Teilchenbewegungen in el./magn. Feldern (Visualisierung)

D.3 solvercontrol MATLAB
OmegaC0 = charge/mass*B0; % Gyrationsfrequenz
tspan = [0 nLarmor*OmegaC0*(2*pi)]; % Zeit ueber die entwickelt werden soll
y0 = [
% Startkoordinaten und Geschwindigkeiten
xposv
% x
yposv
% y
zposv
% z
velx*velscala % vx
vely*velscala % vy
velz*velscala % vz
];
options = odeset(’Vectorized’,’on’);
D.3 solvercontrol
function varargout = solvercontrol(varargin)
% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
% BEGIN HEAD (nicht aendern)
% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
% Initialisierung des GUI und der mit ihm verbundenen Callbacks
gui_Singleton = 1;
gui_State = struct(’gui_Name’, mfilename, ...
’gui_Singleton’, gui_Singleton, ...
’gui_OpeningFcn’, @solvercontrol_OpeningFcn, ...
’gui_OutputFcn’, @solvercontrol_OutputFcn, ...
’gui_LayoutFcn’, [] , ...
’gui_Callback’, []);
if nargin & isstr(varargin{1})
gui_State.gui_Callback = str2func(varargin{1});
end
if nargout
[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
gui_mainfcn(gui_State, varargin{:});
end
% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
% ENDE HEAD (nicht aendern)
% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Patrick Daum, University of Osnabrueck
%
% (C) Version 1.0, 30-August-2004.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% SOLVERCONTROL steuert die einzelnen Optionen, die den ODE Solvern uebergeben
% werden koennen
% globale Variablen definieren
global default_aTol default_reTol
% Initialisierung der globalen Variablen, diese kommen zwar in particles.m schon
% vor, sind aber hier zur Absicherung nochmals als eigene Default Werte
% deklariert, des weiteren dienen diese als Eintragsstring
default_aTol = ’1.e-10’;
default_reTol = ’1.e-3’;
function solvercontrol_OpeningFcn(hObject, eventdata, handles, varargin)
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