#852 decimals for xyz & e are now configurable

resources/ui_layout/extruder.ui

@@ -36,4 +36,6 @@ group:Retraction when tool is disabled (advanced settings for multi-extruder set
 	setting:idx:retract_length_toolchange
 	setting:idx:retract_restart_extra_toolchange
 group:Preview
-	reset_to_filament_color
+	reset_to_filament_color
+group:Gcode
+	setting:gcode_precision_e

resources/ui_layout/printer_fff.ui

@@ -15,6 +15,7 @@ group:silent_mode_event:Firmware
 	setting:gcode_flavor
 	setting:silent_mode
 	setting:remaining_times
+	setting:gcode_precision_xyz
 group:Cooling fan
 	line:Speedup
 		setting:label$Speedup time:fan_speedup_time

src/libslic3r/GCodeWriter.cpp

@@ -10,8 +10,8 @@
 #define FLAVOR_IS_NOT(val) this->config.gcode_flavor != val
 #define COMMENT(comment) if (this->config.gcode_comments && !comment.empty()) gcode << " ; " << comment;
 #define PRECISION(val, precision) std::fixed << std::setprecision(precision) << (val)
-#define XYZF_NUM(val) PRECISION(val, 3)
-#define E_NUM(val) PRECISION(val, 5)
+#define XYZF_NUM(val) PRECISION(val, this->config.gcode_precision_xyz.value)
+#define E_NUM(val) PRECISION(val, this->config.gcode_precision_e.get_at(m_tool->id()))
 
 namespace Slic3r {
 

src/libslic3r/Preset.cpp

@@ -666,7 +666,9 @@ const std::vector<std::string>& Preset::printer_options()
             "fan_kickstart",
             "fan_speedup_overhangs",
             "fan_speedup_time",
-            "gcode_flavor", "use_relative_e_distances",
+            "gcode_flavor", 
+            "gcode_precision_xyz",
+            "use_relative_e_distances",
             "use_firmware_retraction", "use_volumetric_e", "variable_layer_height",
             "min_length",
             //FIXME the print host keys are left here just for conversion from the Printer preset to Physical Printer preset.

src/libslic3r/Print.cpp

@@ -120,6 +120,8 @@ bool Print::invalidate_state_by_config_options(const std::vector<t_config_option
         "gap_fill_speed",
         "gcode_comments",
         "gcode_label_objects",
+        "gcode_precision_xyz",
+        "gcode_precision_e",
         "infill_acceleration",
         "layer_gcode",
         "min_fan_speed",

src/libslic3r/PrintConfig.cpp

@@ -1876,6 +1876,20 @@ void PrintConfigDef::init_fff_params()
     def->mode = comAdvanced;
     def->set_default_value(new ConfigOptionBool(1));
 
+    def = this->add("gcode_precision_xyz", coInt);
+    def->label = L("xyz decimals");
+    def->category = OptionCategory::output;
+    def->tooltip = L("Choose how many digit after the dot for xyz coordinates.");
+    def->mode = comExpert;
+    def->set_default_value(new ConfigOptionInt(3));
+
+    def = this->add("gcode_precision_e", coInts);
+    def->label = L("Extruder decimals");
+    def->category = OptionCategory::output;
+    def->tooltip = L("Choose how many digit after the dot for extruder moves.");
+    def->mode = comExpert;
+    def->set_default_value(new ConfigOptionInts{ 5 });
+
     def = this->add("high_current_on_filament_swap", coBool);
     def->label = L("High extruder current on filament swap");
     def->category = OptionCategory::general;
@@ -4182,6 +4196,7 @@ void PrintConfigDef::init_extruder_option_keys()
         "extruder_offset",
         "extruder_fan_offset",
         "extruder_temperature_offset",
+        "gcode_precision_e",
         "tool_name",
         "retract_length",
         "retract_lift",

src/libslic3r/PrintConfig.hpp

@@ -1046,6 +1046,8 @@ public:
     ConfigOptionBool                gcode_comments;
     ConfigOptionEnum<GCodeFlavor>   gcode_flavor;
     ConfigOptionBool                gcode_label_objects;
+    ConfigOptionInt                 gcode_precision_xyz;
+    ConfigOptionInts                gcode_precision_e;
     ConfigOptionString              layer_gcode;
     ConfigOptionString              feature_gcode;
     ConfigOptionFloat               max_print_speed;
@@ -1154,6 +1156,8 @@ protected:
         OPT_PTR(gcode_comments);
         OPT_PTR(gcode_flavor);
         OPT_PTR(gcode_label_objects);
+        OPT_PTR(gcode_precision_xyz);
+        OPT_PTR(gcode_precision_e);
         OPT_PTR(layer_gcode);
         OPT_PTR(feature_gcode);
         OPT_PTR(max_print_speed);