AI-generated Key Takeaways
-
The
length()method returns the length of the linear parts of a geometry, ignoring polygonal parts. -
For multi geometries, the length is the sum of the lengths of their components.
-
The method can take
maxErrorandprojarguments to control reprojection and units of the result. -
The output is a float representing the calculated length.
| 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
Code Editor (JavaScript)
// 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' );
import ee import geemap.core as geemap
Colab (Python)
# 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
