def generic_asc2dem(name_in,
name_out=None,
quantity_name=None,
use_cache=False,
verbose=False):
"""Read raster from the following ASCII format (.asc)
Generic function, created from asc2dem
Example:
ncols 3121
nrows 1800
xllcorner 722000
yllcorner 5893000
cellsize 25
NODATA_value -9999
138.3698 137.4194 136.5062 135.5558 ..........
Convert name_in (.asc) to NetCDF format (.dem)
mimicking the ASCII format closely.
An accompanying file with same basename but extension .prj must exist
and is used to fix the UTM zone, datum, false northings and eastings.
The prj format is assumed to be as
Projection UTM
Zone 56
Datum WGS84
Zunits NO
Units METERS
Spheroid WGS84
Xshift 0.0000000000
Yshift 10000000.0000000000
Parameters
"""
kwargs = {
'name_out': name_out,
'quantity_name': quantity_name,
'verbose': verbose
}
if use_cache is True:
from caching import cache
result = cache(_generic_convert_dem_from_ascii2netcdf,
name_in,
kwargs,
dependencies=[name_in, name_in[:-4] + '.prj'],
verbose=verbose)
else:
result = apply(_generic_convert_dem_from_ascii2netcdf, [name_in],
kwargs)
return result
def generic_dem2pts(
name_in,
name_out=None,
quantity_name=None,
easting_min=None,
easting_max=None,
northing_min=None,
northing_max=None,
use_cache=False,
verbose=False,
):
"""Read raster file from the following NetCDF format (.dem)
Generic function, created from dem2pts
Example:
ncols 3121
nrows 1800
xllcorner 722000
yllcorner 5893000
cellsize 25
NODATA_value -9999
138.3698 137.4194 136.5062 135.5558 ..........
name_in may be a .asc or .dem file to be converted.
Convert to NetCDF pts format which is
points: (Nx2) float array
elevation: N float array
"""
kwargs = {
'name_out': name_out,
'quantity_name': quantity_name,
'easting_min': easting_min,
'easting_max': easting_max,
'northing_min': northing_min,
'northing_max': northing_max,
'verbose': verbose
}
if use_cache is True:
from caching import cache
result = cache(_generic_dem2pts,
name_in,
kwargs,
dependencies=[name_in],
verbose=verbose)
else:
result = apply(_generic_dem2pts, [name_in], kwargs)
return result
def generic_dem2pts(
self,
name_in,
name_out=None,
quantity_name=None,
easting_min=None,
easting_max=None,
northing_min=None,
northing_max=None,
use_cache=False,
verbose=False,
):
"""Read raster file from the following NetCDF format (.dem)
Generic function, created from dem2pts
Example:
ncols 3121
nrows 1800
xllcorner 722000
yllcorner 5893000
cellsize 25
NODATA_value -9999
138.3698 137.4194 136.5062 135.5558 ..........
name_in may be a .asc or .dem file to be converted.
Convert to NetCDF pts format which is
points: (Nx2) float array
elevation: N float array
"""
kwargs = {
"name_out": name_out,
"quantity_name": quantity_name,
"easting_min": easting_min,
"easting_max": easting_max,
"northing_min": northing_min,
"northing_max": northing_max,
"verbose": verbose,
}
if use_cache is True:
from caching import cache
result = cache(self._generic_dem2pts, name_in, kwargs, dependencies=[name_in], verbose=verbose)
else:
result = apply(self._generic_dem2pts, [name_in], kwargs)
return result
def generic_asc2dem(self, name_in, name_out=None, quantity_name=None, use_cache=False, verbose=False):
"""Read raster from the following ASCII format (.asc)
Generic function, created from asc2dem
Example:
ncols 3121
nrows 1800
xllcorner 722000
yllcorner 5893000
cellsize 25
NODATA_value -9999
138.3698 137.4194 136.5062 135.5558 ..........
Convert name_in (.asc) to NetCDF format (.dem)
mimicking the ASCII format closely.
An accompanying file with same basename but extension .prj must exist
and is used to fix the UTM zone, datum, false northings and eastings.
The prj format is assumed to be as
Projection UTM
Zone 56
Datum WGS84
Zunits NO
Units METERS
Spheroid WGS84
Xshift 0.0000000000
Yshift 10000000.0000000000
Parameters
"""
kwargs = {"name_out": name_out, "quantity_name": quantity_name, "verbose": verbose}
if use_cache is True:
from caching import cache
result = cache(
self._generic_convert_dem_from_ascii2netcdf,
name_in,
kwargs,
dependencies=[name_in, name_in[:-4] + ".prj"],
verbose=verbose,
)
else:
result = apply(self._generic_convert_dem_from_ascii2netcdf, [name_in], kwargs)
return result
def generic_dem2npy(self, name_in, name_out=None, quantity_name=None,
easting_min=None, easting_max=None,
northing_min=None, northing_max=None,
use_cache=False, verbose=False,):
"""
Read raster file from the following NetCDF format (.dem)
Generic function, created from dem2npy
Example:
ncols 3121
nrows 1800
xllcorner 722000
yllcorner 5893000
cellsize 25
NODATA_value -9999
138.3698 137.4194 136.5062 135.5558 ..........
name_in may be a .asc or .dem file to be converted.
Convert to numpy array which is
points: (Nx3) float array
"""
kwargs = {'name_out': name_out,
'quantity_name': quantity_name,
'easting_min': easting_min,
'easting_max': easting_max,
'northing_min': northing_min,
'northing_max': northing_max,
'verbose': verbose}
if use_cache is True:
from caching import cache
result = cache(self._generic_dem2npy, name_in, kwargs,
dependencies = [name_in],
verbose = verbose)
else:
result = apply(self._generic_dem2npy, [name_in], kwargs)
return result
