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ee.Geometry.MultiLineString.isUnbounded
使用集合让一切井井有条
根据您的偏好保存内容并对其进行分类。
返回几何图形是否无界。
| 用法 | 返回 |
|---|
MultiLineString.isUnbounded() | 布尔值 |
示例
代码编辑器 (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 isUnbounded method to the MultiLineString object.
var multiLineStringIsUnbounded = multiLineString.isUnbounded();
// Print the result to the console.
print('multiLineString.isUnbounded(...) =', multiLineStringIsUnbounded);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(multiLineString,
{'color': 'black'},
'Geometry [black]: multiLineString');
Python 设置
如需了解 Python API 和如何使用 geemap 进行交互式开发，请参阅
Python 环境页面。
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 isUnbounded method to the MultiLineString object.
multilinestring_is_unbounded = multilinestring.isUnbounded()
# Print the result.
display('multilinestring.isUnbounded(...) =', multilinestring_is_unbounded)
# 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
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最后更新时间 (UTC)：2025-07-26。
[null,null,["最后更新时间 (UTC)：2025-07-26。"],[[["\u003cp\u003eThe \u003ccode\u003eisUnbounded()\u003c/code\u003e method determines if a given geometry is unbounded, returning true if it is and false otherwise.\u003c/p\u003e\n"],["\u003cp\u003eIt is specifically used with MultiLineString geometries in this context.\u003c/p\u003e\n"],["\u003cp\u003eThe method takes a Geometry object as input and returns a Boolean value.\u003c/p\u003e\n"],["\u003cp\u003eExamples are provided in JavaScript and Python to illustrate the usage and output of the \u003ccode\u003eisUnbounded()\u003c/code\u003e method.\u003c/p\u003e\n"]]],["The `isUnbounded()` method checks if a geometry is unbounded, returning a Boolean value. Specifically, it is applied to a `MultiLineString` object. The method takes the geometry (`this: geometry`) as input. In the provided examples, a `MultiLineString` is created, and `isUnbounded()` is applied. The result of whether the `MultiLineString` is unbounded or not is then printed. The given geometry is then displayed on the map.\n"],null,["# ee.Geometry.MultiLineString.isUnbounded\n\nReturns whether the geometry is unbounded.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|---------------------------------|---------|\n| MultiLineString.isUnbounded`()` | Boolean |\n\n| Argument | Type | Details |\n|------------------|----------|---------|\n| this: `geometry` | Geometry | |\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 isUnbounded method to the MultiLineString object.\nvar multiLineStringIsUnbounded = multiLineString.isUnbounded();\n\n// Print the result to the console.\nprint('multiLineString.isUnbounded(...) =', multiLineStringIsUnbounded);\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');\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 isUnbounded method to the MultiLineString object.\nmultilinestring_is_unbounded = multilinestring.isUnbounded()\n\n# Print the result.\ndisplay('multilinestring.isUnbounded(...) =', multilinestring_is_unbounded)\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\n```"]]
