void MakeOneSubHull(tVertex vexc, tVertex fverts, tEdge fedges, tFace ffaces)
{
int vnum = 0;
tVertex v, v1;
vertices = NULL;
edges = NULL;
faces = NULL;
v1 = fverts;
do
{
if(v1 != vexc)
{
v = MakeNullVertex();
v->v[X] = v1->v[X];
v->v[Y] = v1->v[Y];
v->v[Z] = v1->v[Z];
v->vnum = vnum++;
}
v1 = v1->next;
}
while(v1 != fverts);
chMakeFullHull();
}
void chAddPoints(int n, const int *pos)
{
tVertex v;
int i, vnum;
if(vertices == NULL) vnum = 0; else vnum = vertices->prev->vnum;
for(i=0; i<n; i++)
{
v = MakeNullVertex();
v->v[X] = pos[3*i+0];
v->v[Y] = pos[3*i+1];
v->v[Z] = pos[3*i+2];
v->vnum = vnum++;
}
}
/*---------------------------------------------------------------------
ReadVertices: Reads in the vertices, and links them into a circular
list with MakeNullVertex. There is no need for the # of vertices to be
the first line: the function looks for EOF instead.
---------------------------------------------------------------------*/
void ReadVertices( void )
{
tVertex v;
int x, y;
int vnum = 0;
while ( scanf ("%d %d", &x, &y ) != EOF ) {
v = MakeNullVertex();
v->v[X] = x;
v->v[Y] = y;
v->vnum = vnum++;
}
nvertices = vnum;
if (nvertices < 3)
printf("%%Error in ReadVertices: nvertices=%d<3\n", nvertices),
exit(EXIT_FAILURE);
}
/*---------------------------------------------------------------------
ReadVertices: Reads in the vertices, and links them into a circular
list with MakeNullVertex. There is no need for the # of vertices to be
the first line: the function looks for EOF instead. Sets the global
variable vertices via the ADD macro.
---------------------------------------------------------------------*/
void ReadVertices( void )
{
tVertex v;
int x, y, z;
int vnum = 0;
while ( scanf ("%d %d %d", &x, &y, &z ) != EOF ) {
v = MakeNullVertex();
v->v[X] = x;
v->v[Y] = y;
v->v[Z] = z;
v->vnum = vnum++;
if ( ( abs(x) > SAFE ) || ( abs(y) > SAFE ) || ( abs(z) > SAFE ) ) {
printf("Coordinate of vertex below might be too large: run with -d flag\n");
PrintPoint(v);
}
}
}