2020-06-23 17:59:04 +00:00
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# -*- coding: utf-8 -*-
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"""
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Demonstrates very basic use of pColorMeshItem
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"""
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## Add path to library (just for examples; you do not need this)
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import initExample
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from pyqtgraph.Qt import QtCore, QtGui
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import numpy as np
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import pyqtgraph as pg
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import pyqtgraph.ptime as ptime
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app = QtGui.QApplication([])
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## Create window with GraphicsView widget
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win = pg.GraphicsLayoutWidget()
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win.show() ## show widget alone in its own window
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win.setWindowTitle('pyqtgraph example: pColorMeshItem')
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view = win.addViewBox()
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## Create data
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x = np.array([[1,1,1,1],
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[2,2,2,2],
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[3,3,3,3],
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[4,4,4,4],
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[5,5,5,5]])
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y = np.array([[4,8,12,16],
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[2,4,6,8],
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[3,6,9,12],
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[5,10,15,20],
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[6,12,18,24]])
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z = np.array([[1,2,3],
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[5,6,7],
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[9,10,11],
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[13,14,15]])
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## Create image item
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2020-06-25 20:07:41 +00:00
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pcmi = pg.PColorMeshItem(x, y, z)
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2020-06-23 17:59:04 +00:00
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view.addItem(pcmi)
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fps = 1
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i = 0
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def updateData():
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global pcmi, x, y, z, i
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## Display the data
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pcmi.setData(x-i, y, z)
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QtCore.QTimer.singleShot(fps*1000, updateData)
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i += 1
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print(i)
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updateData()
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## Start Qt event loop unless running in interactive mode.
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if __name__ == '__main__':
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import sys
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if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
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QtGui.QApplication.instance().exec_()
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