengan koleksi
Simpan dan kategorikan konten berdasarkan preferensi Anda.
Menambahkan objek EE tertentu ke peta sebagai lapisan.
Menampilkan lapisan peta baru.
Penggunaan | Hasil |
---|
Map.addLayer(eeObject, visParams, name, shown, opacity) | ui.Map.Layer |
Argumen | Jenis | Detail |
---|
eeObject | Collection|Feature|Image|RawMapId | Objek yang akan ditambahkan ke peta. |
visParams | FeatureVisualizationParameters|ImageVisualizationParameters, opsional | Parameter visualisasi. Untuk Gambar dan ImageCollection, lihat ee.data.getMapId untuk parameter yang valid. Untuk Fitur dan FeatureCollection, satu-satunya kunci yang didukung adalah "color", sebagai string warna CSS 3.0 atau string hex dalam format "RRGGBB". Diabaikan jika eeObject adalah ID peta. |
name | String, opsional | Nama lapisan. Defaultnya adalah "Layer N". |
shown | Boolean, opsional | Tanda yang menunjukkan apakah lapisan harus aktif secara default. |
opacity | Nomor, opsional | Opasitas lapisan ditampilkan sebagai angka antara 0 dan 1. Default-nya adalah 1. |
Contoh
Code Editor (JavaScript)
// A Sentinel-2 surface reflectance image.
var image = ee.Image('COPERNICUS/S2_SR/20210109T185751_20210109T185931_T10SEG');
Map.setCenter(-121.87, 37.44, 9);
// Set multi-band RGB image visualization parameters. If the "bands" parameter
// is not defined, the first three bands are used.
var rgbVis = {
bands: ['B11', 'B8', 'B3'],
min: 0,
max: 3000
};
Map.addLayer(image, rgbVis, 'Multi-band RGB image');
// Set band-specific "min" and "max" properties.
var rgbVisBandSpec = {
bands: ['B11', 'B8', 'B3'],
min: [0, 75, 150],
max: [3500, 3000, 2500]
};
Map.addLayer(image, rgbVisBandSpec, 'Band-specific min/max');
// If you don't specify "min" and "max" properties, they will be determined
// from the data type range, often resulting in an ineffective color stretch.
Map.addLayer(image.select('B8'), null, 'Default visParams');
// If an image layer has already been styled, set "visParams" as null.
var imageRgb = image.visualize(rgbVis);
Map.addLayer(imageRgb, null, 'Pre-styled image');
// Use the "palette" parameter with single-band image inputs to define the
// linear color gradient to stretch between the "min" and "max" values.
var singleBandVis = {
min: 0,
max: 3000,
palette: ['blue', 'yellow', 'green']
};
Map.addLayer(image.select('B8'), singleBandVis, 'Single-band palette');
// Images within ImageCollections are automatically mosaicked according to mask
// status and image order. The last image in the collection takes priority,
// invalid pixels are filled by valid pixels in preceding images.
var imageCol = ee.ImageCollection('COPERNICUS/S2_SR')
.filterDate('2021-03-01', '2021-04-01');
Map.addLayer(imageCol, rgbVis, 'ImageCollection mosaic');
// FeatureCollection, Feature, and Geometry objects can be styled using the
// "color" parameter.
var featureCol = ee.FeatureCollection('WCMC/WDPA/current/polygons');
Map.addLayer(featureCol, {color: 'purple'}, 'FeatureCollection');
Kecuali dinyatakan lain, konten di halaman ini dilisensikan berdasarkan Lisensi Creative Commons Attribution 4.0, sedangkan contoh kode dilisensikan berdasarkan Lisensi Apache 2.0. Untuk mengetahui informasi selengkapnya, lihat Kebijakan Situs Google Developers. Java adalah merek dagang terdaftar dari Oracle dan/atau afiliasinya.
Terakhir diperbarui pada 2025-07-26 UTC.
