Class: SimplePlot

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

Overview

SimplePlot

GnuPlot interface to simpleoutput

 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, #appendHash, #appendPoints, #appendXY, #append_series_name, #getDataAsPoints, #getDataAsXY, #getSeriesHashes, #newData, #setHash, #setOptions, #setPoints, #setXData, #setXY, #setYData, #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 23

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

Instance Method Details

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



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# File 'lib/simpleplot.rb', line 97

def append_callback(x,y,name,options)
  xmin = x.min
  xmax = x.max
  ymin = y.min
  ymax = y.max
  if !@metadata.has_key?(name)
    new_data_callback(name)
  end
  @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 67

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 76

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 31

def options_callback(options)
  if options.has_key?('xsize')
    @metadata[@current_name]['xsize'] = options['xsize']
  end
  if options.has_key?('ysize')
    @metadata[@current_name]['ysize'] = options['ysize']
  end
  if options.has_key?('xlabel')
    @metadata[@current_name]['xlabel'] = options['xlabel']
  end
  if options.has_key?('ylabel')
    @metadata[@current_name]['ylabel'] = options['ylabel']
  end
  if options.has_key?('histogram')
    @metadata[@current_name]['histogram'] = options['histogram']
  end
  if options.has_key?('xmin')
    @metadata[@current_name]['xmin'] = options['xmin']
  end
  if options.has_key?('xmax')
    @metadata[@current_name]['xmax'] = options['xmax']
  end
  if options.has_key?('ymin')
    @metadata[@current_name]['ymin'] = options['ymin']
  end
  if options.has_key?('ymax')
    @metadata[@current_name]['ymax'] = options['ymax']
  end
  if options.has_key?('bincount')
    @metadata[@current_name]['bincount'] = options['bincount']
  end
  if options.has_key?('normalized')
    @metadata[@current_name]['normalized'] = options['normalized']
  end
end

#save ⇒ Object 



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# File 'lib/simpleplot.rb', line 114

def save()
  data = self.getDataAsXY()
  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 = []
       
        if @metadata[set_name]['histogram']
          size = @metadata[set_name]['length']
          bins = @metadata[set_name]['bincount']
          max = @metadata[set_name]['ymax']
          min = @metadata[set_name]['ymin']
         
          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 "[#{@metadata[set_name]['ymin']}:#{@metadata[set_name]['ymax']}]"
        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 81

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 90

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