ee.Array.slice
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Erstellt ein Unterarray, indem jede Position entlang der angegebenen Achse vom „start“ (einschließlich) bis zum „end“ (ausschließlich) in Schritten von „step“ herausgeschnitten wird. Das Ergebnis hat so viele Dimensionen wie die Eingabe und in allen Richtungen dieselbe Länge, mit Ausnahme der Achse für das Slicing. Dort entspricht die Länge der Anzahl der Positionen von „start“ bis „end“ mit dem Schritt „step“, die innerhalb der Länge des Eingabearrays entlang der „axis“ liegen. Das bedeutet, dass das Ergebnis entlang der angegebenen Achse die Länge 0 haben kann, wenn „start“ = „end“ ist oder wenn die Start- oder Endwerte vollständig außerhalb des Bereichs liegen.
Nutzung | Ausgabe |
---|
Array.slice(axis, start, end, step) | Array |
Argument | Typ | Details |
---|
So gehts: array | Array | Array, das in Scheiben geschnitten werden soll. |
axis | Ganzzahl, Standardwert: 0 | Die Achse, die aufgeteilt werden soll. |
start | Ganzzahl, Standardwert: 0 | Die Koordinate des ersten Slice (einschließlich) entlang der Achse. Negative Zahlen werden verwendet, um den Beginn des Slicings relativ zum Ende des Arrays zu positionieren. Dabei beginnt -1 an der letzten Position auf der Achse, -2 an der vorletzten Position usw. |
end | Ganzzahl, Standard: null | Die Koordinate (exklusiv), an der das Erstellen von Slices beendet werden soll. Standardmäßig ist dies die Länge der angegebenen Achse. Negative Zahlen werden verwendet, um das Ende des Ausschnitts relativ zum Ende des Arrays zu positionieren. Dabei wird mit -1 die letzte Position ausgeschlossen, mit -2 die letzten beiden Positionen usw. |
step | Ganzzahl, Standard: 1 | Der Abstand zwischen den Slices entlang der Achse. Ein Slice wird an jedem ganzzahligen Vielfachen von „step“ von „start“ (einschließlich) bis „end“ (ausschließlich) erstellt. Muss positiv sein. |
Beispiele
Code-Editor (JavaScript)
var array1x6 = ee.Array([1, 2, 3, 4, 5, 6]);
print(array1x6.slice()); // [1,2,3,4,5,6]
print(array1x6.slice(0)); // [1,2,3,4,5,6]
print(array1x6.slice(0, 0, 6, 1)); // [1,2,3,4,5,6]
print(array1x6.slice(0, 0, 10, 1)); // [1,2,3,4,5,6]
print(array1x6.slice(0, 2)); // [3,4,5,6]
print(array1x6.slice(0, 5)); // [6]
print(array1x6.slice(0, 6)); // []
print(array1x6.slice(0, 0, 2)); // [1,2]
print(array1x6.slice(0, 0, 0)); // []
// Negative start and end.
print(array1x6.slice(0, 0, -3)); // [1,2,3]
print(array1x6.slice(0, -2, 6)); // [5,6]
print(array1x6.slice(0, 0, 6, 2)); // [1,3,5]
print(array1x6.slice(0, 0, 6, 3)); // [1,4]
print(array1x6.slice(0, 0, 6, 4)); // [1,5]
print(array1x6.slice(0, 0, 6, 6)); // [1]
print(array1x6.slice(0, 2, 6, 2)); // [3,5]
var array3x2 = ee.Array([[1, 2], [3, 4], [5, 6]]);
print(array3x2.slice()); // [[1,2],[3,4],[5,6]]
print(array3x2.slice(0)); // [[1,2],[3,4],[5,6]]
print(array3x2.slice(0, 0)); // [[1,2],[3,4],[5,6]]
print(array3x2.slice(0, 0, 1)); // [[1,2]]
print(array3x2.slice(0, 0, 2)); // [[1,2],[3,4]]
print(array3x2.slice(0, 0, 3, 1)); // [[1,2],[3,4],[5,6]]
print(array3x2.slice(0, 0, 3, 2)); // [[1,2],[5,6]]
print(array3x2.slice(0, 1, 3, 2)); // [[3,4]]
print(array3x2.slice(0, 0, 3, 3)); // [[1,2]]
print(array3x2.slice(1)); // [[1,2],[3,4],[5,6]]
print(array3x2.slice(1, 1)); // [[2],[4],[6]]
print(array3x2.slice(1, 0, 1)); // [[1],[3],[5]]
var empty = ee.Array([], ee.PixelType.int8());
print(empty.slice()); // []
print(empty.slice(0)); // []
print(empty.slice(0, 0, 0, 1)); // []
Python einrichten
Informationen zur Python API und zur Verwendung von geemap
für die interaktive Entwicklung finden Sie auf der Seite
Python-Umgebung.
