Re: [ccp4bb] mapmask flip the cutted map if input map is huge

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CCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999

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Subject: Re: mapmask flip the cutted map if input map is huge
From: Kevin Cowtan cowtan {- at -} YSBL {- dot -} YORK {- dot -} AC {- dot -} UK
Date: 2008-11-01

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From: Raja Dey deyraja1 {- at -} YAHOO {- dot -} CO {- dot -} IN
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Subject: Re: mapmask flip the cutted map if input map is huge
From: Jinghua Tang jinghua {- at -} UCSD {- dot -} EDU
Date: 2008-11-01

Dear Kevin,

Thank you for your reply! This is a cryoEM map with grid:
1023x1023x1023 and physical file size over 4GB:4282397692

Mapmask has been compiled on a 64bit machine. Is there anything in the
code need to adjusted for the large dimension?

Thank you for your advice!

Jinghua

On Sat, 1 Nov 2008, Kevin Cowtan wrote:

> The size of the cell makes no difference. The size of the grid might - but
> this is checked for. The program should stop if the grid is too big.
>
> Unless you've got a map which won't fit in 4GB of RAM...
>
> Kevin
>
> Jinghua Tang wrote:
>> Mapmask behaves normally with small input map. But when I try it on an
>> input
>> map with Unit cell dimensions:1023.12 1023.12 1023.12 A, the resulting map
>> is flipped.
>>
>> Do you know whether there is map size limit for mapmask or how to avoid
>> map
>> flipping?
>>
>> Thank you in advance!
>>
>> Jinghua
>>
>>
>>
>

CCP4bb navigation

CCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999

Previous message:
Subject: Re: mapmask flip the cutted map if input map is huge
From: Kevin Cowtan cowtan {- at -} YSBL {- dot -} YORK {- dot -} AC {- dot -} UK
Date: 2008-11-01

Next message:
Subject: correct atom name
From: Raja Dey deyraja1 {- at -} YAHOO {- dot -} CO {- dot -} IN
Date: 2008-11-01