Fix tree support fake roof

include/SupportInfillPart.h

@@ -33,7 +33,7 @@ class SupportInfillPart
                                                                             //   for infill_areas[x][n], x means the density level and n means the thickness
     std::vector<VariableWidthLines> wall_toolpaths; //!< Any walls go here, not in the areas, where they could be combined vertically (don't combine walls). Binned by inset_idx.
 
-    coord_t custom_line_distance;
+    coord_t custom_line_distance; //!< The distance between support infill lines. 0 means use the default line distance instead.
     bool use_fractional_config; //!< Request to use the configuration used to fill a partial layer height here, instead of the normal full layer height configuration.
 
     SupportInfillPart(const PolygonsPart& outline, coord_t support_line_width, bool use_fractional_config, int inset_count_to_generate = 0, coord_t custom_line_distance = 0);

include/sliceDataStorage.h

@@ -236,14 +236,16 @@ class SupportLayer
      * \param wall_line_count Wall-line count around the fill.
      * \param grow_layer_above (optional, default to 0) In cases where support shrinks per layer up, an appropriate offset may be nescesary.
      * \param unionAll (optional, default to false) Wether to 'union all' for the split into parts bit.
+     * \param custom_line_distance (optional, default to 0) Distance between lines of the infill pattern. custom_line_distance of 0 means use the default instead.
      */
     void fillInfillParts(
         const LayerIndex layer_nr,
         const std::vector<Polygons>& support_fill_per_layer,
         const coord_t support_line_width,
         const coord_t wall_line_count,
         const coord_t grow_layer_above = 0,
-        const bool unionAll = false);
+        const bool unionAll = false,
+        const coord_t custom_line_distance = 0);
 };
 
 class SupportStorage

src/TreeSupportTipGenerator.cpp

@@ -1165,7 +1165,7 @@ void TreeSupportTipGenerator::generateTips(
                 if (use_fake_roof)
                 {
                     storage.support.supportLayers[layer_idx]
-                        .fillInfillParts(layer_idx, support_roof_drawn, config.support_line_width, support_roof_line_distance, config.maximum_move_distance);
+                        .fillInfillParts(layer_idx, support_roof_drawn, config.support_line_width, 0, config.maximum_move_distance, false, support_roof_line_distance);
                     placed_support_lines_support_areas[layer_idx].add(TreeSupportUtils::generateSupportInfillLines(
                                                                           support_roof_drawn[layer_idx],
                                                                           config,

src/sliceDataStorage.cpp

@@ -721,7 +721,8 @@ void SupportLayer::fillInfillParts(
     const coord_t support_line_width,
     const coord_t wall_line_count,
     const coord_t grow_layer_above /*has default 0*/,
-    const bool unionAll /*has default false*/)
+    const bool unionAll /*has default false*/,
+    const coord_t custom_line_distance /*has default 0*/)
 {
     const Polygons& support_this_layer = support_fill_per_layer[layer_nr];
     const Polygons& support_layer_above
@@ -732,7 +733,7 @@ void SupportLayer::fillInfillParts(
     {
         for (const PolygonsPart& island_outline : support_areas.splitIntoParts(unionAll))
         {
-            support_infill_parts.emplace_back(island_outline, support_line_width, use_fractional_config, wall_line_count);
+            support_infill_parts.emplace_back(island_outline, support_line_width, use_fractional_config, wall_line_count, custom_line_distance);
         }
         use_fractional_config = false;
     }