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-rw-r--r--src/mtx_qhull.c13
-rw-r--r--src/mtx_qhull/list.c1
-rw-r--r--src/mtx_qhull/list.h5
-rw-r--r--src/mtx_qhull/test.obj608
-rw-r--r--src/mtx_qhull/test_list.c2
-rw-r--r--src/mtx_qhull/test_write_conv_hull_obj.pd310
-rw-r--r--src/mtx_qhull/vectors.c139
-rw-r--r--src/mtx_qhull/vectors.h36
-rw-r--r--src/mtx_qhull/zhull.c323
-rw-r--r--src/mtx_qhull/zhull.h17
10 files changed, 1069 insertions, 385 deletions
diff --git a/src/mtx_qhull.c b/src/mtx_qhull.c
index 7223b4b..34a4891 100644
--- a/src/mtx_qhull.c
+++ b/src/mtx_qhull.c
@@ -15,8 +15,6 @@
#include "iemmatrix.h"
#include <stdlib.h>
-#include "mtx_qhull/list.h"
-#include "mtx_qhull/vectors.h"
#include "mtx_qhull/zhull.h"
static t_class *mtx_qhull_class;
@@ -109,14 +107,9 @@ static void mTXQhullMatrix(MTXQhull *xo, t_symbol *s,
SETFLOAT(xo->list,(float)xo->hull_size);
SETFLOAT(xo->list+1,(float)3);
for (i=0; i<xo->hull_size; i++) {
- t_atom*ap=xo->list+2+3*i;
- float f=(float)getEntry(getFacetByIndex(xo->zh->facets,i)->corners,0)+1;
- SETFLOAT(xo->list+2+3*i, (float)getEntry(
- getFacetByIndex(xo->zh->facets,i)->corners,0)+1);
- SETFLOAT(xo->list+3+3*i, (float)getEntry(
- getFacetByIndex(xo->zh->facets,i)->corners,1)+1);
- SETFLOAT(xo->list+4+3*i, (float)getEntry(
- getFacetByIndex(xo->zh->facets,i)->corners,2)+1);
+ SETFLOAT(xo->list+2+3*i, (float)getTriangleCorner(xo->zh,i,0)+1);
+ SETFLOAT(xo->list+3+3*i, (float)getTriangleCorner(xo->zh,i,1)+1);
+ SETFLOAT(xo->list+4+3*i, (float)getTriangleCorner(xo->zh,i,2)+1);
}
outlet_anything(xo->outl, gensym("matrix"),
xo->size, xo->list);
diff --git a/src/mtx_qhull/list.c b/src/mtx_qhull/list.c
index a464ae9..1f8f58b 100644
--- a/src/mtx_qhull/list.c
+++ b/src/mtx_qhull/list.c
@@ -1,4 +1,3 @@
-
#include "list.h"
#include <stdlib.h>
#include <stdio.h>
diff --git a/src/mtx_qhull/list.h b/src/mtx_qhull/list.h
index dfccede..1a98256 100644
--- a/src/mtx_qhull/list.h
+++ b/src/mtx_qhull/list.h
@@ -1,16 +1,18 @@
#ifndef QHULL_LIST_H
#define QHULL_LIST_H
+#include <stdio.h>
+#include <stdlib.h>
#include <sys/types.h>
typedef long int entry_t;
typedef long int index_t;
-
typedef struct list_ {
entry_t *entries;
size_t length;
} list_t;
+
// memory things:
list_t emptyList(void);
void freeList(list_t *list);
@@ -38,6 +40,7 @@ int inList(const entry_t entry, const list_t list);
int notInList(const entry_t entry, const list_t list);
list_t findValueListInList(const list_t value_list, const list_t list);
entry_t findValueInList(const entry_t entry, const list_t list);
+void uniquefyListEntries(list_t *list);
void printList(const list_t list);
#endif /* QHULL_LIST_H */
diff --git a/src/mtx_qhull/test.obj b/src/mtx_qhull/test.obj
index 4b4e602..27d5b09 100644
--- a/src/mtx_qhull/test.obj
+++ b/src/mtx_qhull/test.obj
@@ -1,72 +1,536 @@
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-v -0.566714 -0.600261 1.25241
-v 0.581676 -0.550909 1.26813
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-f 1 3 6
-f 1 3 4
-f 13 2 1
-f 1 2 3
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diff --git a/src/mtx_qhull/test_list.c b/src/mtx_qhull/test_list.c
index 4ddddde..9ac5924 100644
--- a/src/mtx_qhull/test_list.c
+++ b/src/mtx_qhull/test_list.c
@@ -6,7 +6,7 @@ int main(char **argv, int argc) {
list_t l1=emptyList();
list_t l2=emptyList();
list_t l3=emptyList();
- int x[]={0, 2, 4, 6};
+ entry_t x[]={0, 2, 4, 6};
printf("empty list:\n");
printList(l1);
diff --git a/src/mtx_qhull/test_write_conv_hull_obj.pd b/src/mtx_qhull/test_write_conv_hull_obj.pd
index d27370d..f73dff1 100644
--- a/src/mtx_qhull/test_write_conv_hull_obj.pd
+++ b/src/mtx_qhull/test_write_conv_hull_obj.pd
@@ -1,6 +1,4 @@
-#N canvas 534 0 850 668 10;
-#X obj 595 205 convhull 0.001;
-#X obj 595 176 t a a;
+#N canvas 368 486 824 447 10;
#N canvas 69 11 539 331 writeobject 0;
#X obj 163 270 textfile;
#X obj 163 161 mtx;
@@ -48,7 +46,7 @@
#X connect 17 0 0 0;
#X connect 18 0 11 0;
#X connect 19 0 12 0;
-#X restore 116 490 pd writeobject;
+#X restore 217 444 pd writeobject;
#N canvas 0 22 450 300 gemwin 0;
#X obj 132 136 gemwin;
#X obj 67 89 outlet;
@@ -71,131 +69,187 @@
#X connect 7 0 0 0;
#X connect 8 0 0 0;
#X connect 9 0 8 0;
-#X restore 556 423 pd gemwin;
-#X msg 556 404 destroy;
-#X obj 668 404 gemhead;
-#X obj 668 423 world_light;
-#X obj 362 -1 gemhead;
-#X obj 393 151 model;
