Announcement: All noncommercial projects registered to use Earth Engine before April 15, 2025 must verify noncommercial eligibility to maintain access. If you have not verified by September 26, 2025, your access may be on hold.
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.
name
String, optional
The name of the layer. Defaults to "Layer N".
shown
Boolean, optional
A flag indicating whether the layer should be on by default.
opacity
Number, optional
The layer's opacity represented as a number between 0 and 1. Defaults to 1.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2023-10-06 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,[]]