gdal_rasterize Man page

gdal_rasterize General Commands Manual gdal_rasterize

NAME

gdal_rasterize – gdal_rasterize burns vector geometries into a raster

SYNOPSIS

Usage: gdal_rasterize [-b band]* [-i] [-at] [-burn value]* | [-a attribute_name] [-3d] [-l layername]* [-where expression] [-sql select_statement] [-of format] [-a_srs srs_def] [-co “NAME=VALUE”]*
[-a_nodata value] [-init value]*
[-te xmin ymin xmax ymax] [-tr xres yres] [-tap] [-ts width height] [-ot {Byte/Int16/UInt16/UInt32/Int32/Float32/Float64/
CInt16/CInt32/CFloat32/CFloat64}] [-q]

DESCRIPTION

This program burns vector geometries (points, lines and polygons) into
the raster band(s) of a raster image. Vectors are read from OGR
supported vector formats.

Note that the vector data must in the same coordinate system as the
raster data; on the fly reprojection is not provided.

Since GDAL 1.8.0, the target GDAL file can be created by
gdal_rasterize. One of -tr or -ts option must be used in that case.

-b band:
The band(s) to burn values into. Multiple -b arguments may be used
to burn into a list of bands. The default is to burn into band 1.

-i:
Invert rasterization. Burn the fixed burn value, or the burn value
associated with the first feature into all parts of the image not
inside the provided a polygon.

-at:
Enables the ALL_TOUCHED rasterization option so that all pixels
touched by lines or polygons will be updated not just those one the
line render path, or whose center point is within the polygon.
Defaults to disabled for normal rendering rules.

-burn value:
A fixed value to burn into a band for all objects. A list of -burn
options can be supplied, one per band being written to.

-a attribute_name:
Identifies an attribute field on the features to be used for a burn
in value. The value will be burned into all output bands.

-3d:
Indicates that a burn value should be extracted from the ‘Z’ values
of the feature. These values are adjusted by the burn value given
by ‘-burn value’ or ‘-a attribute_name’ if provided. As of now,
only points and lines are drawn in 3D.

-l layername:
Indicates the layer(s) from the datasource that will be used for
input features. May be specified multiple times, but at least one
layer name or a -sql option must be specified.

-where expression:
An optional SQL WHERE style query expression to be applied to
select features to burn in from the input layer(s).

-sql select_statement:
An SQL statement to be evaluated against the datasource to produce
a virtual layer of features to be burned in.

-of format:
(GDAL >= 1.8.0) Select the output format. The default is GeoTIFF
(GTiff). Use the short format name.

-a_nodata value:
(GDAL >= 1.8.0) Assign a specified nodata value to output bands.

-init value:
(GDAL >= 1.8.0) Pre-initialize the output image bands with these
values. However, it is not marked as the nodata value in the output
file. If only one value is given, the same value is used in all the
bands.

-a_srs srs_def:
(GDAL >= 1.8.0) Override the projection for the output file. If not
specified, the projection of the input vector file will be used if
available. If incompatible projections between input and output
files, no attempt will be made to reproject features. The srs_def
may be any of the usual GDAL/OGR forms, complete WKT, PROJ.4,
EPSG:n or a file containing the WKT.

-co ‘NAME=VALUE’:
(GDAL >= 1.8.0) 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.

-te xmin ymin xmax ymax :
(GDAL >= 1.8.0) set georeferenced extents. The values must be
expressed in georeferenced units. If not specified, the extent of
the output file will be the extent of the vector layers.

-tr xres yres :
(GDAL >= 1.8.0) set target resolution. The values must be expressed
in georeferenced units. Both must be positive values.

-tap:
(GDAL >= 1.8.0) (target aligned pixels) align the coordinates of
the extent of the output file to the values of the -tr, such that
the aligned extent includes the minimum extent.

-ts width height:
(GDAL >= 1.8.0) set output file size in pixels and lines. Note that
-ts cannot be used with -tr

-ot type:
(GDAL >= 1.8.0) For the output bands to be of the indicated data
type. Defaults to Float64

-q:
(GDAL >= 1.8.0) Suppress progress monitor and other non-error
output.

src_datasource:
Any OGR supported readable datasource.

dst_filename:
The GDAL supported output file. Must support update mode access.
Before GDAL 1.8.0, gdal_rasterize could not create new output
files.

EXAMPLE
The following would burn all polygons from mask.shp into the RGB TIFF
file work.tif with the color red (RGB = 255,0,0).

gdal_rasterize -b 1 -b 2 -b 3 -burn 255 -burn 0 -burn 0 -l mask mask.shp work.tif

The following would burn all ‘class A’ buildings into the output
elevation file, pulling the top elevation from the ROOF_H attribute.

gdal_rasterize -a ROOF_H -where ‘class=”A”‘ -l footprints footprints.shp city_dem.tif

AUTHORS
Frank Warmerdam warmerdam@pobox.com

GDAL Tue Apr 5 2016 gdal_rasterize

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