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2022-07-30 21:09:00 【此星光明】
使用 MultiPolygon 输入几何时覆盖网格的奇怪行为。似乎输出 FeatureCollection 没有返回所有矩形,而只返回 1 个。奇怪的是,函数 Map.addLayer 正确显示了所有矩形,但是我不能使用返回的网格化 FC,因为它只包含 1 个矩形。
代码:
var table = ee.FeatureCollection("FAO/GAUL/2015/level1"),
geometry = /* color: #ffc82d */ee.Geometry.Point([-121.97964122160268, 39.44108808325399]),
geometry2 = /* color: #00ffff */ee.Geometry.Point([-116.65127208097768, 39.65287749046759]),
geometry3 = /* color: #bf04c2 */ee.Geometry.Point([-120.76566668683697, 47.66834147869218]);
var ca = table.filterBounds(geometry)
Map.addLayer(ca)
var geom = ca.first().geometry()
print(geom, 'geometry')
var proj = geom.projection()
print(proj, 'proj')
var covGrid = geom.coveringGrid(proj, 4000)
print(covGrid, 'Covering Grid')
Map.addLayer(covGrid)
var nv = table.filterBounds(geometry2)
Map.addLayer(nv)
var geom = nv.first().ge边栏推荐
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