192 lines
4.1 KiB
Python
192 lines
4.1 KiB
Python
# coding=UTF-8
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'''
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Anaglyphed rotating cube (for red and green glasses)
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This client uses the drawing functions (polyline) provided by LJ in lj.py
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You must check in lj.py if the redis server IP is correct.
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LICENCE : CC
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'''
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import redis
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import lj
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import math
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import time
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import argparse
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print ("")
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print ("Arguments parsing if needed...")
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argsparser = argparse.ArgumentParser(description="Text Cycling for LJ")
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argsparser.add_argument("-r","--redisIP",help="IP of the Redis server used by LJ (127.0.0.1 by default) ",type=str)
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argsparser.add_argument("-c","--client",help="LJ client number (0 by default)",type=int)
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argsparser.add_argument("-l","--laser",help="Laser number to be displayed (0 by default)",type=int)
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args = argsparser.parse_args()
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if args.client:
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ljclient = args.client
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else:
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ljclient = 0
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if args.laser:
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plnumber = args.laser
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else:
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plnumber = 0
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# Redis Computer IP
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if args.redisIP != None:
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redisIP = args.redisIP
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else:
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redisIP = '127.0.0.1'
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lj.Config(redisIP,ljclient)
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width = 800
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height = 600
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centerX = width / 2
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centerY = height / 2
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# 3D to 2D projection parameters
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fov = 256
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viewer_distance = 2.2
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# Anaglyph computation parameters for right and left eyes.
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eye_spacing = 100
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nadir = 0.5
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observer_altitude = 30000
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#observer_altitude = 10000
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# elevation = z coordinate
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# 0.0, -2000 pop out
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map_plane_altitude = 0.0
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# Cube coordinates
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# Define the vertices that compose each of the 6 faces.
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vertices = [
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(- 1.0, 1.0,- 1.0),
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( 1.0, 1.0,- 1.0),
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( 1.0,- 1.0,- 1.0),
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(- 1.0,- 1.0,- 1.0),
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(- 1.0, 1.0, 1.0),
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( 1.0, 1.0, 1.0),
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( 1.0,- 1.0, 1.0),
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(- 1.0,- 1.0, 1.0)
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]
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faces = [(0,1,2,3),(0,4,5,1),(1,5,6,2),(2,3,7,6),(6,5,4,7),(7,3,0,4)]
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def LeftShift(elevation):
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diff = elevation - map_plane_altitude
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return nadir * eye_spacing * diff / (observer_altitude - elevation)
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def RightShift(elevation):
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diff = map_plane_altitude - elevation
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return (1 - nadir) * eye_spacing * diff / (observer_altitude - elevation)
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# If you want to use rgb for color :
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def rgb2int(r,g,b):
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return int('0x%02x%02x%02x' % (r,g,b),0)
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def Proj(x,y,z,angleX,angleY,angleZ):
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rad = angleX * math.pi / 180
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cosa = math.cos(rad)
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sina = math.sin(rad)
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y2 = y
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y = y2 * cosa - z * sina
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z = y2 * sina + z * cosa
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rad = angleY * math.pi / 180
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cosa = math.cos(rad)
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sina = math.sin(rad)
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z2 = z
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z = z2 * cosa - x * sina
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x = z2 * sina + x * cosa
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rad = angleZ * math.pi / 180
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cosa = math.cos(rad)
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sina = math.sin(rad)
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x2 = x
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x = x2 * cosa - y * sina
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y = x2 * sina + y * cosa
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""" Transforms this 3D point to 2D using a perspective projection. """
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factor = fov / (viewer_distance + z)
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x = x * factor + centerX
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y = - y * factor + centerY
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return (x,y)
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def Run():
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Left = []
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Right = []
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counter =0
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while 1:
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Left = []
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Right = []
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x = vertices[0][0]
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y = vertices[0][1]
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z = vertices[0][2]
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# The cube start always with vertice 0
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# LJ tracers will "move" the laser to this first point in black, then move to the next with second point color.
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# For more accuracy in dac emulator, repeat this first point.
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# Cube Y axis rotation of 'counter' angle and 3d-2d Proj function.
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#Left.append( Proj(x+LeftShift(z*5),y,z,0,counter,0))
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#Right.append(Proj(x+RightShift(z*5),y,z,0,counter,0))
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# Add all the cube points face by face.
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for fa in faces:
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for point in fa:
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x = vertices[point][0]
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y = vertices[point][1]
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z = vertices[point][2]
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Left.append( Proj(x+LeftShift(z*25),y,z,0,counter,0))
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Right.append(Proj(x+RightShift(z*25),y,z,0,counter,0))
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# Drawing step, 2 possibilities
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# Red and Green drawn by laser 0
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lj.PolyLineOneColor(Left, c = red, PL = 0, closed = True)
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lj.PolyLineOneColor(Right, c = green, PL = 0, closed = True)
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lj.DrawPL(0)
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'''
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# Red on laser 1 and green on laser 2
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lj.PolyLineOneColor(Left, c = red, PL = 1, closed = True)
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lj.PolyLineOneColor(Right, c = green, PL = 2, closed = True)
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lj.DrawPL(1)
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lj.DrawPL(2)
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'''
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time.sleep(0.1)
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counter += 1
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if counter >360:
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counter =0
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white = rgb2int(255,255,255)
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red = rgb2int(255,0,0)
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blue = rgb2int(0,0,255)
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green = rgb2int(0,255,0)
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Run()
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