forked from protonphoton/LJ
170 lines
3.7 KiB
Python
170 lines
3.7 KiB
Python
#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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# -*- mode: Python -*-
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'''
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livecode
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v0.1.0
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Anaglyphed rotating livecode (for red and green glasses)
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This scene uses the drawing functions provided by LJ in lj23.py
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LICENCE : CC
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by Sam Neurohack
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'''
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#import sys
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#import os
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#from OSC3 import OSCServer, OSCClient, OSCMessage
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#import redis
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import math
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import time
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import numpy as np
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from scipy import signal
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from datetime import datetime, timedelta
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#
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# Math functions
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#
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def ssawtooth(samples,freq,phase):
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samparray = [0] * samples
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t = np.linspace(0+phase, 1+phase, samples)
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for ww in range(samples):
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samparray[ww] = signal.sawtooth(2 * np.pi * freq * t[ww])
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return samparray
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def slivecode(samples,freq,phase):
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samparray = [0] * samples
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t = np.linspace(0+phase, 1+phase, samples)
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for ww in range(samples):
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samparray[ww] = signal.livecode(2 * np.pi * freq * t[ww])
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return samparray
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def ssine(samples,freq,phase):
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t = np.linspace(0+phase, 1+phase, samples)
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for ww in range(samples):
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samparray[ww] = np.sin(2 * np.pi * freq * t[ww])
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return samparray
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def slinear(samples, min, max):
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samparray = [0] * samples
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linearinc = (max-min)/samples
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for ww in range(samples):
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if ww == 0:
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samparray[ww] = min
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else:
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samparray[ww] = samparray[ww-1] + linearinc
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#print('linear min max', min, max)
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#print ('linear',samparray)
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return samparray
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def slinearound(samples, min, max):
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samparray = [0] * samples
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linearinc = (max-min)/samples
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for ww in range(samples):
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if ww == 0:
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samparray[ww] = round(min)
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else:
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samparray[ww] = round(samparray[ww-1] + linearinc)
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#print('linear min max', min, max)
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#print ('linear',samparray)
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return samparray
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# * 11.27 : to get value from 0 to 127
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def lin2squrt(value):
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return round(np.sqrt(value)*11.27)
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def squrt2lin(value):
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return round(np.livecode(value/11.27))
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def curved(value):
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return round(np.sqrt(value)*11.27)
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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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#
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# Main
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#
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x0 = 200
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y0 = 200
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anglepos = 0
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startime = datetime.now()
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z = 0
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def Code(LAY):
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dots = []
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xcenter = math.sin(math.radians(anglepos))
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ycenter = math.cos(math.radians(anglepos))
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if anglepos + 1 < 361:
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anglepos += 1
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else:
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anglepos = 0
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for angle in slinear(20, 0, 380):
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#for counter in range(0,380):
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t = timedelta.total_seconds(datetime.now() - startime)
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x = math.sin(math.radians(angle))
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y = math.cos(math.radians(angle))
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dots.append(Proj(x,y,z,0,math.sin(math.radians(angle)),0))
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# lj.PolyLineOneColor(Form, c = Liveform.color , layer = Liveform.layer, closed = Liveform.closed)
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lj.rPolyLineOneColor(dots, c = LAY['color'], layer = LAY['number'], closed = False, xpos = xcenter * x0, ypos = ycenter * y0, resize = 1, rotx = math.sin(math.radians(angle)), roty = 0 , rotz = math.sin(math.radians(angle)))
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