////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
public virtual void CurveTo(PointFP control1, PointFP control2, PointFP point)
{
var tmp1 = new PointFP(_currPoint.X - control1.X * 2 + control2.X,
_currPoint.Y - control1.Y * 2 + control2.Y);
var tmp2 = new PointFP((control1.X - control2.X) * 3 - _currPoint.X
+ point.X, (control1.Y - control2.Y) * 3 - _currPoint.Y + point.Y);
var f = new PointFP(_currPoint);
var df = new PointFP((control1.X - _currPoint.X) * 3 / SUBDIVIDE
+ tmp1.X * 3 / SUBDIVIDE2 + tmp2.X / SUBDIVIDE3,
(control1.Y - _currPoint.Y) * 3 / SUBDIVIDE + tmp1.Y * 3
/ SUBDIVIDE2 + tmp2.Y / SUBDIVIDE3);
var ddf = new PointFP(tmp1.X * 6 / SUBDIVIDE2 + tmp2.X * 6
/ SUBDIVIDE3, tmp1.Y * 6 / SUBDIVIDE2 + tmp2.Y * 6 / SUBDIVIDE3);
var dddf = new PointFP(tmp2.X * 6
/ SUBDIVIDE3, tmp2.Y * 6 / SUBDIVIDE3);
for (var c = 0; c < SUBDIVIDE - 1; c++)
{
f.Add(df);
df.Add(ddf);
ddf.Add(dddf);
LineTo(f);
}
LineTo(point);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
*
* @param control
* @param point
*/
public virtual void QuadTo(PointFP control, PointFP point)
{
// Compute forward difference values for a quadratic
// curve of type A*(1-t)^2 + 2*B*t*(1-t) + C*t^2
var f = new PointFP(_currPoint);
var tmp = new PointFP((_currPoint.X - control.X * 2 + point.X)
/ SUBDIVIDE2, (_currPoint.Y - control.Y * 2 + point.Y)
/ SUBDIVIDE2);
var ddf = new PointFP(tmp.X * 2, tmp.Y * 2);
var df = new PointFP(tmp.X + (control.X - _currPoint.X) * 2
/ SUBDIVIDE, tmp.Y + (control.Y - _currPoint.Y) * 2 / SUBDIVIDE);
for (int c = 0; c < SUBDIVIDE - 1; c++)
{
f.Add(df);
df.Add(ddf);
LineTo(f);
}
// We specify the last point manually since
// we obtain rounding errors during the
// forward difference computation.
LineTo(point);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
*
* @param control
* @param point
*/
public virtual void QuadTo(PointFP control, PointFP point)
{
// Compute forward difference values for a quadratic
// curve of type A*(1-t)^2 + 2*B*t*(1-t) + C*t^2
var f = new PointFP(_currPoint);
var tmp = new PointFP((_currPoint.X - control.X * 2 + point.X)
/ SUBDIVIDE2, (_currPoint.Y - control.Y * 2 + point.Y)
/ SUBDIVIDE2);
var ddf = new PointFP(tmp.X * 2, tmp.Y * 2);
var df = new PointFP(tmp.X + (control.X - _currPoint.X) * 2
/ SUBDIVIDE, tmp.Y + (control.Y - _currPoint.Y) * 2 / SUBDIVIDE);
for (int c = 0; c < SUBDIVIDE - 1; c++)
{
f.Add(df);
df.Add(ddf);
LineTo(f);
}
// We specify the last point manually since
// we obtain rounding errors during the
// forward difference computation.
LineTo(point);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
public virtual void CurveTo(PointFP control1, PointFP control2, PointFP point)
{
var tmp1 = new PointFP(_currPoint.X - control1.X * 2 + control2.X,
_currPoint.Y - control1.Y * 2 + control2.Y);
var tmp2 = new PointFP((control1.X - control2.X) * 3 - _currPoint.X
+ point.X, (control1.Y - control2.Y) * 3 - _currPoint.Y + point.Y);
var f = new PointFP(_currPoint);
var df = new PointFP((control1.X - _currPoint.X) * 3 / SUBDIVIDE
+ tmp1.X * 3 / SUBDIVIDE2 + tmp2.X / SUBDIVIDE3,
(control1.Y - _currPoint.Y) * 3 / SUBDIVIDE + tmp1.Y * 3
/ SUBDIVIDE2 + tmp2.Y / SUBDIVIDE3);
var ddf = new PointFP(tmp1.X * 6 / SUBDIVIDE2 + tmp2.X * 6
/ SUBDIVIDE3, tmp1.Y * 6 / SUBDIVIDE2 + tmp2.Y * 6 / SUBDIVIDE3);
var dddf = new PointFP(tmp2.X * 6
/ SUBDIVIDE3, tmp2.Y * 6 / SUBDIVIDE3);
for (var c = 0; c < SUBDIVIDE - 1; c++)
{
f.Add(df);
df.Add(ddf);
ddf.Add(dddf);
LineTo(f);
}
LineTo(point);
}
