23.2.6. Vector conversion¶
23.2.6.1. Convert format¶
Converts any OGR-supported vector layer into another OGR-supported format.
This algorithm is derived from the ogr2ogr utility.
23.2.6.1.1. Parameters¶
Label |
Name |
Type |
Description |
|---|---|---|---|
Input layer |
|
[vector: any] |
Input vector layer |
Additional creation options (optional) |
|
[string] Default: ‘’ (no additional options) |
Additional GDAL creation options. |
Converted |
|
[same as input] |
Specification of the output vector layer. One of:
The file encoding can also be changed here. For |
23.2.6.1.2. Outputs¶
Label |
Name |
Type |
Description |
|---|---|---|---|
Converted |
|
[same as input] |
The output vector layer |
23.2.6.1.3. Python code¶
Algorithm ID: gdal:convertformat
import processing
processing.run("algorithm_id", {parameter_dictionary})
The algorithm id is displayed when you hover over the algorithm in the Processing Toolbox. The parameter dictionary provides the parameter NAMEs and values. See Using processing algorithms from the console for details on how to run processing algorithms from the Python console.
23.2.6.2. Rasterize (overwrite with attribute)¶
Overwrites a raster layer with values from a vector layer. New values are assigned based on the attribute value of the overlapping vector feature.
This algorithm is derived from the GDAL rasterize utility.
23.2.6.2.1. Parameters¶
Label |
Name |
Type |
Description |
|---|---|---|---|
Input layer |
|
[vector: any] |
Input vector layer |
Input raster layer |
|
[raster] |
Input raster layer |
Field to use for a burn-in value Optional |
|
[tablefield: numeric] |
Defines the attribute field to use to set the pixels values |
Add burn in values to existing raster values |
|
[boolean] Default: False |
If False, pixels are assigned the selected field’s value. If True, the selected field’s value is added to the value of the input raster layer. |
Additional command-line parameters Optional |
|
[string] Default: ‘’ |
Add extra GDAL command line options |
23.2.6.2.2. Outputs¶
Label |
Name |
Type |
Description |
|---|---|---|---|
Rasterized |
|
[raster] |
The overwritten input raster layer |
23.2.6.2.3. Python code¶
Algorithm ID: gdal:rasterize_over
import processing
processing.run("algorithm_id", {parameter_dictionary})
The algorithm id is displayed when you hover over the algorithm in the Processing Toolbox. The parameter dictionary provides the parameter NAMEs and values. See Using processing algorithms from the console for details on how to run processing algorithms from the Python console.
23.2.6.3. Rasterize (overwrite with fixed value)¶
Overwrites parts of a raster layer with a fixed value. The pixels to overwrite are chosen based on the supplied (overlapping) vector layer.
This algorithm is derived from the GDAL rasterize utility.
23.2.6.3.1. Parameters¶
Label |
Name |
Type |
Description |
|---|---|---|---|
Input layer |
|
[vector: any] |
Input vector layer |
Input raster layer |
|
[raster] |
Input raster layer |
A fixed value to burn |
|
[number] Default: 0.0 |
The value to burn |
Add burn in values to existing raster values |
|
[boolean] Default: False |
If False, pixels are assigned the fixed value. If True, the fixed value is added to the value of the input raster layer. |
Additional command-line parameters Optional |
|
[string] Default: ‘’ |
Add extra GDAL command line options |
23.2.6.3.2. Outputs¶
Label |
Name |
Type |
Description |
|---|---|---|---|
Rasterized |
|
[raster] |
The overwritten input raster layer |
23.2.6.3.3. Python code¶
Algorithm ID: gdal:rasterize_over_fixed_value
import processing
processing.run("algorithm_id", {parameter_dictionary})
The algorithm id is displayed when you hover over the algorithm in the Processing Toolbox. The parameter dictionary provides the parameter NAMEs and values. See Using processing algorithms from the console for details on how to run processing algorithms from the Python console.
23.2.6.4. 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:
23.2.6.4.1. Parameters¶
Label |
Name |
Type |
Description |
|---|---|---|---|
Input layer |
|
[vector: any] |
Input vector layer |
Field to use for a burn-in value Optional |
|
[tablefield: numeric] |
Defines the attribute field from which the attributes for the pixels should be chosen |
A fixed value to burn Optional |
|
[number] Default: 0.0 |
A fixed value to burn into a band for all features. |
Output raster size units |
|
[enumeration] Default: 0 |
Units to use when defining the output raster size/resolution. One of:
|
Width/Horizontal resolution |
|
[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 |
|
[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 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 |
|
[number] Default: 0.0 |
Assigns a specified nodata value to output bands |
Additional creation options Optional |
|
[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 GDAL driver options section). |
Output data type |
|
[enumeration] Default: 5 |
Defines the format of the output raster file. Options:
|
Pre-initialize the output image with value Optional |
|
[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 |
|
[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 |
|
[raster] Default: ‘[Save to temporary file]’ |
Specification of the output raster layer. One of:
The file encoding can also be changed here
For |
23.2.6.4.2. Outputs¶
Label |
Name |
Type |
Description |
|---|---|---|---|
Rasterized |
|
[raster] |
Output raster layer |
23.2.6.4.3. Python code¶
Algorithm ID: gdal:rasterize
import processing
processing.run("algorithm_id", {parameter_dictionary})
The algorithm id is displayed when you hover over the algorithm in the Processing Toolbox. The parameter dictionary provides the parameter NAMEs and values. See Using processing algorithms from the console for details on how to run processing algorithms from the Python console.