1

I'm new to Python. I'm trying to sample raster values to points based on the geometries of a shapefile using the below code but I'm receiving the below error .

import fiona
import rasterio as rio
import pandas as pd

 multi_values_points = pd.Series()
 with fiona.open(inputShape) as shp:
     for feature in shp:
        Name = feature['properties']['Name']
        coords = feature['geometry']['coordinates']
        with rio.open(inputRaster) as stack_src:
           value = [v for v in stack_src.sample([coords])]
        multi_values_points.loc[Name] = value
 
 **ValueError: not enough values to unpack (expected 2, got 1)**
5
  • Hey, welcome to GIS SE. What line of your code is yielding your error? Furthermore, how many bands does your raster have? Aug 8 '20 at 20:06
  • The error has occured at value = [v for v in stack_src.sample([coords])] , my raster has 7 bands Aug 9 '20 at 6:59
  • Can you share a small portion of your data to do some tests? Aug 9 '20 at 14:10
  • can CRS of my shapefile cause this issue? I'm using WGS84 reference system Aug 10 '20 at 6:20
  • Do the points and the raster have the same CRS? If they do, it should not matter what the CRS is. Aug 10 '20 at 13:29
0

I have figured out that coodinates of my raster data are in 3-Dimension and hence converted them to 2D as I no longer needed my z coordinate.

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