varForbidden_City=ee.Geometry.MultiPolygon([[[116.39393637477303,39.921260179361866],[116.39350722133065,39.91882457850439],[116.39676878749276,39.918791664386056],[116.39711211024667,39.920963962263336]]],[[[116.39887163936044,39.91810046424626],[116.39595339595223,39.91698136351405],[116.40080282985116,39.91652055201477]]]);varG...
一、Geometry和Feature 首先还是打开jupyter lab ,第三天的课程首先从Geometry开始 代码如下 Map = geemap.Map() point = ee.Geometry.Point([1.5, 1.5])//点 lineString = ee.Geometry.LineString([[-35, -10], [35, -10], [35, 10], [-35, 10]])//线 linearRing = ee.Geometry.LinearRing( [[...
Simplifies the geometry of a feature to within a given error margin. Note that this does not respect the error margin requested by the consumer of this algorithm, unless maxError is explicitly specified to be null. This overrides the default Earth Engine policy for propagating error margins, so...
由于ipygee底层使用的ipyleaflet,而且由于ipygee刚刚开始开发,所以有些内容还不是非常完善。我们目前无法直接对geometry的图形添加自定的样式。但是我们可以对feature修改样式,所以我们可以讲geometry封装为feature,然后在修改样式。 原始的样式: 新的样式: (3)多边形绘制 多边形是我们在开发中最常用的矢量图形,python的AP...
The feature whose geometry is being simplified. maxError (ErrorMargin): The maximum amount of error by which the result may differ from the input. proj (Projection, default: null): If specified, the result will be in this projection. Otherwise it will be in the same projection as the inpu...
A geometry or feature. properties (Object, optional): A dictionary of metadata properties. If the first parameter is a Feature (instead of a geometry), this is unused. Returns: Feature geometry(maxError,proj,geodesics) DEPRECATED: Use Element.geometry() ...
The feature whose geometry is being simplified. maxError (ErrorMargin): The maximum amount of error by which the result may differ from the input. proj (Projection, default: null): If specified, the result will be in this projection. Otherwise it will be in the same projection as the inpu...
本节聚焦于GEE中的矢量信息。几何体（Geometry）可视为“形状”，特征（Feature）则是具备属性的形状，而特征集合（Feature Collection）是一系列Feature的组合。矢量操作主要分为两大类：一类是针对形状的操作，另一类是关于属性的处理。通过本节的学习，你将掌握矢量数据的创建、结构调整、形状...
var kml = ee.Feature(geometry).set('Name', '转换后的 KML 数据'); print('转换后的 KML 数据', kml); ``` 在代码中,需要将“勾选的数据”替换为实际勾选的数据,可以是多边形区域、线条路径或点坐标等。如果勾选的数据不存在,也可以通过代码从 GEE 数据库中获取需要的数据。 3. 运行代码,在控制台...
再转换为Feature。 然后就得到了这个结果(错误的代码就不附了,最后附上正确的): 可以发现基本思路是对的,但是有一个细节问题:格网南北方向的边界都与栅格像元完全一致,但东西方向有一定的重叠。这是因为地理坐标系的0.1°并不时刻等于111132米,这个关系仅在赤道上成立,而随着纬度升高,东西方向的距离实质上会缩减。