File format conversions
=======================

File format can be changed by reading the file and then writing in desired format.
In many cases the conversion works in distributed mode, too::

	def convert_format():
		"""
		Demonstrates file format conversion.
		"""

		# Read image
		img = pi.read(input_file('simple_structures.vol'))

		# Write in any supported format
		pi.writeraw(img, output_file('vol_to_raw'))
		pi.writetif(img, output_file('vol_to_tif'))