Tech ENABLE_WORLD_COORDINATE - 1st installment

1) Added combo to select world/local coordinate to part manipulator in sidebar

2) Gizmo move oriented in dependence of the selected coordinate system

3) Sidebar hints for position oriented in dependence of the selected coordinate system

src/libslic3r/Technologies.hpp

@@ -80,6 +80,8 @@
 
 // Enable rendering modifiers and similar objects always as transparent
 #define ENABLE_MODIFIERS_ALWAYS_TRANSPARENT (1 && ENABLE_2_4_0_ALPHA4)
+// Enable editing volumes transformation in world coordinates and instances in local coordinates
+#define ENABLE_WORLD_COORDINATE (1 && ENABLE_2_4_0_ALPHA4)
 
 
 #endif // _prusaslicer_technologies_h_

src/slic3r/GUI/GUI_ObjectManipulation.cpp

@@ -444,8 +444,13 @@ void ObjectManipulation::Show(const bool show)
 
 	if (show) {
 		// Show the "World Coordinates" / "Local Coordintes" Combo in Advanced / Expert mode only.
-		bool show_world_local_combo = wxGetApp().plater()->canvas3D()->get_selection().is_single_full_instance() && wxGetApp().get_mode() != comSimple;
+#if ENABLE_WORLD_COORDINATE
-		m_word_local_combo->Show(show_world_local_combo);
+        const Selection& selection = wxGetApp().plater()->canvas3D()->get_selection();
+        bool show_world_local_combo = wxGetApp().get_mode() != comSimple && (selection.is_single_full_instance() || selection.is_single_volume() || selection.is_single_modifier());
+#else
+        bool show_world_local_combo = wxGetApp().plater()->canvas3D()->get_selection().is_single_full_instance() && wxGetApp().get_mode() != comSimple;
+#endif // ENABLE_WORLD_COORDINATE
+        m_word_local_combo->Show(show_world_local_combo);
         m_empty_str->Show(!show_world_local_combo);
 	}
 }
@@ -529,7 +534,9 @@ void ObjectManipulation::update_settings_value(const Selection& selection)
     if (selection.is_single_full_instance()) {
         // all volumes in the selection belongs to the same instance, any of them contains the needed instance data, so we take the first one
         const GLVolume* volume = selection.get_volume(*selection.get_volume_idxs().begin());
+#if !ENABLE_WORLD_COORDINATE
         m_new_position = volume->get_instance_offset();
+#endif // !ENABLE_WORLD_COORDINATE
 
         // Verify whether the instance rotation is multiples of 90 degrees, so that the scaling in world coordinates is possible.
 		if (m_world_coordinates && ! m_uniform_scale && 
@@ -540,14 +547,20 @@ void ObjectManipulation::update_settings_value(const Selection& selection)
 		}
 
         if (m_world_coordinates) {
-			m_new_rotate_label_string = L("Rotate");
+#if ENABLE_WORLD_COORDINATE
+            m_new_position = volume->get_instance_offset();
+#endif // ENABLE_WORLD_COORDINATE
+            m_new_rotate_label_string = L("Rotate");
 			m_new_rotation = Vec3d::Zero();
 			m_new_size     = selection.get_scaled_instance_bounding_box().size();
-			m_new_scale    = m_new_size.cwiseProduct(selection.get_unscaled_instance_bounding_box().size().cwiseInverse()) * 100.;
+			m_new_scale    = m_new_size.cwiseProduct(selection.get_unscaled_instance_bounding_box().size().cwiseInverse()) * 100.0;
 		} 
         else {
-			m_new_rotation = volume->get_instance_rotation() * (180. / M_PI);
+#if ENABLE_WORLD_COORDINATE
-            m_new_size = volume->get_instance_scaling_factor().cwiseProduct(wxGetApp().model().objects[volume->object_idx()]->raw_mesh_bounding_box().size());
+            m_new_position = Vec3d::Zero();
+#endif // ENABLE_WORLD_COORDINATE
+            m_new_rotation = volume->get_instance_rotation() * (180.0 / M_PI);
+            m_new_size     = volume->get_instance_scaling_factor().cwiseProduct(wxGetApp().model().objects[volume->object_idx()]->raw_mesh_bounding_box().size());
             m_new_scale    = volume->get_instance_scaling_factor() * 100.;
 		}
 
