static int GetSquareForDatum(ARParam arParams, double[,] model, clsPoint pt)
{
var cpt = ModelToImageSpace(arParams, model, pt);
var pt1 = ModelToImageSpace(arParams, model, new clsPoint(pt.x - 8, pt.y - 8));
var pt2 = ModelToImageSpace(arParams, model, new clsPoint(pt.x + 8, pt.y - 8));
var pt3 = ModelToImageSpace(arParams, model, new clsPoint(pt.x + 8, pt.y + 8));
var pt4 = ModelToImageSpace(arParams, model, new clsPoint(pt.x - 8, pt.y + 8));
var l1 = new clsLine(pt1, pt2);
var l2 = new clsLine(pt2, pt3);
var l3 = new clsLine(pt3, pt4);
var l4 = new clsLine(pt4, pt1);
double d = 100;
var l = new clsLine(cpt, new clsPoint(cpt.x - 1, cpt.y - 1));
var p1 = l.Intersect(l1);
if (p1 != null && p1.Dist(cpt) < d)
{
d = p1.Dist(cpt);
}
p1 = l.Intersect(l2);
if (p1 != null && p1.Dist(cpt) < d)
{
d = p1.Dist(cpt);
}
p1 = l.Intersect(l3);
if (p1 != null && p1.Dist(cpt) < d)
{
d = p1.Dist(cpt);
}
p1 = l.Intersect(l4);
if (p1 != null && p1.Dist(cpt) < d)
{
d = p1.Dist(cpt);
}
l = new clsLine(cpt, new clsPoint(cpt.x + 1, cpt.y - 1));
p1 = l.Intersect(l1);
if (p1 != null && p1.Dist(cpt) < d)
{
d = p1.Dist(cpt);
}
p1 = l.Intersect(l2);
if (p1 != null && p1.Dist(cpt) < d)
{
d = p1.Dist(cpt);
}
p1 = l.Intersect(l3);
if (p1 != null && p1.Dist(cpt) < d)
{
d = p1.Dist(cpt);
}
p1 = l.Intersect(l4);
if (p1 != null && p1.Dist(cpt) < d)
{
d = p1.Dist(cpt);
}
return((int)(d / Sqrt(2.0) + 0.5));
}
public clsPoint FilletPoint()
{
clsLine l1;
clsLine l2;
clsPoint p1;
clsPoint p2;
p1 = StartPoint();
p2 = Tangent(Angle1);
l1 = new clsLine(p1.X, p1.Y, p1.X + p2.X, p1.Y + p2.Y);
p1 = EndPoint();
p2 = Tangent(Angle2);
l2 = new clsLine(p1.X, p1.Y, p1.X + p2.X, p1.Y + p2.Y);
return(l1.Intersect(l2));
}
public bool Overlaps(clsSketch aSketch, double aTol)
{
int i;
int j;
int k;
clsLine l1;
clsLine l2;
clsPoint p1;
bool isInside;
//Disregard the case of when one sketch is contained in the other.
isInside = true;
for (i = 0; i <= NumPoints; i++)
{
if (aSketch.IsPointInside2(Point(i)) == false)
{
isInside = false;
}
}
if (isInside)
{
return(false);
}
isInside = true;
for (i = 0; i <= aSketch.NumPoints; i++)
{
if (IsPointInside2(aSketch.Point(i)) == false)
{
isInside = false;
}
}
if (isInside)
{
return(false);
}
//Firstly see if a point of one sketch lies inside the other
for (i = 0; i <= NumPoints; i++)
{
if (aSketch.IsPointInside2(Point(i)))
{
return(true);
}
}
for (i = 0; i <= aSketch.NumPoints; i++)
{
if (IsPointInside2(aSketch.Point(i)))
{
return(true);
}
}
//Next, do more than 3 points coincide?
if (NumCommonPoints(aSketch, aTol) > 1)
{
return(true);
}
//Is there a non-trivial intersection?
for (i = 0; i <= NumPoints; i++)
{
if (i < NumPoints)
{
k = i + 1;
}
else
{
k = 0;
}
l1 = new clsLine(Point(i), Point(k));
//Is there a non-trivial intersection?
for (j = 0; j <= aSketch.NumPoints; j++)
{
if (j < aSketch.NumPoints)
{
k = j + 1;
}
else
{
k = 0;
}
l2 = new clsLine(aSketch.Point(j), aSketch.Point(k));
p1 = l1.Intersect(l2);
if (p1 != null)
{
if (l1.IsOnShortLine(p1, 0, true) & l2.IsOnShortLine(p1, 0, true))
{
return(true);
}
}
}
}
return(false);
}
