GenerateThumbnail Task
This task generates a thumbnail from the given raster and size. The bands to use for RGB will be automatically determined.
Example
; Start the application
e = ENVI()
; Open an input file
File = Filepath('qb_boulder_msi', Subdir=['data'], $
Root_Dir=e.Root_Dir)
Raster = e.OpenRaster(File)
; Get the task from the catalog of ENVITasks
Task = ENVITask('GenerateThumbnail')
; Define inputs
Task.INPUT_RASTER = Raster
Task.THUMBNAIL_SIZE = 800
; Run the task
Task.Execute
; Add the output to the Data Manager
e.Data.Add, Task.OUTPUT_RASTER
; Display the result
View = e.GetView()
Layer = View.CreateLayer(Task.OUTPUT_RASTER)
Syntax
Result = ENVITask('GenerateThumbnail')
Input properties (Set, Get): INPUT_RASTER, OUTPUT_RASTER_URI, THUMBNAIL_SIZE
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:
Properties
This task inherits the following properties from ENVITask:
This task also contains the following properties:
INPUT_RASTER (required)
Specify the raster to generate a thumbnail from.
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 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.
THUMBNAIL_SIZE (required)
Specify the largest dimension of the thumbnail (columns or rows). The input raster's aspect ratio will be retained.
Version History
|
ENVI 5.6.2 |
Introduced |
API Version
4.2