@@ -566,10 +579,29 @@ void ObjectManipulation::update_settings_value(const Selection& selection)
     else if (selection.is_single_modifier() || selection.is_single_volume()) {
         // the selection contains a single volume
         const GLVolume* volume = selection.get_volume(*selection.get_volume_idxs().begin());
+#if ENABLE_WORLD_COORDINATE
+        if (m_world_coordinates) {
+            const Geometry::Transformation trafo(volume->world_matrix());
+
+            const Vec3d& offset = trafo.get_offset();
+            const Vec3d& rotation = trafo.get_rotation();
+            const Vec3d& scaling_factor = trafo.get_scaling_factor();
+            const Vec3d& m = trafo.get_mirror();
+
+            m_new_position = offset;
+            m_new_rotation = rotation * (180.0 / M_PI);
+            m_new_scale    = scaling_factor * 100.0;
+            m_new_size     = volume->bounding_box().size().cwiseProduct(scaling_factor);
+        }
+        else {
+#endif // ENABLE_WORLD_COORDINATE
         m_new_position = volume->get_volume_offset();
         m_new_rotation = volume->get_volume_rotation() * (180. / M_PI);
         m_new_scale    = volume->get_volume_scaling_factor() * 100.;
-        m_new_size = volume->get_instance_scaling_factor().cwiseProduct(volume->get_volume_scaling_factor().cwiseProduct(volume->bounding_box().size()));
+        m_new_size     = volume->get_instance_scaling_factor().cwiseProduct(volume->get_volume_scaling_factor().cwiseProduct(volume->bounding_box().size()));
+#if ENABLE_WORLD_COORDINATE
+        }
+#endif // ENABLE_WORLD_COORDINATE
         m_new_enabled = true;
     }
     else if (obj_list->multiple_selection() || obj_list->is_selected(itInstanceRoot)) {
@@ -814,7 +846,11 @@ void ObjectManipulation::change_position_value(int axis, double value)
     auto canvas = wxGetApp().plater()->canvas3D();
     Selection& selection = canvas->get_selection();
     selection.start_dragging();
+#if ENABLE_WORLD_COORDINATE
+    selection.translate(position - m_cache.position, !m_world_coordinates);
+#else
     selection.translate(position - m_cache.position, selection.requires_local_axes());
+#endif // ENABLE_WORLD_COORDINATE
     canvas->do_move(L("Set Position"));
 
     m_cache.position = position;
@@ -974,6 +1010,17 @@ void ObjectManipulation::set_uniform_scaling(const bool new_value)
     m_uniform_scale = new_value;
 }
 
+#if ENABLE_WORLD_COORDINATE
+void ObjectManipulation::set_world_coordinates(const bool world_coordinates)
+{
+    m_world_coordinates = world_coordinates;
+    this->UpdateAndShow(true);
+    GLCanvas3D* canvas = wxGetApp().plater()->canvas3D();
+    canvas->set_as_dirty();
+    canvas->request_extra_frame();
+}
+#endif // ENABLE_WORLD_COORDINATE
+
 void ObjectManipulation::msw_rescale()
 {
     const int em = wxGetApp().em_unit();

src/slic3r/GUI/GUI_ObjectManipulation.hpp

@@ -183,7 +183,11 @@ public:
     void        set_uniform_scaling(const bool uniform_scale);
     bool        get_uniform_scaling() const { return m_uniform_scale; }
     // Does the object manipulation panel work in World or Local coordinates?
+#if ENABLE_WORLD_COORDINATE
+    void        set_world_coordinates(const bool world_coordinates);
+#else
     void        set_world_coordinates(const bool world_coordinates) { m_world_coordinates = world_coordinates; this->UpdateAndShow(true); }
+#endif // ENABLE_WORLD_COORDINATE
     bool        get_world_coordinates() const { return m_world_coordinates; }
 
     void reset_cache() { m_cache.reset(); }

src/slic3r/GUI/Gizmos/GLGizmoMove.cpp

@@ -2,6 +2,9 @@
 #include "GLGizmoMove.hpp"
 #include "slic3r/GUI/GLCanvas3D.hpp"
 #include "slic3r/GUI/GUI_App.hpp"
+#if ENABLE_WORLD_COORDINATE
+#include "slic3r/GUI/GUI_ObjectManipulation.hpp"
+#endif // ENABLE_WORLD_COORDINATE
 