import ee
import geemap.core as geemap
Colab (Python)
array1x6 = ee.Array([1, 2, 3, 4, 5, 6])
display(array1x6.slice()) # [1, 2, 3, 4, 5, 6]
display(array1x6.slice(0)) # [1, 2, 3, 4, 5, 6]
display(array1x6.slice(0, 0, 6, 1)) # [1, 2, 3, 4, 5, 6]
display(array1x6.slice(0, 0, 10, 1)) # [1, 2, 3, 4, 5, 6]
display(array1x6.slice(0, 2)) # [3, 4, 5, 6]
display(array1x6.slice(0, 5)) # [6]
display(array1x6.slice(0, 6)) # []
display(array1x6.slice(0, 0, 2)) # [1, 2]
display(array1x6.slice(0, 0, 0)) # []
# Negative start and end.
display(array1x6.slice(0, 0, -3)) # [1, 2, 3]
display(array1x6.slice(0, -2, 6)) # [5, 6]
display(array1x6.slice(0, 0, 6, 2)) # [1, 3, 5]
display(array1x6.slice(0, 0, 6, 3)) # [1, 4]
display(array1x6.slice(0, 0, 6, 4)) # [1, 5]
display(array1x6.slice(0, 0, 6, 6)) # [1]
display(array1x6.slice(0, 2, 6, 2)) # [3, 5]
array3x2 = ee.Array([[1, 2], [3, 4], [5, 6]])
display(array3x2.slice()) # [[1, 2], [3, 4], [5, 6]]
display(array3x2.slice(0)) # [[1, 2], [3, 4], [5, 6]]
display(array3x2.slice(0, 0)) # [[1, 2],[3, 4],[5, 6]]
display(array3x2.slice(0, 0, 1)) # [[1, 2]]
display(array3x2.slice(0, 0, 2)) # [[1, 2], [3, 4]]
display(array3x2.slice(0, 0, 3, 1)) # [[1, 2], [3, 4], [5, 6]]
display(array3x2.slice(0, 0, 3, 2)) # [[1, 2], [5, 6]]
display(array3x2.slice(0, 1, 3, 2)) # [[3, 4]]
display(array3x2.slice(0, 0, 3, 3)) # [[1, 2]]
display(array3x2.slice(1)) # [[1, 2], [3, 4], [5, 6]]
display(array3x2.slice(1, 1)) # [[2], [4], [6]]
display(array3x2.slice(1, 0, 1)) # [[1], [3], [5]]
empty = ee.Array([], ee.PixelType.int8())
display(empty.slice()) # []
display(empty.slice(0)) # []
display(empty.slice(0, 0, 0, 1)) # []
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Zuletzt aktualisiert: 2025-07-26 (UTC).
