SimpleTorusParametrization.cpp

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#include "SimpleTorusParametrization.h"
 
SimpleTorusParametrization::SimpleTorusParametrization(
    const Torus& torus)
    : m_torus(&torus)
{
    m_hcs.FromNormal(m_torus->AxisDirection());
}
 
void SimpleTorusParametrization::Shape(const Torus& torus)
{
    m_torus = &torus;
    m_hcs.FromNormal(m_torus->AxisDirection());
}
 
void SimpleTorusParametrization::WrapBitmap(const GfxTL::AABox< GfxTL::Vector2Df >& bbox,
        float epsilon, bool* uwrap, bool* vwrap) const
{
    if (bbox.Max()[0] - bbox.Min()[0] >= 2 * M_PI *
        ((m_torus->MajorRadius() < m_torus->MinorRadius() * 2) ?
         m_torus->MajorRadius() + m_torus->MinorRadius() : m_torus->MajorRadius()) - 2 * epsilon)
    {
        *uwrap = true;    // wrap around major component
    }
    else
    {
        *uwrap = false;
    }
    if (bbox.Max()[1] - bbox.Min()[1] >= 2 * M_PI * m_torus->MinorRadius() - 2 * epsilon)
    {
        *vwrap = true;    // wrap around minor component
    }
    else
    {
        *vwrap = false;
    }
}
 
size_t SimpleTorusParametrization::SerializedSize()
{
    return sizeof(float);
}
 
void SimpleTorusParametrization::Serialize(std::ostream* o, bool binary) const
{
    // for now only output placeholder for rotation of hcs
    float rot = 0;
    if (binary)
    {
        o->write((char*)&rot, sizeof(rot));
    }
    else
    {
        *o << rot << " ";
    }
}
 
void SimpleTorusParametrization::Deserialize(std::istream* i, bool binary)
{
    // read the placeholder
    float rot;
    if (binary)
    {
        i->read((char*)&rot, sizeof(rot));
    }
    else
    {
        *i >> rot;
    }
}