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function CSX = SetExcitationWeight(CSX, name, weight)
% function CSX = SetExcitationWeight(CSX, name, weight)
%
% Define weighting functions for x-, y- and z-direction of excitation
%
% The functions can use the variables:
% x,y,z
% rho for the distance to z-axis
% r for the distance to origin
% a for alpha (as in cylindircal and spherical coord systems)
% t for theta (as in the spherical coord system
%
% all these variables are not weighted with the drawing unit defined by
% the grid
%
% example:
% start=[0 0 0];
% stop=[width height 0];
% CSX = AddExcitation(CSX,'excite',0,[1 1 0]);
% weight{1} = '2*cos(0.0031416*x)*sin(0.0062832*y)';
% weight{2} = '1*sin(0.0031416*x)*cos(0.0062832*y)';
% weight{3} = 0;
% CSX = SetExcitationWeight(CSX,'excite',weight);
% CSX = AddBox(CSX,'excite',0 ,start,stop);
%
% See also AddExcitation, InitCSX, DefineRectGrid
%
% CSXCAD matlab interface
% -----------------------
% author: Thorsten Liebig
if ~isfield(CSX,'Properties')
error('CSXCAD::SetExcitationWeight: no properties not found');
end
if ~isfield(CSX.Properties,'Excitation')
error('CSXCAD::SetExcitationWeight: no excitation properties found');
end
pos=0;
for n=1:numel(CSX.Properties.Excitation)
if strcmp(CSX.Properties.Excitation{n}.ATTRIBUTE.Name, name)
pos=n;
end
end
if (pos==0)
error('CSXCAD::SetExcitationWeight: property not found');
return;
end
CSX.Properties.Excitation{pos}.Weight.ATTRIBUTE.X = weight{1};
CSX.Properties.Excitation{pos}.Weight.ATTRIBUTE.Y = weight{2};
CSX.Properties.Excitation{pos}.Weight.ATTRIBUTE.Z = weight{3};
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