[null,null,["Zuletzt aktualisiert: 2025-07-26 (UTC)."],[[["\u003cp\u003e\u003ccode\u003eArray.slice()\u003c/code\u003e extracts a subarray from an input array along a specified axis, similar to slicing in Python.\u003c/p\u003e\n"],["\u003cp\u003eIt uses \u003ccode\u003estart\u003c/code\u003e, \u003ccode\u003eend\u003c/code\u003e, and \u003ccode\u003estep\u003c/code\u003e parameters to define the portion of the array to extract, with negative indices referencing from the end.\u003c/p\u003e\n"],["\u003cp\u003eThe resulting subarray retains the original dimensions except along the sliced axis, where its length depends on the slice parameters.\u003c/p\u003e\n"],["\u003cp\u003eIf the slice parameters result in no elements being selected, an empty array is returned.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eArray.slice()\u003c/code\u003e can be used on multi-dimensional arrays by specifying the axis to slice along.\u003c/p\u003e\n"]]],[],null,["# ee.Array.slice\n\nCreates a subarray by slicing out each position along the given axis from the 'start' (inclusive) to 'end' (exclusive) by increments of 'step'. The result will have as many dimensions as the input, and the same length in all directions except the slicing axis, where the length will be the number of positions from 'start' to 'end' by 'step' that are in range of the input array's length along 'axis'. This means the result can be length 0 along the given axis if start=end, or if the start or end values are entirely out of range.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|----------------------------------------------------------|---------|\n| Array.slice`(`*axis* `, `*start* `, `*end* `, `*step*`)` | Array |\n\n| Argument | Type | Details |\n|---------------|------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| this: `array` | Array | Array to slice. |\n| `axis` | Integer, default: 0 | The axis to slice on. |\n| `start` | Integer, default: 0 | The coordinate of the first slice (inclusive) along 'axis'. Negative numbers are used to position the start of slicing relative to the end of the array, where -1 starts at the last position on the axis, -2 starts at the next to last position, etc. |\n| `end` | Integer, default: null | The coordinate (exclusive) at which to stop taking slices. By default this will be the length of the given axis. Negative numbers are used to position the end of slicing relative to the end of the array, where -1 will exclude the last position, -2 will exclude the last two positions, etc. |\n| `step` | Integer, default: 1 | The separation between slices along 'axis'; a slice will be taken at each whole multiple of 'step' from 'start' (inclusive) to 'end' (exclusive). Must be positive. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\nvar array1x6 = ee.Array([1, 2, 3, 4, 5, 6]);\nprint(array1x6.slice()); // [1,2,3,4,5,6]\nprint(array1x6.slice(0)); // [1,2,3,4,5,6]\nprint(array1x6.slice(0, 0, 6, 1)); // [1,2,3,4,5,6]\nprint(array1x6.slice(0, 0, 10, 1)); // [1,2,3,4,5,6]\n\nprint(array1x6.slice(0, 2)); // [3,4,5,6]\nprint(array1x6.slice(0, 5)); // [6]\nprint(array1x6.slice(0, 6)); // []\nprint(array1x6.slice(0, 0, 2)); // [1,2]\nprint(array1x6.slice(0, 0, 0)); // []\n\n// Negative start and end.