 #include <GL/glew.h>
 
@@ -14,11 +17,6 @@ const double GLGizmoMove3D::Offset = 10.0;
 
 GLGizmoMove3D::GLGizmoMove3D(GLCanvas3D& parent, const std::string& icon_filename, unsigned int sprite_id)
     : GLGizmoBase(parent, icon_filename, sprite_id)
-    , m_displacement(Vec3d::Zero())
-    , m_snap_step(1.0)
-    , m_starting_drag_position(Vec3d::Zero())
-    , m_starting_box_center(Vec3d::Zero())
-    , m_starting_box_bottom_center(Vec3d::Zero())
 {
     m_vbo_cone.init_from(its_make_cone(1., 1., 2*PI/36));
 }
@@ -26,15 +24,15 @@ GLGizmoMove3D::GLGizmoMove3D(GLCanvas3D& parent, const std::string& icon_filenam
 std::string GLGizmoMove3D::get_tooltip() const
 {
     const Selection& selection = m_parent.get_selection();
-    bool show_position = selection.is_single_full_instance();
+    const bool show_position = selection.is_single_full_instance();
     const Vec3d& position = selection.get_bounding_box().center();
 
     if (m_hover_id == 0 || m_grabbers[0].dragging)
-        return "X: " + format(show_position ? position(0) : m_displacement(0), 2);
+        return "X: " + format(show_position ? position.x() : m_displacement.x(), 2);
     else if (m_hover_id == 1 || m_grabbers[1].dragging)
-        return "Y: " + format(show_position ? position(1) : m_displacement(1), 2);
+        return "Y: " + format(show_position ? position.y() : m_displacement.y(), 2);
     else if (m_hover_id == 2 || m_grabbers[2].dragging)
-        return "Z: " + format(show_position ? position(2) : m_displacement(2), 2);
+        return "Z: " + format(show_position ? position.z() : m_displacement.z(), 2);
     else
         return "";
 }
@@ -65,17 +63,27 @@ void GLGizmoMove3D::on_start_dragging()
     if (m_hover_id != -1) {
         m_displacement = Vec3d::Zero();
         const BoundingBoxf3& box = m_parent.get_selection().get_bounding_box();
+#if ENABLE_WORLD_COORDINATE
+        const Vec3d center = box.center();
+        m_starting_drag_position = center + m_grabbers[m_hover_id].center;
+        m_starting_box_center = center;
+        m_starting_box_bottom_center = center;
+        m_starting_box_bottom_center.z() = box.min.z();
+#else
         m_starting_drag_position = m_grabbers[m_hover_id].center;
         m_starting_box_center = box.center();
         m_starting_box_bottom_center = box.center();
-        m_starting_box_bottom_center(2) = box.min(2);
+        m_starting_box_bottom_center.z() = box.min.z();
+#endif // ENABLE_WORLD_COORDINATE
     }
 }
 
+#if !ENABLE_WORLD_COORDINATE
 void GLGizmoMove3D::on_stop_dragging()
 {
     m_displacement = Vec3d::Zero();
 }
+#endif // !ENABLE_WORLD_COORDINATE
 
 void GLGizmoMove3D::on_update(const UpdateData& data)
 {
@@ -89,12 +97,30 @@ void GLGizmoMove3D::on_update(const UpdateData& data)
 
 void GLGizmoMove3D::on_render()
 {
-    const Selection& selection = m_parent.get_selection();
-
     glsafe(::glClear(GL_DEPTH_BUFFER_BIT));
     glsafe(::glEnable(GL_DEPTH_TEST));
 