-#X floatatom 377 79 5 0 0 0 - - -;
-#X floatatom 420 80 5 0 0 0 - - -;
-#X floatatom 460 80 5 0 0 0 - - -;
-#X msg 17 196 open test.obj;
-#X msg 500 97 rescale 0;
-#X obj 364 38 color 0.9 0.9 0.9;
-#X obj 595 227 extra_point;
-#X obj 209 467 mtx_* 1.5;
-#X obj 363 18 ortho;
-#X obj 488 -3 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0
+#X restore 376 128 pd gemwin;
+#X msg 376 109 destroy;
+#X obj 488 109 gemhead;
+#X obj 494 129 world_light;
+#X obj -11 319 gemhead;
+#X obj 79 452 model;
+#X floatatom 6 382 5 0 0 0 - - -;
+#X floatatom 49 383 5 0 0 0 - - -;
+#X floatatom 89 383 5 0 0 0 - - -;
+#X msg 33 333 open test.obj;
+#X msg 129 400 rescale 0;
+#X obj -9 358 color 0.9 0.9 0.9;
+#X obj 335 426 mtx_* 1.5;
+#X obj -10 338 ortho;
+#X obj 137 309 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0
1;
-#X obj 485 38 f;
-#X obj 540 38 % 360;
-#X obj 480 17 metro 50;
-#X msg 360 176 smooth 0;
-#X obj 595 266 convhull 0.001;
-#X obj 595 248 t a a;
-#X obj 85 411 mtx;
-#X obj 84 446 mtx_slice;
-#X msg 123 425 1 1 \$1 end;
-#X floatatom 18 250 5 0 0 0 - - -;
-#X obj 221 440 mtx;
-#X obj -7 284 t b b f b;
-#X obj 125 394 mtx_size;
-#X obj 101 375 t a a;
-#X msg 184 396 set \$1;
-#X obj 355 101 rotateXYZ -74 0 0;
-#X obj 513 38 + 3;
-#X obj 360 128 t b a;
-#X obj 113 332 convhull 0.001;
-#X obj 159 229 t a a;
-#X msg 105 72 4 40;
-#X msg 109 92 5 67;
-#X msg 103 50 3 26;
-#X msg 101 137 read designsN/N\$1_\$2.mtx \, bang;
-#X obj 60 135 mtx;
-#X obj 183 280 demux;
-#X obj 210 213 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 1
+#X obj 112 358 f;
+#X obj 167 358 % 360;
+#X obj 129 329 metro 50;
+#X msg 9 452 smooth 0;
+#X obj 213 386 mtx;
+#X obj 212 421 mtx_slice;
+#X msg 251 400 1 1 \$1 end;
+#X floatatom 73 276 5 0 0 0 - - -;
+#X obj 334 402 mtx;
+#X obj 113 277 t b b f b;
+#X obj 253 369 mtx_size;
+#X obj 229 350 t a a;
+#X msg 312 371 set \$1;
+#X obj -16 404 rotateXYZ -74 0 0;
+#X obj 140 358 + 3;
+#X obj 46 429 t b a;
+#X obj 335 317 convhull 0.001;
+#X obj 231 271 t a a;
+#X msg 151 83 4 40;
+#X msg 188 66 5 67;
+#X msg 149 67 3 26;
+#X msg 43 124 read designsN/N\$1_\$2.mtx \, bang;
+#X obj 41 205 mtx;
+#X obj 236 294 demux;
+#X obj 123 182 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0
1;
-#X obj 249 237 t b f;
-#X obj 60 165 t b a b;
-#X msg 111 111 9 180;
-#X msg 97 1 1.5 6;
-#X msg 104 27 2 14;
-#X msg 181 43 2.5 12;
-#X floatatom 323 280 5 0 0 0 - - -;
-#X obj 327 301 t b f;
-#X obj 416 257 mtx_rand;
-#X msg 427 235 200 3;
-#X obj 245 336 mtx_qhull 500;
-#X msg 175 77 read designsN/dode.mtx \, bang;
-#X msg 221 167 read Rls.mtx \, bang;
-#X connect 0 0 15 0;
-#X connect 1 0 0 0;
-#X connect 1 1 15 1;
+#X obj 71 180 t b f;
+#X msg 190 85 9 180;
+#X msg 48 70 1.5 6;
+#X msg 97 66 2 14;
+#X msg 46 88 2.5 12;
+#X floatatom 396 171 5 0 0 0 - - -;
+#X obj 378 199 t b f;
+#X obj -18 163 mtx_rand;
+#X msg -7 141 200 3;
+#X obj 237 319 mtx_qhull 500;
+#X msg -123 202 read Rls.mtx \, bang;
+#X msg 68 150 matrix 4 3 0 0 0 1 0 0 0 1 0 1 1 0;
+#X msg 100 85 2.5 20;
+#X obj 107 239 mtx_size;
+#X obj 42 235 t b a a;
+#X obj 175 238 * 2;
+#X obj 207 238 - 4;
+#X floatatom 236 237 5 0 0 0 - - -;
+#X obj 396 64 mtx_print;
+#X msg 278 37 matrix 8 3 0 0 0 0 0 1 0 1 0 0 1 1 1 0 0 1 0 1 1 1 0
+1 1 1;
+#X obj 293 74 mtx_roll -1;
+#X obj 388 256 mtx_print;
+#N canvas 0 0 624 397 makepolygon 0;
+#X obj 75 114 mtx_:;
+#X obj 80 44 t f f;
+#X obj 83 70 - 1;
+#X msg 83 90 0 \$1;
+#X obj 89 139 mtx_./ 1;
+#X obj 87 187 mtx_* 3.14159;
+#X obj 92 163 mtx_* 2;
+#X obj 94 208 t a a a;
+#X obj 150 210 mtx_size;
+#X msg 218 208 1 \$1;
+#X obj 258 208 mtx_zeros;
+#X obj 103 238 mtx_cos;
+#X obj 136 265 mtx_sin;
+#X obj 143 341 mtx_transpose;
+#X obj 147 363 outlet;
+#X obj 114 17 inlet;
+#X obj 279 340 mtx_print;
+#X obj 135 317 mtx_concat col;
+#X obj 173 291 mtx_concat col;
+#X msg 68 19 5;
+#X connect 0 0 4 0;
+#X connect 1 0 2 0;
+#X connect 1 1 4 1;
+#X connect 2 0 3 0;
+#X connect 3 0 0 0;
+#X connect 4 0 6 0;
+#X connect 5 0 7 0;
+#X connect 6 0 5 0;
+#X connect 7 0 11 0;
+#X connect 7 1 12 0;
+#X connect 7 2 8 0;
+#X connect 8 1 9 0;
+#X connect 9 0 10 0;
+#X connect 10 0 18 1;
+#X connect 11 0 17 0;
+#X connect 12 0 18 0;
+#X connect 13 0 14 0;
+#X connect 13 0 16 0;
+#X connect 15 0 1 0;
+#X connect 17 0 13 0;
+#X connect 18 0 17 1;
+#X connect 19 0 1 0;
