kirubz

-- rotates a point around the (0,0) point by degrees
-- returns new point object
function rotatePoint( point, degrees )
    
   local x, y = point.x, point.y
   local theta = math.rad( degrees )
   
   local pt = {
      x = x * math.cos(theta) - y * math.sin(theta),
      y = x * math.sin(theta) + y * math.cos(theta)

kirubz

var p1 = {
	x: 20,
	y: 20
};

var p2 = {
	x: 40,
	y: 40
};

kirubz

-- returns the degrees between (0,0) and pt (note: 0 degrees is 'east')
function angleOfPoint( pt )
   local x, y = pt.x, pt.y
   local radian = math.atan2(y,x)
   local angle = radian*180/math.pi
   if angle < 0 then angle = 360 + angle end
   return angle
end

-- returns the degrees between two points (note: 0 degrees is 'east')

kirubz

wget http://openresty.org/download/ngx_openresty-1.7.10.1.tar.gz \
    -O ngx_openresty-1.7.10.1.tar.gz

tar xzvf ngx_openresty-1.7.10.1.tar.gz
cd ngx_openresty-1.7.10.1
./configure
make
sudo make install

wget https://codeload.github.com/keplerproject/luarocks/tar.gz/v2.0.13 \

kirubz

#!/bin/bash
#
# chkconfig: 2345 55 25
# description: Openresty
# processname: nginx
# config: /usr/local/openresty/nginx/conf/nginx.conf
# pidfile: /usr/local/openresty/nginx/logs/nginx.pid
### BEGIN INIT INFO
# Provides: nginx
# Required-Start: $local_fs $remote_fs $network $named $syslog $time