From 04be907cbba161af7eda231f8a6a1856fc3a6042 Mon Sep 17 00:00:00 2001
From: Franz Zotter <fzotter@users.sourceforge.net>
Date: Sat, 25 Aug 2012 22:51:30 +0000
Subject: improved deterministic behavior of [mtx_qhull], however planar
 polygons do not fully work yet.

svn path=/trunk/externals/iem/iemmatrix/; revision=16172
---
 src/mtx_qhull/vectors.h | 36 +++++++++++++++++++++++++++---------
 1 file changed, 27 insertions(+), 9 deletions(-)

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

diff --git a/src/mtx_qhull/vectors.h b/src/mtx_qhull/vectors.h
index fadb370..06a302a 100644
--- a/src/mtx_qhull/vectors.h
+++ b/src/mtx_qhull/vectors.h
@@ -1,9 +1,9 @@
-#ifndef QHULL_VECTORS_H
-#define QHULL_VECTORS_H
-
-#include <sys/types.h>
+#ifndef QHULL_VECTOR_H
+#define QHULL_VECTOR_H 
 #include "list.h"
-
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
 typedef struct vec_ {
     float c[3];
 } vector_t;
@@ -18,31 +18,49 @@ typedef struct plane_ {
     vector_t point;
 } plane_t;
 
+typedef struct line_ {
+    vector_t direction;
+    vector_t point;
+} line_t;
+
+
 vector_t initVector (float x, float y, float z);
+float lengthVector(vector_t v);
 vector_t normalizeVector(vector_t v);
 
 plane_t initPlane (vector_t normal, vector_t point);
+line_t initLine (vector_t direction, vector_t point);
 
 points_t initPoints (const float *x,
         const float *y, const float *z, 
         size_t num_points);
 void freePoints (points_t *points);
+size_t getNumPoints(const points_t points);
+vector_t getPoint(const points_t points, const index_t index);
 
 vector_t crossProduct (vector_t v1, vector_t v2);
 float innerProduct (vector_t v1, vector_t v2);
+float distancePointPoint(const vector_t a, const vector_t b);
 float distancePointPlane (vector_t point, plane_t plane);
+float distancePointLine (vector_t point, line_t line);
+float distancePointLineOnPlane (vector_t point, 
+        line_t line, plane_t plane);
 vector_t addVectors(vector_t v1, vector_t v2);
 vector_t subtractVectors(vector_t v1, vector_t v2);
 vector_t scaleVector(vector_t v1, float f);
-vector_t averagePoints(points_t points);
+/*vector_t averagePoints(points_t points);
 vector_t normalOfPoints(points_t points);
-plane_t planeFromPoints(points_t points);
+plane_t planeFromPoints(points_t points);*/
+plane_t planeFromThreePoints (vector_t a, vector_t b, vector_t c);
+line_t lineFromTwoPoints (vector_t a, vector_t b);
 
 vector_t averageListedPoints(points_t points, list_t list);
 vector_t normalOfListedPoints(points_t points, list_t list);
+vector_t directionOfListedPoints(points_t points, list_t list);
 plane_t planeFromListedPoints(points_t points, list_t list);
+line_t lineFromListedPoints(points_t points, list_t list);
 
 void printPlane(plane_t p);
+void printLine(line_t l);
 void printVector(vector_t v);
-
-#endif /* QHULL_VECTORS_H */
+#endif /* QHULL_VECTOR_H */
-- 
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