+#X restore 251 176 pd makepolygon;
+#X msg 323 150 5;
+#X connect 1 0 2 0;
+#X connect 2 0 1 0;
#X connect 3 0 4 0;
-#X connect 4 0 3 0;
-#X connect 5 0 6 0;
-#X connect 7 0 17 0;
-#X connect 9 0 34 1;
-#X connect 10 0 34 2;
-#X connect 11 0 34 3;
-#X connect 12 0 36 0;
-#X connect 13 0 8 0;
-#X connect 14 0 34 0;
-#X connect 15 0 24 0;
-#X connect 16 0 2 1;
-#X connect 17 0 14 0;
-#X connect 18 0 21 0;
-#X connect 19 0 11 0;
-#X connect 19 0 35 0;
-#X connect 20 0 19 1;
-#X connect 21 0 19 0;
-#X connect 22 0 8 0;
-#X connect 23 0 32 0;
-#X connect 24 0 23 0;
-#X connect 24 1 29 0;
-#X connect 25 0 26 0;
-#X connect 26 0 2 0;
-#X connect 27 0 26 1;
-#X connect 28 0 30 0;
-#X connect 29 0 16 0;
-#X connect 30 0 12 0;
-#X connect 30 1 25 0;
-#X connect 30 2 27 0;
-#X connect 30 3 29 0;
-#X connect 31 0 27 0;
-#X connect 31 0 33 0;
-#X connect 32 0 25 0;
-#X connect 32 1 31 0;
-#X connect 33 0 28 0;
-#X connect 34 0 8 0;
-#X connect 35 0 20 0;
-#X connect 36 0 22 0;
-#X connect 36 1 8 0;
-#X connect 37 0 32 0;
-#X connect 38 0 44 0;
-#X connect 38 1 29 0;
-#X connect 39 0 42 0;
-#X connect 40 0 42 0;
-#X connect 41 0 42 0;
-#X connect 42 0 43 0;
-#X connect 43 0 47 0;
+#X connect 5 0 14 0;
+#X connect 7 0 29 1;
+#X connect 8 0 29 2;
+#X connect 9 0 29 3;
+#X connect 10 0 31 0;
+#X connect 11 0 6 0;
+#X connect 12 0 29 0;
+#X connect 13 0 0 1;
+#X connect 14 0 12 0;
+#X connect 15 0 18 0;
+#X connect 16 0 9 0;
+#X connect 16 0 30 0;
+#X connect 17 0 16 1;
+#X connect 18 0 16 0;
+#X connect 19 0 6 0;
+#X connect 20 0 21 0;
+#X connect 21 0 0 0;
+#X connect 22 0 21 1;
+#X connect 23 0 25 0;
+#X connect 24 0 13 0;
+#X connect 25 0 10 0;
+#X connect 25 1 20 0;
+#X connect 25 2 22 0;
+#X connect 25 3 24 0;
+#X connect 26 0 22 0;
+#X connect 26 0 28 0;
+#X connect 27 0 20 0;
+#X connect 27 1 26 0;
+#X connect 28 0 23 0;
+#X connect 29 0 6 0;
+#X connect 30 0 17 0;
+#X connect 31 0 19 0;
+#X connect 31 1 6 0;
+#X connect 32 0 27 0;
+#X connect 33 0 39 0;
+#X connect 33 1 24 0;
+#X connect 34 0 37 0;
+#X connect 35 0 37 0;
+#X connect 36 0 37 0;
+#X connect 37 0 38 0;
+#X connect 38 0 55 0;
+#X connect 39 0 50 0;
+#X connect 39 1 32 0;
+#X connect 40 0 41 0;
+#X connect 41 0 38 0;
+#X connect 41 1 39 1;
+#X connect 42 0 37 0;
+#X connect 43 0 37 0;
#X connect 44 0 37 0;
-#X connect 44 1 56 0;
-#X connect 45 0 46 0;
-#X connect 46 0 43 0;
-#X connect 46 1 44 1;
-#X connect 47 0 12 0;
-#X connect 47 1 38 0;
-#X connect 48 0 42 0;
-#X connect 49 0 42 0;
-#X connect 50 0 42 0;
-#X connect 51 0 42 0;
-#X connect 52 0 53 0;
-#X connect 53 0 43 0;
-#X connect 53 1 56 0;
-#X connect 54 0 43 0;
-#X connect 55 0 54 0;
-#X connect 56 0 32 0;
-#X connect 57 0 43 0;
-#X connect 58 0 43 0;
+#X connect 45 0 37 0;
+#X connect 46 0 47 0;
+#X connect 47 0 38 0;
+#X connect 47 1 50 0;
+#X connect 48 0 38 0;
+#X connect 49 0 48 0;
+#X connect 50 0 27 0;
+#X connect 50 0 62 0;
+#X connect 51 0 38 0;
+#X connect 52 0 38 0;
+#X connect 53 0 37 0;
+#X connect 54 0 56 0;
+#X connect 55 0 10 0;
+#X connect 55 1 33 0;
+#X connect 55 2 54 0;
+#X connect 56 0 57 0;
+#X connect 57 0 58 0;
+#X connect 60 0 61 0;
+#X connect 61 0 38 0;
+#X connect 61 0 59 0;
+#X connect 63 0 38 0;
+#X connect 64 0 63 0;
diff --git a/src/mtx_qhull/vectors.c b/src/mtx_qhull/vectors.c
index 6cc3dd8..d9d3bd0 100644
--- a/src/mtx_qhull/vectors.c
+++ b/src/mtx_qhull/vectors.c
@@ -1,7 +1,4 @@
#include "vectors.h"
-#include <math.h>
-#include <stdlib.h>
-#include <stdio.h>
vector_t initVector (float x, float y, float z) {
@@ -9,13 +6,16 @@ vector_t initVector (float x, float y, float z) {
return vec;
}
+float lengthVector(vector_t v) {
+ return sqrtf(v.c[0]*v.c[0]+v.c[1]*v.c[1]+v.c[2]*v.c[2]);
+}
vector_t normalizeVector(vector_t v) {
- float r=sqrtf(v.c[0]*v.c[0]+v.c[1]*v.c[1]+v.c[2]*v.c[2]);
+ float r=lengthVector(v);
v.c[0]/=r;
v.c[1]/=r;
v.c[2]/=r;
return v;
-};
+}
plane_t initPlane (vector_t normal, vector_t point) {
plane_t plane;
@@ -24,6 +24,13 @@ plane_t initPlane (vector_t normal, vector_t point) {
return plane;
}
+line_t initLine (vector_t direction, vector_t point) {
+ line_t line;
+ line.point = point;
+ line.direction = normalizeVector(direction);
+ return line;
+}
+
points_t initPoints (const float *x,
const float *y, const float *z,
size_t num_points) {
@@ -63,11 +70,29 @@ float innerProduct (vector_t v1, vector_t v2) {
