66 lines
2.1 KiB
Python
66 lines
2.1 KiB
Python
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# -*- coding: utf-8 -*-
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"""
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MultiPlotItem.py - Graphics item used for displaying an array of PlotItems
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Copyright 2010 Luke Campagnola
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Distributed under MIT/X11 license. See license.txt for more infomation.
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"""
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from numpy import ndarray
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from graphicsItems import *
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from PlotItem import *
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try:
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from metaarray import *
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HAVE_METAARRAY = True
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except:
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raise
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HAVE_METAARRAY = False
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class MultiPlotItem(QtGui.QGraphicsWidget):
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def __init__(self, parent=None):
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QtGui.QGraphicsWidget.__init__(self, parent)
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self.layout = QtGui.QGraphicsGridLayout()
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self.layout.setContentsMargins(1,1,1,1)
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self.setLayout(self.layout)
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self.layout.setHorizontalSpacing(0)
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self.layout.setVerticalSpacing(4)
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self.plots = []
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def plot(self, data):
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#self.layout.clear()
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self.plots = []
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if HAVE_METAARRAY and isinstance(data, MetaArray):
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if data.ndim != 2:
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raise Exception("MultiPlot currently only accepts 2D MetaArray.")
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ic = data.infoCopy()
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ax = 0
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for i in [0, 1]:
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if 'cols' in ic[i]:
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ax = i
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break
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#print "Plotting using axis %d as columns (%d plots)" % (ax, data.shape[ax])
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for i in range(data.shape[ax]):
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pi = PlotItem()
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sl = [slice(None)] * 2
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sl[ax] = i
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pi.plot(data[tuple(sl)])
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self.layout.addItem(pi, i, 0)
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self.plots.append((pi, i, 0))
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title = None
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units = None
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info = ic[ax]['cols'][i]
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if 'title' in info:
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title = info['title']
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elif 'name' in info:
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title = info['name']
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if 'units' in info:
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units = info['units']
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pi.setLabel('left', text=title, units=units)
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else:
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raise Exception("Data type %s not (yet?) supported for MultiPlot." % type(data))
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