////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* {@inheritDoc}
*/
public bool Intersects(int x, int y, int w, int h)
{
if (NumOfPoints <= 0 || !GetBoundingBox().Intersects(x, y, w, h))
{
return(false);
}
Crossings cross = GetCrossings(x, y, x + w, y + h);
return(cross == null || !cross.IsEmpty());
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* {@inheritDoc}
*/
public bool Contains(int x, int y, int w, int h)
{
if (NumOfNpoints <= 0 || !GetBoundingBox().Intersects(x, y, w, h))
{
return(false);
}
Crossings cross = GetCrossings(x, y, x + w, y + h);
return(cross != null && cross.Covers(y, y + h));
}
public override bool AccumulateCrossings(Crossings c)
{
double xlo = c.GetXLo();
double ylo = c.GetYLo();
double xhi = c.GetXHi();
double yhi = c.GetYHi();
if (_xmin >= xhi)
{
return(false);
}
double xstart, ystart, xend, yend;
if (_y0 < ylo)
{
if (_y1 <= ylo)
{
return(false);
}
ystart = ylo;
xstart = XforY(ylo);
}
else
{
if (_y0 >= yhi)
{
return(false);
}
ystart = _y0;
xstart = _x0;
}
if (_y1 > yhi)
{
yend = yhi;
xend = XforY(yhi);
}
else
{
yend = _y1;
xend = _x1;
}
if (xstart >= xhi && xend >= xhi)
{
return(false);
}
if (xstart > xlo || xend > xlo)
{
return(true);
}
c.Record((int)(ystart + .5), (int)(yend + 0.5), _direction);
return(false);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* {@inheritDoc}
*/
public bool Intersects(int x, int y, int w, int h)
{
if (w < 0 || h < 0)
{
return(false);
}
if (!GetCachedBounds().Intersects(x, y, w, h))
{
return(false);
}
Crossings c = Crossings.FindCrossings(_curves, x, y, x + w, y + h);
return(c == null || !c.IsEmpty());
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* {@inheritDoc}
*/
public bool Contains(int x, int y, int w, int h)
{
if (w < 0 || h < 0)
{
return(false);
}
if (!GetCachedBounds().Contains(x, y, w, h))
{
return(false);
}
Crossings c = Crossings.FindCrossings(_curves, x, y, x + w, y + h);
return(c.Covers(y, y + h));
}
public override bool AccumulateCrossings(Crossings c)
{
double xlo = c.GetXLo();
double ylo = c.GetYLo();
double xhi = c.GetXHi();
double yhi = c.GetYHi();
if (_xmin >= xhi)
{
return false;
}
double xstart, ystart, xend, yend;
if (_y0 < ylo)
{
if (_y1 <= ylo)
{
return false;
}
ystart = ylo;
xstart = XforY(ylo);
}
else
{
if (_y0 >= yhi)
{
return false;
}
ystart = _y0;
xstart = _x0;
}
if (_y1 > yhi)
{
yend = yhi;
xend = XforY(yhi);
}
else
{
yend = _y1;
xend = _x1;
}
if (xstart >= xhi && xend >= xhi)
{
return false;
}
if (xstart > xlo || xend > xlo)
{
return true;
}
c.Record((int)(ystart + .5), (int)(yend + 0.5), _direction);
return false;
}
public virtual bool AccumulateCrossings(Crossings c)
{
double xhi = c.GetXHi();
if (GetXMin() >= xhi)
{
return false;
}
double xlo = c.GetXLo();
double ylo = c.GetYLo();
double yhi = c.GetYHi();
double y0 = GetYTop();
double y1 = GetYBot();
double tstart, ystart, tend, yend;
if (y0 < ylo)
{
if (y1 <= ylo)
{
return false;
}
ystart = ylo;
tstart = TforY(ylo);
}
else
{
if (y0 >= yhi)
{
return false;
}
ystart = y0;
tstart = 0;
}
if (y1 > yhi)
{
yend = yhi;
tend = TforY(yhi);
}
else
{
yend = y1;
tend = 1;
}
bool hitLo = false;
bool hitHi = false;
while (true)
{
double x = XforT(tstart);
if (x < xhi)
{
if (hitHi || x > xlo)
{
return true;
}
hitLo = true;
}
else
{
if (hitLo)
{
return true;
}
hitHi = true;
}
if (tstart >= tend)
{
break;
}
tstart = NextVertical(tstart, tend);
}
if (hitLo)
{
c.Record((int)(ystart + .5), (int)(yend + .5), _direction);
}
return false;
}
