AI-generated Key Takeaways
-
The
cutLinesmethod converts LineString, MultiLineString, and LinearRing geometries into a MultiLineString by cutting them into parts based on specified distances along their length. -
Other geometry types are converted to an empty MultiLineString.
-
The method takes arguments for distances to cut, an optional maximum error for reprojection, and an optional projection.
-
The return value is a Geometry object.
| Usage | Returns |
|---|---|
Geometry.
cutLines
(distances, maxError
, proj
)
|
Geometry |
| Argument | Type | Details |
|---|---|---|
|
this:
geometry
|
Geometry | Cuts the lines of this geometry. |
distances
|
List | Distances along each LineString to cut the line into separate pieces, measured in units of the given proj, or meters if proj is unspecified. |
maxError
|
ErrorMargin, default: null | The maximum amount of error tolerated when performing any necessary reprojection. |
proj
|
Projection, default: null | Projection of the result and distance measurements, or EPSG:4326 if unspecified. |
Examples
Code Editor (JavaScript)
// Define a Geometry object. var geometry = ee . Geometry ({ 'type' : 'Polygon' , 'coordinates' : [[[ - 122.081 , 37.417 ], [ - 122.086 , 37.421 ], [ - 122.084 , 37.418 ], [ - 122.089 , 37.416 ]]] }); // Apply the cutLines method to the Geometry object. var geometryCutLines = geometry . cutLines ({ 'distances' : [ 10 , 100 ], 'maxError' : 1 }); // Print the result to the console. print ( 'geometry.cutLines(...) =' , geometryCutLines ); // Display relevant geometries on the map. Map . setCenter ( - 122.085 , 37.422 , 15 ); Map . addLayer ( geometry , { 'color' : 'black' }, 'Geometry [black]: geometry' ); Map . addLayer ( geometryCutLines , { 'color' : 'red' }, 'Result [red]: geometry.cutLines' );
import ee import geemap.core as geemap
Colab (Python)
# Define a Geometry object. geometry = ee . Geometry ({ 'type' : 'Polygon' , 'coordinates' : [[ [ - 122.081 , 37.417 ], [ - 122.086 , 37.421 ], [ - 122.084 , 37.418 ], [ - 122.089 , 37.416 ], ]], }) # Apply the cutLines method to the Geometry object. geometry_cut_lines = geometry . cutLines ( distances = [ 10 , 100 ], maxError = 1 ) # Print the result. display ( 'geometry.cutLines(...) =' , geometry_cut_lines ) # Display relevant geometries on the map. m = geemap . Map () m . set_center ( - 122.085 , 37.422 , 15 ) m . add_layer ( geometry , { 'color' : 'black' }, 'Geometry [black]: geometry' ) m . add_layer ( geometry_cut_lines , { 'color' : 'red' }, 'Result [red]: geometry.cutLines' ) m
