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Returns the convex hull of the given geometry. The convex hull of a single point is the point itself, the convex hull of collinear points is a line, and the convex hull of everything else is a polygon. Note that a degenerate polygon with all vertices on the same line will result in a line segment.

MultiLineString.convexHull(maxError, proj)Geometry
this: geometryGeometryCalculates the convex hull of this geometry.
maxErrorErrorMargin, default: nullThe maximum amount of error tolerated when performing any necessary reprojection.
projProjection, default: nullThe projection in which to perform the operation. If not specified, the operation will be performed in a spherical coordinate system, and linear distances will be in meters on the sphere.


Code Editor (JavaScript)

// Define a MultiLineString object.
var multiLineString = ee.Geometry.MultiLineString(
   [[[-122.088, 37.418], [-122.086, 37.422], [-122.082, 37.418]],
    [[-122.087, 37.416], [-122.083, 37.416], [-122.082, 37.419]]]);

// Apply the convexHull method to the MultiLineString object.
var multiLineStringConvexHull = multiLineString.convexHull({'maxError': 1});

// Print the result to the console.
print('multiLineString.convexHull(...) =', multiLineStringConvexHull);

// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
             {'color': 'black'},
             'Geometry [black]: multiLineString');
             {'color': 'red'},
             'Result [red]: multiLineString.convexHull');