## Virtual Raster Builder

## Description

The Virtual Raster Builder is a tool to create a GDAL Virtual Raster (VRT) by drag and drop. It can be used to stack and mosaic rasterbands or to create spatial- or band-subsets.

## Workflow

To build a new virtual raster (VRT) follow these steps:

1. Add potential source files to the list of source files:

   Button | Action
   --- | ---
   | add source raster
   | remove source raster
   | load raster known to QGIS
   | expand source file tree node(s)
   | collapse source file tree node(s)

2. Specify the VRT structure by drag and drop of source bands

   Button | Action
   --- | ---
   | add virtual band
   | remove virtual band
   | import virtual bands from existing VRT file
   | expand VRT tree node(s)
   | collapse VRT tree node(s)

   Virtual band names can be changed by mouse double-click.

3. Specify other VRT settings:

   - set spatial resolution
   - set the resampling method
   - set spatial extent
   - set output format

4. Save the new file as VRT. In case of output formats other than VRT, e.g. GeoTIFF, the VRT is created in a temporary location first and the binary file afterwards using gdal.Translate

## Licence and Use

The Virtual Raster Builder is licenced under the GPL-3 Licence.