#!/usr/bin/python3 # -*- coding: utf-8 -*- # -*- mode: Python -*- ''' Square v0.1.0 Anaglyphed rotating square (for red and green glasses) This scene uses the drawing functions provided by LJ in lj23.py LICENCE : CC by Sam Neurohack ''' import sys import os print() ljpath = r'%s' % os.getcwd().replace('\\','/') # import from shell sys.path.append(ljpath +'/../libs3/') #import from LJ sys.path.append(ljpath +'/libs3/') print(ljpath+'/../libs3/') import lj sys.path.append('../libs3') from OSC3 import OSCServer, OSCClient, OSCMessage import redis import math import time import argparse OSCinPort = 8013 print ("") print ("Arguments parsing if needed...") argsparser = argparse.ArgumentParser(description="Square 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. lj.Config(redisIP, ljscene, "square") # You can 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, [], blue, 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 # /square/ljscene def OSCljscene(path, tags, args, source): print("Got /square/ljscene with value", args[0]) lj.WebStatus("square 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.WebStatus("Square") lj.SendLJ("/square/start 1") # OSC Server callbacks print("Starting OSC server at",myIP," port",OSCinPort,"...") oscserver.addMsgHandler( "/square/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()