Class: SimplePlot

Inherits:
SimpleOutput::SimpleOutputPlugin show all
Defined in:
lib/simpleplot.rb

Overview

SimplePlot

Copyright 2014 Austen Higgins-Cassidy

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

Instance Method Summary collapse

Methods inherited from SimpleOutput::SimpleOutputPlugin

#advance_series, #annotate, #append_hash, #append_points, #append_series_name, #append_xy, #get_data_as_points, #get_data_as_xy, #get_series_hashes, #new_data, #new_data_check, #set_hash, #set_options, #set_points, #set_x_data, #set_xy, #set_y_data, #translate_name

Constructor Details

#initialize(name_template = "_plot", size = 512) ⇒ SimplePlot

Returns a new instance of SimplePlot.



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# File 'lib/simpleplot.rb', line 21

def initialize(name_template="_plot", size = 512)
   super()
   @name = name_template
   @size = size
   @series_next = 0;
end

Instance Method Details

#append_callback(x, y, name, options) ⇒ Object 



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# File 'lib/simpleplot.rb', line 62

def append_callback(x,y,name,options)
  xmin = x.min
  xmax = x.max
  ymin = y.min
  ymax = y.max
  @metadata[name]['length'] = @metadata[name]['length'] < x.size ? x.size : @metadata[name]['length']
  @metadata[name]['xmin'] = xmin < @metadata[name]['xmin'] ? xmin : @metadata[name]['xmin']
  @metadata[name]['xmax'] = xmax > @metadata[name]['xmax'] ? xmax : @metadata[name]['xmax']
  @metadata[name]['ymin'] = ymin < @metadata[name]['ymin'] ? ymin : @metadata[name]['ymin']
  @metadata[name]['ymax'] = ymax > @metadata[name]['ymax'] ? ymax : @metadata[name]['ymax']
  check_title(name, options) 
end

#check_title(name, options) ⇒ Object 



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# File 'lib/simpleplot.rb', line 32

def check_title(name, options)
  if options.has_key?('series')
    @metadata[name]['series_titles'] << options['series']
  else
    @metadata[name]['series_titles'] << "set-#{@series_next}"
    @series_next += 1
  end
end

#new_data_callback(name) ⇒ Object 



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# File 'lib/simpleplot.rb', line 41

def new_data_callback(name)
  name = translate_name(name)
  @metadata[name] = {'length' => 0, 'xlabel' => 'x', 'ylabel' => 'y', 'xmin' => 0 , 'xmax' => 10, 'ymin' => 0, 'ymax' => 10, 'series_titles' => [], 'histogram' => false, 'bincount' => 10, 'normalized' => false, 'xsize' => 640, 'ysize' => 480}
end

#options_callback(options) ⇒ Object 



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# File 'lib/simpleplot.rb', line 28

def options_callback(options)
  @metadata[@current_name].merge! options
end

#save ⇒ Object 



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# File 'lib/simpleplot.rb', line 75

def save()
  data = self.get_data_as_xy()
  data.each do |set_name, series|
    Gnuplot.open do |gp|
      Gnuplot::Plot.new(gp) do |plot|
        plot.terminal "png size #{@metadata[set_name]['xsize']},#{@metadata[set_name]['ysize']}"
       
        plot.output "#{set_name+@name}.png"
        #plot.set('size', '{1,1}')

        plot.title set_name

        plot.xlabel @metadata[set_name]['xlabel']
        plot.ylabel @metadata[set_name]['ylabel']
        plot.data = []
        max = @metadata[set_name]['ymax']
        min = @metadata[set_name]['ymin']
        if min == max
          max = min + 1
        end
        if @metadata[set_name]['histogram']
          size = @metadata[set_name]['length']
          bins = @metadata[set_name]['bincount'] 
          width = (max.to_f-min.to_f).to_f/bins.to_f
          #bins = size.to_f/width.to_f
          plot.yrange '[0:]'
          plot.xrange "[#{min}:#{max}]"
          plot.set('boxwidth',width*0.9)
          plot.set('offset', 'graph 0.05,0.05,0.05,0.0')
          plot.set('xtics' " #{min}, #{width.to_f}, #{max}")
          plot.set('tics', 'out nomirror')
          plot.set('style', 'fill solid 0.5')
        else
          plot.xrange "[#{@metadata[set_name]['xmin']}:#{@metadata[set_name]['xmax']}]"
          plot.yrange "[#{min}:#{max}]"
        end
        series.each_with_index do |line, index|
          
          if @metadata[set_name]['histogram']
            data_pts = line[1]
          else
            data_pts = line
          end
           
          d = Gnuplot::DataSet.new(data_pts) 
          d.title = @metadata[set_name]['series_titles'][index]
         
          if @metadata[set_name]['histogram']
            d.using = "(#{width.to_f}*floor($1/#{width.to_f})+#{width.to_f}/2.0):(1.0) smooth freq w boxes lc rgb\"blue\""
          else
             d.with = "linespoints"
             d.linewidth = 2
          end
          plot.data << d
          
        end
      end
    end
  end
end

#set_x_callback(data, name, options) ⇒ Object 



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# File 'lib/simpleplot.rb', line 46

def set_x_callback(data, name, options)
  xmin = data.min
  xmax = data.max
  @metadata[name]['xmin'] = xmin
  @metadata[name]['xmax'] = xmax
  @metadata[name]['length'] = (@metadata[name]['length'] < data.size) ? data.size : @metadata[name]['length']
  check_title(name, options)
end

#set_y_callback(data, name, options) ⇒ Object 



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# File 'lib/simpleplot.rb', line 55

def set_y_callback(data, name, options)
  ymin = data.min
  ymax = data.max
  @metadata[name]['ymin'] = ymin
  @metadata[name]['ymax'] = ymax
end