/**
* Add all points of an outer or inner ring to a multipolygon.
*/
void add_points(const osmium::NodeRefList& nodes) {
osmium::Location last_location;
for (const osmium::NodeRef& node_ref : nodes) {
if (last_location != node_ref.location()) {
last_location = node_ref.location();
m_impl.multipolygon_add_location(m_projection(last_location));
}
}
}
void Camera::calculatePerspective(float fieldOfView, float aspectRatio,
float zNear, float zFar)
{
m_projection.setIdentity();
float f = 1.0f / std::tan(fieldOfView * float(M_PI) / 360.0f);
m_projection(0, 0) = f / aspectRatio;
m_projection(1, 1) = f;
m_projection(2, 2) = (zNear + zFar) / (zNear - zFar);
m_projection(2, 3) = (2.0f * zFar * zNear) / (zNear - zFar);
m_projection(3, 2) = -1;
m_projection(3, 3) = 0;
}
void Camera::calculateOrthographic(float left, float right,
float bottom, float top,
float zNear, float zFar)
{
left *= m_orthographicScale;
right *= m_orthographicScale;
bottom *= m_orthographicScale;
top *= m_orthographicScale;
m_projection.setIdentity();
m_projection(0, 0) = 2.0f / (right - left);
m_projection(0, 3) = -(right + left) / (right - left);
m_projection(1, 1) = 2.0f / (top - bottom);
m_projection(1, 3) = -(top + bottom) / (top - bottom);
m_projection(2, 2) = -2.0f / (zFar - zNear);
m_projection(2, 3) = -(zFar + zNear) / (zFar - zNear);
m_projection(3, 3) = 1;
}
