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merge.py
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merge.py
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"""$ rio merge"""
import click
from rasterio.enums import Resampling
from rasterio.rio import options
from rasterio.rio.helpers import resolve_inout
@click.command(short_help="Merge a stack of raster datasets.")
@options.files_inout_arg
@options.output_opt
@options.format_opt
@options.bounds_opt
@options.resolution_opt
@click.option('--resampling',
type=click.Choice([r.name for r in Resampling if r.value <= 7]),
default='nearest', help="Resampling method.",
show_default=True)
@options.nodata_opt
@options.bidx_mult_opt
@options.overwrite_opt
@click.option('--precision', type=int, default=10,
help="Number of decimal places of precision in alignment of "
"pixels")
@options.creation_options
@click.pass_context
def merge(ctx, files, output, driver, bounds, res, resampling,
nodata, bidx, overwrite, precision, creation_options):
"""Copy valid pixels from input files to an output file.
All files must have the same number of bands, data type, and
coordinate reference system.
Input files are merged in their listed order using the reverse
painter's algorithm. If the output file exists, its values will be
overwritten by input values.
Geospatial bounds and resolution of a new output file in the
units of the input file coordinate reference system may be provided
and are otherwise taken from the first input file.
Note: --res changed from 2 parameters in 0.25.
\b
--res 0.1 0.1 => --res 0.1 (square)
--res 0.1 0.2 => --res 0.1 --res 0.2 (rectangular)
"""
from rasterio.merge import merge as merge_tool
output, files = resolve_inout(
files=files, output=output, overwrite=overwrite)
resampling = Resampling[resampling]
with ctx.obj["env"]:
merge_tool(
files,
bounds=bounds,
res=res,
nodata=nodata,
precision=precision,
indexes=(bidx or None),
resampling=resampling,
dst_path=output,
dst_kwds=creation_options,
)