Class: Rough::SVG

Inherits:
Object
  • Object
show all
Defined in:
lib/rough/svg.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(**config_options) ⇒ SVG

Returns a new instance of SVG.



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# File 'lib/rough/svg.rb', line 9

def initialize(**config_options)
  @generator = Generator.new(**config_options)
end

Instance Attribute Details

#generator ⇒ Object (readonly)

Returns the value of attribute generator.



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# File 'lib/rough/svg.rb', line 7

def generator
  @generator
end

Class Method Details

.document(width, height, **options) ⇒ Object

Generate a complete SVG document



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# File 'lib/rough/svg.rb', line 108

def self.document(width, height, **options)
  svg = new(**options)
  content = yield svg
  %(<svg xmlns="http://www.w3.org/2000/svg" width="#{width}" height="#{height}">#{content}</svg>)
end

Instance Method Details

#arc(x, y, width, height, start, stop, closed: false, **options) ⇒ Object 



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# File 'lib/rough/svg.rb', line 95

def arc(x, y, width, height, start, stop, closed: false, **options)
  draw(@generator.arc(x, y, width, height, start, stop, closed: closed, **options))
end

#circle(x, y, diameter, **options) ⇒ Object 



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# File 'lib/rough/svg.rb', line 83

def circle(x, y, diameter, **options)
  draw(@generator.circle(x, y, diameter, **options))
end

#curve(points, **options) ⇒ Object 



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# File 'lib/rough/svg.rb', line 99

def curve(points, **options)
  draw(@generator.curve(points, **options))
end

#draw(drawable) ⇒ Object 



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# File 'lib/rough/svg.rb', line 13

def draw(drawable)
  sets = drawable.sets || []
  o = drawable.options || @generator.default_options
  precision = o.fixed_decimal_place_digits
  parts = []

  sets.each do |drawing|
    case drawing.type
    when :path
      attrs = {
        "d" => @generator.ops_to_path(drawing, precision),
        "stroke" => o.stroke,
        "stroke-width" => o.stroke_width.to_s,
        "fill" => "none"
      }
      if o.stroke_line_dash
        attrs["stroke-dasharray"] = o.stroke_line_dash.join(" ").strip
      end
      if o.stroke_line_dash_offset
        attrs["stroke-dashoffset"] = o.stroke_line_dash_offset.to_s
      end
      parts << _path_element(attrs)

    when :fillPath
      attrs = {
        "d" => @generator.ops_to_path(drawing, precision),
        "stroke" => "none",
        "stroke-width" => "0",
        "fill" => o.fill || ""
      }
      if drawable.shape == "curve" || drawable.shape == "polygon"
        attrs["fill-rule"] = "evenodd"
      end
      parts << _path_element(attrs)

    when :fillSketch
      fweight = o.fill_weight
      fweight = o.stroke_width / 2.0 if fweight < 0
      attrs = {
        "d" => @generator.ops_to_path(drawing, precision),
        "stroke" => o.fill || "",
        "stroke-width" => fweight.to_s,
        "fill" => "none"
      }
      if o.fill_line_dash
        attrs["stroke-dasharray"] = o.fill_line_dash.join(" ").strip
      end
      if o.fill_line_dash_offset
        attrs["stroke-dashoffset"] = o.fill_line_dash_offset.to_s
      end
      parts << _path_element(attrs)
    end
  end

  "<g>#{parts.join}</g>"
end

#ellipse(x, y, width, height, **options) ⇒ Object 



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# File 'lib/rough/svg.rb', line 79

def ellipse(x, y, width, height, **options)
  draw(@generator.ellipse(x, y, width, height, **options))
end

#line(x1, y1, x2, y2, **options) ⇒ Object

Convenience shape methods



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# File 'lib/rough/svg.rb', line 71

def line(x1, y1, x2, y2, **options)
  draw(@generator.line(x1, y1, x2, y2, **options))
end

#linear_path(points, **options) ⇒ Object 



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# File 'lib/rough/svg.rb', line 87

def linear_path(points, **options)
  draw(@generator.linear_path(points, **options))
end

#path(d, **options) ⇒ Object 



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# File 'lib/rough/svg.rb', line 103

def path(d, **options)
  draw(@generator.path(d, **options))
end

#polygon(points, **options) ⇒ Object 



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# File 'lib/rough/svg.rb', line 91

def polygon(points, **options)
  draw(@generator.polygon(points, **options))
end

#rectangle(x, y, width, height, **options) ⇒ Object 



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# File 'lib/rough/svg.rb', line 75

def rectangle(x, y, width, height, **options)
  draw(@generator.rectangle(x, y, width, height, **options))
end