return v1.c[0]*v2.c[0] + v1.c[1]*v2.c[1] + v1.c[2]*v2.c[2];
}
+float distancePointPoint(const vector_t a,
+ const vector_t b) {
+ vector_t d=subtractVectors(b,a);
+ return lengthVector(d);
+}
+
float distancePointPlane (vector_t point, plane_t plane) {
return innerProduct(point, plane.normal) -
innerProduct(plane.point, plane.normal);
}
+float distancePointLine (vector_t point, line_t line) {
+ return lengthVector(crossProduct(line.direction,
+ subtractVectors(point,line.point)));
+}
+
+float distancePointLineOnPlane (vector_t point,
+ line_t line, plane_t plane) {
+ vector_t normal_in_plane = normalizeVector(crossProduct(
+ line.direction, plane.normal));
+ return innerProduct(subtractVectors(point,line.point),normal_in_plane);
+}
+
vector_t addVectors(vector_t v1, vector_t v2) {
vector_t v3;
v3.c[0]=v1.c[0]+v2.c[0];
@@ -92,31 +117,113 @@ vector_t scaleVector(vector_t v1, float f) {
return v2;
}
+/*
vector_t averagePoints(points_t points) {
vector_t m = initVector(0.0f, 0.0f, 0.0f);
size_t i;
- for (i=0; i<points.num_points; i++)
- m=addVectors(points.v[i],m);
- m=scaleVector(m,1.0f/((float)points.num_points));
+ for (i=0; i<getNumPoints(points); i++)
+ m=addVectors(getPoint(points,m));
+ m=scaleVector(m,1.0f/((float)getNumPoints(points)));
return m;
}
-
vector_t normalOfPoints(points_t points) {
vector_t m = averagePoints(points);
vector_t n = initVector(0.0f, 0.0f, 0.0f);
size_t i;
- for (i=0; i<points.num_points; i++) {
- n=addVectors(crossProduct(points.v[i],m),n);
+ for (i=0; i<getNumPoints(points); i++) {
+ n=addVectors(crossProduct(getPoint(points,i),m),n);
}
return n;
}
-
plane_t planeFromPoints(points_t points) {
vector_t p=averagePoints(points);
vector_t n=normalOfPoints(points);
plane_t pl=initPlane(n,p);
return pl;
}
+*/
+
+plane_t planeFromThreePoints(const vector_t a,
+ const vector_t b, const vector_t c) {
+ vector_t ab = subtractVectors(b,a);
+ vector_t ac = subtractVectors(c,a);
+ vector_t n = normalizeVector(crossProduct(ab,ac));
+ return initPlane(n,a);
+}
+
+line_t lineFromTwoPoints(const vector_t a,
+ const vector_t b) {
+ vector_t direction = subtractVectors(b,a);
+ return initLine(direction,a);
+}
+
+size_t getNumPoints(const points_t points) {
+ return points.num_points;
+}
+
+vector_t getPoint(const points_t points,
+ const index_t index) {
+ if ((index>=0)&&(index<getNumPoints(points)))
+ return points.v[index];
+ return initVector(0.0f,0.0f,0.0f);
+}
+
+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);
+ }
+ m=scaleVector(m,1.0f/((float)getLength(list)));
+ return m;
+}
+
+vector_t normalOfListedPoints(const points_t points, const list_t list) {
+ vector_t m = averageListedPoints(points,list);
+ vector_t n = initVector(0.0f, 0.0f, 0.0f);
+ 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);
+ }
+ return n;
+}
+
+vector_t directionOfListedPoints(const points_t points, const list_t list) {
+ vector_t m = averageListedPoints(points,list);
+ vector_t dir = initVector(0.0f, 0.0f, 0.0f);
+ 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);
+ }
+ return dir;
+}
+
+plane_t planeFromListedPoints(const points_t points, const list_t list) {
+ vector_t p=averageListedPoints(points,list);
+ vector_t n=normalOfListedPoints(points,list);
+ plane_t pl=initPlane(n,p);
+ return pl;
+}
+
+
+
+line_t lineFromListedPoints(const points_t points, const list_t list) {
+ vector_t p=averageListedPoints(points,list);
+ vector_t n=directionOfListedPoints(points,list);
+ line_t l=initLine(n,p);
+ return l;
+}
+
+void printVector(vector_t v) {
+ printf("[%5.2f,%5.2f,%5.2f], ", v.c[0],v.c[1],v.c[2]);
+}
void printPlane(plane_t p) {
printf("n=");
@@ -125,7 +232,11 @@ void printPlane(plane_t p) {
printVector(p.point);
}
-void printVector(vector_t v) {
- printf("[%5.2f,%5.2f,%5.2f], ", v.c[0],v.c[1],v.c[2]);
+void printLine(line_t l) {
+ printf("d=");
+ printVector(l.direction);
+ printf(", p=");
+ printVector(l.point);
}
+
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 */
diff --git a/src/mtx_qhull/zhull.c b/src/mtx_qhull/zhull.c
index 58f636e..5730160 100644
--- a/src/mtx_qhull/zhull.c
+++ b/src/mtx_qhull/zhull.c
@@ -1,52 +1,12 @@
#include "zhull.h"
-
-#include <stdlib.h>
-#include <stdio.h>
-
-#define TOL 1e-7
-#define MAXIT 1000000
-
-
-
-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(points.v[getEntry(list,i)],m);
- }
- m=scaleVector(m,1.0f/((float)getLength(list)));
