Followup to #7045

Marlin/ubl.cpp

@@ -115,8 +115,9 @@
   void unified_bed_leveling::display_map(const int map_type) {
     constexpr uint8_t spaces = 8 * (GRID_MAX_POINTS_X - 2);
 
+    SERIAL_PROTOCOLPGM("\nBed Topography Report");
     if (map_type == 0) {
-      SERIAL_PROTOCOLLNPGM("\nBed Topography Report:\n");
+      SERIAL_PROTOCOLPGM(":\n\n");
       serial_echo_xy(0, GRID_MAX_POINTS_Y - 1);
       SERIAL_ECHO_SP(spaces + 3);
       serial_echo_xy(GRID_MAX_POINTS_X - 1, GRID_MAX_POINTS_Y - 1);
@@ -126,9 +127,10 @@
       serial_echo_xy(UBL_MESH_MAX_X, UBL_MESH_MAX_Y);
       SERIAL_EOL();
     }
-
-    if (map_type == 1) { SERIAL_PROTOCOLLNPGM("\nBed Topography Report for CSV:"); SERIAL_EOL(); }
-    if (map_type == 2) { SERIAL_PROTOCOLLNPGM("\nBed Topography Report for LCD:"); SERIAL_EOL(); }
+    else {
+      SERIAL_PROTOCOLPGM(" for ");
+      serialprintPGM(map_type == 1 ? PSTR("CSV:\n\n") : PSTR("LCD:\n\n"));
+    }
 
     const float current_xi = get_cell_index_x(current_position[X_AXIS] + (MESH_X_DIST) / 2.0),
                 current_yi = get_cell_index_y(current_position[Y_AXIS] + (MESH_Y_DIST) / 2.0);
@@ -142,14 +144,14 @@
 
         const float f = z_values[i][j];
         if (isnan(f)) {
-          serialprintPGM((map_type == 0) ? PSTR("    .   ") : PSTR("NAN"));
+          serialprintPGM(map_type == 0 ? PSTR("    .   ") : PSTR("NAN"));
         }
-        else {
+        else if (map_type <= 1) {
           // if we don't do this, the columns won't line up nicely
-          if ((map_type == 0) && f >= 0.0) SERIAL_CHAR(' ');
-          if (map_type <= 1) SERIAL_PROTOCOL_F(f, 3);
-          idle();
+          if (map_type == 0 && f >= 0.0) SERIAL_CHAR(' ');
+          SERIAL_PROTOCOL_F(f, 3);
         }
+        idle();
         if (map_type == 1 && i < GRID_MAX_POINTS_X - 1) SERIAL_CHAR(',');
 
         #if TX_BUFFER_SIZE > 0
@@ -162,7 +164,7 @@
         }
       }
       SERIAL_EOL();
-      if (j && (map_type == 0)) { // we want the (0,0) up tight against the block of numbers
+      if (j && map_type == 0) { // we want the (0,0) up tight against the block of numbers
         SERIAL_CHAR(' ');
         SERIAL_EOL();
       }
@@ -183,8 +185,7 @@
   bool unified_bed_leveling::sanity_check() {
     uint8_t error_flag = 0;
 
-    const int a = settings.calc_num_meshes();
-    if (a < 1) {
+    if (settings.calc_num_meshes() < 1) {
       SERIAL_PROTOCOLLNPGM("?Insufficient EEPROM storage for a mesh of this size.");
       error_flag++;
     }

Marlin/ultralcd.cpp

@@ -2094,11 +2094,11 @@ void kill_screen(const char* lcd_msg) {
       /*********************************************************/
       /************ Scale the box pixels appropriately *********/
       /*********************************************************/
-      x_map_pixels = ((MAP_MAX_PIXELS_X - 4) / GRID_MAX_POINTS_X) * GRID_MAX_POINTS_X;
-      y_map_pixels = ((MAP_MAX_PIXELS_Y - 4) / GRID_MAX_POINTS_Y) * GRID_MAX_POINTS_Y;
+      x_map_pixels = ((MAP_MAX_PIXELS_X - 4) / (GRID_MAX_POINTS_X)) * (GRID_MAX_POINTS_X);
+      y_map_pixels = ((MAP_MAX_PIXELS_Y - 4) / (GRID_MAX_POINTS_Y)) * (GRID_MAX_POINTS_Y);
 
-      pixels_per_X_mesh_pnt = x_map_pixels / GRID_MAX_POINTS_X;
-      pixels_per_Y_mesh_pnt = y_map_pixels / GRID_MAX_POINTS_Y;
+      pixels_per_X_mesh_pnt = x_map_pixels / (GRID_MAX_POINTS_X);
+      pixels_per_Y_mesh_pnt = y_map_pixels / (GRID_MAX_POINTS_Y);
 
       x_offset = MAP_UPPER_LEFT_CORNER_X + 1 + (MAP_MAX_PIXELS_X - x_map_pixels - 2) / 2;
       y_offset = MAP_UPPER_LEFT_CORNER_Y + 1 + (MAP_MAX_PIXELS_Y - y_map_pixels - 2) / 2;
@@ -2184,7 +2184,7 @@ void kill_screen(const char* lcd_msg) {
     void sync_plan_position();
 
     void _lcd_ubl_output_map_lcd() {
-      static int step_scaler=0;
+      static int16_t step_scaler = 0;
       int32_t signed_enc_pos;
 
       defer_return_to_status = true;
@@ -2194,11 +2194,10 @@ void kill_screen(const char* lcd_msg) {
         if (lcd_clicked) { return _lcd_ubl_map_lcd_edit_cmd(); }
         ENCODER_DIRECTION_NORMAL();
 
-        if (encoderPosition != 0) {
+        if (encoderPosition) {
           signed_enc_pos = (int32_t)encoderPosition;
           step_scaler += signed_enc_pos;
-          x_plot = (x_plot + step_scaler / ENCODER_STEPS_PER_MENU_ITEM);
-
+          x_plot += step_scaler / (ENCODER_STEPS_PER_MENU_ITEM);
           if (abs(step_scaler) >= ENCODER_STEPS_PER_MENU_ITEM)
             step_scaler = 0;
           refresh_cmd_timeout();