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Follow-up of 6c36577e8e -> World Z axis set to vertical when disconnecting 3d mouse

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This commit is contained in:
Enrico Turri 2020-03-10 13:02:39 +01:00
parent 33470f7f6d
commit a6a9ab9dc7
4 changed files with 21 additions and 6 deletions
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7
src/slic3r/GUI/Camera.hpp
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@ -122,6 +122,13 @@ public:
// returns true if the camera z axis (forward) is pointing in the negative direction of the world z axis
bool is_looking_downward() const { return get_dir_forward().dot(Vec3d::UnitZ()) < 0.0; }
// forces camera right vector to be parallel to XY plane
void recover_from_free_camera()
{
if (std::abs(get_dir_right()(2)) > EPSILON)
look_at(get_position(), m_target, Vec3d::UnitZ());
}
void look_at(const Vec3d& position, const Vec3d& target, const Vec3d& up);
double max_zoom() const { return 100.0; }