+    const Selection& selection = m_parent.get_selection();
     const BoundingBoxf3& box = selection.get_bounding_box();
+#if ENABLE_WORLD_COORDINATE
+    glsafe(::glPushMatrix());
+    transform_to_local(selection);
+
+    const Vec3d zero = Vec3d::Zero();
+    const Vec3d half_box_size = 0.5 * box.size();
+
+    // x axis
+    m_grabbers[0].center = { half_box_size.x() + Offset, 0.0, 0.0 };
+    m_grabbers[0].color = AXES_COLOR[0];
+
+    // y axis
+    m_grabbers[1].center = { 0.0, half_box_size.y() + Offset, 0.0 };
+    m_grabbers[1].color = AXES_COLOR[1];
+
+    // z axis
+    m_grabbers[2].center = { 0.0, 0.0, half_box_size.z() + Offset };
+    m_grabbers[2].color = AXES_COLOR[2];
+#else
     const Vec3d& center = box.center();
 
     // x axis
@@ -108,6 +134,7 @@ void GLGizmoMove3D::on_render()
     // z axis
     m_grabbers[2].center = { center.x(), center.y(), box.max.z() + Offset };
     m_grabbers[2].color = AXES_COLOR[2];
+#endif // ENABLE_WORLD_COORDINATE
 
     glsafe(::glLineWidth((m_hover_id != -1) ? 2.0f : 1.5f));
 
@@ -117,7 +144,11 @@ void GLGizmoMove3D::on_render()
             if (m_grabbers[i].enabled) {
                 glsafe(::glColor4fv(AXES_COLOR[i].data()));
                 ::glBegin(GL_LINES);
+#if ENABLE_WORLD_COORDINATE
+                ::glVertex3dv(zero.data());
+#else
                 ::glVertex3dv(center.data());
+#endif // ENABLE_WORLD_COORDINATE
                 ::glVertex3dv(m_grabbers[i].center.data());
                 glsafe(::glEnd());
             }
@@ -134,7 +165,11 @@ void GLGizmoMove3D::on_render()
         // draw axis
         glsafe(::glColor4fv(AXES_COLOR[m_hover_id].data()));
         ::glBegin(GL_LINES);
+#if ENABLE_WORLD_COORDINATE
+        ::glVertex3dv(zero.data());
+#else
         ::glVertex3dv(center.data());
+#endif // ENABLE_WORLD_COORDINATE
         ::glVertex3dv(m_grabbers[m_hover_id].center.data());
         glsafe(::glEnd());
 
@@ -143,40 +178,57 @@ void GLGizmoMove3D::on_render()
             shader->start_using();
             shader->set_uniform("emission_factor", 0.1f);
             // draw grabber
-            float mean_size = (float)((box.size().x() + box.size().y() + box.size().z()) / 3.0);
+            const Vec3d box_size = box.size();
+            const float mean_size = (float)((box_size.x() + box_size.y() + box_size.z()) / 3.0);
             m_grabbers[m_hover_id].render(true, mean_size);
             shader->stop_using();
         }
         render_grabber_extension((Axis)m_hover_id, box, false);
     }
+
+#if ENABLE_WORLD_COORDINATE
+    glsafe(::glPopMatrix());
+#endif // ENABLE_WORLD_COORDINATE
 }
 
 void GLGizmoMove3D::on_render_for_picking()
 {
     glsafe(::glDisable(GL_DEPTH_TEST));
 
+#if ENABLE_WORLD_COORDINATE
+    const Selection& selection = m_parent.get_selection();
+    const BoundingBoxf3& box = selection.get_bounding_box();
+    glsafe(::glPushMatrix());
+    transform_to_local(selection);
+#else
     const BoundingBoxf3& box = m_parent.get_selection().get_bounding_box();
+#endif // ENABLE_WORLD_COORDINATE
+
     render_grabbers_for_picking(box);
     render_grabber_extension(X, box, true);
     render_grabber_extension(Y, box, true);
     render_grabber_extension(Z, box, true);
+
+#if ENABLE_WORLD_COORDINATE
+    glsafe(::glPopMatrix());
+#endif // ENABLE_WORLD_COORDINATE
 }
 
 double GLGizmoMove3D::calc_projection(const UpdateData& data) const
 {
     double projection = 0.0;
 
