2020-06-23 17:59:04 +00:00
|
|
|
# -*- coding: utf-8 -*-
|
|
|
|
|
"""
|
2020-06-26 16:12:17 +00:00
|
|
|
Demonstrates very basic use of PColorMeshItem
|
2020-06-23 17:59:04 +00:00
|
|
|
"""
|
|
|
|
|
|
|
|
|
|
## Add path to library (just for examples; you do not need this)
|
|
|
|
|
import initExample
|
|
|
|
|
|
|
|
|
|
from pyqtgraph.Qt import QtCore, QtGui
|
|
|
|
|
import numpy as np
|
|
|
|
|
import pyqtgraph as pg
|
|
|
|
|
import pyqtgraph.ptime as ptime
|
|
|
|
|
|
|
|
|
|
app = QtGui.QApplication([])
|
|
|
|
|
|
|
|
|
|
## Create window with GraphicsView widget
|
|
|
|
|
win = pg.GraphicsLayoutWidget()
|
|
|
|
|
win.show() ## show widget alone in its own window
|
|
|
|
|
win.setWindowTitle('pyqtgraph example: pColorMeshItem')
|
|
|
|
|
view = win.addViewBox()
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
## Create data
|
|
|
|
|
x = np.array([[1,1,1,1],
|
|
|
|
|
[2,2,2,2],
|
|
|
|
|
[3,3,3,3],
|
|
|
|
|
[4,4,4,4],
|
|
|
|
|
[5,5,5,5]])
|
|
|
|
|
y = np.array([[4,8,12,16],
|
|
|
|
|
[2,4,6,8],
|
|
|
|
|
[3,6,9,12],
|
|
|
|
|
[5,10,15,20],
|
|
|
|
|
[6,12,18,24]])
|
|
|
|
|
z = np.array([[1,2,3],
|
|
|
|
|
[5,6,7],
|
|
|
|
|
[9,10,11],
|
|
|
|
|
[13,14,15]])
|
|
|
|
|
|
|
|
|
|
## Create image item
|
2020-06-25 20:07:41 +00:00
|
|
|
pcmi = pg.PColorMeshItem(x, y, z)
|
2020-06-23 17:59:04 +00:00
|
|
|
view.addItem(pcmi)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
fps = 1
|
|
|
|
|
i = 0
|
|
|
|
|
|
|
|
|
|
def updateData():
|
|
|
|
|
global pcmi, x, y, z, i
|
|
|
|
|
|
|
|
|
|
## Display the data
|
|
|
|
|
pcmi.setData(x-i, y, z)
|
|
|
|
|
|
|
|
|
|
QtCore.QTimer.singleShot(fps*1000, updateData)
|
|
|
|
|
i += 1
|
|
|
|
|
print(i)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
updateData()
|
|
|
|
|
|
|
|
|
|
## Start Qt event loop unless running in interactive mode.
|
|
|
|
|
if __name__ == '__main__':
|
|
|
|
|
import sys
|
|
|
|
|
if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
|
|
|
|
|
QtGui.QApplication.instance().exec_()
|
