text: #*********************************************************************************
  #
  # Inviwo - Interactive Visualization Workshop
  #
  # Copyright (c) 2013-2018 Inviwo Foundation
  # All rights reserved.
  #
  # Redistribution and use in source and binary forms, with or without
  # modification, are permitted provided that the following conditions are met:
  #
  # 1. Redistributions of source code must retain the above copyright notice, this
  # list of conditions and the following disclaimer.
  # 2. Redistributions in binary form must reproduce the above copyright notice,
  # this list of conditions and the following disclaimer in the documentation
  # and/or other materials provided with the distribution.
  #
  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  # DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
  # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  # 
  #*********************************************************************************
  
  import time
  import json
  import inviwopy
  
  def saveCanvas(canvas : inviwopy.CanvasProcessor , name = None):
  	if name == None: name = canvas.identifier
  	canvas.snapshot(inviwopy.app.getOutputPath() + "/imgtest/"+name+".png")
  
  class Measurements:
  	def __init__(self):
  		self.m = []
  
  	def add(self, name, quantity, unit, value):
  		self.m.append({"name": name, 'quantity' : quantity, "unit": unit, 'value' : value})
  
  	def addCount(self, name, value):
  		self.add(name, "count", "", value)
  
  	def addTime(self, name, value):
  		self.add(name, "time", "s", value)
  
  	def addFrequency(self, name, value):
  		self.add(name, "frequency", "Hz", value)
  
  	def addFraction(self, name, value):
  		self.add(name, "fraction", "%", value)
  
  	def save(self):
  		with open(inviwopy.app.getOutputPath() + "/stats.json", 'w') as f:
   			json.dump(self.m, f, indent=4, separators=(',', ': '))
  
  