ee.PixelType
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Zwraca typ piksela o podanej precyzji i podanych limitach na element oraz opcjonalnej liczbie wymiarów.
| Wykorzystanie | Zwroty |
|---|
ee.PixelType(precision, minValue, maxValue, dimensions) | PixelType |
| Argument | Typ | Szczegóły |
|---|
precision | Obiekt | Dokładność piksela, jedna z wartości „int”, „float” lub „double”. |
minValue | Liczba, domyślnie: null | Minimalna wartość pikseli tego typu. Jeśli precyzja to „float” lub „double”, może to być wartość null, co oznacza nieskończoność ujemną. |
maxValue | Liczba, domyślnie: null | Maksymalna wartość pikseli tego typu. Jeśli precyzja to „float” lub „double”, może to być wartość null, co oznacza nieskończoność dodatnią. |
dimensions | Liczba całkowita, domyślnie: 0 | Liczba wymiarów, w których mogą się różnić piksele tego typu. 0 to skalar, 1 to wektor, 2 to macierz itd. |
Przykłady
Edytor kodu (JavaScript)
print(ee.PixelType('int', 0, 1)); // int ∈ [0, 1]
print(ee.PixelType('int', -20, -10)); // int ∈ [-20, -10]
print(ee.PixelType('float')); // float
print(ee.PixelType('double')); // double
print(ee.PixelType('double', null)); // double
print(ee.PixelType('double', null, null)); // double
print(ee.PixelType('double', null, null, 0)); // double
print(ee.PixelType('double', null, null, 1)); // double, 1 dimensions
print(ee.PixelType('double', null, null, 2)); // double, 2 dimensions
print(ee.PixelType('double', null, null, 3)); // double, 3 dimensions
print(ee.PixelType('double', null, null, 10)); // double, 10 dimensions
print(ee.PixelType('double', null, null, 1e8)); // double, 100000000 dimensions
print(ee.PixelType('double', 1, 2, 0)); // double ∈ [1, 2]
print(ee.PixelType('double', 1, 3, 2)); // double ∈ [1, 3], 2 dimensions
print(ee.PixelType('double', -4, -3, 0)); // double ∈ [-4, -3]
print(ee.PixelType('double', null, 2.3, 0)); // double
print(ee.PixelType('double', 3.4, null, 0)); // double
Konfiguracja Pythona
Informacje o interfejsie Python API i używaniu geemap do interaktywnego programowania znajdziesz na stronie
Środowisko Python.
import ee
import geemap.core as geemap
Colab (Python)
print(ee.PixelType('int', 0, 1).getInfo()) # int ∈ [0, 1]
print(ee.PixelType('int', -20, -10).getInfo()) # int ∈ [-20, -10]
print(ee.PixelType('float').getInfo()) # float
print(ee.PixelType('double').getInfo()) # double
print(ee.PixelType('double', None).getInfo()) # double
print(ee.PixelType('double', None, None).getInfo()) # double
print(ee.PixelType('double', None, None, 0).getInfo()) # double
print(ee.PixelType('double', None, None, 1).getInfo()) # double, 1 dimensions
print(ee.PixelType('double', None, None, 2).getInfo()) # double, 2 dimensions
print(ee.PixelType('double', None, None, 3).getInfo()) # double, 3 dimensions
print(ee.PixelType('double', None, None, 10).getInfo()) # double, 10 dimensions
# double, 100000000 dimensions
print(ee.PixelType('double', None, None, 1e8).getInfo())
print(ee.PixelType('double', 1, 2, 0).getInfo()) # double ∈ [1, 2]
# double ∈ [1, 3], 2 dimensions
print(ee.PixelType('double', 1, 3, 2).getInfo())
print(ee.PixelType('double', -4, -3, 0).getInfo()) # double ∈ [-4, -3]
print(ee.PixelType('double', None, 2.3, 0).getInfo()) # double
print(ee.PixelType('double', 3.4, None, 0).getInfo()) # double
O ile nie stwierdzono inaczej, treść tej strony jest objęta licencją Creative Commons – uznanie autorstwa 4.0, a fragmenty kodu są dostępne na licencji Apache 2.0. Szczegółowe informacje na ten temat zawierają zasady dotyczące witryny Google Developers. Java jest zastrzeżonym znakiem towarowym firmy Oracle i jej podmiotów stowarzyszonych.
Ostatnia aktualizacja: 2025-07-26 UTC.
