[WIP] Ruby Association Grant 2019 work

.rubocop.yml

@@ -13,7 +13,7 @@ AllCops:
     - 'tmp/*'
     - '*.so'
   DisplayCopNames: true
-  TargetRubyVersion: 2.2
+  TargetRubyVersion: 2.3+
 
 # Preferred codebase style ---------------------------------------------
 Layout/ExtraSpacing:
@@ -34,7 +34,7 @@ Layout/SpaceInsideBlockBraces:
 Layout/SpaceInsideHashLiteralBraces:
   EnforcedStyle: no_space
 
-Layout/AlignParameters:
+Layout/ParameterAlignment:
   EnforcedStyle: with_fixed_indentation
 
 Style/EmptyElse:
@@ -128,6 +128,3 @@ Style/MethodDefParentheses:
 
 # Bans methods like `has_missing_data?`, `is_number?` and so on - started
 # with unnecessary has_ or is_.
-
-
-

ext/grruby/extconf.rb

@@ -1,6 +1,6 @@
 require 'mkmf'
 
-$CFLAGS << ' -I/home/sameer/Downloads/gr/include '
-$LDFLAGS << ' -L/home/sameer/Downloads/gr/lib -lGR -lm -Wl,-rpath,/home/sameer/Downloads/gr/lib '
+$CFLAGS << ' -I/usr/local/gr/include '
+$LDFLAGS << ' -L/usr/local/gr/lib -lGR -lm -Wl,-rpath,/usr/local/gr/lib '
 
 create_makefile('grruby/grruby')

lib/rubyplot.rb

@@ -13,6 +13,7 @@
 require 'rubyplot/figure'
 require 'rubyplot/subplot'
 require 'rubyplot/spi'
+require 'rubyplot/image'
 
 module Rubyplot
   LINE_TYPES = [
@@ -29,7 +30,7 @@ module Rubyplot
     :double_dot,
     :triple_dot,
   ].freeze
-  
+
   MARKER_TYPES = [
     :dot,
     :plus,
@@ -161,6 +162,12 @@ def stop_inline
       @iruby_inline = false
     end
 
+    def QuantumRange
+      # Setting Backend to Magick as Image is only implemented for Magick backend
+      @backend = Rubyplot::Backend::MagickWrapper.new
+      Rubyplot.backend.QuantumRange
+    end
+
     def set_backend b
       case b
       when :magick
@@ -171,4 +178,3 @@ def set_backend b
     end
   end
 end # module Rubyplot
-

lib/rubyplot/artist.rb

@@ -12,3 +12,4 @@
 require_relative 'artist/circle'
 require_relative 'artist/polygon'
 require_relative 'artist/arrow'
+require_relative 'artist/image'

lib/rubyplot/artist/image.rb

@@ -0,0 +1,51 @@
+module Rubyplot
+  module Artist
+    class Image
+
+      attr_accessor :rows, :columns, :pixel_array
+      attr_reader :QuantumRange
+
+      def initialize(columns,rows)
+        @rows = rows
+        @columns = columns
+        @pixel_array = []
+        @image = Rubyplot.backend.init_image(columns,rows)
+        @QuantumRange = Rubyplot.backend.QuantumRange
+      end
+
+      def imread(path)
+        @image = Rubyplot.backend.imread(path)
+        @rows = @image.rows
+        @columns = @image.columns
+      end
+
+      def imshow
+        Rubyplot.backend.output_device = Rubyplot.iruby_inline ? :iruby : :window
+        Rubyplot.backend.imshow(@image, Rubyplot.backend.output_device)
+      end
+
+      def imwrite(path)
+        Rubyplot.backend.imwrite(@image, path)
+      end
+
+      def export_pixels(x, y, columns, rows, map)
+        @pixel_array = []
+        map.size.times do
+          @pixel_array.push([])
+        end
+        flat_pix_array = Rubyplot.backend.export_pixels(@image, x, y, columns, rows, map)
+        map.size.times do |channel|
+          rows.times do |row|
+            @pixel_array[channel].push(flat_pix_array[(channel*rows*columns)+(columns*row),columns])
+          end
+        end
+        @pixel_array.flatten!(1) if map.size==1
+        @pixel_array
+      end
+
+      def import_pixels(x, y, columns, rows, map, pixels)
+        Rubyplot.backend.import_pixels(@image, x, y, columns, rows, map, pixels.to_a.flatten)
+      end
+    end # class Image
+  end # module Artist
+end # module Rubyplot

lib/rubyplot/artist/legend.rb

@@ -38,7 +38,8 @@ def configure_legend_color_box
           y1: @abs_y + BOTTOM_MARGIN,
           x2: @abs_x + @legend_box_size,
           y2: @abs_y + @legend_box_size + BOTTOM_MARGIN,
-          border_color: @color,
+          border_color: :black,
+          border_width: 2,
           fill_color: @color,
           abs: true
         )

lib/rubyplot/artist/plot/area.rb

@@ -2,7 +2,7 @@ module Rubyplot
   module Artist
     module Plot
       class Area < Artist::Plot::Base
-        attr_accessor :sort_data
+        attr_accessor :sort_data, :fill_opacity
 
         def initialize(*)
           super
@@ -15,7 +15,7 @@ def stacked(bool)
         end
 
         def data x_values, y_values
-          x_values, y_values = x_values.zip(y_values).sort.transpose if @sort_data
+          x_values, y_values = x_values.to_a.zip(y_values.to_a).sort.transpose if @sort_data
           super(x_values, y_values)
         end
 

lib/rubyplot/artist/plot/bar.rb

@@ -34,7 +34,7 @@ def spacing_ratio=(s_r)
 
