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// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) INRIA
// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution. The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
function [X,Y]=checkXYPair(typeOfPlot,x,y,current_figure,cur_draw_mode)
ok=%F;
if type(y)==13 // If y is a function
f=y;
if and(size(x)~=1) // then x *must* be a vector
ResetFigureDDM(current_figure, cur_draw_mode)
error(msprintf(gettext("%s: Wrong size for input argument #%d: A vector expected.\n"),typeOfPlot, 2));
return;
end
t=x(:); // to ensure that t is a column vector
[nArgOut,vectInput]=check2dFun(typeOfPlot,f,t,current_figure,cur_draw_mode);
if nArgOut==1
X=t;
if vectInput
Y=f(t);
else
Y=zeros(length(t),1);
for i=1:length(t)
Y(i)=f(t(i));
end
end
elseif nArgOut==2
if vectInput
[X,Y]=f(t);
else
X=zeros(length(t),1);
Y=zeros(length(t),1);
for i=1:length(t)
// CANNOT DO THE SAME WITH X(i) and Y(i)
// instead of xt and yt (scilab parser sees the stuff
// as a comparison)
[xt,yt]=f(t(i));
X(i)=xt;Y(i)=yt;
end
end
end
else // "classical" case
X=x;
Y=y;
XScal = isscalar(X);
YScal = isscalar(Y);
transposeX = %f;
transposeY = %f;
if size(X,1)==1 & ~XScal, X=X', transposeX = %t; end; // Transpose the row vectors,
if size(Y,1)==1 & ~YScal, Y=Y', transposeY = %t; end; // but no need to transpose scalars.
if transposeX == ~transposeY then
if transposeX == %t then
warning(_("Transposing row vector X to get compatible dimensions"));
else
warning(_("Transposing row vector Y to get compatible dimensions"));
end
end
if (size(X)==[0 0])
ok=%F
ResetFigureDDM(current_figure, cur_draw_mode)
error(msprintf(gettext("%s: Wrong size for input argument #%d: A non empty matrix expected.\n"),typeOfPlot, 2));
return;
end
if (size(Y)==[0 0])
ok=%F
ResetFigureDDM(current_figure, cur_draw_mode)
error(msprintf(gettext("%s: Wrong size for input argument #%d: A non empty matrix expected.\n"),typeOfPlot, 3));
return;
end
if and(size(X)==size(Y)) then
// same size for X and Y
ok=%T;
return;
end
if (size(X,2)==1) & (size(Y,1)==size(X,1))
// X is a vector
ok=%T;
return;
end
if (size(X,2)==1) & (size(Y,2)==size(X,1))
// X is a column vector and Y has as many columns as X has rows.
// Y cannot be a square matrix here, because it would have fallen in the previous case (above) and returned.
if ~YScal then
warning(_("Transposing data matrix Y to get compatible dimensions"));
Y=Y';
end
ok=%T;
return;
end
if (size(X,2) == 1) & (size(Y,2) == 1) & (size(Y,1) <> size(X,1)) ...
& (size(Y,1) ~= 1) then
// X and Y are vectors but not of same size
ResetFigureDDM(current_figure, cur_draw_mode)
error(msprintf(gettext("%s: Wrong size for input arguments #%d and #%d: Incompatible dimensions.\n"),typeOfPlot, 2, 3));
return;
end
// new case : plot(MAT4x4,[1 2 3 4]) HERE Y is a vector and X a matrix
// Here Y is always a column vector
// extend y to be a 4x4 matrix defined as [1 1 1 1;2 2 2 2;3 3 3 3;4 4 4 4]
if or(size(Y) == 1) then
if size(X,1) == size(Y,1) then
y=Y;
elseif size(X,1) == size(Y,2) & ~YScal then
// Y has as many columns as X has rows. Transpose Y to fit X.
warning(_("Transposing data matrix Y to get compatible dimensions"));
y=Y(:);
elseif size(X,2) == size(Y,1) & ~YScal & ~XScal then
// Y has as many rows as X has columns. Transpose X to fit Y.
warning(_("Transposing column vector X to get row vector"));
X=X';
y=Y(:);
elseif size(X,2) == size(Y,2) then
y=Y;
else
ResetFigureDDM(current_figure, cur_draw_mode)
error(msprintf(gettext("%s: Wrong size for input arguments #%d and #%d: Incompatible dimensions.\n"),typeOfPlot,2, 3));
return;
end
// concatenante y in columns
Y=y(:,ones(1,size(X,2)));
ok=%T;
return;
end
if ~ok
ResetFigureDDM(current_figure, cur_draw_mode)
error(msprintf(gettext("%s: Wrong size for input arguments #%d and #%d: Incompatible dimensions.\n"),typeOfPlot, 2, 3));
return;
end
end
// end of checkXYPair
endfunction
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