private void CheckFigPoint(DrawContext dc, Vector3d pt, CadLayer layer, CadFigure fig, int ptIdx)
{
Vector3d ppt = dc.WorldPointToDevPoint(pt);
double dx = Math.Abs(ppt.X - Target.Pos.X);
double dy = Math.Abs(ppt.Y - Target.Pos.Y);
CrossInfo cix = CadMath.PerpCrossLine(Target.Pos, Target.Pos + Target.DirX, ppt);
CrossInfo ciy = CadMath.PerpCrossLine(Target.Pos, Target.Pos + Target.DirY, ppt);
double nx = (ppt - ciy.CrossPoint).Norm(); // Cursor Y軸からの距離
double ny = (ppt - cix.CrossPoint).Norm(); // Cursor X軸からの距離
if (nx <= Range)
{
if (nx < XMatch.DistanceX || (nx == XMatch.DistanceX && ny < XMatch.DistanceY))
{
XMatch = GetMarkPoint(pt, ppt, nx, ny, layer, fig, ptIdx);
}
}
if (ny <= Range)
{
if (ny < YMatch.DistanceY || (ny == YMatch.DistanceY && nx < YMatch.DistanceX))
{
YMatch = GetMarkPoint(pt, ppt, nx, ny, layer, fig, ptIdx);
}
}
if (dx <= Range && dy <= Range)
{
double minDist = (XYMatch.DistanceX * XYMatch.DistanceX) + (XYMatch.DistanceY * XYMatch.DistanceY);
double curDist = (dx * dx) + (dy * dy);
if (curDist <= minDist)
{
MarkPoint t = GetMarkPoint(pt, ppt, dx, dy, layer, fig, ptIdx);
//t.dump();
XYMatch = t;
if (!XYMatchSet.Contains(t))
{
XYMatchList.Add(XYMatch);
XYMatchSet.Add(XYMatch);
//DOut.pl($"PointSearcher XYMatchList cnt:{XYMatchList.Count}");
}
}
}
}
//
// 点pを通り、a - b に平行で、a-bに垂直な線分を求める
//
// +----------p------------+
// | |
// | |
// a b
//
public static CadSegment PerpSeg(CadVertex a, CadVertex b, CadVertex p)
{
CadSegment seg = default(CadSegment);
seg.P0 = a;
seg.P1 = b;
CrossInfo ci = CadMath.PerpCrossLine(a.vector, b.vector, p.vector);
if (ci.IsCross)
{
CadVertex nv = p - ci.CrossPoint;
seg.P0 += nv;
seg.P1 += nv;
}
return(seg);
}