         # Set Bar plot data.
         def data y_values
-          super(Array.new(y_values.size) { |i| i }, y_values)
+          super(Array.new(y_values.to_a.size) { |i| i }, y_values.to_a)
         end
 
         # Number of bars in this Bar plot

lib/rubyplot/artist/plot/base.rb

@@ -39,8 +39,8 @@ def color=(color)
         end
 
         def data(x_values, y_values)
-          @data[:x_values] = x_values
-          @data[:y_values] = y_values
+          @data[:x_values] = x_values.to_a
+          @data[:y_values] = y_values.to_a
         end
 
         def process_data

lib/rubyplot/artist/plot/box_plot.rb

@@ -14,15 +14,17 @@ class BoxPlot < Artist::Plot::Base
         attr_accessor :outlier_marker_type
         attr_accessor :outlier_marker_color
         attr_accessor :outlier_marker_size
-
+        attr_accessor :median_width
+
         def initialize(*)
           super
           @whiskers = 1.5
           @x_left_box = []
-          @median_color = :yellow
+          @median_color = :black
           @outlier_marker_type = :plus
           @outlier_marker_color = nil
           @outlier_marker_size = 1.0
+          @median_width = 3.0
         end
 
         def process_data
@@ -37,15 +39,21 @@ def process_data
         end
 
         def data vectors
-          @vectors = vectors
+          # @vectors = vectors.to_a unless vectors.is_a? Array
+          if vectors.is_a? Array
+            vectors.each_with_index { |_, idx| vectors[idx] = vectors[idx].to_a}
+            @vectors = vectors
+          else
+            @vectors = vectors.to_a
+          end
         end
 
         def draw
           @x_left_box.each_with_index do |x_left, i|
             draw_box x_left, i
             draw_whiskers x_left, i
             draw_outliers x_left, i
-            draw_median x_left, i    
+            draw_median x_left, i
           end
         end
 
@@ -111,7 +119,7 @@ def draw_outliers x_left, index
 
         def first_max_outlier_index vector, max
           return nil if vector.last >= max
-          vector.size.times do |i| 
+          vector.size.times do |i|
             if vector[i] > max
               return i
             end
@@ -131,7 +139,8 @@ def draw_median x_left, index
           Rubyplot::Artist::Line2D.new(self,
             x: [x_left, x_left + @box_width],
             y: [@medians[index], @medians[index]],
-            color: @median_color
+            color: @median_color,
+            width: @median_width
           ).draw
         end
 
@@ -141,7 +150,7 @@ def calculate_ranges!
           @medians = []
           @mins = []
           @maxs = []
-          
+
           @vectors.each do |sorted_vec|
             m = get_percentile 50, sorted_vec
             q1 = get_percentile 25, sorted_vec

lib/rubyplot/artist/plot/bubble.rb

@@ -3,7 +3,7 @@ module Artist
     module Plot
       class Bubble < Artist::Plot::Base
         # Width in pixels of the border of each bubble.
-        attr_reader :border_width
+        attr_accessor :border_width
         attr_reader :z_max, :z_min
         # Opacity of the circles
         attr_accessor :fill_opacity
@@ -16,8 +16,8 @@ def initialize(*)
         end
 
         def data x_values, y_values, z_values
-          super(x_values, y_values)
-          @data[:z_values] = z_values
+          super(x_values.to_a, y_values.to_a)
+          @data[:z_values] = z_values.to_a
         end
 
         def draw

lib/rubyplot/artist/plot/candle_stick.rb

@@ -2,10 +2,10 @@ module Rubyplot
   module Artist
     module Plot
       class CandleStick < Artist::Plot::Base
-        attr_accessor :lows
-        attr_accessor :highs
-        attr_accessor :opens
-        attr_accessor :closes
+        attr_reader :lows
+        attr_reader :highs
+        attr_reader :opens
+        attr_reader :closes
         attr_accessor :bar_width
         attr_accessor :x_left_candle
         attr_accessor :x_low_stick
@@ -24,6 +24,22 @@ def initialize(*)
           @border_color = :black
         end
 
+        def lows=(lows_arr)
+          @lows = lows_arr.to_a
+        end
+
+        def highs=(highs_arr)
+          @highs = highs_arr.to_a
+        end
+
+        def opens=(opens_arr)
+          @opens = opens_arr.to_a
+        end
+
+        def closes=(closes_arr)
+          @closes = closes_arr.to_a
+        end
+
         def process_data
           if @lows.size != @highs.size || @opens.size != @closes.size
             raise Rubyplot::SizeError, "all given parameters must be of equal size."