Method: RBPDF#setPageUnit

Defined in:
lib/rbpdf.rb

#setPageUnit(unit) ⇒ Object Also known as: set_page_unit

Set the units of measure for the document.

@param string :unit

User measure unit. Possible values are:

  • pt: point

  • mm: millimeter (default)

  • cm: centimeter

  • in: inch

A point equals 1/72 of inch, that is to say about 0.35 mm (an inch being 2.54 cm). This is a very common unit in typography; font sizes are expressed in that unit.

@access public
@since 3.0.015 (2008-06-06)


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# File 'lib/rbpdf.rb', line 580

def setPageUnit(unit)
  unit = unit.downcase
  # Set scale factor
  case unit
  when 'px', 'pt'; @k=1.0     # points
  when 'mm'; @k = @dpi / 25.4 # millimeters
  when 'cm'; @k = @dpi / 2.54 # centimeters
  when 'in'; @k = @dpi        # inches
  # unsupported unit
  else Error("Incorrect unit: #{unit}")
  end
  @pdfunit = unit
  unless @cur_orientation.nil?
    setPageOrientation(@cur_orientation)
  end
end