Add Scatter charts

1 files changed, 31 insertions, 0 deletions

diff --git a/lib/axlsx/drawing/named_axis_data.rb b/lib/axlsx/drawing/named_axis_data.rb
new file mode 100644
index 00000000..b249196f
--- /dev/null
+++ b/lib/axlsx/drawing/named_axis_data.rb
@@ -0,0 +1,31 @@
+# encoding: UTF-8
+module Axlsx
+  # The ValAxisData class manages the values for a chart value series.
+  class NamedAxisData < CatAxisData
+
+    def initialize(name, data=[])
+      super(data)
+      @name = name
+    end
+
+    # Serializes the value axis data
+    # @param [Nokogiri::XML::Builder] xml The document builder instance this objects xml will be added to.
+    # @return [String]
+    def to_xml(xml)
+      xml.send(@name) {
+        xml.numRef {
+          xml.f Axlsx::cell_range(@list)
+          xml.numCache {
+            xml.formatCode 'General'
+            xml.ptCount :val=>size
+            each_with_index do |item, index|
+              v = item.is_a?(Cell) ? item.value : item
+              xml.pt(:idx=>index) { xml.v v }
+            end
+          }
+        }
+      }
+    end
+  end
+
+end