From e4f56a32d01350b09212172a509d34d9411a0d01 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?IOhannes=20m=20zm=C3=B6lnig?=
 <zmoelnig@users.sourceforge.net>
Date: Mon, 27 Aug 2012 15:04:59 +0000
Subject: read list 'entry' type

svn path=/trunk/externals/iem/iemmatrix/; revision=16177
---
 src/mtx_qhull/vectors.c | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

(limited to 'src/mtx_qhull/vectors.c')

diff --git a/src/mtx_qhull/vectors.c b/src/mtx_qhull/vectors.c
index d9d3bd0..655ed94 100644
--- a/src/mtx_qhull/vectors.c
+++ b/src/mtx_qhull/vectors.c
@@ -172,7 +172,8 @@ vector_t averageListedPoints(const points_t points, const list_t list) {
     index_t i;
     vector_t m = initVector(0.0f, 0.0f, 0.0f);
     for (i=0; i<getLength(list); i++) {
-        m=addVectors(getPoint(points,getEntry(list,i)),m);
+      entry_t e=getEntry(list,i);
+      m=addVectors(getPoint(points,entry_getIndex(&e)),m);
     }
     m=scaleVector(m,1.0f/((float)getLength(list)));
     return m;
@@ -184,10 +185,12 @@ vector_t normalOfListedPoints(const points_t points, const list_t list) {
     vector_t d1,d2,c;
     index_t i;
     for (i=1; i<=getLength(list); i++) {
-        d1=subtractVectors(getPoint(points,getEntry(list,i-1)),m);
-        d2=subtractVectors(getPoint(points,getEntry(list,i%getLength(list))),m);
-        c=crossProduct(d1,d2);
-        n=addVectors(c,n);
+      entry_t e=getEntry(list,i-1);
+      d1=subtractVectors(getPoint(points,entry_getIndex(&e)),m);
+      e=getEntry(list,i%getLength(list));
+      d2=subtractVectors(getPoint(points,entry_getIndex(&e)),m);
+      c=crossProduct(d1,d2);
+      n=addVectors(c,n);
     }
     return n;
 }
@@ -198,9 +201,12 @@ vector_t directionOfListedPoints(const points_t points, const list_t list) {
     vector_t d,c;
     index_t i;
     for (i=1; i<getLength(list); i++) {
-        d=subtractVectors(getPoint(points,getEntry(list,i-1)),
-                getPoint(points,getEntry(list,i)));
-        dir=addVectors(d,dir);
+      entry_t e1=getEntry(list,i-1);
+      entry_t e2=getEntry(list,i  );
+
+      d=subtractVectors(getPoint(points,entry_getIndex(&e1)),
+                        getPoint(points,entry_getIndex(&e2)));
+      dir=addVectors(d,dir);
     }
     return dir;
 }
-- 
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