MappingResampleRaster Task

This task resamples a raster to different dimensions using column and row mapping.

The virtual raster associated with this task is ENVIResampleRaster.

Syntax

Result = ENVITask('MappingResampleRaster')

Input parameters (Set, Get): COLUMN_MAPPING, INPUT_RASTER, OUTPUT_RASTER_URI, RESAMPLING, ROW_MAPPING

Output parameters (Get only): OUTPUT_RASTER

Parameters marked as "Set" are those that you can set to specific values. You can also retrieve their current values any time. Parameters marked as "Get" are those whose values you can retrieve but not set.

Input Parameters

COLUMN_MAPPING (required)

Specify an array of interpolation coordinates for each column of pixels. This array must be the same size as the number of columns in INPUT_RASTER. This parameter can be combined with ROW_MAPPING to define a regular grid of interpolation coordinates.

INPUT_RASTER (required)

Specify the raster to resample.

OUTPUT_RASTER_URI (optional)

Specify a string with the fully qualified filename and path to export the associated OUTPUT_RASTER.

If you set this parameter to an asterisk symbol (*), the output raster will be virtual and not written to disk.
If you do not specify this parameter, or set it to an exclamation symbol (!), a temporary file will be created.
If you set it to the hash symbol (#), ENVI creates a file in the temporary directory, but this file will not be deleted when ENVI closes.

RESAMPLING (optional)

Specify the resampling method to use when creating the spatial grid:

Nearest Neighbor (default): 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.

ROW_MAPPING (required)

Specify an array of interpolation coordinates for each row of pixels. This array must be the same size as the number of rows in INPUT_RASTER. This parameter must be combined with COLUMN_MAPPING to define a regular grid of interpolation coordinates.