- return m;
-}
-
-vector_t normalOfListedPoints(const points_t points, const list_t list) {
- vector_t m = averageListedPoints(points,list);
- vector_t n = initVector(0.0f, 0.0f, 0.0f);
- vector_t d1,d2,c;
- index_t i;
- for (i=1; i<getLength(list); i++) {
- d1=subtractVectors(points.v[getEntry(list,i-1)],m);
- d2=subtractVectors(points.v[getEntry(list,i)],m);
- c=crossProduct(d1,d2);
- n=addVectors(c,n);
- }
- return n;
-}
-
-plane_t planeFromListedPoints(const points_t points, const list_t list) {
- vector_t p=averageListedPoints(points,list);
- vector_t n=normalOfListedPoints(points,list);
- plane_t pl=initPlane(n,p);
- return pl;
-}
-
/* facets, memory things */
void freeFacet(facet_t *facet) {
-/* printf("deleting facet %li\n",facet);
- printList(facet->corners);
- printList(facet->outsideset);
- printList(facet->insideset);
- printList(facet->neighbors);*/
+ /* printf("deleting facet %li\n",facet);
+ printList(facet->corners);
+ printList(facet->outsideset);
+ printList(facet->insideset);
+ printList(facet->neighbors);*/
freeList(&(facet->corners));
freeList(&(facet->outsideset));
freeList(&(facet->insideset));
@@ -67,9 +27,9 @@ list_t appendNewFacets(zhull_t * const zh, const size_t num_facets) {
new_facet->insideset=emptyList();
new_facet->maxdistance=0;
new_facet->farthest_outside_point=0;
-// printf("%li, %li\n", new_facet, (entry_t)new_facet);
+ // printf("%li, %li\n", new_facet, (entry_t)new_facet);
setEntry(new_facets,i,(entry_t)new_facet);
-// printf("created facet %li\n",new_facet);
+ // printf("created facet %li\n",new_facet);
}
appendListToList(&(zh->facets),new_facets);
return new_facets;
@@ -91,6 +51,15 @@ facet_t *getFacetByIndex(const list_t facets,
return (facet_t*) getEntry(facets,index);
}
+index_t getTriangleCorner(const zhull_t * const zh,
+ const index_t triangle_idx,
+ const index_t corner_idx) {
+ if (triangle_idx<getLength(zh->facets))
+ return getEntry(getFacetByIndex(zh->facets,triangle_idx)->corners,corner_idx);
+ else
+ return 0;
+}
+
facet_t *getFacetByPointer(const entry_t ptr) {
return (facet_t*) ptr;
}
@@ -153,7 +122,7 @@ void freeFacets(zhull_t * const zh) {
if (getLength(zh->facets)>0) {
for (i=0; i<getLength(zh->facets); i++) {
f=getFacetByIndex(zh->facets,i);
-// printf("deleting facet %li\n",i);
+ // printf("deleting facet %li\n",i);
freeFacet(f);
}
freeList(&(zh->facets));
@@ -162,7 +131,7 @@ void freeFacets(zhull_t * const zh) {
void freeZhull(zhull_t *zh) {
if (zh!=0) {
-// printf("free zhull\n");
+ // printf("free zhull\n");
freeFacets(zh);
freeList(&(zh->facets_with_insidepoints));
freeList(&(zh->facets_with_outsidepoints));
@@ -176,9 +145,15 @@ void freeZhull(zhull_t *zh) {
// interface
-vector_t getPoint(const zhull_t * const zh,
- const index_t index) {
- return (vector_t) zh->pts.v[index];
+
+
+line_t getLine(const zhull_t * const zh,
+ const facet_t * const f,
+ const index_t corner) {
+ vector_t a, b;
+ a=getPoint(zh->pts,getEntry(f->corners, (corner)%getLength(f->corners)));
+ b=getPoint(zh->pts,getEntry(f->corners,(corner+1)%getLength(f->corners)));
+ return lineFromTwoPoints(a,b);
}
zhull_t zhullInitPoints(const float *x, const float *y,
@@ -195,68 +170,91 @@ zhull_t zhullInitPoints(const float *x, const float *y,
void dividePointsBetweenNewFacets (
zhull_t * const zh, const list_t assoc,
- const list_t new_facets, const list_t horizon_fcts) {
+ const list_t new_facets) {
index_t i,j;
- list_t new_and_horizon_fcts=mergeLists(new_facets,horizon_fcts);
- printList(new_and_horizon_fcts);
- uniquefyListEntries(&new_and_horizon_fcts);
- printList(new_and_horizon_fcts);
+ facet_t *f;
+ list_t point_inside_facet_list=emptyList();
float d;
for (i=0; i<getLength(assoc); i++) {
- printf("p %d\n", getEntry(assoc,i));
- for (j=0; j<getLength(new_and_horizon_fcts); j++) {
- d=distancePointPlane(getPoint(zh,getEntry(assoc,i)),
- getFacetByIndex(new_and_horizon_fcts,j)->plane);
- // printf("distance %5.2f to %d\n",d,findValueInList((entry_t)getFacetByIndex(new_and_horizon_fcts,j),zh->facets));
- /*
- if ((d>=-TOL) && (d<=TOL)) {
- appendToList(&(getFacetByIndex(new_facets,j)->insideset),
- getEntry(assoc,i));
- if (notInList(getEntry(new_facets,j),zh->facets_with_insidepoints))
- appendToList(&(zh->facets_with_insidepoints),
- getEntry(new_facets,j));
- break;
- }
- else */
- if (d>=-TOL) {
