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Reintroduce rotation limits for camera for FDM printers

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This commit is contained in:
Enrico Turri 2020-02-10 12:36:52 +01:00
parent 519a982fe9
commit 0f5f2bc519
3 changed files with 42 additions and 8 deletions
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38
src/slic3r/GUI/Camera.cpp
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@ -50,9 +50,11 @@ Camera::Camera()
#endif // ENABLE_6DOF_CAMERA
, m_type(Perspective)
, m_target(Vec3d::Zero())
#if !ENABLE_6DOF_CAMERA
#if ENABLE_6DOF_CAMERA
, m_zenit(45.0f)
#else
, m_theta(45.0f)
#endif // !ENABLE_6DOF_CAMERA
#endif // ENABLE_6DOF_CAMERA
, m_zoom(1.0)
, m_distance(DefaultDistance)
, m_gui_scale(1.0)
@ -409,6 +411,9 @@ void Camera::debug_render() const
Vec3f position = get_position().cast<float>();
Vec3f target = m_target.cast<float>();
float distance = (float)get_distance();
#if ENABLE_6DOF_CAMERA
float zenit = (float)m_zenit;
#endif // ENABLE_6DOF_CAMERA
Vec3f forward = get_dir_forward().cast<float>();
Vec3f right = get_dir_right().cast<float>();
Vec3f up = get_dir_up().cast<float>();
@ -425,6 +430,10 @@ void Camera::debug_render() const
ImGui::InputFloat3("Position", position.data(), "%.6f", ImGuiInputTextFlags_ReadOnly);
ImGui::InputFloat3("Target", target.data(), "%.6f", ImGuiInputTextFlags_ReadOnly);
ImGui::InputFloat("Distance", &distance, 0.0f, 0.0f, "%.6f", ImGuiInputTextFlags_ReadOnly);
#if ENABLE_6DOF_CAMERA
ImGui::Separator();
ImGui::InputFloat("Zenit", &zenit, 0.0f, 0.0f, "%.6f", ImGuiInputTextFlags_ReadOnly);
#endif // ENABLE_6DOF_CAMERA
ImGui::Separator();
ImGui::InputFloat3("Forward", forward.data(), "%.6f", ImGuiInputTextFlags_ReadOnly);
ImGui::InputFloat3("Right", right.data(), "%.6f", ImGuiInputTextFlags_ReadOnly);
@ -456,8 +465,20 @@ void Camera::translate_world(const Vec3d& displacement)
}
}
void Camera::rotate_on_sphere(double delta_azimut_rad, double delta_zenit_rad)
void Camera::rotate_on_sphere(double delta_azimut_rad, double delta_zenit_rad, bool apply_limits)
{
m_zenit += Geometry::rad2deg(delta_zenit_rad);
if (apply_limits) {
if (m_zenit > 90.0f) {
delta_zenit_rad -= Geometry::deg2rad(m_zenit - 90.0f);
m_zenit = 90.0f;
}
else if (m_zenit < -90.0f) {
delta_zenit_rad -= Geometry::deg2rad(m_zenit + 90.0f);
m_zenit = -90.0f;
}
}
// FIXME -> The following is a HACK !!!
// When the value of the zenit rotation is large enough, the following call to rotate() shows
// numerical instability introducing some scaling into m_view_matrix (verified by checking
@ -501,6 +522,7 @@ void Camera::rotate_local_around_pivot(const Vec3d& rotation_rad, const Vec3d& p
m_view_matrix.rotate(Eigen::AngleAxisd(rotation_rad(1), get_dir_up()));
m_view_matrix.rotate(Eigen::AngleAxisd(rotation_rad(2), get_dir_forward()));
translate_world(center);
update_zenit();
}
#endif // ENABLE_6DOF_CAMERA
@ -770,11 +792,14 @@ void Camera::look_at(const Vec3d& position, const Vec3d& target, const Vec3d& up
m_view_matrix(3, 1) = 0.0;
m_view_matrix(3, 2) = 0.0;
m_view_matrix(3, 3) = 1.0;
update_zenit();
}
void Camera::set_default_orientation()
{
double theta_rad = Geometry::deg2rad(-45.0);
m_zenit = 45.0f;
double theta_rad = Geometry::deg2rad(-(double)m_zenit);
double phi_rad = Geometry::deg2rad(45.0);
double sin_theta = ::sin(theta_rad);
Vec3d camera_pos = m_target + m_distance * Vec3d(sin_theta * ::sin(phi_rad), sin_theta * ::cos(phi_rad), ::cos(theta_rad));
@ -795,6 +820,11 @@ Vec3d Camera::validate_target(const Vec3d& target) const
std::clamp(target(1), test_box.min(1), test_box.max(1)),
std::clamp(target(2), test_box.min(2), test_box.max(2)));
}
void Camera::update_zenit()
{
m_zenit = Geometry::rad2deg(0.5 * M_PI - std::acos(std::clamp(-get_dir_forward().dot(Vec3d::UnitZ()), -1.0, 1.0)));
}
#endif // ENABLE_6DOF_CAMERA
} // GUI