Method: projects.locations.maps.create

  • The maps.create method generates a map ID used with GetTile to display computation results as map tiles.

  • This process involves providing an expression and output options to maps.create, resulting in a map ID representing an image.

  • The most common application is visualizing computation output in a map viewport, requiring specific output band and value range requirements for image formats like JPEG or PNG.

  • The HTTP request for this method uses a POST request to https://earthengine.googleapis.com/v1/{parent=projects/*/locations/*}/maps.

Creates an ID that can be used to render map tiles showing the results of a computation. The resulting ID should be used as part of GetTile requests.

This is used in conjunction with GetTile. A call to maps.create provides an expression and some output options. The result of maps.create is a map ID that represents an image that is the result of evaluating that expression and applying those options. Subsequently, calls to GetTile can be made to get image data for a tile of the resulting image, at any desired location and zoom. The map ID will be valid for a moderate period (a few hours).

The most common use case for this pair of endpoints is to populate a map viewport with a visualization of the output of some computation. In order for that to be possible, the computation output has to meet some reasonable requirements for the requested image format. In particular, JPEG or PNG format requires that there be one or three output bands, and clips values that are outside the 0-255 range.

HTTP request

POST https://earthengine.googleapis.com/v1/{parent=projects/*/locations/*}/maps

The URL uses gRPC Transcoding syntax.

Path parameters

Parameters
parent

string

Required. The parent of the map collection (e.g., "projects/*").

Authorization requires the following IAM permission on the specified resource parent:

  • earthengine.maps.create

Query parameters

Parameters
workloadTag

string

User supplied tag to track this computation.

Request body

The request body contains an instance of EarthEngineMap.

Response body

If successful, the response body contains a newly created instance of EarthEngineMap.

Authorization scopes

Requires one of the following OAuth scopes:

  • https://www.googleapis.com/auth/earthengine
  • https://www.googleapis.com/auth/earthengine.readonly
  • https://www.googleapis.com/auth/cloud-platform
  • https://www.googleapis.com/auth/cloud-platform.read-only

For more information, see the OAuth 2.0 Overview.