~ Improve the way to round lengths

dist/manifest-dev.json

@@ -1,5 +1,5 @@
 {
   "version": "1.9.6-dev",
-  "build": "202010121754",
+  "build": "202010140858",
   "url": "https://raw.githubusercontent.com/lairdubois/lairdubois-opencutlist-sketchup-extension/master/dist/ladb_opencutlist-dev.rbz"
 }

src/ladb_opencutlist/ruby/constants.rb

@@ -2,6 +2,6 @@ module Ladb::OpenCutList
 
     EXTENSION_NAME = 'OpenCutList'.freeze
     EXTENSION_VERSION = '1.9.6-dev'.freeze
-    EXTENSION_BUILD = '202010121754'.freeze
+    EXTENSION_BUILD = '202010140858'.freeze
 
 end

src/ladb_opencutlist/ruby/model/cutlist/groupdef.rb

@@ -36,7 +36,7 @@ def initialize(id)
     # -----
 
     def self.generate_group_id(material, material_attributes, std_info)
-      Digest::MD5.hexdigest("#{material.nil? ? 0 : material_attributes.uuid}#{material_attributes.type > MaterialAttributes::TYPE_UNKNOW ? '|' + DimensionUtils.instance.truncate_length_value(std_info[:width].to_l.to_f).to_s + 'x' + DimensionUtils.instance.truncate_length_value(std_info[:thickness].to_l.to_f).to_s : ''}")
+      Digest::MD5.hexdigest("#{material.nil? ? 0 : material_attributes.uuid}#{material_attributes.type > MaterialAttributes::TYPE_UNKNOW ? '|' + DimensionUtils.instance.round_length_value(std_info[:width].to_l.to_f).to_s + 'x' + DimensionUtils.instance.round_length_value(std_info[:thickness].to_l.to_f).to_s : ''}")
     end
 
     # -----

src/ladb_opencutlist/ruby/model/cutlist/partdef.rb

@@ -82,7 +82,7 @@ def self.generate_part_id(group_id, definition, definition_attributes, instance_
       end
 
       # Include scale into part_id to separate instances with the same definition, but different scale
-      Digest::MD5.hexdigest("#{group_id}|#{entity_id}|#{DimensionUtils.instance.truncate_length_value(instance_info.size.length.to_f).to_s}|#{DimensionUtils.instance.truncate_length_value(instance_info.size.width.to_f).to_s}|#{DimensionUtils.instance.truncate_length_value(instance_info.size.thickness.to_f).to_s}|#{instance_info.flipped.to_s}")
+      Digest::MD5.hexdigest("#{group_id}|#{entity_id}|#{DimensionUtils.instance.round_length_value(instance_info.size.length.to_f).to_s}|#{DimensionUtils.instance.round_length_value(instance_info.size.width.to_f).to_s}|#{DimensionUtils.instance.round_length_value(instance_info.size.thickness.to_f).to_s}|#{instance_info.flipped.to_s}")
 
     end
 

src/ladb_opencutlist/ruby/utils/dimension_utils.rb

@@ -427,11 +427,9 @@ def format_value(f, multiplier, precision, unit_sign)
     # -----
 
     # Take a float containing a length in inch
-    # and truncate it to "Sketchup" precision
-    def truncate_length_value(f)
-      return f if f == 0
-      factor = 10**4 # 4 = 0.0000 arbitrary length precision
-      (f * factor).floor / (factor * 1.0)
+    # and round it to "Sketchup" max precision
+    def round_length_value(f)
+      f.round(6)
     end
 
   end