ee.Kernel.euclidean

基于欧几里得（直线）距离生成距离核。

用法返回
ee.Kernel.euclidean(radius, units, normalize, magnitude)内核
参数类型详细信息
radius浮点数要生成的内核的半径。
units字符串，默认值：“pixels”内核的测量系统（“像素”或“米”）。如果以米为单位指定了内核，则当缩放级别发生变化时，内核会调整大小。
normalize布尔值，默认值：false将内核值归一化为总和为 1。
magnitude浮点数，默认值：1按此量缩放每个值。

示例

代码编辑器 (JavaScript)

print('A Euclidean distance kernel', ee.Kernel.euclidean({radius: 3}));

/**
 * Output weights matrix (up to 1/1000 precision for brevity)
 *
 * [4.242, 3.605, 3.162, 3.000, 3.162, 3.605, 4.242]
 * [3.605, 2.828, 2.236, 2.000, 2.236, 2.828, 3.605]
 * [3.162, 2.236, 1.414, 1.000, 1.414, 2.236, 3.162]
 * [3.000, 2.000, 1.000, 0.000, 1.000, 2.000, 3.000]
 * [3.162, 2.236, 1.414, 1.000, 1.414, 2.236, 3.162]
 * [3.605, 2.828, 2.236, 2.000, 2.236, 2.828, 3.605]
 * [4.242, 3.605, 3.162, 3.000, 3.162, 3.605, 4.242]
 */

Python 设置

如需了解 Python API 和如何使用 geemap 进行交互式开发，请参阅 Python 环境页面。

import ee
import geemap.core as geemap

Colab (Python)

from pprint import pprint

print('A Euclidean distance kernel:')
pprint(ee.Kernel.euclidean(**{'radius': 3}).getInfo())

#  Output weights matrix (up to 1/1000 precision for brevity)

#  [4.242, 3.605, 3.162, 3.000, 3.162, 3.605, 4.242]
#  [3.605, 2.828, 2.236, 2.000, 2.236, 2.828, 3.605]
#  [3.162, 2.236, 1.414, 1.000, 1.414, 2.236, 3.162]
#  [3.000, 2.000, 1.000, 0.000, 1.000, 2.000, 3.000]
#  [3.162, 2.236, 1.414, 1.000, 1.414, 2.236, 3.162]
#  [3.605, 2.828, 2.236, 2.000, 2.236, 2.828, 3.605]
#  [4.242, 3.605, 3.162, 3.000, 3.162, 3.605, 4.242]