- appendToList(&(getFacetByIndex(new_and_horizon_fcts,j)->outsideset),
- getEntry(assoc,i));
- // printf("appended ");
- if (notInList(getEntry(new_and_horizon_fcts,j),zh->facets_with_outsidepoints))
- appendToList(&(zh->facets_with_outsidepoints),getEntry(new_and_horizon_fcts,j));
- if (getFacetByIndex(new_and_horizon_fcts,j)->maxdistance<d) {
- getFacetByIndex(new_and_horizon_fcts,j)->maxdistance=d;
- getFacetByIndex(new_and_horizon_fcts,j)->farthest_outside_point=getEntry(assoc,i);
- }
+ for (j=0; j<getLength(new_facets); j++) {
+ f=getFacetByIndex(new_facets,j);
+ d=distancePointPlane(getPoint(zh->pts,getEntry(assoc,i)),
+ f->plane);
+ if (d>=TOL_OUTSIDEPOINT)
break;
+ else if (d>=TOL_INSIDEPOINT) {
+ appendToList(&point_inside_facet_list,(entry_t)f);
+ }
+ }
+ if (d>=TOL_OUTSIDEPOINT) {
+ appendToList(&(f->outsideset), getEntry(assoc,i));
+ if (notInList((entry_t)f,zh->facets_with_outsidepoints))
+ appendToList(&(zh->facets_with_outsidepoints),(entry_t)f);
+ if (f->maxdistance<d) {
+ f->maxdistance=d;
+ f->farthest_outside_point=getEntry(assoc,i);
+ }
+ }
+ else {
+ if (getLength(point_inside_facet_list)>0) {
+ for (j=0; j<getLength(point_inside_facet_list); j++) {
+ f=getFacetByIndex(point_inside_facet_list,j);
+ appendToList(&(f->insideset),getEntry(assoc,i));
+ }
+ appendListToList(&(zh->facets_with_insidepoints),point_inside_facet_list);
+ uniquefyListEntries(&(zh->facets_with_insidepoints));
}
}
}
+ freeList(&point_inside_facet_list);
}
void zhullInitialFacets(zhull_t *zh) {
list_t assoc = emptyList();
list_t new_facets = emptyList();
index_t i;
- if (zh->pts.num_points >= 3) {
- assoc = initListFromTo(0,zh->pts.num_points-1);
+ entry_t idx[3]={0,1,2};
+ list_t list=initList(idx,3);
+ if (getNumPoints(zh->pts)>= 3) {
+ assoc = initListFromTo(0,getNumPoints(zh->pts)-1);
new_facets = appendNewFacets(zh,2);
if (getLength(new_facets)==2) {
- getFacetByIndex(new_facets,0)->corners = initListFromTo(0,2);
- getFacetByIndex(new_facets,1)->corners = initListFromTo(2,0);
- getFacetByIndex(new_facets,0)->neighbors =
- initConstantList((entry_t)getFacetByIndex(new_facets,1),3);
- getFacetByIndex(new_facets,1)->neighbors =
- initConstantList((entry_t)getFacetByIndex(new_facets,0),3);
- for (i=0; i<2; i++) {
- getFacetByIndex(new_facets,i)->plane =
- planeFromListedPoints(zh->pts, getFacetByIndex(new_facets,i)->corners);
- getFacetByIndex(new_facets,i)->outsideset = emptyList();
- getFacetByIndex(new_facets,i)->insideset = emptyList();
- getFacetByIndex(new_facets,i)->maxdistance = 0.0f;
- removeValueListFromList(&assoc,getFacetByIndex(new_facets,i)->corners);
+ do { // circumvent coincident points
+ if (distancePointPoint(getPoint(zh->pts,idx[0]),getPoint(zh->pts,idx[1]))>TOL_DEGENERATE)
+ break;
+ else
+ idx[1]++;
+ } while (idx[1]<getNumPoints(zh->pts));
+ if (idx[1]<getNumPoints(zh->pts)) {
+ do { // circumvent degenerate triangles
+ list=initList(idx,3);
+ if (lengthVector(normalOfListedPoints(zh->pts,list))>TOL_DEGENERATE)
+ break;
+ else {
+ idx[2]++;
+ freeList(&list);
+ }
+ } while (idx[2]<getNumPoints(zh->pts));
+ if (idx[2]<getNumPoints(zh->pts)) {
+ getFacetByIndex(new_facets,0)->corners = list;
+ list=initList(idx,3);
+ reverseList(&list);
+ getFacetByIndex(new_facets,1)->corners = list;
+ getFacetByIndex(new_facets,0)->neighbors =
+ initConstantList((entry_t)getFacetByIndex(new_facets,1),3);
+ getFacetByIndex(new_facets,1)->neighbors =
+ initConstantList((entry_t)getFacetByIndex(new_facets,0),3);
+ for (i=0; i<2; i++) {
+ getFacetByIndex(new_facets,i)->plane =
+ planeFromListedPoints(zh->pts, getFacetByIndex(new_facets,i)->corners);
+ getFacetByIndex(new_facets,i)->outsideset = emptyList();
+ getFacetByIndex(new_facets,i)->insideset = emptyList();
+ getFacetByIndex(new_facets,i)->maxdistance = 0.0f;
+ removeValueListFromList(&assoc,getFacetByIndex(new_facets,i)->corners);
+ }
+ dividePointsBetweenNewFacets(zh, assoc, new_facets);
+ }
}
- dividePointsBetweenNewFacets(zh, assoc, new_facets, emptyList());
}
freeList(&new_facets);
freeList(&assoc);
@@ -308,59 +306,78 @@ void sortHorizonEdges(list_t *horizon_fcts,
void removeVisibleFacetsGetHorizonAndAvailablePoints(
zhull_t * const zh, index_t point_index,
- facet_t *facet,
+ facet_t *f,
list_t *horizon_fcts,
list_t *horizon_fcts_edges,
list_t *avail_points) {
index_t i,j,k;
- facet_t *f, *n;
+ facet_t *n;
float d;
list_t visible_fcts = emptyList();