[null,null,["Terakhir diperbarui pada 2025-07-26 UTC."],[[["\u003cp\u003e\u003ccode\u003eMap.addLayer()\u003c/code\u003e overlays Earth Engine objects like images and features onto the map as a new layer.\u003c/p\u003e\n"],["\u003cp\u003eVisualization parameters can be customized using the \u003ccode\u003evisParams\u003c/code\u003e argument to control how the layer is displayed.\u003c/p\u003e\n"],["\u003cp\u003eThis function accepts Earth Engine objects (like Image, FeatureCollection, Geometry), visualization parameters, layer name, visibility, and opacity as arguments.\u003c/p\u003e\n"],["\u003cp\u003eThe function returns the added map layer as a \u003ccode\u003eui.Map.Layer\u003c/code\u003e object, which can be further manipulated.\u003c/p\u003e\n"],["\u003cp\u003ePre-styled images or those with inherent visualization can be added by setting \u003ccode\u003evisParams\u003c/code\u003e to null.\u003c/p\u003e\n"]]],["The `Map.addLayer` function adds an Earth Engine object to a map as a layer, returning the new `ui.Map.Layer`. It accepts an `eeObject` (Collection, Feature, Image, or RawMapId), optional `visParams` for visualization, `name` for the layer's label, `shown` (boolean) to set default visibility, and `opacity` (0-1). Visualization parameters vary by object type; `color` is the only supported parameter for Features, while Images support `bands`, `min`, `max`, and `palette`. ImageCollections are mosaicked, and the last images take precedence.\n"],null,["# Map.addLayer\n\n\u003cbr /\u003e\n\nAdds a given EE object to the map as a layer.\n\n\u003cbr /\u003e\n\nReturns the new map layer.\n\n| Usage | Returns |\n|------------------------------------------------------------------------------|--------------|\n| `Map.addLayer(eeObject, `*visParams* `, `*name* `, `*shown* `, `*opacity*`)` | ui.Map.Layer |\n\n| Argument | Type | Details |\n|-------------|------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `eeObject` | Collection\\|Feature\\|Image\\|RawMapId | The object to add to the map. |\n| `visParams` | FeatureVisualizationParameters\\|ImageVisualizationParameters, optional | The visualization parameters. For Images and ImageCollection, see ee.data.getMapId for valid parameters. For Features and FeatureCollections, the only supported key is \"color\", as a CSS 3.0 color string or a hex string in \"RRGGBB\" format. Ignored when eeObject is a map ID. |\n| `name` | String, optional | The name of the layer. Defaults to \"Layer N\". |\n| `shown` | Boolean, optional | A flag indicating whether the layer should be on by default. |\n| `opacity` | Number, optional | The layer's opacity represented as a number between 0 and 1. Defaults to 1. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// A Sentinel-2 surface reflectance image.\nvar image = ee.Image('COPERNICUS/S2_SR/20210109T185751_20210109T185931_T10SEG');\nMap.setCenter(-121.87, 37.44, 9);\n\n// Set multi-band RGB image visualization parameters. If the \"bands\" parameter\n// is not defined, the first three bands are used.\nvar rgbVis = {\n bands: ['B11', 'B8', 'B3'],\n min: 0,\n max: 3000\n};\nMap.addLayer(image, rgbVis, 'Multi-band RGB image');\n\n// Set band-specific \"min\" and \"max\" properties.\nvar rgbVisBandSpec = {\n bands: ['B11', 'B8', 'B3'],\n min: [0, 75, 150],\n max: [3500, 3000, 2500]\n};\nMap.addLayer(image, rgbVisBandSpec, 'Band-specific min/max');\n\n// If you don't specify \"min\" and \"max\" properties, they will be determined\n// from the data type range, often resulting in an ineffective color stretch.\nMap.addLayer(image.select('B8'), null, 'Default visParams');\n\n// If an image layer has already been styled, set \"visParams\" as null.\nvar imageRgb = image.visualize(rgbVis);\nMap.addLayer(imageRgb, null, 'Pre-styled image');\n\n// Use the \"palette\" parameter with single-band image inputs to define the\n// linear color gradient to stretch between the \"min\" and \"max\" values.\nvar singleBandVis = {\n min: 0,\n max: 3000,\n palette: ['blue', 'yellow', 'green']\n};\nMap.addLayer(image.select('B8'), singleBandVis, 'Single-band palette');\n\n// Images within ImageCollections are automatically mosaicked according to mask\n// status and image order. The last image in the collection takes priority,\n// invalid pixels are filled by valid pixels in preceding images.\nvar imageCol = ee.ImageCollection('COPERNICUS/S2_SR')\n .filterDate('2021-03-01', '2021-04-01');\nMap.addLayer(imageCol, rgbVis, 'ImageCollection mosaic');\n\n// FeatureCollection, Feature, and Geometry objects can be styled using the\n// \"color\" parameter.\nvar featureCol = ee.FeatureCollection('WCMC/WDPA/current/polygons');\nMap.addLayer(featureCol, {color: 'purple'}, 'FeatureCollection');\n```"]]