| Re: Default interactive integer type [message #35032] |
Fri, 09 May 2003 10:22  |
Rick Towler
Messages: 821
Registered: August 1998
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Senior Member |
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"Kenneth P. Bowman" wrote ...
> "Rick Towler" wrote:
>
>>> Is there any way to change the default integer type for interactive
use
>>> or is explicit specification of the type the only solution?
>>
>> Sure! Just issue the compiler option in your main session:
>>
>> IDL> i=1
>> IDL> help,i
>> I INT = 1
>> IDL> compile_opt IDL2
>> IDL> i=1
>> IDL> help, i
>> I LONG = 1
>>
>> This will stick until you reset your IDL session.
>
>
> Duh!
>
> I guess I can be forgiven since the docs say:
>
I don't slow myself down by reading the docs. Sure, it may lead to some
embarrassment along the way but it makes working with IDL much more
exciting!Sheesh, you must be one of these people that actually reads the
manual before he uncrates that new gizmo. :)
> RESET_SESSION does not re-run the startup.pro file, does it?
Unfortunately IDL doesn't re-run the startup.pro file when you reset your
session. That has bit me a number of times :(
-Rick
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| Re: Default interactive integer type [message #35035 is a reply to message #35033] |
Fri, 09 May 2003 09:32  |
Liam E. Gumley
Messages: 378
Registered: January 2000
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Senior Member |
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"Rick Towler" <rtowler@u.washington.edu> wrote in message
news:b9gjau$20sa$1@nntp6.u.washington.edu...
>
> "Kenneth P. Bowman" wrote
> ...
>> In a procedure or function the default integer type can be changed from
>> INT to LONG with
>>
>> COMPILE_OPT DEFINT32
>>
>> or
>>
>> COMPILE_OPT IDL2
>>
>> Is there any way to change the default integer type for interactive use
>> or is explicit specification of the type the only solution?
>>
>> IDL> i = 32
>> IDL> help, i
>> I INT = 32
>> IDL> i = 32L
>> IDL> help, i
>> I LONG = 32
>>
>
> Sure! Just issue the compiler option in your main session:
>
> IDL> i=1
> IDL> help,i
> I INT = 1
> IDL> compile_opt IDL2
> IDL> i=1
> IDL> help, i
> I LONG = 1
>
>
> This will stick until you reset your IDL session.
That's such a good idea, I've added it to my IDL startup file
(idl_startup.pro):
if !version.os_family eq 'unix' then device, true_color=24
window, /free, /pixmap, colors=-10
wdelete, !d.window
device, decomposed=0, retain=2, set_character_size=[10, 12]
device, get_visual_depth=depth
compile_opt idl2
print, 'Display depth: ', strcompress(depth)
print, 'Color table size: ', strcompress(!d.table_size)
print, 'Default integer type: ', size(0, /tname)
Now I'll see if it breaks any old code!
Cheers,
Liam.
Practical IDL Programming
http://www.gumley.com/
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| Re: Default interactive integer type [message #35113 is a reply to message #35032] |
Mon, 12 May 2003 13:00 |
R.Bauer
Messages: 1424
Registered: November 1998
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Senior Member |
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Rick Towler wrote:
>
> "Kenneth P. Bowman" wrote ...
>> "Rick Towler" wrote:
>>
>>>> Is there any way to change the default integer type for interactive
> use
>>>> or is explicit specification of the type the only solution?
>>>
>>> Sure! Just issue the compiler option in your main session:
>>>
>>> IDL> i=1
>>> IDL> help,i
>>> I INT = 1
>>> IDL> compile_opt IDL2
>>> IDL> i=1
>>> IDL> help, i
>>> I LONG = 1
>>>
>>> This will stick until you reset your IDL session.
>>
>>
>> Duh!
>>
>> I guess I can be forgiven since the docs say:
>>
>
> I don't slow myself down by reading the docs. Sure, it may lead to some
> embarrassment along the way but it makes working with IDL much more
> exciting!Sheesh, you must be one of these people that actually reads the
> manual before he uncrates that new gizmo. :)
>
>
>> RESET_SESSION does not re-run the startup.pro file, does it?
>
> Unfortunately IDL doesn't re-run the startup.pro file when you reset your
> session. That has bit me a number of times :(
>
>
> -Rick
Does it help to add a @start_up into each critical source.
On the other hand if you set integer always to long this takes a lot of
memory for indexing of arrays. Or did you explicity write
a=5s if you like "a" to be a short integer.
Reimar
--
Forschungszentrum Juelich
email: R.Bauer@fz-juelich.de
http://www.fz-juelich.de/icg/icg-i/
============================================================ ======
a IDL library at ForschungsZentrum Juelich
http://www.fz-juelich.de/icg/icg-i/idl_icglib/idl_lib_intro. html
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