Add documentation for the new parameter introduced in previous commit…

…. Also added documentation for the custom_line_distance variable of SupportInfillPart

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

@@ -236,6 +236,7 @@ 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,