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# -*- coding: utf-8 -*-
"""
MultiPlotItem.py - Graphics item used for displaying an array of PlotItems
Copyright 2010 Luke Campagnola
Distributed under MIT/X11 license. See license.txt for more infomation.
"""
from numpy import ndarray
from . import GraphicsLayout
try:
from metaarray import *
HAVE_METAARRAY = True
except:
#raise
HAVE_METAARRAY = False
__all__ = ['MultiPlotItem']
class MultiPlotItem(GraphicsLayout.GraphicsLayout):
"""
Automaticaly generates a grid of plots from a multi-dimensional array
"""
def plot(self, data):
#self.layout.clear()
self.plots = []
if HAVE_METAARRAY and (hasattr(data, 'implements') and data.implements('MetaArray')):
if data.ndim != 2:
raise Exception("MultiPlot currently only accepts 2D MetaArray.")
ic = data.infoCopy()
ax = 0
for i in [0, 1]:
if 'cols' in ic[i]:
ax = i
break
#print "Plotting using axis %d as columns (%d plots)" % (ax, data.shape[ax])
for i in range(data.shape[ax]):
pi = self.addPlot()
self.nextRow()
sl = [slice(None)] * 2
sl[ax] = i
pi.plot(data[tuple(sl)])
#self.layout.addItem(pi, i, 0)
self.plots.append((pi, i, 0))
title = None
units = None
info = ic[ax]['cols'][i]
if 'title' in info:
title = info['title']
elif 'name' in info:
title = info['name']
if 'units' in info:
units = info['units']
pi.setLabel('left', text=title, units=units)
else:
raise Exception("Data type %s not (yet?) supported for MultiPlot." % type(data))
def close(self):
for p in self.plots:
p[0].close()
self.plots = None
self.clear()
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