public List <Line> Offset3D(List <Polyline> x, double y)
{
List <Line> output = new List <Line>();
if (x.Count < 4)
{
return(output);
}
List <Line> lines = breakPoly(x[0]);
for (int i = 1; i < x.Count; i++)
{
List <Line> ls = breakPoly(x[i]);
//Print(ls.Count.ToString());
for (int ii = 0; ii < ls.Count; ii++)
{
bool sign = true;
for (int j = 0; j < lines.Count; j++)
{
if (isDumpLines(lines[j], ls[ii]))
{
sign = false; break;
}
}
//Print(sign.ToString());
if (sign)
{
lines.Add(ls[ii]);
}
}
}
Point3d cen = new Point3d();
for (int i = 0; i < lines.Count; i++)
{
cen += lines[i].From; cen += lines[i].To;
}
// B = lines;
cen /= 2 * lines.Count;
HullFrame.box box = new HullFrame.box(lines);
HullFrame.hull hull = new HullFrame.hull(box, cen);
for (int i = 0; i < x.Count; i++)
{
if (x[i].Count < 3)
{//Print("00001");
return(output);
}
Plane p = new Plane(x[i][0], x[i][1], x[i][2]);
Vector3d v = cen - p.ClosestPoint(cen);
v.Unitize(); p = new Plane(x[i][0], v);
p.Transform(Transform.Translation(v * y));
hull.intersect(p);
hull.clearnull();
}
for (int i = 0; i < hull.edges.Count; i++)
{
output.Add(new Line(hull.edges[i].p1.pos, hull.edges[i].p2.pos));
}
List <Point3d> pt = new List <Point3d>();
for (int i = 0; i < hull.pts.Count; i++)
{
pt.Add(hull.pts[i].pos);
}
return(output);
}
public List<Line> Offset3D(List<Polyline> x, double y)
{
List<Line> output = new List<Line>();
if (x.Count < 4) return output;
List<Line> lines = breakPoly(x[0]);
for (int i = 1; i < x.Count; i++)
{
List<Line> ls = breakPoly(x[i]);
//Print(ls.Count.ToString());
for (int ii = 0; ii < ls.Count; ii++)
{
bool sign = true;
for (int j = 0; j < lines.Count; j++)
{
if (isDumpLines(lines[j], ls[ii])) { sign = false; break; }
}
//Print(sign.ToString());
if (sign) lines.Add(ls[ii]);
}
}
Point3d cen = new Point3d();
for (int i = 0; i < lines.Count; i++)
{
cen += lines[i].From; cen += lines[i].To;
}
// B = lines;
cen /= 2 * lines.Count;
HullFrame.box box = new HullFrame.box(lines);
HullFrame.hull hull = new HullFrame.hull(box, cen);
for (int i = 0; i < x.Count; i++)
{
if (x[i].Count < 3)
{//Print("00001");
return output;
}
Plane p = new Plane(x[i][0], x[i][1], x[i][2]);
Vector3d v = cen - p.ClosestPoint(cen);
v.Unitize(); p = new Plane(x[i][0], v);
p.Transform(Transform.Translation(v * y));
hull.intersect(p);
hull.clearnull();
}
for (int i = 0; i < hull.edges.Count; i++)
{
output.Add(new Line(hull.edges[i].p1.pos, hull.edges[i].p2.pos));
}
List<Point3d> pt = new List<Point3d>();
for (int i = 0; i < hull.pts.Count; i++)
{
pt.Add(hull.pts[i].pos);
}
return output;
}
