Class: GeoPattern::SVG

Inherits:
Object
  • Object
show all
Includes:
Comparable
Defined in:
lib/geo_pattern/svg.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ SVG

Returns a new instance of SVG.



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# File 'lib/geo_pattern/svg.rb', line 5

def initialize
  @width      = 100
  @height     = 100
  @svg_string = ""
end

Class Method Details

.as_comment(str) ⇒ Object 



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# File 'lib/geo_pattern/svg.rb', line 69

def self.as_comment(str)
  "<!-- #{str} -->"
end

Instance Method Details

#<=>(other) ⇒ Object 



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# File 'lib/geo_pattern/svg.rb', line 73

def <=>(other)
  to_s <=> other.to_s
end

#circle(cx, cy, r, args = {}) ⇒ Object 



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# File 'lib/geo_pattern/svg.rb', line 35

def circle(cx, cy, r, args={})
  @svg_string << %Q{<circle cx="#{cx}" cy="#{cy}" r="#{r}" #{write_args(args)} />}
end

#group(elements, args = {}) ⇒ Object 



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# File 'lib/geo_pattern/svg.rb', line 47

def group(elements, args={})
  @svg_string << %Q{<g #{write_args(args)}>}
  elements.each {|e| eval e}
  @svg_string << %Q{</g>}
end

#path(str, args = {}) ⇒ Object 



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# File 'lib/geo_pattern/svg.rb', line 39

def path(str, args={})
  @svg_string << %Q{<path d="#{str}" #{write_args(args)} />}
end

#polyline(str, args = {}) ⇒ Object 



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# File 'lib/geo_pattern/svg.rb', line 43

def polyline(str, args={})
  @svg_string << %Q{<polyline points="#{str}" #{write_args(args)} />}
end

#rect(x, y, width, height, args = {}) ⇒ Object 



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# File 'lib/geo_pattern/svg.rb', line 31

def rect(x, y, width, height, args={})
  @svg_string << %Q{<rect x="#{x}" y="#{y}" width="#{width}" height="#{height}" #{write_args(args)} />}
end

#set_height(height) ⇒ Object 



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# File 'lib/geo_pattern/svg.rb', line 15

def set_height(height)
  @height = height.floor
end

#set_width(width) ⇒ Object 



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# File 'lib/geo_pattern/svg.rb', line 11

def set_width(width)
  @width = width.floor
end

#svg_closer ⇒ Object 



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# File 'lib/geo_pattern/svg.rb', line 23

def svg_closer
  "</svg>"
end

#svg_header ⇒ Object 



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# File 'lib/geo_pattern/svg.rb', line 19

def svg_header
  %Q{<svg xmlns="http://www.w3.org/2000/svg" width="#{@width}" height="#{@height}">}
end

#to_s ⇒ Object 



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# File 'lib/geo_pattern/svg.rb', line 27

def to_s
  svg_header + @svg_string + svg_closer
end

#write_args(args) ⇒ Object 



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# File 'lib/geo_pattern/svg.rb', line 53

def write_args(args)
  str = ""
  args.each {|key, value|
    if value.is_a?(Hash)
      str << %Q{#{key}="}
      value.each {|k, v|
        str << %Q{#{k}:#{v};}
      } 
      str << %Q{" }
    else
      str << %Q{#{key}="#{value}" }
    end
  }
  str
end