public virtual void Copy(CubicBezier acopy)
{
base.Copy(acopy);
m_p1 = acopy.m_p1;
m_p2 = acopy.m_p2;
m_useEndArrow = acopy.m_useEndArrow;
m_useStartArrow = acopy.m_useStartArrow;
m_crv = acopy.m_crv;
m_guid = acopy.Guid;
UpdateCtrlPts();
Selected = acopy.Selected;
}
void UpdateCtrlPts()
{
double xDelta = m_p2.X - m_p1.X;
double scale = 0.6;
m_p1Ctrl.X = m_p1.X + xDelta * scale;
m_p1Ctrl.Y = m_p1.Y;
m_p2Ctrl.X = m_p2.X - xDelta * scale;
m_p2Ctrl.Y = m_p2.Y;
if (m_crv == null)
{
m_crv = new CubicBezierCurveCurve(new float[2] {
(float)m_p1.X, (float)m_p1.Y
},
new float[2] {
(float)m_p1Ctrl.X, (float)m_p1Ctrl.Y
},
new float[2] {
(float)m_p2Ctrl.X, (float)m_p2Ctrl.Y
},
new float[2] {
(float)m_p2.X, (float)m_p2.Y
});
}
else
{
m_crv.SetPos(0, (float)m_p1.X, (float)m_p1.Y);
m_crv.SetPos(1, (float)m_p1Ctrl.X, (float)m_p1Ctrl.Y);
m_crv.SetPos(2, (float)m_p2Ctrl.X, (float)m_p2Ctrl.Y);
m_crv.SetPos(3, (float)m_p2.X, (float)m_p2.Y);
}
float[] midPt = { 0.0f, 0.0f };
m_crv.Eval(0.5f, ref midPt[0], ref midPt[1]);
m_center.X = midPt[0];
m_center.Y = midPt[1];
}
