LJ/plugins/custom1.py

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#!/usr/bin/python3
# -*- coding: utf-8 -*-
# -*- mode: Python -*-
'''
custom1
v0.1.0
A copy of square.py you can modify to code your plugin.
custom1 has necessary hooks in LJ.conf, webui and so on.
LICENCE : CC
by Sam Neurohack
'''
import sys
import os
print()
ljpath = r'%s' % os.getcwd().replace('\\','/')
# import from shell
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sys.path.append(ljpath +'/../libs3/')
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#import from LJ
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sys.path.append(ljpath +'/libs3/')
print(ljpath+'/../libs3/')
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import lj
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sys.path.append('../libs3')
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from OSC3 import OSCServer, OSCClient, OSCMessage
import redis
import math
import time
import argparse
OSCinPort = 8014
print ("")
print ("Arguments parsing if needed...")
argsparser = argparse.ArgumentParser(description="Custom1 example for LJ")
argsparser.add_argument("-r","--redisIP",help="IP of the Redis server used by LJ (127.0.0.1 by default) ",type=str)
argsparser.add_argument("-s","--scene",help="LJ scene number (0 by default)",type=int)
#argsparser.add_argument("-l","--laser",help="Laser number to be displayed (0 by default)",type=int)
argsparser.add_argument("-v","--verbose",help="Verbosity level (0 by default)",type=int)
argsparser.add_argument("-m","--myIP",help="Local IP (127.0.0.1 by default) ",type=str)
args = argsparser.parse_args()
if args.scene:
ljscene = args.scene
else:
ljscene = 0
'''
if args.laser:
plnumber = args.laser
else:
plnumber = 0
'''
# Redis Computer IP
if args.redisIP != None:
redisIP = args.redisIP
else:
redisIP = '127.0.0.1'
print("redisIP",redisIP)
# myIP
if args.myIP != None:
myIP = args.myIP
else:
myIP = '127.0.0.1'
print("myIP",myIP)
if args.verbose:
debug = args.verbose
else:
debug = 0
# Useful variables init.
white = lj.rgb2int(255,255,255)
red = lj.rgb2int(255,0,0)
blue = lj.rgb2int(0,0,255)
green = lj.rgb2int(0,255,0)
width = 800
height = 600
centerX = width / 2
centerY = height / 2
# 3D to 2D projection parameters
fov = 256
viewer_distance = 2.2
# Anaglyph computation parameters for right and left eyes.
# algorythm come from anaglyph geo maps
eye_spacing = 100
nadir = 0.5
observer_altitude = 30000
map_layerane_altitude = 0.0
# square coordinates : vertices that compose each of the square.
vertices = [
(- 1.0, 1.0,- 1.0),
( 1.0, 1.0,- 1.0),
( 1.0,- 1.0,- 1.0),
(- 1.0,- 1.0,- 1.0)
]
face = [0,1,2,3]
#
# LJ inits
#
layer = 0
# Setup LJ library mandatory properties for this plugin
lj.Config(redisIP, ljscene, "custom1")
# Define properties for each drawn "element" : name, intensity, active, xy, color, red, green, blue, layer , closed
Leftsquare = lj.FixedObject('Leftsquare', True, 255, [], red, 255, 0, 0, layer , True)
Rightsquare = lj.FixedObject('Rightsquare', True, 255, [], green, 0, 255, 0, layer , True)
# 'Destination' for given layer : name, number, active, layer , scene, laser
Dest0 = lj.DestObject('0', 0, True, 0 , 0, 0) # Dest0 will send layer 0 points to scene 0, laser 0
#
# Anaglyph computation : different X coordinate for each eye
#
def LeftShift(elevation):
diff = elevation - map_layerane_altitude
return nadir * eye_spacing * diff / (observer_altitude - elevation)
def RightShift(elevation):
diff = map_layerane_altitude - elevation
return (1 - nadir) * eye_spacing * diff / (observer_altitude - elevation)
#
# OSC
#
oscserver = OSCServer( (myIP, OSCinPort) )
oscserver.timeout = 0
# this method of reporting timeouts only works by convention
# that before calling handle_request() field .timed_out is
# set to False
def handle_timeout(self):
self.timed_out = True
# funny python's way to add a method to an instance of a class
import types
oscserver.handle_timeout = types.MethodType(handle_timeout, oscserver)
# OSC callbacks
# /custom1/ljscene
def OSCljscene(path, tags, args, source):
print("Got /custom1/ljscene with value", args[0])
lj.WebStatus("custom1 to virtual "+ str(args[0]))
ljscene = args[0]
lj.Ljscene(ljscene)
def Proj(x,y,z,angleX,angleY,angleZ):
rad = angleX * math.pi / 180
cosa = math.cos(rad)
sina = math.sin(rad)
y2 = y
y = y2 * cosa - z * sina
z = y2 * sina + z * cosa
rad = angleY * math.pi / 180
cosa = math.cos(rad)
sina = math.sin(rad)
z2 = z
z = z2 * cosa - x * sina
x = z2 * sina + x * cosa
rad = angleZ * math.pi / 180
cosa = math.cos(rad)
sina = math.sin(rad)
x2 = x
x = x2 * cosa - y * sina
y = x2 * sina + y * cosa
""" Transforms this 3D point to 2D using a perspective projection. """
factor = fov / (viewer_distance + z)
x = x * factor + centerX
y = - y * factor + centerY
return (x,y)
#
# Main
#
def Run():
Left = []
Right = []
counter =0
#lj.SendLJ("/custom1/start 1")
# OSC Server callbacks
print("Starting OSC server at",myIP," port",OSCinPort,"...")
oscserver.addMsgHandler( "/custom1/ljscene", OSCljscene )
# Add OSC generic plugins commands : 'default", /ping, /quit, /pluginame/obj, /pluginame/var, /pluginame/adddest, /pluginame/deldest
lj.addOSCdefaults(oscserver)
try:
while lj.oscrun:
lj.OSCframe()
Left = []
Right = []
x = vertices[0][0]
y = vertices[0][1]
z = vertices[0][2]
# LJ tracers will "move" the laser to this first point in black, then move to the next with second point color.
# For more accuracy in dac emulator, repeat this first point.
# Generate all points in square.
for point in face:
x = vertices[point][0]
y = vertices[point][1]
z = vertices[point][2]
Left.append(Proj(x+LeftShift(z*25),y,z,0,counter,0))
Right.append(Proj(x+RightShift(z*25),y,z,0,counter,0))
lj.PolyLineOneColor(Left, c = Leftsquare.color , layer = Leftsquare.layer, closed = Leftsquare.closed)
lj.PolyLineOneColor(Right, c = Rightsquare.color , layer = Rightsquare.layer, closed = Rightsquare.closed)
lj.DrawDests()
time.sleep(0.1)
counter += 1
if counter > 360:
counter = 0
except KeyboardInterrupt:
pass
# Gently stop on CTRL C
finally:
lj.ClosePlugin()
Run()