ENVIPointCloudViewer::GetOpenData

The GetOpenData function returns a reference to an ENVIPointCloud object that is already open in the ENVI LiDAR application.

Note: This method is supported only on Windows.

Example

; Get the ENVIPointCloudViewer application

e = ENVI()

elv = ENVIPointCloudViewer()

; Open the las file and display in the viewer

file = FILEPATH('DataSample.las', ROOT_DIR=e.ROOT_DIR, $

  SUBDIRECTORY = ['data','lidar'])

pointcloud = e.OpenPointCloud(file, $

  PROJECT_URI=Filepath('DataSample', /TMP))

elv.Display, pointcloud

; Get the open data

openpc = elv.GetOpenData()

; Print number of points and extents

print, openpc.NPOINTS

print, openpc.Data_Range

Syntax

Result = ENVIPointCloudViewer.GetOpenData([, ERROR=variable])

Return Value

This method returns a reference to an ENVIPointCloudViewer object.

Arguments

None.

Keywords

ERROR

Set this keyword to a named variable that will contain any error message issued during execution of this routine. If no error occurs, the ERROR variable will be set to a null string (''). If an error occurs and the routine is a function, then the function result will be undefined.

When this keyword is not set and an error occurs, ENVI returns to the caller and execution halts. In this case, the error message is contained within !ERROR_STATE and can be caught using IDL's CATCH routine. See IDL Help for more information on !ERROR_STATE and CATCH.

See Manage Errors for more information on error handling in ENVI programming.

Version History

ENVI 5.3

Introduced

API Version

4.2