- list_t indices_for_printing = emptyList();
+ list_t fcts_to_visit = emptyList();
+ list_t fcts_visited = emptyList();
*avail_points = emptyList();
*horizon_fcts = emptyList();
*horizon_fcts_edges = emptyList();
- appendToList(&visible_fcts, (entry_t)facet);
- for(i=0;i<getLength(visible_fcts);i++) {
- f=getFacetByIndex(visible_fcts,i);
- appendListToList(avail_points, f->outsideset);
- appendListToList(avail_points, f->insideset);
- for (j=0; j<getLength(f->neighbors); j++) {
- n=getFacetByIndex(f->neighbors,j);
- if (notInList((entry_t) n, visible_fcts)) {
- d=distancePointPlane(getPoint(zh,point_index),
- n->plane);
- if (d>-TOL) {
- if (notInList((entry_t)n,visible_fcts))
- appendToList(&visible_fcts,(entry_t)n);
- }
+ i=0;
+ appendToList(&fcts_to_visit,(entry_t)f);
+ if (getLength(fcts_to_visit)==0)
+ return;
+ do {
+ f=getFacetByIndex(fcts_to_visit,0);
+ d=distancePointPlane(getPoint(zh->pts,point_index),f->plane);
+ if (d>=TOL_OUTSIDEPOINT) { // visible facet
+ appendToList(&visible_fcts,(entry_t)f);
+ appendListToList(avail_points, f->outsideset);
+ for (j=0; j<getLength(f->neighbors); j++) {
+ n=getFacetByIndex(f->neighbors,j);
+ d=distancePointPlane(getPoint(zh->pts,point_index),n->plane);
+ if (d>=TOL_INSIDEPOINT)
+ appendToList(&fcts_to_visit,(entry_t)n);
else {
- appendToList(horizon_fcts,(entry_t)n);
+ // invisible neighbor: horizon edge found
k=getEntry(f->corners,(j+1)%getLength(f->corners));
- // printf("searching for corner with %d in\n",k);
- // printList(n->corners);
k=findValueInList(k,n->corners);
- // printf("found %d\n",k);
+ appendToList(horizon_fcts,(entry_t)n);
appendToList(horizon_fcts_edges,k);
- }
+ }
+ }
+ }
+ else if (d>=TOL_INSIDEPOINT) { // coincident facet
+ for (j=0; j<getLength(f->neighbors); j++) {
+ // is point outside polygon? searching edges.
+ d=distancePointLineOnPlane(getPoint(zh->pts,point_index),
+ getLine(zh,f,j),f->plane);
+ if (d>=TOL_OUTSIDEPOINT) { // point outside edge: register horizon edge
+ appendToList(horizon_fcts,(entry_t)f);
+ appendToList(horizon_fcts_edges,j);
+ // exceptional: initial facet with opposing normal
+ if (innerProduct(f->plane.normal, getFacetByIndex(f->neighbors,j)->plane.normal)<
+ -1.0f+TOL_OUTSIDEPOINT)
+ appendToList(&fcts_to_visit,(entry_t)
+ getFacetByIndex(f->neighbors,j));
+ } // otherwise point is discared
}
}
- }
- printf("removing facets");
- indices_for_printing=findValueListInList(visible_fcts, zh->facets);
- printList(indices_for_printing);
+ appendToList(&fcts_visited,(entry_t)f);
+ removeValueListFromList(&fcts_to_visit,fcts_visited);
+ } while (getLength(fcts_to_visit)>0);
+
+// printf("removing facets");
+// indices_for_printing=findValueListInList(visible_fcts, zh->facets);
+// printList(indices_for_printing);
+// freeList(&indices_for_printing);
removeFacetByPointerList(zh,visible_fcts);
freeList(&visible_fcts);
- // printHorizonEdges(horizon_fcts, horizon_fcts_edges);
+ freeList(&fcts_to_visit);
sortHorizonEdges(horizon_fcts, horizon_fcts_edges);
- printHorizonEdges(horizon_fcts, horizon_fcts_edges);
+// printHorizonEdges(horizon_fcts, horizon_fcts_edges);
}
-
-void initNewFacets(zhull_t *zh, int point_index,
+void initNewFacets(zhull_t *zh, index_t point_index,
list_t new_facets, list_t horizon_fcts,
list_t horizon_fcts_edges) {
index_t i,j;
@@ -368,8 +385,6 @@ void initNewFacets(zhull_t *zh, int point_index,
array[0]=point_index;
for (i=0; i<getLength(new_facets); i++) {
- // printf("adding facet %d\n",getEntry(new_facets,i));
-
// corners
getHorizonEdgeByIndex(array,horizon_fcts, horizon_fcts_edges,i);
array[2]=array[1];
@@ -377,7 +392,6 @@ void initNewFacets(zhull_t *zh, int point_index,
array[0]=array[2];
array[2]=point_index;
getFacetByIndex(new_facets,i)->corners=initList(array,3);
- // printList(getFacetByIndex(new_facets,i)->corners);
// neighbors
// previous new neighbor
@@ -391,6 +405,11 @@ void initNewFacets(zhull_t *zh, int point_index,
getFacetByIndex(new_facets,i)->neighbors=
initList(array,3);
+ removeValueFromList(&(getFacetByIndex(horizon_fcts,i)->insideset),point_index);
+ if (getLength(getFacetByIndex(horizon_fcts,i)->insideset)==0) {
+ removeValueFromList(&(zh->facets_with_insidepoints),(entry_t)getFacetByIndex(horizon_fcts,i));
+ }
+
// registering at old neighbor:
setEntry(getFacetByIndex(horizon_fcts,i)->neighbors,
getEntry(horizon_fcts_edges,i), getEntry(new_facets,i));
