Class: Flightdeck::Metrics::BarChart

Inherits:
Chart
  • Object
show all
Defined in:
app/models/flightdeck/metrics/bar_chart.rb

Overview

Succeeded stacked under failed, per bucket.

Constant Summary collapse

BAR_GAP = 
2
CORNER = 
1.5

Constants inherited from Chart

Chart::GRID_INTERVALS, Chart::HEIGHT, Chart::PAD_BOTTOM, Chart::PAD_LEFT, Chart::PAD_RIGHT, Chart::PAD_TOP, Chart::WIDTH

Instance Attribute Summary

Attributes inherited from Chart

#points, #window

Instance Method Summary collapse

Methods inherited from Chart

#axis_max, #empty?, #format_time, #full_time, #gridlines, #height, #initialize, #plot_bottom, #plot_height, #plot_left, #plot_right, #plot_top, #plot_width, #width, #x_ticks

Constructor Details

This class inherits a constructor from Flightdeck::Metrics::Chart

Instance Method Details

#bars ⇒ Object 



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# File 'app/models/flightdeck/metrics/bar_chart.rb', line 10

def bars
  points.each_with_index.map do |point, index|
    x = plot_left + (slot_width * index)
    bar_width = [ slot_width - BAR_GAP, 1 ].max

    failed_height = height_for(point.failed)
    succeeded_height = height_for(point.succeeded)
    failed_y = plot_bottom - failed_height - succeeded_height

    {
      x: round(x + (BAR_GAP / 2.0)),
      width: round(bar_width),
      corner: CORNER,
      succeeded: { y: round(plot_bottom - succeeded_height), height: round(succeeded_height) },
      failed: { y: round(failed_y), height: round(failed_height) },
      empty: point.total.zero?,
      title: bar_title(point)
    }
  end
end