E3De::Close

The Close method closes the currently open project and destroys the E3De object so subsequent operations on that E3De object will throw an Invalid Object Reference error. If ENVI LiDAR is not in headless mode (that is, the user interface is displayed), the project will be closed in the user interface.

This method has been deprecated. Use ENVIPointCloud::Close instead.

Example

Use the DataSample.las file to first create a project named DataSample.ini.

; Create a headless instance

e = E3De(/HEADLESS)

; Open a project

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

  SUBDIRECTORY = ['DataSample'])

lidar = e.OpenLidar(file)

; Print the number of points and tile size

PRINT, 'Total number of points: ', lidar.TOTAL_NUMBER_OF_POINTS

PRINT, 'Tile size in meters: ', lidar.TILE_SIZE_METERS

; Close any open lidar objects

e.Close

Syntax

E3De.Close [, ERROR=variable]

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

3.2	Introduced
ENVI 5.3	Obsolete