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);
}
public static List <Point3d> GetAllCrossPoints(Point3d basePt, Polyline boundary, Vector3d direction, double onTolerance)
{
List <Line> boundarySeg = boundary.GetSegments().ToList();
List <Point3d> crossPts = new List <Point3d>();
//testline setting
double coverAllLength = new BoundingBox(boundary).Diagonal.Length *2;
Line testLine = new Line(basePt, basePt + direction / direction.Length * coverAllLength);
double xHi1 = Math.Max(testLine.FromX, testLine.ToX);
double xLo1 = Math.Min(testLine.FromX, testLine.ToX);
double yHi1 = Math.Max(testLine.FromY, testLine.ToY);
double yLo1 = Math.Min(testLine.FromY, testLine.ToY);
foreach (Line i in boundarySeg)
{
//seive1: xRange
double xHi2 = Math.Max(i.FromX, i.ToX);
double xLo2 = Math.Min(i.FromX, i.ToX);
if (xHi1 > xHi2)
{
if (xLo1 > xHi2)
{
continue;
}
}
if (xHi2 > xHi1)
{
if (xLo2 > xHi1)
{
continue;
}
}
//seive2: yRange
double yHi2 = Math.Max(i.FromY, i.ToY);
double yLo2 = Math.Min(i.FromY, i.ToY);
if (yHi1 > yHi2)
{
if (yLo1 > yHi2)
{
continue;
}
}
if (yHi2 > yHi1)
{
if (yLo2 > yHi1)
{
continue;
}
}
Point3d tempCrossPt = CCXTools.GetCrossPt(testLine, i);
if (IsPtOnLine(tempCrossPt, testLine, onTolerance) && IsPtOnLine(tempCrossPt, i, onTolerance))
{
crossPts.Add(tempCrossPt);
}
}
return(crossPts);
}
//main
public void Inflate(Polyline boundary, Curve boundCrv, double minLength, bool applyMinToUpper)
{
bool isInsideBound = false;
double tempLoBound = minLength;
double tempUpBound = WidthLine.Length;
if (applyMinToUpper)
{
tempUpBound -= minLength;
}
if (HeightLine.Length < 0.5 || WidthLine.Length < 0.5) //start seive: zeroLine
{
return;
}
if (tempUpBound < minLength) //start seive: initial width < minLength
{
return;
}
double loopBreaker = 0;
while (tempLoBound <= tempUpBound)
{
if (loopBreaker == 10)
{
break;
}
loopBreaker++;
double tempWidth = (tempLoBound + tempUpBound) / 2;
double tempHeight = tempWidth / aspectRatio;
if (tempWidth < minLength) //mid seive
{
tempLoBound = minLength;
continue;
}
//counter-clockwise
Point3d p1 = BasePt;
Point3d p2 = BasePt + widthVec * tempWidth;
Point3d p3 = BasePt + widthVec * tempWidth + heightVec * tempHeight;
Point3d p4 = BasePt + heightVec * tempHeight;
Polyline tempBlock = new Polyline {
p1, p2, p3, p4, p1
};
if (boundCrv.Contains(p3) == PointContainment.Outside)
{
tempUpBound = tempWidth;
continue;
}
if (CCXTools.IsIntersectCrv(tempBlock, boundary, false))
{
tempUpBound = tempWidth;
}
else
{
isInsideBound = true;
tempLoBound = tempWidth;
}
}
if (!isInsideBound) //end seive: intersection
{
return;
}
if (tempLoBound / aspectRatio < minLength) //end seive: height
{
return;
}
Width = tempLoBound;
Height = tempLoBound / aspectRatio;
}