Added a basic scatterplot for Magick backend

ext/grruby/extconf.rb

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

lib/rubyplot/artist/axis/x_axis.rb

@@ -21,6 +21,7 @@ def draw
       private
 
       def configure_title
+        @title = 'X axis' if @title == ''
         @texts << Rubyplot::Artist::Text.new(
           @title,
           self,

lib/rubyplot/artist/axis/y_axis.rb

@@ -11,14 +11,15 @@ def draw
           origin: @axes.origin[1],
           major_ticks: @major_ticks,
           minor_ticks: @minor_ticks,
-          major_ticks_count: @major_ticks_count 
+          major_ticks_count: @major_ticks_count
         )
         @texts.each(&:draw)
       end
 
       private
 
       def configure_title
+        @title = 'Y axis' if @title == ''
         @texts << Rubyplot::Artist::Text.new(
           @title,
           self,

lib/rubyplot/artist/figure.rb

@@ -91,16 +91,6 @@ def add_subplot!(nrow, ncol)
         @subplots[nrow][ncol]
       end
 
-      def set_background_gradient
-        Rubyplot.backend.set_base_image_gradient(
-          Rubyplot::Color::COLOR_INDEX[@theme_options[:background_colors][0]],
-          Rubyplot::Color::COLOR_INDEX[@theme_options[:background_colors][1]],
-          @width,
-          @height,
-          @theme_options[:background_direction]
-        )
-      end
-
       # Draw on a canvas and output to a file.
       #
       # @param file_name [String] File name to output to.

lib/rubyplot/artist/plot/area.rb

@@ -6,12 +6,12 @@ class Area < Artist::Plot::Base
 
         def initialize(*)
           super
-          @sort_data = true
+          @sort_data = false
         end
 
-        def data x_values, y_values=[]
-          y_values = Array.new(x_values.size) { |i| i } if y_values.empty?
-          x_values.sort! if @sort_data
+        def data y_values, x_values=[]
+          x_values = Array.new(y_values.size) { |i| i } if x_values.empty?
+          y_values.sort! if @sort_data
           super(x_values, y_values)
         end
 

lib/rubyplot/artist/plot/base.rb

@@ -34,7 +34,7 @@ def label=(label)
           @data[:label] = label
         end
 
-        def color= color
+        def color=(color)
           @data[:color] = color
         end
 

lib/rubyplot/artist/plot/line.rb

@@ -16,8 +16,8 @@ def initialize(*)
           @line_color = :black
         end
 
-        def data(x_values, y_values=[])
-          y_values = Array.new(x_values.size) { |i| i } if y_values.empty?
+        def data(y_values, x_values=[])
+          x_values = Array.new(y_values.size) { |i| i } if x_values.empty?
           super x_values, y_values
         end
 

lib/rubyplot/artist/plot/scatter.rb

@@ -41,7 +41,8 @@ def draw
             x: @data[:x_values],
             y: @data[:y_values],
             type: @marker_type,
-            fill_color: color,
+            fill_color: @marker_fill_color,
+            border_color: @marker_border_color,
             size: [@marker_size] * @data[:x_values].size
           )
         end

lib/rubyplot/backend/base.rb

@@ -22,8 +22,8 @@ class Base
       # @param valign [Symbol] Vertical alignment of the text from Artist::Text::VAlignment
       def draw_text(text,color:,font: nil,size:,
         font_weight: nil, halign: nil, valign: nil,
-        abs_x:, abs_y:,rotation: nil, stroke: nil)
-        raise NotImplementedError, "not implemented for #{self}."
+        abs_x:, abs_y:,rotation: nil, stroke: nil, abs: false)
+        raise NotImplementedError, "not implemented for #{__method__}."
       end
 
       # Draw a rectangle with optional fill.
@@ -33,8 +33,8 @@ def draw_text(text,color:,font: nil,size:,
       # @param x2 [Numeric] Upper right X co-ordinate.
       # @param x2 [Numeric] Upper right Y co-ordinate.
       def draw_rectangle(x1:,y1:,x2:,y2:, border_color: nil, fill_color: nil,
-        border_width: nil, border_type: nil)
-        raise NotImplementedError, "not implemented for #{self}."
+        border_width: nil, border_type: nil, abs: false)
+        raise NotImplementedError, "not implemented for #{__method__}."
       end
 
       # Draw multiple markers as specified by co-ordinates.
@@ -44,14 +44,14 @@ def draw_rectangle(x1:,y1:,x2:,y2:, border_color: nil, fill_color: nil,
       # @param marker_type [Symbol] A marker type from Rubyplot::MARKERS.
       # @param marker_color [Symbol] A color from Rubyplot::Color.
       # @param marker_size [Numeric] Size of the marker.
-      def draw_markers(x:, y:, marker_type:, marker_color:, marker_size:)
-        raise NotImplementedError, "not implemented for #{self}."
+      def draw_markers(x:, y:, type:, fill_color:, border_color:, size:)
+        raise NotImplementedError, "not implemented for #{__method__}."
       end
 
       # Draw a circle.n
       def draw_circle(x:, y:, radius:, border_width:, border_color:, border_type:,
         fill_color:, fill_opacity:)
-        raise NotImplementedError, "not implemented for #{self}."
+        raise NotImplementedError, "not implemented for #{__method__}."
       end
 
       # Draw a polygon and fill it with color. Co-ordinates are specified in (x,y)
@@ -62,23 +62,27 @@ def draw_circle(x:, y:, radius:, border_width:, border_color:, border_type:,
       # @param border_width [Numeric] Widht of the border.
       def draw_polygon(x:, y:, border_width:, border_type:, border_color:, fill_color:,
         fill_opacity:)
-        raise NotImplementedError, "not implemented for #{self}."
+        raise NotImplementedError, "not implemented for #{__method__}."
       end
 
-      def draw_lines(x:, y:, width:, type:, color:)
-        raise NotImplementedError, "not implemented for #{self}."
+      def draw_lines(x:, y:, width:, type:, color:, opacity:)
+        raise NotImplementedError, "not implemented for #{__method__}."
+      end
+
+      def draw_arrow(x1:, y1:, x2:, y2:, size:, style:)
+        raise NotImplementedError, "not implemented for #{__method__}."
       end
 
       def init_output_device file_name, device: :file
-        raise NotImplementedError, "not implemented for #{self}."
+        raise NotImplementedError, "not implemented for #{__method__}."
       end
 
       def draw_x_axis(minor_ticks:, origin:, major_ticks:, major_ticks_count:)
-        raise NotImplementedError, "not implemented for #{self}."
+        raise NotImplementedError, "not implemented for #{__method__}."
       end
 
       def draw_y_axis(minor_ticks:, origin:, major_ticks:, major_ticks_count:)
-        raise NotImplementedError, "not implemented for #{self}."
+        raise NotImplementedError, "not implemented for #{__method__}."
       end
     end # class Base
   end # module Backend