\nprint(array1x6.slice(0, 0, -3)); // [1,2,3]\nprint(array1x6.slice(0, -2, 6)); // [5,6]\n\nprint(array1x6.slice(0, 0, 6, 2)); // [1,3,5]\nprint(array1x6.slice(0, 0, 6, 3)); // [1,4]\nprint(array1x6.slice(0, 0, 6, 4)); // [1,5]\nprint(array1x6.slice(0, 0, 6, 6)); // [1]\n\nprint(array1x6.slice(0, 2, 6, 2)); // [3,5]\n\nvar array3x2 = ee.Array([[1, 2], [3, 4], [5, 6]]);\nprint(array3x2.slice()); // [[1,2],[3,4],[5,6]]\nprint(array3x2.slice(0)); // [[1,2],[3,4],[5,6]]\nprint(array3x2.slice(0, 0)); // [[1,2],[3,4],[5,6]]\nprint(array3x2.slice(0, 0, 1)); // [[1,2]]\nprint(array3x2.slice(0, 0, 2)); // [[1,2],[3,4]]\nprint(array3x2.slice(0, 0, 3, 1)); // [[1,2],[3,4],[5,6]]\nprint(array3x2.slice(0, 0, 3, 2)); // [[1,2],[5,6]]\nprint(array3x2.slice(0, 1, 3, 2)); // [[3,4]]\nprint(array3x2.slice(0, 0, 3, 3)); // [[1,2]]\n\nprint(array3x2.slice(1)); // [[1,2],[3,4],[5,6]]\nprint(array3x2.slice(1, 1)); // [[2],[4],[6]]\nprint(array3x2.slice(1, 0, 1)); // [[1],[3],[5]]\n\nvar empty = ee.Array([], ee.PixelType.int8());\nprint(empty.slice()); // []\nprint(empty.slice(0)); // []\nprint(empty.slice(0, 0, 0, 1)); // []\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\narray1x6 = ee.Array([1, 2, 3, 4, 5, 6])\ndisplay(array1x6.slice()) # [1, 2, 3, 4, 5, 6]\ndisplay(array1x6.slice(0)) # [1, 2, 3, 4, 5, 6]\ndisplay(array1x6.slice(0, 0, 6, 1)) # [1, 2, 3, 4, 5, 6]\ndisplay(array1x6.slice(0, 0, 10, 1)) # [1, 2, 3, 4, 5, 6]\n\ndisplay(array1x6.slice(0, 2)) # [3, 4, 5, 6]\ndisplay(array1x6.slice(0, 5)) # [6]\ndisplay(array1x6.slice(0, 6)) # []\ndisplay(array1x6.slice(0, 0, 2)) # [1, 2]\ndisplay(array1x6.slice(0, 0, 0)) # []\n\n# Negative start and end.\ndisplay(array1x6.slice(0, 0, -3)) # [1, 2, 3]\ndisplay(array1x6.slice(0, -2, 6)) # [5, 6]\n\ndisplay(array1x6.slice(0, 0, 6, 2)) # [1, 3, 5]\ndisplay(array1x6.slice(0, 0, 6, 3)) # [1, 4]\ndisplay(array1x6.slice(0, 0, 6, 4)) # [1, 5]\ndisplay(array1x6.slice(0, 0, 6, 6)) # [1]\n\ndisplay(array1x6.slice(0, 2, 6, 2)) # [3, 5]\n\narray3x2 = ee.Array([[1, 2], [3, 4], [5, 6]])\ndisplay(array3x2.slice()) # [[1, 2], [3, 4], [5, 6]]\ndisplay(array3x2.slice(0)) # [[1, 2], [3, 4], [5, 6]]\ndisplay(array3x2.slice(0, 0)) # [[1, 2],[3, 4],[5, 6]]\ndisplay(array3x2.slice(0, 0, 1)) # [[1, 2]]\ndisplay(array3x2.slice(0, 0, 2)) # [[1, 2], [3, 4]]\ndisplay(array3x2.slice(0, 0, 3, 1)) # [[1, 2], [3, 4], [5, 6]]\ndisplay(array3x2.slice(0, 0, 3, 2)) # [[1, 2], [5, 6]]\ndisplay(array3x2.slice(0, 1, 3, 2)) # [[3, 4]]\ndisplay(array3x2.slice(0, 0, 3, 3)) # [[1, 2]]\n\ndisplay(array3x2.slice(1)) # [[1, 2], [3, 4], [5, 6]]\ndisplay(array3x2.slice(1, 1)) # [[2], [4], [6]]\ndisplay(array3x2.slice(1, 0, 1)) # [[1], [3], [5]]\n\nempty = ee.Array([], ee.PixelType.int8())\ndisplay(empty.slice()) # []\ndisplay(empty.slice(0)) # []\ndisplay(empty.slice(0, 0, 0, 1)) # []\n```"]]