-    Vec3d starting_vec = m_starting_drag_position - m_starting_box_center;
+    const Vec3d starting_vec = m_starting_drag_position - m_starting_box_center;
-    double len_starting_vec = starting_vec.norm();
+    const double len_starting_vec = starting_vec.norm();
     if (len_starting_vec != 0.0) {
         Vec3d mouse_dir = data.mouse_ray.unit_vector();
         // finds the intersection of the mouse ray with the plane parallel to the camera viewport and passing throught the starting position
         // use ray-plane intersection see i.e. https://en.wikipedia.org/wiki/Line%E2%80%93plane_intersection algebric form
         // in our case plane normal and ray direction are the same (orthogonal view)
         // when moving to perspective camera the negative z unit axis of the camera needs to be transformed in world space and used as plane normal
-        Vec3d inters = data.mouse_ray.a + (m_starting_drag_position - data.mouse_ray.a).dot(mouse_dir) / mouse_dir.squaredNorm() * mouse_dir;
+        const Vec3d inters = data.mouse_ray.a + (m_starting_drag_position - data.mouse_ray.a).dot(mouse_dir) / mouse_dir.squaredNorm() * mouse_dir;
         // vector from the starting position to the found intersection
-        Vec3d inters_vec = inters - m_starting_drag_position;
+        const Vec3d inters_vec = inters - m_starting_drag_position;
 
         // finds projection of the vector along the staring direction
         projection = inters_vec.dot(starting_vec.normalized());
@@ -190,8 +242,9 @@ double GLGizmoMove3D::calc_projection(const UpdateData& data) const
 
 void GLGizmoMove3D::render_grabber_extension(Axis axis, const BoundingBoxf3& box, bool picking) const
 {
-    float mean_size = (float)((box.size().x() + box.size().y() + box.size().z()) / 3.0);
+    const Vec3d box_size = box.size();
-    double size = m_dragging ? (double)m_grabbers[axis].get_dragging_half_size(mean_size) : (double)m_grabbers[axis].get_half_size(mean_size);
+    const float mean_size = (float)((box_size.x() + box_size.y() + box_size.z()) / 3.0);
+    const double size = m_dragging ? (double)m_grabbers[axis].get_dragging_half_size(mean_size) : (double)m_grabbers[axis].get_half_size(mean_size);
 
     std::array<float, 4> color = m_grabbers[axis].color;
     if (!picking && m_hover_id != -1) {
@@ -227,6 +280,18 @@ void GLGizmoMove3D::render_grabber_extension(Axis axis, const BoundingBoxf3& box
         shader->stop_using();
 }
 
+#if ENABLE_WORLD_COORDINATE
+void GLGizmoMove3D::transform_to_local(const Selection& selection) const
+{
+    const Vec3d center = selection.get_bounding_box().center();
+    glsafe(::glTranslated(center.x(), center.y(), center.z()));
+
+    if (!wxGetApp().obj_manipul()->get_world_coordinates()) {
+        const Transform3d orient_matrix = selection.get_volume(*selection.get_volume_idxs().begin())->get_instance_transformation().get_matrix(true, false, true, true);
+        glsafe(::glMultMatrixd(orient_matrix.data()));
+    }
+}
+#endif // ENABLE_WORLD_COORDINATE
 
 
 } // namespace GUI

src/slic3r/GUI/Gizmos/GLGizmoMove.hpp

@@ -11,14 +11,11 @@ class GLGizmoMove3D : public GLGizmoBase
 {
     static const double Offset;
 
-    Vec3d m_displacement;
+    Vec3d m_displacement{ Vec3d::Zero() };
-
+    double m_snap_step{ 1.0 };
-    double m_snap_step;
+    Vec3d m_starting_drag_position{ Vec3d::Zero() };
-
+    Vec3d m_starting_box_center{ Vec3d::Zero() };
-    Vec3d m_starting_drag_position;
+    Vec3d m_starting_box_bottom_center{ Vec3d::Zero() };
-    Vec3d m_starting_box_center;
-    Vec3d m_starting_box_bottom_center;
-
     GLModel m_vbo_cone;
 