[null,null,["Ostatnia aktualizacja: 2025-07-26 UTC."],[[["\u003cp\u003e\u003ccode\u003eee.PixelType()\u003c/code\u003e defines the data type and range of values for pixels in an image.\u003c/p\u003e\n"],["\u003cp\u003eYou can specify the precision ('int', 'float', 'double'), minimum and maximum values, and the number of dimensions for the pixel type.\u003c/p\u003e\n"],["\u003cp\u003eIf minimum or maximum values are not specified for 'float' or 'double' precision, they default to negative and positive infinity, respectively.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003edimensions\u003c/code\u003e argument allows you to create scalar, vector, matrix, or higher-dimensional pixel types.\u003c/p\u003e\n"]]],[],null,["# ee.PixelType\n\nReturns a PixelType of the given precision with the given limits per element, and an optional dimensionality.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|-------------------------------------------------------------------------|-----------|\n| `ee.PixelType(precision, `*minValue* `, `*maxValue* `, `*dimensions*`)` | PixelType |\n\n| Argument | Type | Details |\n|--------------|-----------------------|--------------------------------------------------------------------------------------------------------------------------------|\n| `precision` | Object | The pixel precision, one of 'int', 'float', or 'double'. |\n| `minValue` | Number, default: null | The minimum value of pixels of this type. If precision is 'float' or 'double', this can be null, signifying negative infinity. |\n| `maxValue` | Number, default: null | The maximum value of pixels of this type. If precision is 'float' or 'double', this can be null, signifying positive infinity. |\n| `dimensions` | Integer, default: 0 | The number of dimensions in which pixels of this type can vary; 0 is a scalar, 1 is a vector, 2 is a matrix, etc. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\nprint(ee.PixelType('int', 0, 1)); // int ∈ [0, 1]\nprint(ee.PixelType('int', -20, -10)); // int ∈ [-20, -10]\nprint(ee.PixelType('float')); // float\nprint(ee.PixelType('double')); // double\nprint(ee.PixelType('double', null)); // double\nprint(ee.PixelType('double', null, null)); // double\nprint(ee.PixelType('double', null, null, 0)); // double\nprint(ee.PixelType('double', null, null, 1)); // double, 1 dimensions\nprint(ee.PixelType('double', null, null, 2)); // double, 2 dimensions\nprint(ee.PixelType('double', null, null, 3)); // double, 3 dimensions\nprint(ee.PixelType('double', null, null, 10)); // double, 10 dimensions\nprint(ee.PixelType('double', null, null, 1e8)); // double, 100000000 dimensions\n\nprint(ee.PixelType('double', 1, 2, 0)); // double ∈ [1, 2]\nprint(ee.PixelType('double', 1, 3, 2)); // double ∈ [1, 3], 2 dimensions\nprint(ee.PixelType('double', -4, -3, 0)); // double ∈ [-4, -3]\n\nprint(ee.PixelType('double', null, 2.3, 0)); // double\nprint(ee.PixelType('double', 3.4, null, 0)); // double\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\nprint(ee.PixelType('int', 0, 1).getInfo()) # int ∈ [0, 1]\nprint(ee.PixelType('int', -20, -10).getInfo()) # int ∈ [-20, -10]\nprint(ee.PixelType('float').getInfo()) # float\nprint(ee.PixelType('double').getInfo()) # double\nprint(ee.PixelType('double', None).getInfo()) # double\nprint(ee.PixelType('double', None, None).getInfo()) # double\nprint(ee.PixelType('double', None, None, 0).getInfo()) # double\nprint(ee.PixelType('double', None, None, 1).getInfo()) # double, 1 dimensions\nprint(ee.PixelType('double', None, None, 2).getInfo()) # double, 2 dimensions\nprint(ee.PixelType('double', None, None, 3).getInfo()) # double, 3 dimensions\nprint(ee.PixelType('double', None, None, 10).getInfo()) # double, 10 dimensions\n\n# double, 100000000 dimensions\nprint(ee.PixelType('double', None, None, 1e8).getInfo())\n\nprint(ee.PixelType('double', 1, 2, 0).getInfo()) # double ∈ [1, 2]\n\n# double ∈ [1, 3], 2 dimensions\nprint(ee.PixelType('double', 1, 3, 2).getInfo())\nprint(ee.PixelType('double', -4, -3, 0).getInfo()) # double ∈ [-4, -3]\n\nprint(ee.PixelType('double', None, 2.3, 0).getInfo()) # double\nprint(ee.PixelType('double', 3.4, None, 0).getInfo()) # double\n```"]]
