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.
Usage | Returns |
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MultiLineString.convexHull(maxError, proj) | Geometry |
Argument | Type | Details |
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this: geometry | Geometry | Calculates the convex hull of this geometry. |
maxError | ErrorMargin, default: null | The maximum amount of error tolerated when performing any necessary reprojection. |
proj | Projection, default: null | The 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. |
Examples
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); Map.addLayer(multiLineString, {'color': 'black'}, 'Geometry [black]: multiLineString'); Map.addLayer(multiLineStringConvexHull, {'color': 'red'}, 'Result [red]: multiLineString.convexHull');