 public:
@@ -36,7 +33,9 @@ protected:
     virtual bool on_init() override;
     virtual std::string on_get_name() const override;
     virtual bool on_is_activable() const override;
+#if !ENABLE_WORLD_COORDINATE
     virtual void on_start_dragging() override;
+#endif // !ENABLE_WORLD_COORDINATE
     virtual void on_stop_dragging() override;
     virtual void on_update(const UpdateData& data) override;
     virtual void on_render() override;
@@ -45,6 +44,9 @@ protected:
 private:
     double calc_projection(const UpdateData& data) const;
     void render_grabber_extension(Axis axis, const BoundingBoxf3& box, bool picking) const;
+#if ENABLE_WORLD_COORDINATE
+    void transform_to_local(const Selection& selection) const;
+#endif // ENABLE_WORLD_COORDINATE
 };
 
 

src/slic3r/GUI/Gizmos/GLGizmoRotate.cpp

@@ -365,7 +365,7 @@ void GLGizmoRotate::render_grabber_extension(const BoundingBoxf3& box, bool pick
 
 void GLGizmoRotate::transform_to_local(const Selection& selection) const
 {
-    glsafe(::glTranslated(m_center(0), m_center(1), m_center(2)));
+    glsafe(::glTranslated(m_center.x(), m_center.y(), m_center.z()));
 
     if (selection.is_single_volume() || selection.is_single_modifier() || selection.requires_local_axes()) {
         Transform3d orient_matrix = selection.get_volume(*selection.get_volume_idxs().begin())->get_instance_transformation().get_matrix(true, false, true, true);

src/slic3r/GUI/Gizmos/GLGizmosManager.cpp

@@ -617,7 +617,11 @@ bool GLGizmosManager::on_mouse(wxMouseEvent& evt)
         case Move:
         {
             // Apply new temporary offset
+#if ENABLE_WORLD_COORDINATE
+            selection.translate(get_displacement(), !wxGetApp().obj_manipul()->get_world_coordinates());
+#else
             selection.translate(get_displacement());
+#endif // ENABLE_WORLD_COORDINATE
             wxGetApp().obj_manipul()->set_dirty();
             break;
         }

src/slic3r/GUI/Selection.cpp

@@ -706,13 +706,31 @@ void Selection::translate(const Vec3d& displacement, bool local)
             if (local)
                 v.set_volume_offset(m_cache.volumes_data[i].get_volume_position() + displacement);
             else {
+#if ENABLE_WORLD_COORDINATE
+                const VolumeCache& volume_data = m_cache.volumes_data[i];
+                const Vec3d local_displacement = (volume_data.get_instance_rotation_matrix() * volume_data.get_instance_scale_matrix() * volume_data.get_instance_mirror_matrix()).inverse() * displacement;
+                v.set_volume_offset(volume_data.get_volume_position() + local_displacement);
+#else
                 const Vec3d local_displacement = (m_cache.volumes_data[i].get_instance_rotation_matrix() * m_cache.volumes_data[i].get_instance_scale_matrix() * m_cache.volumes_data[i].get_instance_mirror_matrix()).inverse() * displacement;
                 v.set_volume_offset(m_cache.volumes_data[i].get_volume_position() + local_displacement);
+#endif // ENABLE_WORLD_COORDINATE
             }
         }
         else if (m_mode == Instance) {
+#if ENABLE_WORLD_COORDINATE
+            if (is_from_fully_selected_instance(i)) {
+                if (local) {
+                    const VolumeCache& volume_data = m_cache.volumes_data[i];
+                    const Vec3d world_displacement = (volume_data.get_instance_rotation_matrix() * volume_data.get_instance_scale_matrix() * volume_data.get_instance_mirror_matrix()) * displacement;
+                    v.set_instance_offset(volume_data.get_instance_position() + world_displacement);
+                }
+                else
+                    v.set_instance_offset(m_cache.volumes_data[i].get_instance_position() + displacement);
+            }
+#else
             if (is_from_fully_selected_instance(i))
                 v.set_instance_offset(m_cache.volumes_data[i].get_instance_position() + displacement);
+#endif // ENABLE_WORLD_COORDINATE
             else {
                 const Vec3d local_displacement = (m_cache.volumes_data[i].get_instance_rotation_matrix() * m_cache.volumes_data[i].get_instance_scale_matrix() * m_cache.volumes_data[i].get_instance_mirror_matrix()).inverse() * displacement;
                 v.set_volume_offset(m_cache.volumes_data[i].get_volume_position() + local_displacement);
@@ -1249,10 +1267,28 @@ void Selection::render_sidebar_hints(const std::string& sidebar_field) const
     glsafe(::glPushMatrix());
 
