int LerpAndAddStrokeVertex(float fValue1, float fValue2, int x1, int y1, int x2, int y2, bool bVerticalEdge)
{
// swap if need be
if (fValue1 > fValue2)
{
int nSwap = x1;
x1 = x2;
x2 = nSwap;
nSwap = y1;
y1 = y2;
y2 = nSwap;
float fSwap = fValue1;
fValue1 = fValue2;
fValue2 = fSwap;
}
float fRefValue1 = fValue1;
float fRefValue2 = fValue2;
float fX1 = (float)x1 * m_fCellSize + m_fXShift;
float fY1 = (float)y1 * m_fCellSize + m_fYShift;
float fX2 = (float)x2 * m_fCellSize + m_fXShift;
float fY2 = (float)y2 * m_fCellSize + m_fYShift;
for (int i = 0; i < 5; ++i)
{
SubdivideStep(ref fRefValue1, ref fRefValue2, ref fX1, ref fY1, ref fX2, ref fY2, bVerticalEdge);
}
if (Math.Abs(fRefValue1) < Math.Abs(fRefValue2))
{
return(m_stroke.AddVertex(fX1, fY1));
}
else
{
return(m_stroke.AddVertex(fX2, fY2));
}
}
