public ClsBeze cnvOnpointToCntrlpoint(ClsBeze bz, double t1, double t2)
{
double x1, y1, x2, y2, x3, y3, x4, y4;
double ta;
double b1p1, b2p1, b3p1, b4p1;
double b1p2, b2p2, b3p2, b4p2;
double a, b, c, d, e, f;
ClsPairAns pa;
x1 = bz.x1; y1 = bz.y1;
x2 = bz.x2; y2 = bz.y2;
x3 = bz.x3; y3 = bz.y3;
x4 = bz.x4; y4 = bz.y4;
ta = 1 - t1;
b1p1 = ta * ta * ta;
b2p1 = 3.0 * t1 * ta * ta;
b3p1 = 3.0 * t1 * t1 * ta;
b4p1 = t1 * t1 * t1;
ta = 1 - t2;
b1p2 = ta * ta * ta;
b2p2 = 3.0 * t2 * ta * ta;
b3p2 = 3.0 * t2 * t2 * ta;
b4p2 = t2 * t2 * t2;
a = b2p1;
b = b3p1;
c = x2 - b1p1 * x1 - b4p1 * x4;
d = b2p2;
e = b3p2;
f = x3 - b1p2 * x1 - b4p2 * x4;
pa = calcSmltqu(a, b, c, d, e, f);
if (pa.stat == true)
{
bz.x2 = pa.ansa;
bz.x3 = pa.ansb;
}
a = b2p1;
b = b3p1;
c = y2 - b1p1 * y1 - b4p1 * y4;
d = b2p2;
e = b3p2;
f = y3 - b1p2 * y1 - b4p2 * y4;
pa = calcSmltqu(a, b, c, d, e, f);
if (pa.stat == true)
{
bz.y2 = pa.ansa;
bz.y3 = pa.ansb;
}
return(bz);
}
private ObjFigu cnvArcToFigu(ClsAtrXY atrxy1, ClsAtrXY atrxy2, ClsAtrXY atrxy3)
{
ObjFigu objFigu;
double x1, y1, x2, y2, x3, y3;
ClsArcCenter cntr;
ClsArcSER ser;
ClsBeze bz;
double rag;
double t1, t2;
x1 = atrxy1.x;
y1 = atrxy1.y;
x2 = atrxy2.x;
y2 = atrxy2.y;
x3 = atrxy3.x;
y3 = atrxy3.y;
objFigu = new ObjFigu();
objFigu.kind = Constants.LINEKIND;
objFigu.x1 = x1; objFigu.y1 = y1;
objFigu.x4 = x3; objFigu.y4 = y3;
cntr = m_libCurve.getCurve3pCenter(x1, y1, x2, y2, x3, y3);
if (cntr.stat == false)
{
return(objFigu);
}
ser = m_libCurve.getCurve3pRagR(x1, y1, x2, y2, x3, y3, cntr.x0, cntr.y0);
if (ser.stat == false)
{
return(objFigu);
}
bz = new ClsBeze();
bz.x1 = x1; bz.y1 = y1;
rag = (ser.erag - ser.srag) / 3.0 + ser.srag;
bz.x2 = Math.Cos(rag) * ser.dr + cntr.x0;
bz.y2 = Math.Sin(rag) * ser.dr + cntr.y0;
rag = (ser.erag - ser.srag) / 3.0 * 2.0 + ser.srag;
bz.x3 = Math.Cos(rag) * ser.dr + cntr.x0;
bz.y3 = Math.Sin(rag) * ser.dr + cntr.y0;
bz.x4 = x3; bz.y4 = y3;
t1 = 1.0 / 3.0; t2 = 1.0 / 3.0 * 2.0;
bz = m_libCurve.cnvOnpointToCntrlpoint(bz, t1, t2);
objFigu.kind = Constants.BEZEKIND;
objFigu.x1 = bz.x1; objFigu.y1 = bz.y1;
objFigu.x2 = bz.x2; objFigu.y2 = bz.y2;
objFigu.x3 = bz.x3; objFigu.y3 = bz.y3;
objFigu.x4 = bz.x4; objFigu.y4 = bz.y4;
return(objFigu);
}
