FeatureCountToROI Task

This task creates point regions of interest (ROIs) from a saved feature count file (.efc).

Example

Sample data files are available on our ENVI Tutorials web page. Click the "Deep Learning" link in the ENVI Tutorial Data section to download a .zip file containing the feature counting data. Extract the contents to a local directory.

; Start the application

e = ENVI()

; Open a feature count file

; Update the following line with the correct path

; to the tutorial data files

File = 'C:\MyTutorialFiles\FeatureCountContainers.efc'

; Open an orthophoto of seaport

OrthoFile = 'C:\MyTutorialFiles\OaklandPortOrthophoto1.dat'

Raster = e.OpenRaster(OrthoFile)

; Get the task from the catalog of ENVITasks

Task = ENVITask('FeatureCountToROI')

; Define inputs

Task.INPUT_FEATURE_COUNT_URI = File

; Run the task

Task.Execute

; Display the resulting ROI over the orthophoto

View = e.GetView()

Layer = View.CreateLayer(Raster)

roiLayer = Layer.AddROI(Task.OUTPUT_ROI)

View.Zoom, 3.0

Syntax

Result = ENVITask('FeatureCountToROI')

Input properties (Set, Get): INPUT_FEATURE_COUNT_URI, OUTPUT_ROI_URI

Output properties (Get only): OUTPUT_ROI

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.