     if (!boost::starts_with(sidebar_field, "layer")) {
-        const Vec3d& center = get_bounding_box().center();
+        const Vec3d center = get_bounding_box().center();
 
         if (is_single_full_instance() && !wxGetApp().obj_manipul()->get_world_coordinates()) {
-            glsafe(::glTranslated(center(0), center(1), center(2)));
+            glsafe(::glTranslated(center.x(), center.y(), center.z()));
+#if ENABLE_WORLD_COORDINATE
+            Transform3d orient_matrix = Transform3d::Identity();
+            if (boost::starts_with(sidebar_field, "position") || boost::starts_with(sidebar_field, "scale"))
+                orient_matrix = (*m_volumes)[*m_list.begin()]->get_instance_transformation().get_matrix(true, false, true, true);
+            else if (boost::starts_with(sidebar_field, "rotation")) {
+                if (boost::ends_with(sidebar_field, "x"))
+                    orient_matrix = (*m_volumes)[*m_list.begin()]->get_instance_transformation().get_matrix(true, false, true, true);
+                else if (boost::ends_with(sidebar_field, "y")) {
+                    const Vec3d& rotation = (*m_volumes)[*m_list.begin()]->get_instance_transformation().get_rotation();
+                    if (rotation.x() == 0.0)
+                        orient_matrix = (*m_volumes)[*m_list.begin()]->get_instance_transformation().get_matrix(true, false, true, true);
+                    else
+                        orient_matrix.rotate(Eigen::AngleAxisd(rotation.z(), Vec3d::UnitZ()));
+                }
+            }
+
+            glsafe(::glMultMatrixd(orient_matrix.data()));
+#else
             if (!boost::starts_with(sidebar_field, "position")) {
                 Transform3d orient_matrix = Transform3d::Identity();
                 if (boost::starts_with(sidebar_field, "scale"))
@@ -1271,15 +1307,24 @@ void Selection::render_sidebar_hints(const std::string& sidebar_field) const
 
                 glsafe(::glMultMatrixd(orient_matrix.data()));
             }
-        } else if (is_single_volume() || is_single_modifier()) {
+#endif // ENABLE_WORLD_COORDINATE
-            glsafe(::glTranslated(center(0), center(1), center(2)));
+        }
+        else if (is_single_volume() || is_single_modifier()) {
+            glsafe(::glTranslated(center.x(), center.y(), center.z()));
+#if ENABLE_WORLD_COORDINATE
+            if (!wxGetApp().obj_manipul()->get_world_coordinates()) {
+                const Transform3d orient_matrix = (*m_volumes)[*m_list.begin()]->get_instance_transformation().get_matrix(true, false, true, true);
+                glsafe(::glMultMatrixd(orient_matrix.data()));
+            }
+#else
             Transform3d orient_matrix = (*m_volumes)[*m_list.begin()]->get_instance_transformation().get_matrix(true, false, true, true);
             if (!boost::starts_with(sidebar_field, "position"))
                 orient_matrix = orient_matrix * (*m_volumes)[*m_list.begin()]->get_volume_transformation().get_matrix(true, false, true, true);
-
             glsafe(::glMultMatrixd(orient_matrix.data()));
-        } else {
+#endif // ENABLE_WORLD_COORDINATE
-            glsafe(::glTranslated(center(0), center(1), center(2)));
+        }
+        else {
+            glsafe(::glTranslated(center.x(), center.y(), center.z()));
             if (requires_local_axes()) {
                 const Transform3d orient_matrix = (*m_volumes)[*m_list.begin()]->get_instance_transformation().get_matrix(true, false, true, true);
                 glsafe(::glMultMatrixd(orient_matrix.data()));