IMPORTS:
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]]);
CODE:
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(fg_points);
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");
Can someone explain where I am doing it wrong?