ee.Image.cumulativeCost

Computes a cumulative cost map based on an image containing costs to traverse each pixel and an image containing source locations.

Each output band represents the cumulative cost over the corresponding input cost band.

Usage	Returns
Image.cumulativeCost(source, maxDistance, geodeticDistance)	Image

Argument	Type	Details
this: cost	Image	An image representing the cost to traverse each pixel. Masked pixels can't be traversed. When comparing pixel traversal costs, we use band-wise dictionary ordering. Ancillary cost bands are only considered when paths over primary bands are equal cost.
source	Image	A single-band image representing the sources. A pixel value different from 0 defines a source pixel.
maxDistance	Float	Maximum distance for computation, in meters.
geodeticDistance	Boolean, default: true	If true, geodetic distance along the curved surface is used, assuming a spherical Earth of radius 6378137.0. If false, Euclidean distance in the 2D plane of the map projection is used (faster, but less accurate).