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| Re: lunch envi function in 'batch mode' [message #46326 is a reply to message #46310] |
Thu, 17 November 2005 05:08   |
Robert Moss
Messages: 74
Registered: February 1996
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S.Cogliati wrote:
> Hi, I'm developing an Idl application that utilize an Envi function
> (Envi_compute_sun_angles) so I lunch envi in batch mode in this way:
>
> ;start ENVI batch_mode
> OpenW, batch_lun, 'batch_log_from_ENVI.txt', /Get_LUN
> ENVI, /restore_base_save_files
> ENVI_INIT, /batch_mode, batch_unit=batch_lun
> free_lun,batch_lun
>
> ;compute the elevation angle
> elev=ENVI_COMPUTE_SUN_ANGLES (Day, Month, Year, GMTtime, Lat, Lon)
>
>
> I'm sure that when I compile the project the Envi rutines are loaded,
> but the first time that I run the code Idl stops at the Envi function
> call instruction and send me this error message:
>
> % XMANAGER: Caught unexpected error from client application. Message
> follows...
> % Variable is undefined: ENVI_COMPUTE_SUN_ANGLES.
> % Execution halted at: RHO_PANEL 47
> C:\OO_import_v20.0mod\rho_panel.pro
> % COMPUTE_STAT2 50
> C:\OO_import_v20.0mod\compute_stat2.pro
> % XMANAGER_EVLOOP_STANDARD 478
> C:\RSI\IDL61\lib\xmanager.pro
> % XMANAGER 708
> C:\RSI\IDL61\lib\xmanager.pro
> % GUI_PRO 27
> C:\OO_import_v20.0mod\gui.pro
> % $MAIN$
>
>
> After the first time that Idl stops there code runs correctly.
>
> Regards, S.Cogliati
>
I do not think this is an ENVI problem. Try putting the command
COMPILE_OPT STRICTARR at the top of the procedure that is calling
ENVI_COMPUTE_SUN_ANGLES. I suspect IDL thinks it is a variable instead
of a function. If you are using parenthesis for array indices (shame on
you), try using FORWARD_FUNCTION ENVI_COMPUTE_SUN_ANGLES instead.
--
Robert Moss, PhD
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