private void CheckSegs(DrawContext dc, CadLayer layer, CadFigure fig)
{
for (int i = 0; i < fig.SegmentCount; i++)
{
FigureSegment seg = fig.GetFigSegmentAt(i);
CheckSeg(dc, layer, seg);
}
}
public override FigureSegment GetFigSegmentAt(int n)
{
FigureSegment seg = new FigureSegment(this, n, SegList[n].Idx0, SegList[n].Idx1);
return(seg);
}
private void CheckCircle(DrawContext dc, CadLayer layer, CadFigure fig)
{
if (fig.PointCount < 3)
{
return;
}
VertexList vl = fig.PointList;
if (fig.StoreList != null)
{
vl = fig.StoreList;
}
Vector3d c = vl[0].vector;
Vector3d a = vl[1].vector;
Vector3d b = vl[2].vector;
Vector3d normal = CadMath.Normal(a - c, b - c);
Vector3d tw = Target.Pos;
tw.Z = 0;
tw = dc.DevPointToWorldPoint(tw);
Vector3d crossP = CadMath.CrossPlane(tw, tw + dc.ViewDir, c, normal);
if (crossP.IsInvalid())
{
// 真横から見ている場合
// viewed edge-on
//DOut.tpl("crossP is invalid");
return;
}
double r = (a - c).Norm();
double tr = (crossP - c).Norm();
Vector3d cirP = c + (crossP - c) * (r / tr);
Vector3d dcirP = dc.WorldPointToDevPoint(cirP);
Vector3d dcrossP = dc.WorldPointToDevPoint(crossP);
dcirP.Z = 0;
dcrossP.Z = 0;
double dist = (dcirP - Target.Pos).Norm();
if (dist > Range)
{
//DOut.tpl($"dist:{dist} Range:{Range}");
return;
}
if (dist < MinDist)
{
FigureSegment fseg = new FigureSegment(fig, 0, 0, 0);
MarkSeg.Layer = layer;
MarkSeg.FigSeg = fseg;
MarkSeg.CrossPoint = cirP;
MarkSeg.CrossPointScrn = dc.WorldPointToDevPoint(cirP);
MarkSeg.Distance = dist;
MinDist = dist;
}
}
private void CheckSeg(DrawContext dc, CadLayer layer, FigureSegment fseg)
{
CadFigure fig = fseg.Figure;
int idxA = fseg.Index0;
int idxB = fseg.Index1;
Vector3d a = fseg.Point0.vector;
Vector3d b = fseg.Point1.vector;
if (fig.StoreList != null && fig.StoreList.Count > 1)
{
if (!CheckStorePoint)
{
return;
}
a = fseg.StoredPoint0.vector;
b = fseg.StoredPoint1.vector;
}
Vector3d cwp = dc.DevPointToWorldPoint(Target.Pos);
Vector3d xfaceNormal = dc.DevVectorToWorldVector(Target.DirX);
Vector3d yfaceNormal = dc.DevVectorToWorldVector(Target.DirY);
Vector3d cx = CadMath.CrossSegPlane(a, b, cwp, xfaceNormal);
Vector3d cy = CadMath.CrossSegPlane(a, b, cwp, yfaceNormal);
if (!cx.IsValid() && !cy.IsValid())
{
return;
}
Vector3d p = VectorExt.InvalidVector3d;
double mind = double.MaxValue;
Vector3d dcenter = dc.WorldPointToDevPoint(CadMath.CenterPoint(a, b));
double centerDist = (dcenter - Target.Pos).Norm();
if (CheckPriority == Priority.NONE || centerDist < Range)
{
StackArray <Vector3d> vtbl = default;
vtbl[0] = cx;
vtbl[1] = cy;
vtbl.Length = 2;
for (int i = 0; i < vtbl.Length; i++)
{
Vector3d v = vtbl[i];
if (!v.IsValid())
{
continue;
}
Vector3d devv = dc.WorldPointToDevPoint(v);
double td = (devv - Target.Pos).Norm();
if (td < mind)
{
mind = td;
p = v;
}
}
}
else
{
if (CheckPriority == Priority.PRIORITY_X)
{
p = cx;
}
else if (CheckPriority == Priority.PRIORITY_Y)
{
p = cy;
}
if (p.IsInvalid())
{
return;
}
Vector3d devv = dc.WorldPointToDevPoint(p);
mind = (devv - Target.Pos).Norm();
}
if (!p.IsValid())
{
return;
}
if (mind > Range)
{
return;
}
if (mind < MinDist)
{
MarkSeg.Layer = layer;
MarkSeg.FigSeg = fseg;
MarkSeg.CrossPoint = p;
MarkSeg.CrossPointScrn = dc.WorldPointToDevPoint(p);
MarkSeg.Distance = mind;
MinDist = mind;
}
}
