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Vector conversion
=================
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.. contents::
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.. _gdalconvertformat:
Convert format
--------------
Converts any OGR-supported vector layer into another OGR-supported format.
This algorithm is derived from the `ogr2ogr utility `_ .
Parameters
..........
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* - Label
- Name
- Type
- Description
* - **Input layer**
- ``INPUT``
- [vector: any]
- Input vector layer
* - **Additional creation options**
(optional)
- ``OPTIONS``
- [string]
Default: '' (no additional options)
- Additional GDAL creation options.
* - **Converted**
- ``OUTPUT``
- [vector: any]
- Specification of the output vector layer.
One of:
* Save to a Temporary File
* Save to File...
The file encoding can also be changed here.
For ``Save to File``, the output format has to be specified.
All GDAL vector formats are supported.
For ``Save to a Temporary File`` the QGIS default vector format
will be used.
Outputs
.......
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* - Label
- Name
- Type
- Description
* - **Converted**
- ``OUTPUT``
- [vector: any]
- The output vector layer
.. _gdalrasterize:
Rasterize (vector to raster)
----------------------------
Converts vector geometries (points, lines and polygons) into a raster image.
This algorithm is derived from the `GDAL rasterize utility `_ .
``Default menu``: :menuselection:`Raster --> Conversion`
Parameters
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* - Label
- Name
- Type
- Description
* - **Input layer**
- ``INPUT``
- [vector: any]
- Input vector layer
* - **Field to use for a burn-in value**
Optional
- ``FIELD``
- [tablefield: numeric]
- Defines the attribute field from which the attributes for
the pixels should be chosen
* - **A fixed value to burn**
Optional
- ``BURN``
- [number]
Default: 0.0
- A fixed value to burn into a band for all features.
* - **Output raster size units**
- ``UNITS``
- [enumeration]
Default: 0
- Units to use when defining the output raster size/resolution. One of:
* 0 --- Pixels
* 1 --- Georeferenced units
* - **Width/Horizontal resolution**
- ``WIDTH``
- [number]
Default: 0.0
- Sets the width (if size units is "Pixels") or horizontal
resolution (if size units is "Georeferenced units") of the
output raster. Minimum value: 0.0.
* - **Height/Vertical resolution**
- ``HEIGHT``
- [number]
Default: 0.0
- Sets the height (if size units is "Pixels") or vertical
resolution (if size units is "Georeferenced units") of the
output raster.
* - **Output extent**
- ``EXTENT``
- [extent]
- Extent of the output raster layer. If the extent is not specified,
the minimum extent that covers the selected reference layer(s)
will be used.
* - **Assign a specified nodata value to output bands**
Optional
- ``NODATA``
- [number]
Default: 0.0
- Assigns a specified nodata value to output bands
* - **Additional creation options**
Optional
- ``OPTIONS``
- [string]
Default: ''
- For adding one or more creation options that control the
raster to be created (colors, block size, file
compression...).
For convenience, you can rely on predefined profiles (see
:ref:`GDAL driver options section `).
* - **Output data type**
- ``DATA_TYPE``
- [enumeration]
Default: 5
- Defines the format of the output raster file.
Options:
* 0 --- Use input layer data type
* 1 --- Byte
* 2 --- Int16
* 3 --- UInt16
* 4 --- UInt32
* 5 --- Int32
* 6 --- Float32
* 7 --- Float64
* 8 --- CInt16
* 9 --- CInt32
* 10 --- CFloat32
* 11 --- CFloat64
* - **Pre-initialize the output image with value**
Optional
- ``INIT``
- [number]
- Pre-initializes the output image bands with this value.
Not marked as the nodata value in the output file.
The same value is used in all the bands.
* - **Invert rasterization**
- ``INVERT``
- [boolean]
Default: False
- Burns the fixed burn value, or the burn value associated
with the first feature into all parts of the image not
inside the provided polygon.
* - **Rasterized**
- ``OUTPUT``
- [raster]
Default: '[Save to temporary file]'
- Specification of the output raster layer.
One of:
* Save to a Temporary File
* Save to File...
The file encoding can also be changed here
For ``Save to File``, the output format has to be specified.
All GDAL raster formats are supported.
For ``Save to a Temporary File`` the QGIS default raster format
will be used.
Outputs
.......
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* - Label
- Name
- Type
- Description
* - **Rasterized**
- ``OUTPUT``
- [raster]
- Output raster layer