@@ -399,6 +418,9 @@ void initNewFacets(zhull_t *zh, int point_index,
getFacetByIndex(new_facets,i)->plane =
planeFromListedPoints(zh->pts,
getFacetByIndex(new_facets,i)->corners);
+
+// printf("new facet %d ",findValueInList(getEntry(new_facets,i),zh->facets));
+// printFacet(zh, getFacetByIndex(new_facets,i));
}
}
@@ -406,12 +428,13 @@ void makePyramidFacetsToHorizon(zhull_t *zh, index_t point_index,
list_t horizon_fcts, list_t horizon_fcts_edges,
list_t avail_points) {
list_t new_facets = appendNewFacets(zh, getLength(horizon_fcts_edges));
+// printf("making new pyramid of %d facets\n",getLength(horizon_fcts_edges));
initNewFacets(zh,point_index,new_facets,horizon_fcts,horizon_fcts_edges);
// printf("available points: ");
// printList(avail_points);
// printf("new facets : ");
// printList(new_facets);
- dividePointsBetweenNewFacets(zh, avail_points, new_facets, horizon_fcts);
+ dividePointsBetweenNewFacets(zh, avail_points, new_facets);
freeList(&new_facets);
}
@@ -426,22 +449,32 @@ void calculateZHull(zhull_t *zh,int maxit) {
list_t available_points=emptyList();
if (maxit>MAXIT)
maxit=MAXIT;
- if (zh->pts.num_points!=0){
+ if (getNumPoints(zh->pts)!=0){
zhullInitialFacets(zh);
- printZhull(zh);
- while((getLength(zh->facets_with_outsidepoints)>0)&&(cnt++<maxit)) {
- printf("//////////////// ITERATION %d ///////\n",cnt);
- fli%=getLength(zh->facets_with_outsidepoints);
- f=getFacetByIndex(zh->facets_with_outsidepoints,fli);
- pi=f->farthest_outside_point;
+// printZhull(zh);
+ while(((getLength(zh->facets_with_insidepoints)>0)
+ ||(getLength(zh->facets_with_outsidepoints)>0))
+ &&(cnt++<maxit)) {
+// printf("//////////////// ITERATION %d ///////\n",cnt);
+ if (getLength(zh->facets_with_insidepoints)>0) {
+ fli%=getLength(zh->facets_with_insidepoints);
+ f=getFacetByIndex(zh->facets_with_insidepoints,fli);
+ pi=getEntry(f->insideset,0);
+// printf("insidepoint\n");
+// printList(zh->facets_with_insidepoints);
+ }
+ else {
+ fli%=getLength(zh->facets_with_outsidepoints);
+ f=getFacetByIndex(zh->facets_with_outsidepoints,fli);
+ pi=f->farthest_outside_point;
+ }
removeVisibleFacetsGetHorizonAndAvailablePoints(zh,pi,f,
&horizon_fcts, &horizon_fcts_edges,
&available_points);
removeValueFromList(&available_points, pi);
makePyramidFacetsToHorizon(zh,pi,horizon_fcts,horizon_fcts_edges,
available_points);
- printZhull(zh);
-
+// printZhull(zh);
freeList(&horizon_fcts);
freeList(&horizon_fcts_edges);
freeList(&available_points);
@@ -453,13 +486,15 @@ void calculateZHull(zhull_t *zh,int maxit) {
void printZhull(const zhull_t * const zh) {
index_t fi;
list_t indices = emptyList();
- printf("zhull from %d points\n", zh->pts.num_points);
+ printf("zhull from %d points\n", getNumPoints(zh->pts));
printf("facets with outsidepoints: ");
indices=findValueListInList(zh->facets_with_outsidepoints,zh->facets);
printList(indices);
freeList(&indices);
-// printf("facets with insidepoints: ");
-// printList(zh->facets_with_insidepoints);
+ printf("facets with insidepoints: ");
+ indices=findValueListInList(zh->facets_with_insidepoints,zh->facets);
+ printList(indices);
+ freeList(&indices);
printf("zhull has %d facets\n", getLength(zh->facets));
for (fi=0; fi<getLength(zh->facets); fi++) {
printf("facet %d<%d>: ",fi,getFacetByIndex(zh->facets,fi));
diff --git a/src/mtx_qhull/zhull.h b/src/mtx_qhull/zhull.h
index 2a20768..fc0ff14 100644
--- a/src/mtx_qhull/zhull.h
+++ b/src/mtx_qhull/zhull.h
@@ -1,9 +1,16 @@
#ifndef QHULL_ZHULL_H
#define QHULL_ZHULL_H
-#include <sys/types.h>
-#include "list.h"
#include "vectors.h"
+#include "list.h"
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#define TOL_OUTSIDEPOINT 1e-7
+#define TOL_INSIDEPOINT -1e-7
+#define TOL_DEGENERATE 1e-6
+#define MAXIT 1000000
+
typedef struct facet_ {
plane_t plane;
@@ -23,13 +30,13 @@ typedef struct zhull_ {
} zhull_t;
void calculateZHull(zhull_t *zh,int maxit);
+index_t getTriangleCorner(const zhull_t * const zh,
+ const index_t triangle_idx,
+ const index_t corner_idx);
void printZhull(const zhull_t * const zh);
void freeZhull(zhull_t *zh);
zhull_t zhullInitPoints(const float *x, const float *y,
const float *z, const size_t num_points);
void printFacet(const zhull_t * const zh,
const facet_t * const f);
-
-facet_t *getFacetByIndex(const list_t facets, const index_t index);
-
#endif /* QHULL_ZHULL_H */