Module: HexaPDF::Content::LineJoinStyle

Defined in:
lib/hexapdf/content/graphics_state.rb

Overview

Defines all available line join styles as constants. Each line join style is an instance of NamedValue. For use with Content::GraphicsState#line_join_style.

See: PDF1.7 s8.4.3.4

Constant Summary collapse

MITER_JOIN =

The outer lines of the two segments continue until the meet at an angle.

NamedValue.new(:miter, 0)
ROUND_JOIN =

An arc of a circle is drawn around the point where the segments meet.

NamedValue.new(:round, 1)
BEVEL_JOIN =

The two segments are finished with butt caps and the space between the ends is filled with a triangle.

NamedValue.new(:bevel, 2)

Class Method Summary collapse

Class Method Details

.normalize(style) ⇒ Object

Returns the argument normalized to a valid line join style.

  • 0 or :miter can be used for the MITER_JOIN style.

  • 1 or :round can be used for the ROUND_JOIN style.

  • 2 or :bevel can be used for the BEVEL_JOIN style.

  • Otherwise an error is raised.



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# File 'lib/hexapdf/content/graphics_state.rb', line 120

def self.normalize(style)
  case style
  when :miter, 0 then MITER_JOIN
  when :round, 1 then ROUND_JOIN
  when :bevel, 2 then BEVEL_JOIN
  else
    raise ArgumentError, "Unknown line join style: #{style}"
  end
end