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Mask Raster

org.knime.geospatial version 1.0.2 by OSA

This node takes a list of raster file location in the input table and perform masking using a two stage operation where first all of the nodata pixels are set to a rank using the gdal_calc, then polygons are generated using the gdal_polygonize. The input raster files should have numeric name. This process generate output shape files in the desired location. The output table contains the generated shape file locations. It also includes rank as fieldname fieldname in the output shape file.

Options

Type
Output datatype. For this node it is set as "Byte" by default
Destination Directory
Location of the output folder where your polygonized shape files will be generated. It will also generate a text file "commands.txt" in this location that contains all the commands use for generating shapefiles.

Input Ports

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The locations of source raster file. The table must contain a "Location" column.

Output Ports

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The locations of generated shapefile. It uses "Location" as column header.

Views

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Installation

To use this node in KNIME, download the below referenced file, save it to your KNIME's plugin folder and restart KNIME.

KNIME 4.3

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