Pengumuman: Semua project nonkomersial yang terdaftar untuk menggunakan Earth Engine sebelum
15 April 2025 harus
memverifikasi kelayakan nonkomersial untuk mempertahankan akses Earth Engine.
ee.Array.slice
Tetap teratur dengan koleksi
Simpan dan kategorikan konten berdasarkan preferensi Anda.
Membuat subarray dengan mengiris setiap posisi di sepanjang sumbu yang diberikan dari 'start' (inklusif) hingga 'end' (eksklusif) dengan kenaikan 'step'. Hasilnya akan memiliki dimensi sebanyak input, dan panjang yang sama di semua arah kecuali sumbu pengirisan, dengan panjangnya adalah jumlah posisi dari 'start' hingga 'end' menurut 'step' yang berada dalam rentang panjang array input di sepanjang 'axis'. Artinya, hasilnya dapat berupa panjang 0 di sepanjang sumbu yang diberikan jika start=end, atau jika nilai start atau end sepenuhnya berada di luar rentang.
Penggunaan | Hasil |
---|
Array.slice(axis, start, end, step) | Array |
Argumen | Jenis | Detail |
---|
ini: array | Array | Array yang akan diiris. |
axis | Bilangan bulat, default: 0 | Sumbu yang akan dipotong. |
start | Bilangan bulat, default: 0 | Koordinat irisan pertama (inklusif) di sepanjang 'axis'. Angka negatif digunakan untuk memosisikan awal pengirisan relatif terhadap akhir array, dengan -1 dimulai pada posisi terakhir pada sumbu, -2 dimulai pada posisi kedua dari terakhir, dll. |
end | Bilangan bulat, default: null | Koordinat (eksklusif) tempat pengambilan slice dihentikan. Secara default, ini akan menjadi panjang sumbu yang diberikan. Angka negatif digunakan untuk memosisikan akhir pengirisan relatif terhadap akhir array, dengan -1 akan mengecualikan posisi terakhir, -2 akan mengecualikan dua posisi terakhir, dll. |
step | Bilangan bulat, default: 1 | Pemisahan antara slice di sepanjang 'axis'; slice akan diambil di setiap kelipatan bilangan bulat 'step' dari 'start' (inklusif) hingga 'end' (eksklusif). Harus positif. |
Contoh
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)); // []
Penyiapan Python
Lihat halaman
Lingkungan Python untuk mengetahui informasi tentang Python API dan penggunaan
geemap
untuk pengembangan interaktif.
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)) # []
Kecuali dinyatakan lain, konten di halaman ini dilisensikan berdasarkan Lisensi Creative Commons Attribution 4.0, sedangkan contoh kode dilisensikan berdasarkan Lisensi Apache 2.0. Untuk mengetahui informasi selengkapnya, lihat Kebijakan Situs Google Developers. Java adalah merek dagang terdaftar dari Oracle dan/atau afiliasinya.
Terakhir diperbarui pada 2025-07-26 UTC.
[null,null,["Terakhir diperbarui pada 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```"]]