private void WHRect(out fpoint a, out fpoint b)
{
fpoint uppoint;
fpoint dwpoint;
if (Up.y < Down.y)
{
uppoint = Up;
dwpoint = Down;
}
else
{
uppoint = Down;
dwpoint = Up;
}
if (uppoint.x > dwpoint.x)
{
double temp = dwpoint.y;
dwpoint.y = uppoint.y;
uppoint.y = temp;
fpoint tmp = dwpoint;
dwpoint = uppoint;
uppoint = tmp;
}
a = uppoint;
b = dwpoint;
}
//переводит истинны координаты в экранные
public Point RealToScreen(fpoint pt)
{
try
{
return(new Point(Convert.ToInt32(pt.x * rs_dx), Convert.ToInt32(pt.y * rs_dy)));
}
catch (Exception e)
{
onException("Ошибка при преобразовании координаты", e.Message);
return(new Point());
}
}
public override double GetR(fpoint f)
{
fpoint a;
fpoint b;
WHRect(out a, out b);
if ((f.x > a.x) && (f.y > a.y) && (f.x < b.x) && (f.y < b.y))
{
return(10);
}
return(-1);
}
//Получает ближайшую фигуру к указанной экранной точке
public int GetNearShape(Point pt)
{
fpoint fpt = ScreenToReal(pt);
double minval = double.MaxValue;
double val = 0;
int minsp = -1;
for (int i = 0; i < shapelist.Count; i++)
{
val = shapelist[i].GetR(fpt);
if ((val < minval) && (val != -1))
{
minval = val;
minsp = i;
}
}
return(minsp);
}
public override double GetR(fpoint f)
{
fpoint bp;
fpoint cp;
if (fpoint.GetRasst(f, fpEnd) > fpoint.GetRasst(f, fpBeg))
{
bp = fpEnd - fpBeg;
cp = f - fpBeg;
}
else
{
bp = fpBeg - fpEnd;
cp = f - fpEnd;
}
double a = fpoint.GetRasstNormalized(cp);
double b = fpoint.GetRasstNormalized(bp);
double cosa = (bp.x * cp.x + bp.y * cp.y) / (a * b);
double res = cosa >= 0 ? Math.Sqrt(1 - cosa * cosa) * a : -1;
return(res < 50 ? res : -1);
}
//Получает расстояние от данной точки до фигуры public abstract double GetR(fpoint f);
public sRect(DelegateContainer _dlc, double x1, double y1, double x2, double y2)
: base(_dlc)
{
this.Up = new fpoint(x1, y1);
this.Down = new fpoint(x2, y2);
}
public sRect(DelegateContainer _dlc, Point Down, Point Up)
: base(_dlc)
{
this.Up = base.dlc.fScreenToReal(Down);
this.Down = base.dlc.fScreenToReal(Up);
}
public override double GetR(fpoint f)
{
double val = fpoint.GetRasst(Center, f);
return(val < Radius ? val : -1);
}
public sCircle(DelegateContainer _dlc, double x1, double y1, double r)
: base(_dlc)
{
this.Center = new fpoint(x1, y1);
this.Radius = r;
}
public sCircle(DelegateContainer _dlc, Point Down, Point Up)
: base(_dlc)
{
this.Center = base.dlc.fScreenToReal(Down);
this.Radius = fpoint.GetRasst(base.dlc.fScreenToReal(Down), base.dlc.fScreenToReal(Up));
}
public sLine(DelegateContainer _dlc, double x1, double y1, double x2, double y2)
: base(_dlc)
{
fpBeg = new fpoint(x1, y1);
fpEnd = new fpoint(x2, y2);
}
public sLine(DelegateContainer _dlc, Point p1, Point p2)
: base(_dlc)
{
fpBeg = base.dlc.fScreenToReal(p1);
fpEnd = base.dlc.fScreenToReal(p2);
}
public override double GetR(fpoint f)
{
double val = fpoint.GetRasst(this.Center, f);
return(val < 50 ? val: -1);
}
public sCross(DelegateContainer _dlc, double x, double y)
: base(_dlc)
{
Center = new fpoint(x, y);
}
public sCross(DelegateContainer _dlc, int x, int y)
: base(_dlc)
{
Center = base.dlc.fScreenToReal(new Point(x, y));
}