Source code for simu.lib.mask_random

'''
Created on 6 nov. 2017

@author: user
'''
import common.num.array_square_cell as asc
import numpy as np


class MaskRandom(asc.ArraySquareCell):
    
    def __init__(self, cel_x=1, ncel_y=1, size_cm=1):        
        super().__init__(cel_x, ncel_y, size_cm)
        
        
    def random_mask(self, p_percent_empty):
        if (p_percent_empty > 1):
            print('ERROR: pEmpty < 1 ')
            return None
        max_val = p_percent_empty*1000
        self.random_value(0,999)
        
        idx_empty = np.where(self.ar_val < max_val)
        idx_full = np.where(self.ar_val >= max_val)
        self.ar_val[idx_empty] = 1  # photon no stopped
        self.ar_val[idx_full] = 0   # photon  stopped
        self.perct_open_goal = p_percent_empty
        #print("percent result:",idx_empty[0].size/self.ar_val.size)