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Re: plot_3dbox : array has too many elements [message #42568]

Wed, 16 February 2005 09:12

Ralf Schaa
Messages: 37
Registered: June 2001

Member

Paolo Grigis wrote:

>
>
> Ralf Schaa wrote:
>
>> Dear All,
>>
>> I like to use the plot_3dbox procedure to plot a satellite orbit. The
>> cartesian positionvectors consists each of 27292 elements. I tried
>> 27292L and 27292LL when initializing, but I keep getting the same
>> error message : 'array has too many elements'.
>>
>
> Well, it looks like the program is trying to build an array (assuming
> of float type) of 27292 by 27292 elements, which you just can't do in
> idl on 32 bit systems:
>
> IDL> a=fltarr(27292L,27292L)
> % Array has too many elements.

That's it.
Plot_3dbox calls: Surface, FltArr(Xcnt,Xcnt) with Xcnt are my 27292
elements.

Thanks.

-Ralf

> To estimate the maximum size of an IDL array one can use the formula:
>
> maxsize = (2L^31-1) / typesize
>
> where typesize is the size of your datatype in byte (4 bytes
> for float, 2 bytes for integers, 8 bytes for doubles etc.).
> This means that the maximum size in bytes of a single array should
> not be larger than 2GB.
>
>
> Cheers,
> Paolo
>
>
>> What to do?
>>
>> Thanks already
>>
>> -Ralf

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[Message index]

		Re: plot_3dbox : array has too many elements By: Ralf Schaa on Wed, 16 February 2005 09:12
		Re: plot_3dbox : array has too many elements By: Paolo Grigis on Wed, 16 February 2005 07:47
		Re: plot_3dbox : array has too many elements By: David Fanning on Wed, 16 February 2005 06:29

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