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2025 年 4 月 15 日前註冊使用 Earth Engine 的非商業專案,都必須
驗證非商業用途資格,才能繼續存取。如未在 2025 年 9 月 26 日前完成驗證,存取權可能會暫停。
ee.Geometry.LineString.isUnbounded
透過集合功能整理內容
你可以依據偏好儲存及分類內容。
傳回幾何是否無界。
| 用量 | 傳回 |
|---|
LineString.isUnbounded() | 布林值 |
範例
程式碼編輯器 (JavaScript)
// Define a LineString object.
var lineString = ee.Geometry.LineString([[-122.09, 37.42], [-122.08, 37.43]]);
// Apply the isUnbounded method to the LineString object.
var lineStringIsUnbounded = lineString.isUnbounded();
// Print the result to the console.
print('lineString.isUnbounded(...) =', lineStringIsUnbounded);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(lineString,
{'color': 'black'},
'Geometry [black]: lineString');
Python 設定
請參閱
Python 環境頁面,瞭解 Python API 和如何使用 geemap 進行互動式開發。
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 isUnbounded method to the LineString object.
linestring_is_unbounded = linestring.isUnbounded()
# Print the result.
display('linestring.isUnbounded(...) =', linestring_is_unbounded)
# 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
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上次更新時間:2025-07-26 (世界標準時間)。
[null,null,["上次更新時間:2025-07-26 (世界標準時間)。"],[],["The `isUnbounded()` method checks if a geometry is unbounded, returning a Boolean value. This method is used with a `LineString` geometry object. In JavaScript and Python examples, a `LineString` is defined and the `isUnbounded()` method is applied to it. The result (Boolean) is then printed, and the geometry is displayed on a map. The `isUnbounded()` function does not have any argument other than the geometry object itself.\n"]]