ee.Geometry.Rectangle.length
Returns the length of the linear parts of the geometry. Polygonal parts are ignored. The length of multi geometries is the sum of the lengths of their components.
Usage | Returns |
---|
Rectangle.length(maxError, proj) | Float |
Argument | Type | Details |
---|
this: geometry | Geometry | The input geometry. |
maxError | ErrorMargin, default: null | The maximum amount of error tolerated when performing any necessary reprojection. |
proj | Projection, default: null | If specified, the result will be in the units of the coordinate system of this projection. Otherwise it will be in meters. |
Examples
// Define a Rectangle object.
var rectangle = ee.Geometry.Rectangle(-122.09, 37.42, -122.08, 37.43);
// Apply the length method to the Rectangle object.
var rectangleLength = rectangle.length();
// Print the result to the console.
print('rectangle.length(...) =', rectangleLength);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(rectangle,
{'color': 'black'},
'Geometry [black]: rectangle');
Python setup
See the
Python Environment page for information on the Python API and using
geemap
for interactive development.
import ee
import geemap.core as geemap
# Define a Rectangle object.
rectangle = ee.Geometry.Rectangle(-122.09, 37.42, -122.08, 37.43)
# Apply the length method to the Rectangle object.
rectangle_length = rectangle.length()
# Print the result.
display('rectangle.length(...) =', rectangle_length)
# Display relevant geometries on the map.
m = geemap.Map()
m.set_center(-122.085, 37.422, 15)
m.add_layer(rectangle, {'color': 'black'}, 'Geometry [black]: rectangle')
m
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Last updated 2023-10-06 UTC.
[null,null,["Last updated 2023-10-06 UTC."],[[["This function calculates the total length of the linear segments within a geometry, excluding any polygonal areas."],["It can be used on various geometry types, including rectangles and more complex shapes."],["The result is the sum of lengths of individual components if a multi-geometry is provided."],["Length is calculated in meters by default, unless an alternative projection is provided."],["An optional error margin can be set for calculations involving reprojection."]]],["The `length` method calculates the length of linear parts in a geometry, ignoring polygonal sections. For multi-geometries, it sums the lengths of the individual components. The method accepts `maxError` and `proj` as optional arguments to control reprojection and units. The return value is a float representing the length. Examples in JavaScript and Python show how to compute and display the length of a rectangle using the `length()` method.\n"]]