本演示使用手工定位的点来训练分类器。
每个训练点都有一个叫做 "土地覆盖 "的字段，包含了该位置的分类标签。下面的块包含了这些点的构造代码。 将鼠标悬停在 "城市 "变量上，点击对话框中的 "转换"。

 

var urban = /* color: #ff0000 */ee.FeatureCollection(
        [ee.Feature(
            ee.Geometry.Point([-122.40898132324219, 37.78247386188714]),
            {
              "landcover": 0,
              "system:index": "0"
            }),
        ee.Feature(
            ee.Geometry.Point([-122.40623474121094, 37.77107659627034]),
            {
              "landcover": 0,
              "system:index": "1"
            }),
        ee.Feature(
            ee.Geometry.Point([-122.39799499511719, 37.785187237567705]),
            {
              "landcover": 0,
              "system:index": "2"
            }),
        ee.Feature(
            ee.Geometry.Point([-122.39936828613281, 37.772162125840445]),