Re: [COOT] Map sharpening

2014-06-04 Thread Pete Meyer
For map sharpening in general, that's correct. If coot is doing something different (aka sharpness with reference to a model), then Paul's description would be authoritative :) . Pete George Devaniranjan wrote: Hi Pete, Thank you for your reply- Just to clarify what you wrote, you mean

Re: [COOT] Map sharpening

2014-06-03 Thread Pete Meyer
So just to clarify, the sharpen/blur sliding ruler scales ALL original B-factor's by an identical value and the it ranges from +/-75?? Minor clarification - there are no original B-factors when dealing with map sharpening. The sharpening/blurring B-factors are different (although

Re: [COOT] Map sharpening

2014-06-03 Thread George Devaniranjan
Hi Pete, Thank you for your reply- Just to clarify what you wrote, you mean there is no direct relationship between the B factors I see in a PDB column and the sliding change I make it the map (MTZ) file I generated for the said PDB' Structure Factors ( I downloaded and created a MTZ from)? On

Re: [COOT] Map sharpening

2014-06-03 Thread Paul Emsley
On 02/06/14 21:32, George Devaniranjan wrote: Hi COOT users, I was looking at the COOT tutorial and saw the following explanation: /*It can be educational (even useful at lower resolutions) to sharpen or blur a map. This can be achieved with the sharpening tool Calculate - Map Sharpening

[COOT] Map sharpening

2014-06-02 Thread George Devaniranjan
Hi COOT users, I was looking at the COOT tutorial and saw the following explanation: *It can be educational (even useful at lower resolutions) to sharpen or blur a map. This can be achieved with the sharpening tool Calculate - Map Sharpening By default, the maximum and minimum sharpness is

[COOT] map sharpening

2012-11-19 Thread Chang Xtal
Dear all, Greetings. I have a question about the Map Sharpening function in Coot. Does anyone know how is the map sharpening been implemented in Coot? Or what exactly is this function doing to the election density? How does it scales the intensity and what columns in the mtz file has been