GBDX

ENVI® Build Layer Stack

This task builds a layer-stacked raster from a set of rasters that will be regridded to a common spatial grid.
GBDX Registered Name: ENVI_BuildLayerStack
Provider: Harris Geospatial Solutions

Inputs

The following table lists all ENVI_BuildLayerStack inputs.
Mandatory (optional) settings are listed as Required = True (Required = False).

Name Required Default Valid Values Description
file_types False N/A string GBDX Option. Comma seperated list of permitted file type extensions. Use this to filter input files -- Value Type: STRING[*]
input_rasters True N/A See ENVIRASTERARRAY input type Specify an array of rasters from which to build a layer-stacked raster. -- Value Type: ENVIRASTERARRAY
input_rasters_format False N/A string Provide the format of the image, for example: landsat-8. -- Value Type: STRING
input_rasters_band_grouping False N/A string Provide the name of the band grouping to be used in the task, ie - panchromatic. -- Value Type: STRING
input_rasters_filename False N/A string Provide the explicit relative raster filename that ENVI will open. This overrides any file lookup in the task runner. -- Value Type: STRING
output_raster_uri_filename False N/A string Specify a string with the fully qualified filename and path of the associated OUTPUT_RASTER. If you do not specify this property, or set it to an exclamation symbol (!), a temporary file will be created. -- Value Type: STRING
resampling False "nearest neighbor" string Specify the resampling method. Nearest Neighbor: Uses the nearest pixel without any interpolation. Bilinear: Performs a linear interpolation using four pixels to resample, Cubic Convolution: Uses 16 pixels to approximate the sinc function using cubic polynomials to resample the image. -- Value Type: STRING -- Default Value: "Nearest Neighbor"
grid_definition False N/A See ENVIGRIDDEFINITION input type Specify a grid definition that defines the pixel size, rows and columns, and coordinate system of the desired spatial reference. If this is not set, then an ENVIGridDefinition will be constructed from the first raster in INPUT_RASTERS. -- Value Type: ENVIGRIDDEFINITION

Outputs

The following table lists all ENVI_BuildLayerStack outputs.
Mandatory (optional) settings are listed as Required = True (Required = False).

Name Required Default Valid Values Description
task_meta_data False N/A directory GBDX Option. Output location for task meta data such as execution log and output JSON
output_raster_uri True N/A directory Output of the associated OUTPUT_RASTER. If you do not specify this property, or set it to an exclamation symbol (!), a temporary file will be created. -- Value Type: ENVIURI

Output structure

The output_raster_uri file will be written to the specified S3 Customer Account Location.

Background

For additional background information on this task please refer to the Harris Geospatial ENVI documentation and
ENVI® Build Layer Stack.

Contact

If you have any questions or issues with this task, please contact gbdx-support@digitalglobe.com.

ENVI® Build Layer Stack

This task builds a layer-stacked raster from a set of rasters that will be regridded to a common spatial grid.
GBDX Registered Name: ENVI_BuildLayerStack
Provider: Harris Geospatial Solutions