2012-04-28 19:48:49 +00:00
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# -*- coding: utf-8 -*-
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## Add path to library (just for examples; you do not need this)
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import sys, os
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..', '..'))
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from pyqtgraph.Qt import QtCore, QtGui
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import pyqtgraph.opengl as gl
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2012-10-26 04:09:47 +00:00
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import numpy as np
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2012-04-28 19:48:49 +00:00
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app = QtGui.QApplication([])
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w = gl.GLViewWidget()
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w.opts['distance'] = 20
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w.show()
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g = gl.GLGridItem()
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w.addItem(g)
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2012-10-26 04:09:47 +00:00
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#pos = np.empty((53, 3))
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#size = np.empty((53))
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#color = np.empty((53, 4))
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#pos[0] = (1,0,0); size[0] = 0.5; color[0] = (1.0, 0.0, 0.0, 0.5)
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#pos[1] = (0,1,0); size[1] = 0.2; color[1] = (0.0, 0.0, 1.0, 0.5)
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#pos[2] = (0,0,1); size[2] = 2./3.; color[2] = (0.0, 1.0, 0.0, 0.5)
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#z = 0.5
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#d = 6.0
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#for i in range(3,53):
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#pos[i] = (0,0,z)
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#size[i] = 2./d
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#color[i] = (0.0, 1.0, 0.0, 0.5)
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#z *= 0.5
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#d *= 2.0
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#sp = gl.GLScatterPlotItem(pos=pos, sizes=size, colors=color, pxMode=False)
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pos = (np.random.random(size=(100000,3)) * 10) - 5
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color = np.ones((pos.shape[0], 4))
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d = (pos**2).sum(axis=1)**0.5
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color[:,3] = np.clip(-np.cos(d*2) * 0.2, 0, 1)
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sp = gl.GLScatterPlotItem(pos=pos, color=color, size=5)
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phase = 0.
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def update():
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global phase, color, sp, d
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s = -np.cos(d*2+phase)
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color[:,3] = np.clip(s * 0.2, 0, 1)
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color[:,0] = np.clip(s * 3.0, 0, 1)
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color[:,1] = np.clip(s * 1.0, 0, 1)
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color[:,2] = np.clip(s ** 3, 0, 1)
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sp.setData(color=color)
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phase -= 0.1
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t = QtCore.QTimer()
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t.timeout.connect(update)
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t.start(50)
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2012-04-28 19:48:49 +00:00
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w.addItem(sp)
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## Start Qt event loop unless running in interactive mode.
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if sys.flags.interactive != 1:
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app.exec_()
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