You could search for peaks of decreasing height by stepping back through 
through alphabet with your text searches. Of course, peakmax will do a good job 
of finding them anyway.

Best wishes, Jon Cooper. jon.b.coo...@protonmail.com

Sent from Proton Mail mobile

-------- Original Message --------
On 18 Feb 2024, 17:35, Jon Cooper wrote:

> I think we used to use mapsig for printing map sections with single 
> characters to show peak height. You could set it so that low or no density 
> was just a dot and higher values were 0...9 ... A... Z ... * #, etc. up to 
> the maximum or maybe it was another one of Ian's programs. It made peak 
> searching with a text editor pretty easy just by searching for the characters 
> corressponding to the high values. I don't know if that's any use.
>
> Best wishes, Jon Cooper. jon.b.coo...@protonmail.com
>
> Sent from Proton Mail mobile
>
> -------- Original Message --------
> On 18 Feb 2024, 03:29, Bernhard Rupp wrote:
>
>> Der CCP4 Experts & Developers,
>>
>> I am exercising in CCP4i (Windows, 8.0.017) some old-fashioned native 
>> Patterson maps for NCS analysis, using ‘patterson’ of FFT which produces the 
>> *.map (dump) file and 3 Harker *.plt files.
>>
>> Unfortunately, epic fail on the display of the results.
>>
>> The ghostview (cf. image) I cannot install (some dll error) and it also 
>> seems deprecated.
>>
>> As a workaround I use pltdev to generate a *.ps file and distil it into a 
>> pdf and then display. Works, but ghostly 20th century....
>>
>> ...or I display the map directly in Coot and eyeball the 
>> peaks....surprisingly neat and educational.
>>
>> Q1: Do we have a direct way in the GUI to convert/display these CCP4 plt 
>> files?
>>
>> I failed adding as PSviewer "C:\Program Files (x86)\Adobe\Acrobat 
>> DC\Acrobat\acrodist.exe" in the interface configuration (problem maybe the 
>> blanks).
>>
>> But the entry in the Interface Configuration (config.def) seems sensibly 
>> quoted:
>>
>> PS_PREVIEW_NAME,4 _text acrodist.exe
>>
>> PS_PREVIEW_COM,4 _text "C:\Program Files (x86)\Adobe\Acrobat 
>> DC\Acrobat\acrodist.exe"
>>
>> Q2: how do I properly enter the path to the distiller in the interface 
>> configuration?
>>
>> Mapslicer is also uncooperative (cf. img).
>>
>> The Interface Configuration entry informs me that “ccp4mapwish [file join 
>> [GetEnvPath CCP4I_TOP] bin mapslicer.tcl]”.
>>
>> Q3: How should I fix this (I swear I did not wish with the installation)?
>>
>> In search of a more modern approach to this map analysis I also tried CCP4i2 
>> and Phenix, but there was no task like
>>
>> “Make a native Patterson and show me the *&%# map” to be found.
>>
>> Q4: would this be a useful task to provide?
>>
>> (a selfrotation task exists in ccp4i2 via molrep, and there, PS viewing 
>> works just fine).
>>
>> Cheers, BR
>>
>> ------------------------------------------------------
>>
>> Bernhard Rupp, Psilosopher
>>
>> https://psilosophy.org/
>>
>> https://www.hofkristallamt.org/
>>
>> b...@hofkristallamt.org
>>
>> +1 925 209 7429
>>
>> +43 676 571 0536
>>
>> ------------------------------------------------------
>>
>> All models are wrong but some are useful.
>>
>> ------------------------------------------------------
>>
>> ---------------------------------------------------------------
>>
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