private void AddFootOfPerp()
{
int addedBaseSegCount = 0;
for (int i = 0; i < itSegments.Count(); i++)
{
List <InitialPt> fopInit = new List <InitialPt>();
//set
Line baseSeg = itSegments[i].Line;
Vector3d perpFromSegment = baseSeg.UnitTangent;
perpFromSegment.Rotate(Math.PI / 2, Vector3d.ZAxis);
//seive: count
if (addedBaseSegCount > 5)
{
break;
}
//seive: minimum length
if (baseSeg.Length < minLength)
{
continue;
}
for (int j = 0; j < atVertices.Count(); j++)
{
AngleTagVertex currentV = atVertices[j];
Vector3d testVec = currentV.Pt - baseSeg.PointAt(0);
bool isDexter = perpFromSegment * testVec > 0;
bool isUndecidable = Math.Abs(perpFromSegment * testVec) < 0.005;
if (isDexter && !isUndecidable)
{
initialPts.AddRange(FindFootOfPerp(baseSeg, -perpFromSegment, currentV, false));
}
else if (!isUndecidable)
{
initialPts.AddRange(FindFootOfPerp(baseSeg, perpFromSegment, currentV, true));
}
}
addedBaseSegCount++;
}
}
private void AddLongObtuseEdgePt()
{
List <InitialPt> obtuseInit = new List <InitialPt>();
int loopBreaker = 0;
for (int i = 0; i < itSegments.Count(); i++)
{
if (loopBreaker > 3)
{
break;
}
IndexTagSegment current = itSegments[i];
AngleTagVertex fromVrtx = atVertices[current.FromIndex];
AngleTagVertex toVrtx = atVertices[current.ToIndex % atVertices.Count];
if (fromVrtx.AngleType == AngleType.Obtuse)
{
Vector3d maxAlignVec = fromVrtx.PostVec;
Vector3d maxPerpVec = maxAlignVec;
maxPerpVec.Rotate(Math.PI / 2, Vector3d.ZAxis);
initialPts.Add(new InitialPt(fromVrtx.Pt, maxAlignVec, maxPerpVec));
}
if (toVrtx.AngleType == AngleType.Obtuse)
{
Vector3d maxAlignVec = toVrtx.PreVec;
Vector3d maxPerpVec = maxAlignVec;
maxPerpVec.Rotate(-Math.PI / 2, Vector3d.ZAxis);
initialPts.Add(new InitialPt(toVrtx.Pt, maxAlignVec, maxPerpVec));
}
loopBreaker++;
}
initialPts.AddRange(obtuseInit);
}
private List <InitialPt> FindFootOfPerp(Line perpBase, Vector3d perpDirection, AngleTagVertex perpStart, bool perpInvert)
{
List <InitialPt> footOfPerps = new List <InitialPt>();
if (!VectorTools.IsBetweenVector(perpStart.PreVec, perpStart.PostVec, perpDirection))
{
return(footOfPerps);
}
Line crossLay = new Line(perpStart.Pt, perpStart.Pt + perpDirection);
Point3d crossOnBase = CCXTools.GetCrossPt(perpBase, crossLay);
if (crossOnBase == Point3d.Unset || boundCrv.Contains(crossOnBase) == PointContainment.Outside)
{
return(footOfPerps);
}
Polyline perpLinePoly = new Polyline {
crossOnBase, perpStart.Pt
};
Vector3d perpVec = perpStart.Pt - crossOnBase;
if (perpInvert)
{
perpVec = -perpVec;
}
if (!CCXTools.IsIntersectCrv(perpLinePoly, boundary, false))
{
footOfPerps.Add(new InitialPt(crossOnBase, perpBase.UnitTangent, perpVec));
}
return(footOfPerps);
}
