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authorsiddhu89902017-06-21 15:18:15 +0530
committersiddhu89902017-06-21 15:18:15 +0530
commit9abc909f1a02c7c0262e2d53b13504c7ee324fda (patch)
treeba4dfe442b9735204ede017eb0d20f179a5c4b4e /2.3-1/src/c/interpolation/interp1
parent34bffcd2d147db6733499af5b6f32996d847a733 (diff)
parent5efb98c6773576e39a33df5cfc89979c07031a6a (diff)
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Merged Ukasha's work, code generation for control loop changed
Diffstat (limited to '2.3-1/src/c/interpolation/interp1')
-rw-r--r--2.3-1/src/c/interpolation/interp1/dinterp13a.c75
1 files changed, 75 insertions, 0 deletions
diff --git a/2.3-1/src/c/interpolation/interp1/dinterp13a.c b/2.3-1/src/c/interpolation/interp1/dinterp13a.c
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+++ b/2.3-1/src/c/interpolation/interp1/dinterp13a.c
@@ -0,0 +1,75 @@
+/* Copyright (C) 2016 - IIT Bombay - FOSSEE
+
+ 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-en.txt
+ Author: Ukasha Noor
+ Organization: FOSSEE, IIT Bombay
+ Email: toolbox@scilab.in
+*/
+
+
+#include "interp1.h"
+#include <string.h>
+
+void dinterp13a(double *x,int size1,double *fx,int size2,double *q,int size3,char *ch,int size4,double *out)
+{
+ int i,j,k,f;
+ double a,b;
+ if(strcmp(ch,"linear")==0)
+ {
+ for(i=0;i<size3;i++)
+ {
+ f=0;
+ for(j=0;j<size1;j++)
+ {
+ if(q[i]==x[j])
+ {
+ out[i]=fx[j];
+ f=1;
+ break;
+ }
+ }
+ if(f==0)
+ {
+ j=0;
+ while(q[i]>x[j])
+ {
+ j++;
+ }
+ a=x[j-1];
+ b=x[j];
+ out[i]=fx[j-1]+(q[i]-a)*((fx[j]-fx[j-1])/(b-a));
+ }
+ }
+ }
+ else if(strcmp(ch,"nearest")==0)
+ {
+ for(i=0;i<size3;i++)
+ {
+ f=0;
+ for(j=0;j<size1;j++)
+ {
+ if(q[i]==x[j])
+ {
+ out[i]=fx[j];
+ f=1;
+ break;
+ }
+ }
+ if(f==0)
+ {
+ j=0;
+ while(q[i]>x[j])
+ {
+ j++;
+ }
+ out[i]=fx[j];
+ }
+ }
+ }
+}
+
+