Example #1
0
def getRasterProj4(raster):
    print("Getting projection information for %s" % raster)
    """ Function returns the projection of the input raster in proj4"""
    fac = gdal.Open(raster)

    ras_proj = fac.GetProjection()
    spatialRef = osr.SpatialReference()

    osr.UseExceptions()
    # Apparently osr has difficulties identifying albers projections
    prjText = ras_proj.replace('"Albers"', '"Albers_Conic_Equal_Area"')
    spatialRef.ImportFromWkt(prjText)
    ras_proj_proj4 = spatialRef.ExportToProj4()
    return ras_proj_proj4
Example #2
0
@author: %(Faizan Anwar, IWS Uni-Stuttgart)s
"""
from __future__ import unicode_literals
import time
import timeit
import os
from multiprocessing import Process, Queue

import ogr
import osr
import numpy as np
import pandas as pd
import netCDF4 as nc

ogr.UseExceptions()
osr.UseExceptions()


def extract_grid_ppt(sub_date_list, in_net_cdf, in_cat_shp,
                     sub_out_cat_data_df, other_args, ppt_que):
    '''
    Extract precipitation from a given list of netCDf files
        The catchments shapefile can have one more catchment polygons.
        Change names of variables and values inside the function,
        (not everything is specified through the arguments).
    '''
    cat_vec = ogr.Open(in_cat_shp)
    lyr = cat_vec.GetLayer(0)

    spt_ref = lyr.GetSpatialRef()
    trgt = osr.SpatialReference()