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ee.Geometry.LineString.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 | LineString.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 LineString object.
var lineString = ee.Geometry.LineString([[-122.09, 37.42], [-122.08, 37.43]]);
// Apply the cutLines method to the LineString object.
var lineStringCutLines = lineString.cutLines({'distances': [10, 100], 'maxError': 1});
// Print the result to the console.
print('lineString.cutLines(...) =', lineStringCutLines);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(lineString,
{'color': 'black'},
'Geometry [black]: lineString');
Map.addLayer(lineStringCutLines,
{'color': 'red'},
'Result [red]: lineString.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 LineString object.
linestring = ee.Geometry.LineString([[-122.09, 37.42], [-122.08, 37.43]])
# Apply the cutLines method to the LineString object.
linestring_cut_lines = linestring.cutLines(distances=[10, 100], maxError=1)
# Print the result.
display('linestring.cutLines(...) =', linestring_cut_lines)
# Display relevant geometries on the map.
m = geemap.Map()
m.set_center(-122.085, 37.422, 15)
m.add_layer(linestring, {'color': 'black'}, 'Geometry [black]: linestring')
m.add_layer(
linestring_cut_lines, {'color': 'red'}, 'Result [red]: linestring.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 divides LineString, MultiLineString, and LinearRing geometries into smaller segments based on specified distances.\u003c/p\u003e\n"],["\u003cp\u003eSegments are created by cutting the original lines at intervals defined by the \u003ccode\u003edistances\u003c/code\u003e parameter, measured in the projection's units or meters.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003emaxError\u003c/code\u003e parameter controls the acceptable error for reprojection, if necessary.\u003c/p\u003e\n"],["\u003cp\u003eOther geometry types will result in an empty MultiLineString when using this method.\u003c/p\u003e\n"],["\u003cp\u003eThis functionality allows for analyzing and manipulating line-based geometries with greater precision and flexibility.\u003c/p\u003e\n"]]],["The `cutLines` method transforms LineString, MultiLineString, and LinearRing geometries into a MultiLineString by dividing them into segments based on specified distances. The `distances` argument, a list, dictates where cuts occur along the line. The `maxError` parameter defines the tolerated error during reprojection, and `proj` specifies the projection for measurements. Other geometry types become empty MultiLineStrings. The result is a geometry collection of cut line segments.\n"],null,["# ee.Geometry.LineString.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| LineString.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 LineString object.\nvar lineString = ee.Geometry.LineString([[-122.09, 37.42], [-122.08, 37.43]]);\n\n// Apply the cutLines method to the LineString object.\nvar lineStringCutLines = lineString.cutLines({'distances': [10, 100], 'maxError': 1});\n\n// Print the result to the console.\nprint('lineString.cutLines(...) =', lineStringCutLines);\n\n// Display relevant geometries on the map.\nMap.setCenter(-122.085, 37.422, 15);\nMap.addLayer(lineString,\n {'color': 'black'},\n 'Geometry [black]: lineString');\nMap.addLayer(lineStringCutLines,\n {'color': 'red'},\n 'Result [red]: lineString.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 LineString object.\nlinestring = ee.Geometry.LineString([[-122.09, 37.42], [-122.08, 37.43]])\n\n# Apply the cutLines method to the LineString object.\nlinestring_cut_lines = linestring.cutLines(distances=[10, 100], maxError=1)\n\n# Print the result.\ndisplay('linestring.cutLines(...) =', linestring_cut_lines)\n\n# Display relevant geometries on the map.\nm = geemap.Map()\nm.set_center(-122.085, 37.422, 15)\nm.add_layer(linestring, {'color': 'black'}, 'Geometry [black]: linestring')\nm.add_layer(\n linestring_cut_lines, {'color': 'red'}, 'Result [red]: linestring.cutLines'\n)\nm\n```"]]