internal void method_5(ConvexHull3d convexHull3d_0)
{
PointSet initialPoints = convexHull3d_0.InitialPoints;
if (initialPoints == null)
{
throw new InvalidOperationException("Can not compute convex hull: no point set defined.");
}
if (initialPoints.Count < 4)
{
throw new ArgumentException("Can not compute 3d convex hull for less than four points.");
}
if (!Class20.bool_0)
{
Class20.smethod_0();
}
PointSet pointSet = initialPoints.DeepCopy();
pointSet.RandomPermute();
Point center = pointSet.Center;
int[] array = new int[4];
array[0] = 0;
Point point = pointSet[array[0]];
array[1] = 1;
Point point2 = pointSet[array[1]];
while (Math.Abs(Predicate.Orient2d_exact(point, point2, center)) < 1E-07 | point2 == point)
{
array[1]++;
if (array[1] > pointSet.Count - 1)
{
throw new ArithmeticException("Failed compute 3d convex hull: need at least four non-coplanar points.");
}
point2 = pointSet[array[1]];
}
array[2] = 1;
Point point3 = pointSet[array[2]];
while (Predicate.Orient3d_exact(point, point2, point3, center) < 1E-06 | point3 == point | point3 == point2)
{
array[2]++;
if (array[2] > pointSet.Count - 1)
{
throw new ArithmeticException("Failed compute 3d convex hull: need at least four non-coplanar points.");
}
point3 = pointSet[array[2]];
}
array[3] = 1;
Point point4 = pointSet[array[3]];
while (Predicate.Orient3d_exact(point, point2, point3, point4) < 1E-06 | point4 == point | point4 == point2 | point4 == point3)
{
array[3]++;
if (array[3] > pointSet.Count - 1)
{
throw new ArithmeticException("Failed compute 3d convex hull: need at least four non-coplanar points.");
}
point4 = pointSet[array[3]];
}
List <int> list = new List <int>();
list.AddRange(array);
list.Sort();
pointSet.RemoveAt(list[3]);
pointSet.RemoveAt(list[2]);
pointSet.RemoveAt(list[1]);
pointSet.RemoveAt(list[0]);
Class25 @class = new Class25(point);
Class25 class2 = new Class25(point2);
Class25 class3 = new Class25(point3);
Class25 class4 = new Class25(point4);
@class.method_5(true);
class2.method_5(true);
class3.method_5(true);
class4.method_5(true);
this.list_1.Add(new Class13(@class, class2, class3));
this.list_1.Add(new Class13(@class, class4, class2));
this.list_1.Add(new Class13(@class, class3, class4));
this.list_1.Add(new Class13(class3, class2, class4));
this.list_1[0].method_8()[0] = this.list_1[3];
this.list_1[0].method_8()[1] = this.list_1[2];
this.list_1[0].method_8()[2] = this.list_1[1];
this.list_1[1].method_8()[0] = this.list_1[3];
this.list_1[1].method_8()[1] = this.list_1[0];
this.list_1[1].method_8()[2] = this.list_1[2];
this.list_1[2].method_8()[0] = this.list_1[3];
this.list_1[2].method_8()[1] = this.list_1[1];
this.list_1[2].method_8()[2] = this.list_1[0];
this.list_1[3].method_8()[0] = this.list_1[1];
this.list_1[3].method_8()[1] = this.list_1[2];
this.list_1[3].method_8()[2] = this.list_1[0];
for (int i = 0; i < pointSet.Count; i++)
{
this.list_0.Add(new Class25(pointSet[i]));
}
this.list_0.Add(@class);
this.list_0.Add(class2);
this.list_0.Add(class3);
this.list_0.Add(class4);
for (int j = 0; j < this.list_0.Count; j++)
{
convexHull3d_0.vmethod_0(null, null);
for (int k = 0; k < this.list_1.Count; k++)
{
if (this.list_1[k].method_15(this.list_0[j]))
{
this.list_1[k].method_10().Add(this.list_0[j]);
this.list_0[j].method_2().Add(this.list_1[k]);
}
}
}
}
internal List <Class23> method_7(Class25 class25_0)
{
List <Class23> list = new List <Class23>();
for (int i = 0; i < class25_0.method_2().Count; i++)
{
if (class25_0.method_2()[i].method_0())
{
class25_0.method_2()[i].method_2().method_5(false);
class25_0.method_2()[i].method_4().method_5(false);
class25_0.method_2()[i].method_6().method_5(false);
if (!class25_0.method_2()[i].method_8()[0].method_15(class25_0))
{
list.Add(class25_0.method_2()[i].method_12());
}
if (!class25_0.method_2()[i].method_8()[1].method_15(class25_0))
{
list.Add(class25_0.method_2()[i].method_13());
}
if (!class25_0.method_2()[i].method_8()[2].method_15(class25_0))
{
list.Add(class25_0.method_2()[i].method_14());
}
}
}
if (list.Count == 0)
{
return(null);
}
List <Class23> list2 = new List <Class23>();
int count = list.Count;
list2.Add(list[0]);
list.RemoveAt(0);
int j = 0;
IL_19F:
while (j < count - 1)
{
for (int k = list.Count - 1; k >= 0; k--)
{
if (list[k].method_0() == list2[list2.Count - 1].method_2())
{
list2.Add(list[k]);
list.RemoveAt(k);
IL_199_:
j++;
goto IL_19F;
}
}
goto IL_199;
IL_199:
j++;
goto IL_19F;
}
for (int l = 0; l < list2.Count; l++)
{
list2[l].method_0().method_5(true);
list2[l].method_2().method_5(true);
}
class25_0.method_5(true);
return(list2);
}