public RulerInfo Capture(DrawContext dc, CadCursor cursor, double rangePixel)
{
RulerInfo match = default(RulerInfo);
RulerInfo ri = default(RulerInfo);
double min = rangePixel;
MatchIndex = -1;
for (int i = 0; i < RCount; i++)
{
ri = Ruler[i].Capture(dc, cursor, rangePixel);
if (ri.IsValid && ri.Distance < min)
{
min = ri.Distance;
match = ri;
MatchIndex = i;
}
}
return(match);
}
public RulerInfo Capture(DrawContext dc, CadCursor cursor, double range)
{
RulerInfo ret = default(RulerInfo);
Vector3d cwp = dc.DevPointToWorldPoint(cursor.Pos);
Vector3d xfaceNormal = dc.DevVectorToWorldVector(cursor.DirX);
Vector3d yfaceNormal = dc.DevVectorToWorldVector(cursor.DirY);
Vector3d cx = CadMath.CrossPlane(P0, P1, cwp, xfaceNormal);
Vector3d cy = CadMath.CrossPlane(P0, P1, cwp, yfaceNormal);
if (!cx.IsValid() && !cy.IsValid())
{
return(ret);
}
Vector3d p = VectorExt.InvalidVector3d;
double mind = Double.MaxValue;
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 - cursor.Pos).Norm();
if (td < mind)
{
mind = td;
p = v;
}
}
if (!p.IsValid())
{
return(ret);
}
if (mind > range)
{
return(ret);
}
ret.IsValid = true;
ret.CrossPoint = p;
ret.Distance = mind;
ret.Ruler = this;
return(ret);
}