Last change
on this file since 4 was
4,
checked in by zhangj, 10 years ago
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Initial import--MML version from SOLEIL@2013
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File size:
1.1 KB
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Rev | Line | |
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[4] | 1 | function varargout = plotbeta(varargin) |
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| 2 | %PLOTBETA plots UNCOUPLED! beta-functions |
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| 3 | % PLOTBETA(RING) calculates beta functions of the lattice RING |
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| 4 | % PLOTBETA with no argumnts uses THERING as the default lattice |
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| 5 | % Note: PLOTBETA uses FINDORBIT4 and LINOPT which assume a lattice |
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| 6 | % with NO accelerating cavities and NO radiation |
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| 7 | % |
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| 8 | % See also PLOTCOD |
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| 9 | global THERING |
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| 10 | if nargin == 0 |
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| 11 | RING = THERING; |
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| 12 | else |
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| 13 | RING = varargin{1}; |
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| 14 | end |
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| 15 | |
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| 16 | L = length(RING); |
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| 17 | spos = findspos(RING,1:L+1); |
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| 18 | |
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| 19 | [TD, tune] = twissring(RING,0,1:(length(RING)+1)); |
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| 20 | BETA = cat(1,TD.beta); |
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| 21 | S = cat(1,TD.SPos); |
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| 22 | |
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| 23 | disp(tune) |
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| 24 | |
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| 25 | if nargin > 1 & ishandle(varargin{2}) |
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| 26 | figure(varargin{2}); |
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| 27 | else |
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| 28 | figure |
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| 29 | end |
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| 30 | % plot betax and betay in two subplots |
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| 31 | |
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| 32 | subplot(2,1,1) |
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| 33 | plot(S,BETA(:,1),'.-b'); |
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| 34 | |
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| 35 | A = axis; |
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| 36 | A(1) = 0; |
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| 37 | A(2) = S(end); |
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| 38 | axis(A); |
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| 39 | %xlabel('s - position [m]'); |
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| 40 | ylabel('\beta_x [m]','Interpreter', 'Tex'); |
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| 41 | grid on |
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| 42 | |
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| 43 | |
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| 44 | title('\beta-functions','Interpreter', 'Tex'); |
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| 45 | |
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| 46 | subplot(2,1,2) |
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| 47 | plot(S,BETA(:,2),'.-r'); |
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| 48 | % Set the same horizontal scale as beta x plot |
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| 49 | B = axis; |
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| 50 | axis([A(1:2) B(3:4)]); |
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| 51 | xlabel('s - position [m]'); |
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| 52 | ylabel('\beta_y [m]','Interpreter', 'Tex'); |
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| 53 | grid on |
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