ui.Map.addLayer
Restez organisé à l'aide des collections
Enregistrez et classez les contenus selon vos préférences.
Ajoute un objet EE donné à la carte en tant que calque.
Renvoie le nouveau calque de carte.
Utilisation | Renvoie |
---|
Map.addLayer(eeObject, visParams, name, shown, opacity) | ui.Map.Layer |
Argument | Type | Détails |
---|
ceci : ui.map | ui.Map | Instance ui.Map. |
eeObject | Collection|Feature|Image|MapId | Objet à ajouter à la carte. |
visParams | FeatureVisualizationParameters|ImageVisualizationParameters, facultatif | Paramètres de visualisation. Pour les types Images et ImageCollection, consultez ee.data.getMapId pour connaître les paramètres valides. Pour les éléments et les collections d'éléments, la seule clé acceptée est "color", sous la forme d'une chaîne hexadécimale de six caractères au format RRGGBB. |
name | Chaîne, facultative | Nom du calque. La valeur par défaut est "Calque N". |
shown | Booléen, facultatif | Indicateur indiquant si le calque doit être activé par défaut. |
opacity | Nombre, facultatif | Opacité du calque, représentée par une valeur comprise entre 0 et 1. La valeur par défaut est 1. |
Exemples
Éditeur de code (JavaScript)
// Define a ui.Map widget and add it to the cleared ui.root.
var map = ui.Map();
ui.root.clear();
ui.root.add(map);
map.setCenter(-121.87, 37.44, 9);
// A Sentinel-2 surface reflectance image.
var image = ee.Image('COPERNICUS/S2_SR/20210109T185751_20210109T185931_T10SEG');
// 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');
Sauf indication contraire, le contenu de cette page est régi par une licence Creative Commons Attribution 4.0, et les échantillons de code sont régis par une licence Apache 2.0. Pour en savoir plus, consultez les Règles du site Google Developers. Java est une marque déposée d'Oracle et/ou de ses sociétés affiliées.
Dernière mise à jour le 2025/07/26 (UTC).
[null,null,["Dernière mise à jour le 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 for images and features, controlling aspects like color, opacity, and stretch.\u003c/p\u003e\n"],["\u003cp\u003eThis function accepts Earth Engine objects (Image, Feature, Geometry, Collections) and styling options to control their visual representation.\u003c/p\u003e\n"],["\u003cp\u003eLayers can be named and controlled for initial visibility.\u003c/p\u003e\n"],["\u003cp\u003eThe function returns the added layer as a \u003ccode\u003eui.Map.Layer\u003c/code\u003e object for further manipulation.\u003c/p\u003e\n"]]],[],null,["# ui.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| this: `ui.map` | ui.Map | The ui.Map instance. |\n| `eeObject` | Collection\\|Feature\\|Image\\|MapId | 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 6-character hex string in the RRGGBB format. |\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// Define a ui.Map widget and add it to the cleared ui.root.\nvar map = ui.Map();\nui.root.clear();\nui.root.add(map);\nmap.setCenter(-121.87, 37.44, 9);\n\n// A Sentinel-2 surface reflectance image.\nvar image = ee.Image('COPERNICUS/S2_SR/20210109T185751_20210109T185931_T10SEG');\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```"]]