SpectrumAnalyser/transform3d.cpp at master · larzeitlin/SpectrumAnalyser · GitHub

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#include "transform3d.h"

// Transform by (Add / scale)
void Transform3D::translate(const QVector3D &dt)
{
    m_dirty = true;
    m_translation += dt;
}

void Transform3D::scale(const QVector3D &ds)
{
    m_dirty = true;
    m_scale += ds;
}

void Transform3D::rotate(const QQuaternion &dr)
{
    m_dirty = true;
    m_rotation = dr * m_rotation;
}

void Transform3D::grow(const QVector3D &ds)
{
    m_dirty = true;
    m_scale += ds;
}

// Transform To (Setters)
void Transform3D::setTranslation(const QVector3D &t)
{
    m_dirty = true;
    m_translation = t;
}

void Transform3D::setScale(const QVector3D &s)
{
    m_dirty = true;
    m_scale = s;
}

void Transform3D::setRotation(const QQuaternion &r)
{
    m_dirty = true;
    m_rotation = r;
}

// Accessors
const QMatrix4x4 &Transform3D::toMatrix()
{
  if (m_dirty)
  {
    m_dirty = false;
    m_world.setToIdentity();
    m_world.translate(m_translation);
    m_world.rotate(m_rotation);
    m_world.scale(m_scale);
  }
  return m_world;
}