From 7629eb82cc5e05ef514912d9f393d0f42feb8c93 Mon Sep 17 00:00:00 2001 From: Ian Jauslin Date: Thu, 26 Oct 2017 20:02:17 +0000 Subject: As presented at Rutgers University on 2017-10-26 --- figs/atoms.fig/nematic.py | 90 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 figs/atoms.fig/nematic.py (limited to 'figs/atoms.fig/nematic.py') diff --git a/figs/atoms.fig/nematic.py b/figs/atoms.fig/nematic.py new file mode 100644 index 0000000..5c779c0 --- /dev/null +++ b/figs/atoms.fig/nematic.py @@ -0,0 +1,90 @@ +#!/usr/bin/env python3 + +from math import * +import random + +# size of space +L=30 +# number of rods +N=75 +# aspect ratio +a=10 +# spread in theta angle +spread=pi/30 + +# check whether two rods overlap +def check_overlap(rod1,rod2): + # relative placement + relative_pos=unrotate(subtract(rod2[0],rod1[0]), rod1[1]) + if(abs(relative_pos[0])<2 and abs(relative_pos[1])<2 and abs(relative_pos[2])<2): + return(True) + # relative angle + relative_ang=cart_to_spherical(unrotate(spherical_to_cart(rod2[1]), rod1[1])) + # exclusion volume + # rotate other rod + relative_pos=unrotate(relative_pos, [0,relative_ang[1]]) + #if(abs(relative_pos[1])<2 and abs(relative_pos[0])-21 and abs(c)<1.0001): + if(c>0): + return([w[0],0]) + else: + return([w[0],pi]) + if(s>=0): + return([w[0],acos(c)]) + return([w[0],2*pi-acos(c)]) + +# configuration +config=[] +# add rods +while len(config)