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.mask
Tetap teratur dengan koleksi
Simpan dan kategorikan konten berdasarkan preferensi Anda.
Membuat subarray dengan memotong setiap posisi dalam array input yang paralel dengan elemen bukan nol dari array mask yang diberikan.
| Penggunaan | Hasil |
|---|
Array.mask(mask) | Array |
| Argumen | Jenis | Detail |
|---|
ini: input | Array | Array yang akan disamarkan. |
mask | Array | Array mask. |
Contoh
Code Editor (JavaScript)
print(ee.Array([1]).mask([0])); // []
print(ee.Array([1]).mask([1])); // [1]
print(ee.Array([0, 1, 2, 3]).mask([0, 4, -1, 1.2])); // [1,2,3]
print(ee.Array([[1, 2, 3, 4]]).mask([[0, 0, 0, 0]])); // [[]]
print(ee.Array([[1, 2, 3, 4]]).mask([[1, 0, 1, 1]])); // [[1,3,4]]
var array = ee.Array([[1], [2], [3], [4]]);
print(array.mask([[0], [0], [0], [0]])); // []
print(array.mask([[1], [0], [1], [1]])); // [[1],[3],[4]]
var empty = ee.Array([], ee.PixelType.int8());
print(empty.mask(empty)); // []
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)
display(ee.Array([1]).mask([0])) # []
display(ee.Array([1]).mask([1])) # [1]
display(ee.Array([0, 1, 2, 3]).mask([0, 4, -1, 1.2])) # [1, 2, 3]
display(ee.Array([[1, 2, 3, 4]]).mask([[0, 0, 0, 0]])) # [[]]
display(ee.Array([[1, 2, 3, 4]]).mask([[1, 0, 1, 1]])) # [[1, 3, 4]]
array = ee.Array([[1], [2], [3], [4]])
display(array.mask([[0], [0], [0], [0]])) # []
display(array.mask([[1], [0], [1], [1]])) # [[1], [3], [4]]
empty = ee.Array([], ee.PixelType.int8())
display(empty.mask(empty)) # []
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.mask()\u003c/code\u003e creates a new array by selecting elements from the input array where corresponding elements in the mask array are non-zero.\u003c/p\u003e\n"],["\u003cp\u003eThe input and mask arrays must have the same dimensions.\u003c/p\u003e\n"],["\u003cp\u003eZero values in the mask array effectively "hide" corresponding elements in the input array, resulting in their exclusion from the output.\u003c/p\u003e\n"],["\u003cp\u003eThis function is useful for filtering or selectively extracting data from arrays based on a criteria represented by the mask.\u003c/p\u003e\n"]]],[],null,["# ee.Array.mask\n\nCreates a subarray by slicing out each position in an input array that is parallel to a non-zero element of the given mask array.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|--------------------|---------|\n| Array.mask`(mask)` | Array |\n\n| Argument | Type | Details |\n|---------------|-------|----------------|\n| this: `input` | Array | Array to mask. |\n| `mask` | Array | Mask array. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\nprint(ee.Array([1]).mask([0])); // []\nprint(ee.Array([1]).mask([1])); // [1]\n\nprint(ee.Array([0, 1, 2, 3]).mask([0, 4, -1, 1.2])); // [1,2,3]\n\nprint(ee.Array([[1, 2, 3, 4]]).mask([[0, 0, 0, 0]])); // [[]]\nprint(ee.Array([[1, 2, 3, 4]]).mask([[1, 0, 1, 1]])); // [[1,3,4]]\n\nvar array = ee.Array([[1], [2], [3], [4]]);\nprint(array.mask([[0], [0], [0], [0]])); // []\nprint(array.mask([[1], [0], [1], [1]])); // [[1],[3],[4]]\n\nvar empty = ee.Array([], ee.PixelType.int8());\nprint(empty.mask(empty)); // []\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\ndisplay(ee.Array([1]).mask([0])) # []\ndisplay(ee.Array([1]).mask([1])) # [1]\n\ndisplay(ee.Array([0, 1, 2, 3]).mask([0, 4, -1, 1.2])) # [1, 2, 3]\n\ndisplay(ee.Array([[1, 2, 3, 4]]).mask([[0, 0, 0, 0]])) # [[]]\ndisplay(ee.Array([[1, 2, 3, 4]]).mask([[1, 0, 1, 1]])) # [[1, 3, 4]]\n\narray = ee.Array([[1], [2], [3], [4]])\ndisplay(array.mask([[0], [0], [0], [0]])) # []\ndisplay(array.mask([[1], [0], [1], [1]])) # [[1], [3], [4]]\n\nempty = ee.Array([], ee.PixelType.int8())\ndisplay(empty.mask(empty)) # []\n```"]]
