void LaneLineTile::writeLine(std::ostream &out, double from, double to, double offset, double width, std::string color) const
{
if (from >= to)
return;
Vector2 orthogonal = getStartDirection().getPerpendicularVectorRight();
Vector2 p = getStartPoint() + getStartDirection() * from + orthogonal * offset;
Vector2 q = getStartPoint() + getStartDirection() * to + orthogonal * offset;
out << "<line x1=\"" << p[0] << "\" y1=\"" << p[1] << "\" x2=\"" << q[0] << "\" y2=\"" << q[1] << "\" style=\"stroke:" << color << "; stroke-width:" << width << ";\" />\n";
}
void GlassLayer::updateSegments(void)
{
//Calculate a Cubic Hermite spline
_Segments.clear();
Vec2f Pos;
Real32 t,
t_sqr,
t_cub;
for(UInt32 i(1) ; i<getSegments() ; ++i)
{
t = static_cast<Real32>(i)/static_cast<Real32>(getSegments());
t_sqr = t*t;
t_cub = t_sqr*t;
Pos = ( 2.0f * t_cub - 3.0f*t_sqr + 1.0f) * getStartPosition().subZero() +
( t_cub - 2.0f*t_sqr + t) * getStartDirection() +
(-2.0f * t_cub + 3.0f*t_sqr ) * getEndPosition().subZero() +
( t_cub - t_sqr ) * getEndDirection();
_Segments.push_back(Pos);
}
}
