Fix asserts which would not compile. (#3741)

src/libslic3r/EmbossShape.hpp

@@ -105,7 +105,6 @@ struct EmbossShape
             // Note: image is only cache it is not neccessary to store
 
             // Store file data as plain string
-            assert(file_data != nullptr);
             ar(path, path_in_3mf, (file_data != nullptr) ? *file_data : std::string(""));
         }
         template<class Archive> void load(Archive &ar) {

src/libslic3r/PerimeterGenerator.cpp

@@ -475,7 +475,7 @@ static ClipperLib_Z::Paths clip_extrusion(const ClipperLib_Z::Path& subject, con
                 end = e2top;
             }
 
-            assert(start.z() > 0 && end.z() > 0);
+            assert(start.z() >= 0 && end.z() >= 0);
 
             // Interpolate extrusion line width.
             double length_sqr = (end - start).cast<double>().squaredNorm();
@@ -832,6 +832,8 @@ static ExtrusionEntityCollection traverse_extrusions(const PerimeterGenerator& p
             if (extrusion->is_closed) {
                 ExtrusionLoop extrusion_loop(std::move(paths), pg_extrusion.is_contour ? elrDefault : elrHole);
                 extrusion_loop.make_counter_clockwise();
+                // TODO: it seems in practice that ExtrusionLoops occasionally have significantly disconnected paths,
+                // triggering the asserts below. Is this a problem?
                 for (auto it = std::next(extrusion_loop.paths.begin()); it != extrusion_loop.paths.end(); ++it) {
                     assert(it->polyline.points.size() >= 2);
                     assert(std::prev(it)->polyline.last_point() == it->polyline.first_point());
@@ -843,12 +845,11 @@ static ExtrusionEntityCollection traverse_extrusions(const PerimeterGenerator& p
             else {
                 // Because we are processing one ExtrusionLine all ExtrusionPaths should form one connected path.
                 // But there is possibility that due to numerical issue there is poss
-                assert([&paths = std::as_const(paths)]() -> bool {
-                    for (auto it = std::next(paths.begin()); it != paths.end(); ++it)
-                        if (std::prev(it)->polyline.last_point() != it->polyline.first_point())
-                            return false;
-                    return true;
-                }());
+                // TODO: do we need some tolerance for disconnected paths below?
+                for (auto it = std::next(paths.begin()); it != paths.end(); ++it) {
+                    assert(it->polyline.points.size() >= 2);
+                    assert(std::prev(it)->polyline.last_point() == it->polyline.first_point());
+                }
                 ExtrusionMultiPath multi_path;
                 multi_path.paths.emplace_back(std::move(paths.front()));
 

src/libslic3r/Support/TreeSupport.cpp

@@ -138,12 +138,6 @@ static std::vector<std::pair<TreeSupportSettings, std::vector<size_t>>> group_me
     // as different settings in the same group may only occur in the tip, which uses the original settings objects from the meshes.
     for (size_t object_id : print_object_ids) {
         const PrintObject       &print_object  = *print.get_object(object_id);
-#ifndef NDEBUG
-        const PrintObjectConfig &object_config = print_object.config();
-#endif // NDEBUG
-        // Support must be enabled and set to Tree style.
-        assert(object_config.enable_support || object_config.enforce_support_layers > 0);
-        assert(object_config.support_type == stTree || object_config.support_style == smsOrganic);
 
         bool found_existing_group = false;
         TreeSupportSettings next_settings{ TreeSupportMeshGroupSettings{ print_object }, print_object.slicing_parameters() };
@@ -3537,11 +3531,10 @@ static void generate_support_areas(Print &print, const BuildVolume &build_volume
 
             if (print_object.config().support_style.value != smsOrganic &&
                 // Orca: use organic as default
-                print_object.config().support_style.value != smsDefault)
+                print_object.config().support_style.value != smsDefault) {
                 draw_areas(*print.get_object(processing.second.front()), volumes, config, overhangs, move_bounds,
                            bottom_contacts, top_contacts, intermediate_layers, layer_storage, throw_on_cancel);
-            else {
-                assert(print_object.config().support_style == smsOrganic);
+            } else {
                 organic_draw_branches(
                     *print.get_object(processing.second.front()), volumes, config, move_bounds, 
                     bottom_contacts, top_contacts, interface_placer, intermediate_layers, layer_storage, 

src/libslic3r/Support/TreeSupportCommon.cpp

@@ -23,7 +23,7 @@ TreeSupportMeshGroupSettings::TreeSupportMeshGroupSettings(const PrintObject &pr
 
     // Support must be enabled and set to Tree style.
     assert(config.enable_support || config.enforce_support_layers > 0);
-    assert(config.support_type == stTree || config.support_style == smsOrganic);
+    assert(is_tree(config.support_type));
 
     // Calculate maximum external perimeter width over all printing regions, taking into account the default layer height.
     coordf_t external_perimeter_width = 0.;

src/slic3r/GUI/Gizmos/GLGizmoSVG.cpp

@@ -396,7 +396,7 @@ IconManager::VIcons init_icons(IconManager &mng, const GuiCfg &cfg)
         "reflection_y.svg",  // reflection_y
     };
 
-    assert(init_types.size() == static_cast<size_t>(IconType::_count));
+    assert(filenames.size() == static_cast<size_t>(IconType::_count));
     std::string path = resources_dir() + "/images/";
     for (std::string &filename : filenames) filename = path + filename;
 

src/slic3r/GUI/Selection.cpp

@@ -2791,9 +2791,9 @@ static bool is_left_handed(const Transform3d& m)
 }
 
 #ifndef NDEBUG
-static bool is_rotation_xy_synchronized(const Vec3d &rot_xyz_from, const Vec3d &rot_xyz_to)
+static bool is_rotation_xy_synchronized(const Transform3d &rot_xyz_from, const Transform3d &rot_xyz_to)
 {
-    const Eigen::AngleAxisd angle_axis(Geometry::rotation_xyz_diff(rot_xyz_from, rot_xyz_to));
+    const Eigen::AngleAxisd angle_axis((rot_xyz_from * rot_xyz_to.inverse()).rotation());
     const Vec3d  axis = angle_axis.axis();
     const double angle = angle_axis.angle();
     if (std::abs(angle) < 1e-8)
@@ -2817,10 +2817,10 @@ static void verify_instances_rotation_synchronized(const Model &model, const GLV
         //assert(idx_volume_first != -1); // object without instances?
         if (idx_volume_first == -1)
             continue;
-        const Vec3d &rotation0 = volumes[idx_volume_first]->get_instance_rotation();
+        const Transform3d &rotation0 = volumes[idx_volume_first]->get_instance_transformation().get_matrix();
         for (int i = idx_volume_first + 1; i < (int)volumes.size(); ++i)
             if (volumes[i]->object_idx() == idx_object) {
-                const Vec3d &rotation = volumes[i]->get_instance_rotation();
+                const Transform3d &rotation = volumes[i]->get_instance_transformation().get_matrix();
                 assert(is_rotation_xy_synchronized(rotation, rotation0));
             }
     }