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- var geometry = /* color: #98ff00 */ee.Geometry.Polygon(
- [[[73.85016678395664, 14.304113379426035],
- [73.85016583974448, 14.048667693939866],
- [74.0477686190103, 14.155139129529527]]]),
- point1 = /* color: #d63000 */ee.Geometry.Point([73.91532897949219, 14.20980182205916]),
- point2 = /* color: #98ff00 */ee.Geometry.MultiPoint(
- [[73.9105224609375, 14.169860112219006],
- [73.87619018554688, 14.186503346854852],
- [73.87550354003906, 14.233097898500935],
- [73.93730163574219, 14.199817054773131],
- [73.95378112792969, 14.181177644664091],
- [73.88717651367188, 14.155213055929545],
- [73.92906188964844, 14.141230893912757],
- [73.94691467285156, 14.155878851710582],
- [73.97300720214844, 14.161205147702967],
- [73.98399353027344, 14.165865554216062],
- [73.9764404296875, 14.197820048470204]]);
- var image = ee.ImageCollection("LANDSAT/LC8_L1T_TOA").filterBounds(geometry)
- .filterDate('2013-01-01', '2013-04-14');
- var addNDWI = function(image) {
- var ndwi = image.normalizedDifference(['B3', 'B6']).rename('NDWI');
- return image.addBands(ndwi);
- };
- var image1 = image.map(addNDWI);
- var fg_points =
- [ee.Feature(geometry),ee.Feature(point1),ee.Feature(point2)];
- Map.addLayer(ee.Feature(geometry), {}, "geometry");
- Map.addLayer(ee.Feature(point1), {}, "point1");
- Map.addLayer(ee.Feature(point2), {}, "point2");
- var mapfunc = function(feat) {
- var geom = feat.geometry()
- var addProp = function(img, f) {
- var newf = ee.Feature(f)
- var date = img.date().format()
- var value = img.reduceRegion(ee.Reducer.first(), geom, 30).get('NDWI')
- return ee.Feature(ee.Algorithms.If(value,
- newf.set(date, ee.String(value)),
- newf.set(date, ee.String('No data'))))
- }
- var newfeat = ee.Feature(image1.iterate(addProp, feat))
- return newfeat
- };
- var newft = fg_points.map(mapfunc);
- Export.table.toDrive(newft,
- "export_Points",
- "export_Points",
- "export_Points");
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