Adds rotate on stl import (#3116)

* Adds rotate on stl import

* Fixed comma placement

* update location of rotate variables

---------

Co-authored-by: SoftFever <softfeverever@gmail.com>

localization/i18n/OrcaSlicer.pot

@@ -11557,6 +11557,12 @@ msgstr ""
 msgid "Note: Repetier version at least 0.90.0 is required."
 msgstr ""
 
+msgid "Preferred orientation"
+msgstr ""
+
+msgid "Automatically orient stls on the Z-axis upon initial import"
+msgstr ""
+
 #, possible-boost-format
 msgid ""
 "HTTP status: %1%\n"

src/libslic3r/Preset.cpp

@@ -878,7 +878,7 @@ static std::vector<std::string> s_Preset_printer_options {
     "cooling_tube_retraction",
     "cooling_tube_length", "high_current_on_filament_swap", "parking_pos_retraction", "extra_loading_move", "purge_in_prime_tower", "enable_filament_ramming",
     "z_offset",
-    "disable_m73",
+    "disable_m73", "preferred_orientation"
     };
 
 static std::vector<std::string> s_Preset_sla_print_options {

src/libslic3r/PrintConfig.cpp

@@ -468,6 +468,15 @@ void PrintConfigDef::init_common_params()
     def->mode = comSimple;
     def->set_default_value(new ConfigOptionFloat(100.0));
 
+    def = this->add("preferred_orientation", coFloat);
+    def->label = L("Preferred orientation");
+    def->tooltip = L("Automatically orient stls on the Z-axis upon initial import");
+    def->sidetext = L("°");
+    def->max = 360;
+    def->min = -360;
+    def->mode = comAdvanced;
+    def->set_default_value(new ConfigOptionFloat(0.0));
+
     // Options used by physical printers
 
     def = this->add("preset_names", coStrings);

src/libslic3r/PrintConfig.hpp

@@ -1173,7 +1173,8 @@ PRINT_CONFIG_CLASS_DERIVED_DEFINE(
     ((ConfigOptionBools,               activate_chamber_temp_control))
     ((ConfigOptionInts ,               chamber_temperature))
     ((ConfigOptionBool,                is_infill_first))
-
+    
+    ((ConfigOptionFloat,               preferred_orientation))
 
 
 )

src/slic3r/GUI/Plater.cpp

@@ -2524,7 +2524,7 @@ Plater::priv::priv(Plater *q, MainFrame *main_frame)
     , config(Slic3r::DynamicPrintConfig::new_from_defaults_keys({
         "printable_area", "bed_exclude_area", "bed_custom_texture", "bed_custom_model", "print_sequence",
         "extruder_clearance_radius", "extruder_clearance_height_to_lid", "extruder_clearance_height_to_rod", "skirt_loops", "skirt_speed", "skirt_distance",
-        "brim_width", "brim_object_gap", "brim_type", "nozzle_diameter", "single_extruder_multi_material",
+        "brim_width", "brim_object_gap", "brim_type", "nozzle_diameter", "single_extruder_multi_material", "preferred_orientation",
         "enable_prime_tower", "wipe_tower_x", "wipe_tower_y", "prime_tower_width", "prime_tower_brim_width", "prime_volume",
         "extruder_colour", "filament_colour", "material_colour", "printable_height", "printer_model", "printer_technology",
         // These values are necessary to construct SlicingParameters by the Canvas3D variable layer height editor.
@@ -3825,8 +3825,12 @@ std::vector<size_t> Plater::priv::load_files(const std::vector<fs::path>& input_
 
                 if (type_any_amf && is_xxx) imperial_units = true;
 
-                for (auto obj : model.objects)
-                    if (obj->name.empty()) obj->name = fs::path(obj->input_file).filename().string();
+                for (auto obj : model.objects) {
+                    if (obj->name.empty()) {
+                        obj->name = fs::path(obj->input_file).filename().string();
+                    }
+                    obj->rotate(Geometry::deg2rad(config->opt_float("preferred_orientation")), Axis::Z);
+                }
 
                 if (plate_data.size() > 0) {
                     partplate_list.load_from_3mf_structure(plate_data);

src/slic3r/GUI/Tab.cpp

@@ -3389,6 +3389,7 @@ void TabPrinter::build_fff()
         optgroup->append_single_option_line("nozzle_volume");
         optgroup->append_single_option_line("best_object_pos");
         optgroup->append_single_option_line("z_offset");
+        optgroup->append_single_option_line("preferred_orientation");
 
         // ConfigOptionDef def;
         //    def.type =  coInt,