// 高さが０の場合、移動方向が定まらないので
// 投影座標系でz=0とした座標から,List[0] - List[1]への垂線を計算して
// そこへ移動する
private void MoveSelectedPointWithHeight(DrawContext dc, Vector3d delta)
{
CadSegment seg = CadUtil.PerpSeg(PointList[0], PointList[1],
StoreList[2] + delta);
PointList[2] = PointList[2].SetVector(seg.P1.vector);
PointList[3] = PointList[3].SetVector(seg.P0.vector);
}
public override CadSegment GetSegmentAt(int n)
{
CadSegment seg = default;
seg.P0 = mPointList[SegList[n].Idx0];
seg.P1 = mPointList[SegList[n].Idx1];
return(seg);
}
public override void EndCreate(DrawContext dc)
{
if (PointList.Count < 3)
{
return;
}
CadSegment seg = CadUtil.PerpSeg(PointList[0], PointList[1], PointList[2]);
PointList[2] = PointList[2].SetVector(seg.P1.vector);
PointList.Add(seg.P0);
}
public override void EndEdit()
{
base.EndEdit();
if (PointList.Count == 0)
{
return;
}
CadSegment seg = CadUtil.PerpSeg(PointList[0], PointList[1], PointList[2]);
PointList[2] = PointList[2].SetVector(seg.P1.vector);
PointList[3] = PointList[3].SetVector(seg.P0.vector);
}
//
// 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);
}
private void DrawDim(
DrawContext dc,
CadVertex a,
CadVertex b,
CadVertex p,
DrawPen pen)
{
CadSegment seg = CadUtil.PerpSeg(a, b, p);
dc.Drawing.DrawLine(pen, a.vector, seg.P0.vector);
dc.Drawing.DrawLine(pen, b.vector, seg.P1.vector);
Vector3d cp = CadMath.CenterPoint(seg.P0.vector, seg.P1.vector);
double arrowW = ARROW_W;
double arrowL = ARROW_LEN;
dc.Drawing.DrawArrow(pen, cp, seg.P0.vector, ArrowTypes.CROSS, ArrowPos.END, arrowL, arrowW);
dc.Drawing.DrawArrow(pen, cp, seg.P1.vector, ArrowTypes.CROSS, ArrowPos.END, arrowL, arrowW);
}
void CheckFig(CadLayer layer, CadFigure fig)
{
int n = fig.PointCount;
for (int i = 0; i < n; i++)
{
CadVertex cp = fig.PointList[i];
CadVertex p = DC.WorldPointToDevPoint(cp);
CadVertex d = p - TargetPoint;
double dist = d.Norm2D();
if (dist > Range)
{
continue;
}
Result res = new ResultPoint(cp, dist, fig, i);
ResultList.Add(res);
}
//
// Create segment list that in range.
// And check center point of segment
//
// 範囲内の線分リスト作成
// ついでに中点のチェックも行う
//
n = fig.SegmentCount;
for (int i = 0; i < n; i++)
{
CadSegment seg = fig.GetSegmentAt(i);
CadVertex pw = (seg.P1 - seg.P0) / 2 + seg.P0;
CadVertex ps = DC.WorldPointToDevPoint(pw);
double dist = (ps - TargetPoint).Norm2D();
if (dist <= Range)
{
Result res = new ResultSegCenter(pw, dist, fig, i);
ResultList.Add(res);
}
CadVertex p0 = DC.WorldPointToDevPoint(seg.P0);
CadVertex p1 = DC.WorldPointToDevPoint(seg.P1);
double d = CadMath.DistancePointToSeg(p0.vector, p1.vector, TargetPoint.vector);
if (d > Range)
{
continue;
}
SegmentItem segItem = new SegmentItem();
segItem.Layer = layer;
segItem.Fig = fig;
segItem.SegIndex = i;
segItem.ScrSegment = new CadSegment(p0, p1);
SegList.Add(segItem);
}
}