public ILayoutLine GetExtendedFretLine(Measure amount)
{
if ((Length + (amount * 2)).NormalizedValue > 0)
{
if (IsStraight)
{
var layoutLine = new LayoutLine(Points.First(), Points.Last());
layoutLine.P2 += (layoutLine.Direction * amount);
layoutLine.P1 += (layoutLine.Direction * (amount * -1));
return(layoutLine);
}
else
{
RebuildSpline();
var tmpLine = new LayoutPolyLine(Points);
var bounds = GetFretBoundaries(false);
var offset1 = LayoutLine.Offset(bounds.Item1, amount * -1);
var offset2 = LayoutLine.Offset(bounds.Item2, amount);
tmpLine.TrimBetween(offset1, offset2, true);
if (Spline != null)
{
tmpLine.InterpolateSpline(0.5);
}
return(tmpLine);
}
}
return(null);
}
public static LayoutLine Offset(LayoutLine line, Measure amount)
{
var p1 = line.GetPerpendicularPoint(line.P1, amount);
var p2 = line.GetPerpendicularPoint(line.P2, amount);
return(new LayoutLine(p1, p2));
}
public void TrimEnd(LayoutLine trimLine, bool extendIfNeeded = false)
{
int interIdx;
PointM interPt = PointM.Empty;
if (!Intersects(trimLine, out interPt, out interIdx, extendIfNeeded))
{
return;
}
var pointsToKeep = new List <PointM>();
for (int i = 0; i <= interIdx; i++)
{
pointsToKeep.Add(Points[i]);
if (interIdx == i)
{
var ptRel = GetLocationRelativeToSegment(Points[i].ToVector(), Points[i + 1].ToVector(), interPt.ToVector());
if (ptRel == PointRelation.After)
{
pointsToKeep.Add(Points[i + 1]);
}
}
}
pointsToKeep.Add(interPt);
Points.Clear();
_Points.AddRange(pointsToKeep);
//remove points that are very close
MergePoints(0.05);
}
public PointM GetIntersection(LayoutLine other, out int segmentIndex, bool infiniteLine = true)
{
var intersection = PointM.Empty;
Intersects(other, out intersection, out segmentIndex, infiniteLine);
return(intersection);
}
public PointM GetIntersection(LayoutLine other)
{
var intersection = PointM.Empty;
Intersects(other, out intersection, true);
return(intersection);
}
public bool Intersects(LayoutLine line, out PointM intersection, bool infiniteLine = true)
{
intersection = PointM.Empty;
if (Intersects(line.Equation, out Vector inter, infiniteLine))
{
intersection = PointM.FromVector(inter, P1.Unit ?? P2.Unit);
return(true);
}
return(false);
}
public void TrimBetween(LayoutLine l1, LayoutLine l2, bool extendIfNeeded = false)
{
bool canTrimStart = Intersects(l1, out PointM p1, out int inter1Idx, extendIfNeeded);
bool canTrimEnd = Intersects(l2, out PointM p2, out int inter2Idx, extendIfNeeded);
if (!canTrimStart || !canTrimEnd)
{
if (canTrimStart)
{
TrimStart(l1, extendIfNeeded);
}
else if (canTrimEnd)
{
TrimEnd(l2, extendIfNeeded);
}
return;
}
var pointsToKeep = new List <PointM>();
pointsToKeep.Add(p1);
for (int i = inter1Idx; i <= inter2Idx; i++)
{
if (inter1Idx == i)
{
var ptRel = GetLocationRelativeToSegment(Points[i].ToVector(), Points[i + 1].ToVector(), p1.ToVector());
if (ptRel != PointRelation.Before)
{
continue;
}
}
pointsToKeep.Add(Points[i]);
if (inter2Idx == i)
{
var ptRel = GetLocationRelativeToSegment(Points[i].ToVector(), Points[i + 1].ToVector(), p2.ToVector());
if (ptRel == PointRelation.After)
{
pointsToKeep.Add(Points[i + 1]);
}
}
}
pointsToKeep.Add(p2);
Points.Clear();
_Points.AddRange(pointsToKeep);
//remove points that are very close
MergePoints(0.05);
}
public bool Intersects(LayoutLine line, out PointM intersection, out int segmentIndex, bool infiniteLine = true)
{
intersection = PointM.Empty;
if (Intersects(line.Equation, out Vector virtualInter, out segmentIndex, infiniteLine))
{
intersection = PointM.FromVector(virtualInter, Points.First().Unit);
return(true);
}
return(false);
}
public PointM GetIntersection(LayoutLine line)
{
var inter = Equation.GetIntersection(line.Equation);
return(PointM.FromVector(inter, P1.Unit));
}
public bool Intersects(LayoutLine line, out PointM intersection, bool infiniteLine = true)
{
return(Intersects(line, out intersection, out _, infiniteLine));
}