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 properties (Set, Get): COLUMN_MAPPING, INPUT_RASTER, OUTPUT_RASTER_URI, RESAMPLING, ROW_MAPPING
Output properties (Get only): OUTPUT_RASTER
Properties marked as "Set" are those that you can set to specific values. You can also retrieve their current values any time. Properties marked as "Get" are those whose values you can retrieve but not set.
Methods
This task inherits the following methods from ENVITask:
AddParameter
Execute
Parameter
ParameterNames
RemoveParameter
Properties
This task inherits the following properties from ENVITask:
COMMUTE_ON_DOWNSAMPLE
COMMUTE_ON_SUBSET
DESCRIPTION
DISPLAY_NAME
NAME
REVISION
TAGS
This task also contains the following properties:
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
This is a reference to the output raster of filetype ENVI.
OUTPUT_RASTER_URI (optional)
Specify a string with the fully qualified filename and path to export the associated OUTPUT_RASTER.
- If you set this property to an asterisk symbol (*), the output raster will be virtual and not written to disk.
- If you do not specify this property, or set it to an exclamation symbol (!), a temporary file will be created.
RESAMPLING (optional)
Specify the resampling method.
- Nearest Neighbor: Uses the nearest pixel without any interpolation.
- Bilinear (default): 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.
Version History
ENVI 5.2 |
Introduced |
ENVI 5.5 |
OUTPUT_RASTER_URI now supports '*', which allows OUTPUT_RASTER to be virtual output.
|
API Version
4.3
See Also
ENVITask, DimensionsResampleRaster Task, PixelScaleResampleRaster Task, ENVISubsetRaster