gdal_proximity(1)gdal_proximity(1)NAMEgdal_proximity - Produces a raster proximity map.
SYNOPSIS
gdal_proximity.py srcfile dstfile [-srcband n] [-dstband n]
[-of format] [-co name=value]*
[-ot Byte/Int16/Int32/Float32/etc]
[-values n,n,n] [-distunits PIXEL/GEO]
[-maxdist n] [-nodata n] [-use_input_nodata YES/NO]
[-fixed-buf-val n]
DESCRIPTION
The gdal_proximity.py script generates a raster proximity map
indicating the distance from the center of each pixel to the center of
the nearest pixel identified as a target pixel. Target pixels are those
in the source raster for which the raster pixel value is in the set of
target pixel values.
srcfile
The source raster file used to identify target pixels.
dstfile
The destination raster file to which the proximity map will be
written. It may be a pre-existing file of the same size as srcfile.
If it does not exist it will be created.
-srcband n
Identifies the band in the source file to use (default is 1).
-dstband n
Identifies the band in the destination file to use (default is 1).
-of format:
Select the output format. The default is GeoTIFF (GTiff). Use the
short format name.
-co 'NAME=VALUE':
passes a creation option to the output format driver. Multiple -co
options may be listed. See format specific documentation for legal
creation options for each format.
-ot datatype:
Force the output image bands to have a specific type. Use type
names (i.e. Byte, Int16,...)
-values n,n,n:
A list of target pixel values in the source image to be considered
target pixels. If not specified, all non-zero pixels will be
considered target pixels.
-distunits PIXEL/GEO:
Indicate whether distances generated should be in pixel or
georeferenced coordinates (default PIXEL).
-maxdist n:
The maximum distance to be generated. The nodata value will be used
for pixels beyond this distance. If a nodata value is not provided,
the output band will be queried for its nodata value. If the output
band does not have a nodata value, then the value 65535 will be
used. Distance is interpreted in pixels unless -distunits GEO is
specified.
-nodata n:
Specify a nodata value to use for the destination proximity raster.
-use_input_nodata YES/NO:
(GDAL >= 2.0) Indicate whether nodata pixels in the input raster
should be nodata in the output raster (default NO).
-fixed-buf-val n:
Specify a value to be applied to all pixels that are within the
-maxdist of target pixels (including the target pixels) instead of
a distance value.
AUTHORS
Frank Warmerdam warmerdam@pobox.com
GDAL Sun Dec 17 2017 gdal_proximity(1)
