Class: GeoPattern::PlaidPattern

Inherits:
BasePattern show all
Defined in:
lib/geo_pattern/pattern/plaid_pattern.rb

Constant Summary

Constants inherited from BasePattern

BasePattern::FILL_COLOR_DARK, BasePattern::FILL_COLOR_LIGHT, BasePattern::OPACITY_MAX, BasePattern::OPACITY_MIN, BasePattern::STROKE_COLOR, BasePattern::STROKE_OPACITY

Instance Attribute Summary

Attributes inherited from BasePattern

#hash, #svg

Instance Method Summary collapse

Methods inherited from BasePattern

#fill_color, #hex_val, #map, #opacity

Instance Method Details

#render_to_svg ⇒ Object 



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# File 'lib/geo_pattern/pattern/plaid_pattern.rb', line 3

def render_to_svg
  height = 0
  width  = 0

  # horizontal stripes
  i = 0
  18.times do
    space   = hex_val(i, 1)
    height += space + 5

    val           = hex_val(i+1, 1)
    opacity       = opacity(val)
    fill          = fill_color(val)
    stripe_height = val + 5

    svg.rect(0, height, "100%", stripe_height, {
          "opacity"   => opacity,
          "fill"      => fill
    })
    height += stripe_height
    i += 2
  end

  # vertical stripes
  i = 0
  18.times do
    space  = hex_val(i, 1)
    width += space + 5

    val          = hex_val(i+1, 1)
    opacity      = opacity(val)
    fill         = fill_color(val)
    stripe_width = val + 5

    svg.rect(width, 0, stripe_width, "100%", {
          "opacity"   => opacity,
          "fill"      => fill
    })
    width += stripe_width
    i += 2
  end

  svg.set_width(width)
  svg.set_height(height)
end