ee.Number.toLong

入力値を符号付き 64 ビット整数にキャストします。

用途戻り値
Number.toLong()数値
引数タイプ詳細
これ: input数値入力値。

例

コードエディタ（JavaScript）

// Declare an ee.Number.
var number = ee.Number(100);
print('ee.Number:', number);

// Cast a number to signed 64-bit integer.
var longNumber = number.toLong();
print('ee.Number cast to long:', longNumber);


/**
* Casting numbers to long that are outside of its range and precision can
* modify the resulting value, note the behavior of the following scenarios.
*/

// A floating point number cast to long loses decimal precision.
var float = ee.Number(1.7);
print('Floating point value:', float);

var floatToLong = float.toLong();
print('Floating point value cast to long:', floatToLong);

Python の設定

Python API とインタラクティブな開発での geemap の使用については、 Python 環境のページをご覧ください。

import ee
import geemap.core as geemap

Colab（Python）

# Declare an ee.Number.
number = ee.Number(100)
display('ee.Number:', number)

# Cast a number to signed 64-bit integer.
long_number = number.toLong()
display('ee.Number cast to long:', long_number)


"""Casting numbers to long that are outside of its range and precision can
modify the resulting value, note the behavior of the following scenarios.
"""

# A floating point number cast to long loses decimal precision.
float_number = ee.Number(1.7)
display('Floating point value:', float_number)

float_to_long = float_number.toLong()
display('Floating point value cast to long:', float_to_long)