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// Scicos
//
// Copyright (C) INRIA - METALAU Project <scicos@inria.fr>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// See the file ../license.txt
//
function [x,y,typ]=LOOKUP2D(job,arg1,arg2)
// Copyright INRIA
x=[];
y=[];
typ=[];
select job
case "set" then
x=arg1
model=arg1.model
graphics=arg1.graphics
exprs=graphics.exprs
ok=%f;
SaveExit=%f
while %t do
Ask_again=%f
[ok,xx,yy,zz,Method,graf,exprs]=scicos_getvalue("2D Lookup table parameters",["Row index input values";"Column index input values";"Table data";"Lookup method(1..5)";"Launch graphic window(y/n)?"],list("vec",-1,"vec",-1,"mat",[-1,-1],"vec",1,"str",1),exprs)
// 1 : Interpolation-extrapolation (Bilinear)
// 2 : Interpolation_endvalues
// 3 : use input nearest
// 4 : use input below
// 5 : use input above
// 6 : Interpolation-extrapolation (linear)
if ~ok then
break;
end
mtd=int(Method);
if mtd<1 then
mtd=1;
end;
if mtd>6 then
mtd=6;
end;
if graf<>"y" & graf<>"Y" then
graf="n";
end
exprs(5)="n";// exprs.graf='n'
exprs(4)=sci2exp(mtd);// pour le cas methode>7 | method<0
METHOD=getmethod(mtd);
if ~Ask_again then
xx=xx(:);
yy=yy(:);
[nx,mx]=size(xx);
[ny,my]=size(yy);
[nz,mz]=size(zz);
if ((nx<=1)|(ny<=1)) then,
x_message("input row/column data size should be greater than one");
Ask_again=%t;
end
if ~((nx==nz)&(ny==mz)) then,
x_message("incompatible size of x and y");
Ask_again=%t;
end
[ok]=test_increasing(xx);
if (~ok) then
x_message("Row input values must be monotonically increasing");
Ask_again=%t;
end
[ok]=test_increasing(yy);
if (~ok) then
x_message("Column input values must be monotonically increasing");
Ask_again=%t;
end
end
if ~Ask_again then
if (graf=="Y" | graf=="y") then
gh=gcf();
curwin=gh.figure_id;
save_curwin=curwin;
gh2=scf();
curwin=max(winsid())+1;
plot3d(xx,yy,zz,35,45,"X@Y@Z",[5,2,4]) ;
curwin=save_curwin;
gh.figure_id=curwin;
end
model.rpar=[xx(:);yy(:);zz(:)]
model.ipar=[nx;ny;mtd]
graphics.exprs=exprs;
x.model=model
x.graphics=graphics
break
end
end
//======================================================================
case "define" then
model=scicos_model();
xx=[1:4]
yy=[1:3]
zz=[4,5,6;16,19,20;10,18,23;6, 3,-1];
Method=1;
Graf="n"
Nx=length(xx);
Ny=length(yy);
model.sim=list("lookup2d",4)
model.in=[1;1]
model.out=1
model.rpar=[xx(:);yy(:);zz(:)]
model.ipar=[Nx;Ny;Method]
model.blocktype="c"
model.dep_ut=[%t %f]
exprs=list(strcat(sci2exp(xx)),strcat(sci2exp(yy)),strcat(sci2exp(zz)),sci2exp(Method),Graf)
gr_i=[]
x=standard_define([2.5 2],model,exprs,gr_i)
end
endfunction
function [ok]=test_increasing(xx)
ok=%f
[nx,mx]=size(xx);// adjusting the x and y size
for i=1:mx
if (xx(i)<>xx(i)) then
xinfo("x contains no data in x("+string(i)+")");
return;
end
end
for i=1:mx-1
if (xx(i)>xx(i+1)) then
return;
end
end
ok=%t
endfunction
//============================
function METHOD=getmethod(order)
select order
case 1 then, METHOD="Interpolation-extrapolation(biliniear)"
case 2 then, METHOD="Interpolation_endvalues"
case 3 then, METHOD="use input nearest"
case 4 then, METHOD="use input below"
case 5 then, METHOD="use input above"
case 6 then, METHOD="Interpolation-extrapolation"
end
endfunction
//=========================================================
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