Module: Magick::RVG::StructureConstructors

Included in:
Embellishable, Pattern
Defined in:
lib/rvg/embellishable.rb

Overview

Methods that construct container objects within a container

Instance Method Summary collapse

Instance Method Details

#g(&block) ⇒ Object

Defines a group.

This method constructs a new Group container object. The styles and transforms specified on this object will be used by objects contained within, unless overridden by an inner container or the contained object itself. Define grouped elements by calling RVG::Embellishable methods within the associated block.



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# File 'lib/rvg/embellishable.rb', line 357

def g(&block)
  group = Group.new(&block)
  @content << group
  group
end

#rvg(cols, rows, x = 0, y = 0, &block) ⇒ Object

Establishes a new viewport. [x, y] is the coordinate of the upper-left corner within the containing viewport. This is a container method. Styles and transforms specified on this object will be used by objects contained within, unless overridden by an inner container or the contained object itself.



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# File 'lib/rvg/embellishable.rb', line 334

def rvg(cols, rows, x = 0, y = 0, &block)
  rvg = Magick::RVG.new(cols, rows, &block)
  begin
    x = Float(x)
    y = Float(y)
  rescue ArgumentError
    args = [cols, rows, x, y]
    raise ArgumentError, "at least one argument is not convertable to Float (got #{args.collect {|a| a.class}.join(', ')})"
  end
  rvg.corner(x, y)
  @content << rvg
  rvg
end