ee.Geometry.LineString.symmetricDifference

傳回兩個幾何圖形的對稱差。

用量傳回
LineString.symmetricDifference(right, maxError, proj)幾何圖形
引數類型詳細資料
這個：left幾何圖形做為運算左運算元的幾何圖形。
right幾何圖形用做運算右運算元的幾何圖形。
maxErrorErrorMargin，預設值：null執行任何必要重投影時可容許的最大誤差量。
proj投影，預設值：null執行作業的投影。如未指定，系統會以球面座標系統執行作業，而球面上的線性距離會以公尺為單位。

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]]);

// Define other inputs.
var inputGeom = ee.Geometry.BBox(-122.085, 37.415, -122.075, 37.425);

// Apply the symmetricDifference method to the LineString object.
var lineStringSymmetricDifference = lineString.symmetricDifference({'right': inputGeom, 'maxError': 1});

// Print the result to the console.
print('lineString.symmetricDifference(...) =', lineStringSymmetricDifference);

// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(lineString,
             {'color': 'black'},
             'Geometry [black]: lineString');
Map.addLayer(inputGeom,
             {'color': 'blue'},
             'Parameter [blue]: inputGeom');
Map.addLayer(lineStringSymmetricDifference,
             {'color': 'red'},
             'Result [red]: lineString.symmetricDifference');

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]])

# Define other inputs.
input_geom = ee.Geometry.BBox(-122.085, 37.415, -122.075, 37.425)

# Apply the symmetricDifference method to the LineString object.
linestring_symmetric_difference = linestring.symmetricDifference(
    right=input_geom, maxError=1
)

# Print the result.
display(
    'linestring.symmetricDifference(...) =', linestring_symmetric_difference
)

# 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(input_geom, {'color': 'blue'}, 'Parameter [blue]: input_geom')
m.add_layer(
    linestring_symmetric_difference,
    {'color': 'red'},
    'Result [red]: linestring.symmetricDifference',
)
m