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ee.Geometry.MultiLineString.cutLines
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Converts LineString, MultiLineString, and LinearRing geometries into a MultiLineString by cutting them into parts no longer than the given distance along their length. All other geometry types will be converted to an empty MultiLineString.
| Usage | Returns | MultiLineString.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 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 cutLines method to the MultiLineString object.
var multiLineStringCutLines = multiLineString.cutLines({'distances': [10, 100], 'maxError': 1});
// Print the result to the console.
print('multiLineString.cutLines(...) =', multiLineStringCutLines);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(multiLineString,
{'color': 'black'},
'Geometry [black]: multiLineString');
Map.addLayer(multiLineStringCutLines,
{'color': 'red'},
'Result [red]: multiLineString.cutLines');
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
Colab (Python)
# Define a MultiLineString object.
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 cutLines method to the MultiLineString object.
multilinestring_cut_lines = multilinestring.cutLines(
distances=[10, 100], maxError=1
)
# Print the result.
display('multilinestring.cutLines(...) =', multilinestring_cut_lines)
# Display relevant geometries on the map.
m = geemap.Map()
m.set_center(-122.085, 37.422, 15)
m.add_layer(
multilinestring, {'color': 'black'}, 'Geometry [black]: multilinestring'
)
m.add_layer(
multilinestring_cut_lines,
{'color': 'red'},
'Result [red]: multilinestring.cutLines',
)
m
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Last updated 2024-06-05 UTC.
[null,null,["Last updated 2024-06-05 UTC."],[[["\u003cp\u003eThe \u003ccode\u003ecutLines\u003c/code\u003e method converts LineString, MultiLineString, and LinearRing geometries into a MultiLineString by segmenting them into shorter lengths.\u003c/p\u003e\n"],["\u003cp\u003eSegmentation is based on specified distances provided as a list to the \u003ccode\u003edistances\u003c/code\u003e parameter.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003emaxError\u003c/code\u003e parameter controls the tolerance for reprojection errors, while \u003ccode\u003eproj\u003c/code\u003e defines the projection for distance measurements and results.\u003c/p\u003e\n"],["\u003cp\u003eAll geometry types other than LineString, MultiLineString, and LinearRing are converted to an empty MultiLineString when \u003ccode\u003ecutLines\u003c/code\u003e is applied.\u003c/p\u003e\n"]]],["The `cutLines` method converts LineString, MultiLineString, and LinearRing geometries into a MultiLineString by dividing them into segments based on specified distances. It takes a list of `distances` to define cut points, measured in units of the given `proj` or meters by default. It has a `maxError` parameter that sets a tolerance for reprojection error. Other geometry types will return an empty MultiLineString. The outputs are shown with JavaScript and Python code.\n"],null,["# ee.Geometry.MultiLineString.cutLines\n\nConverts LineString, MultiLineString, and LinearRing geometries into a MultiLineString by cutting them into parts no longer than the given distance along their length. All other geometry types will be converted to an empty MultiLineString.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|----------------------------------------------------------------|----------|\n| MultiLineString.cutLines`(distances, `*maxError* `, `*proj*`)` | Geometry |\n\n| Argument | Type | Details |\n|------------------|----------------------------|----------------------------------------------------------------------------------------------------------------------------------------------|\n| this: `geometry` | Geometry | Cuts the lines of this geometry. |\n| `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. |\n| `maxError` | ErrorMargin, default: null | The maximum amount of error tolerated when performing any necessary reprojection. |\n| `proj` | Projection, default: null | Projection of the result and distance measurements, or EPSG:4326 if unspecified. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// Define a MultiLineString object.\nvar multiLineString = ee.Geometry.MultiLineString(\n [[[-122.088, 37.418], [-122.086, 37.422], [-122.082, 37.418]],\n [[-122.087, 37.416], [-122.083, 37.416], [-122.082, 37.419]]]);\n\n// Apply the cutLines method to the MultiLineString object.\nvar multiLineStringCutLines = multiLineString.cutLines({'distances': [10, 100], 'maxError': 1});\n\n// Print the result to the console.\nprint('multiLineString.cutLines(...) =', multiLineStringCutLines);\n\n// Display relevant geometries on the map.\nMap.setCenter(-122.085, 37.422, 15);\nMap.addLayer(multiLineString,\n {'color': 'black'},\n 'Geometry [black]: multiLineString');\nMap.addLayer(multiLineStringCutLines,\n {'color': 'red'},\n 'Result [red]: multiLineString.cutLines');\n```\nPython setup\n\nSee the [Python Environment](/earth-engine/guides/python_install) page for information on the Python API and using\n`geemap` for interactive development. \n\n```python\nimport ee\nimport geemap.core as geemap\n```\n\n### Colab (Python)\n\n```python\n# Define a MultiLineString object.\nmultilinestring = ee.Geometry.MultiLineString([\n [[-122.088, 37.418], [-122.086, 37.422], [-122.082, 37.418]],\n [[-122.087, 37.416], [-122.083, 37.416], [-122.082, 37.419]],\n])\n\n# Apply the cutLines method to the MultiLineString object.\nmultilinestring_cut_lines = multilinestring.cutLines(\n distances=[10, 100], maxError=1\n)\n\n# Print the result.\ndisplay('multilinestring.cutLines(...) =', multilinestring_cut_lines)\n\n# Display relevant geometries on the map.\nm = geemap.Map()\nm.set_center(-122.085, 37.422, 15)\nm.add_layer(\n multilinestring, {'color': 'black'}, 'Geometry [black]: multilinestring'\n)\nm.add_layer(\n multilinestring_cut_lines,\n {'color': 'red'},\n 'Result [red]: multilinestring.cutLines',\n)\nm\n```"]]