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128 lines
4.7 KiB
Python
128 lines
4.7 KiB
Python
from ..Qt import QtGui, QtCore
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from .Exporter import Exporter
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from .. import PlotItem
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from .. import functions as fn
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__all__ = ['MatplotlibExporter']
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"""
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It is helpful when using the matplotlib Exporter if your
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.matplotlib/matplotlibrc file is configured appropriately.
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The following are suggested for getting usable PDF output that
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can be edited in Illustrator, etc.
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backend : Qt4Agg
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text.usetex : True # Assumes you have a findable LaTeX installation
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interactive : False
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font.family : sans-serif
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font.sans-serif : 'Arial' # (make first in list)
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mathtext.default : sf
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figure.facecolor : white # personal preference
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# next setting allows pdf font to be readable in Adobe Illustrator
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pdf.fonttype : 42 # set fonts to TrueType (otherwise it will be 3
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# and the text will be vectorized.
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text.dvipnghack : True # primarily to clean up font appearance on Mac
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The advantage is that there is less to do to get an exported file cleaned and ready for
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publication. Fonts are not vectorized (outlined), and window colors are white.
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"""
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class MatplotlibExporter(Exporter):
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Name = "Matplotlib Window"
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windows = []
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def __init__(self, item):
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Exporter.__init__(self, item)
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def parameters(self):
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return None
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def cleanAxes(self, axl):
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if type(axl) is not list:
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axl = [axl]
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for ax in axl:
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if ax is None:
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continue
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for loc, spine in ax.spines.iteritems():
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if loc in ['left', 'bottom']:
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pass
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elif loc in ['right', 'top']:
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spine.set_color('none')
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# do not draw the spine
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else:
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raise ValueError('Unknown spine location: %s' % loc)
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# turn off ticks when there is no spine
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ax.xaxis.set_ticks_position('bottom')
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def export(self, fileName=None):
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if isinstance(self.item, PlotItem):
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mpw = MatplotlibWindow()
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MatplotlibExporter.windows.append(mpw)
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stdFont = 'Arial'
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fig = mpw.getFigure()
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# get labels from the graphic item
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xlabel = self.item.axes['bottom']['item'].label.toPlainText()
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ylabel = self.item.axes['left']['item'].label.toPlainText()
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title = self.item.titleLabel.text
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ax = fig.add_subplot(111, title=title)
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ax.clear()
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self.cleanAxes(ax)
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#ax.grid(True)
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for item in self.item.curves:
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x, y = item.getData()
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opts = item.opts
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pen = fn.mkPen(opts['pen'])
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if pen.style() == QtCore.Qt.NoPen:
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linestyle = ''
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else:
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linestyle = '-'
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color = tuple([c/255. for c in fn.colorTuple(pen.color())])
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symbol = opts['symbol']
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if symbol == 't':
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symbol = '^'
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symbolPen = fn.mkPen(opts['symbolPen'])
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symbolBrush = fn.mkBrush(opts['symbolBrush'])
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markeredgecolor = tuple([c/255. for c in fn.colorTuple(symbolPen.color())])
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markerfacecolor = tuple([c/255. for c in fn.colorTuple(symbolBrush.color())])
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markersize = opts['symbolSize']
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if opts['fillLevel'] is not None and opts['fillBrush'] is not None:
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fillBrush = fn.mkBrush(opts['fillBrush'])
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fillcolor = tuple([c/255. for c in fn.colorTuple(fillBrush.color())])
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ax.fill_between(x=x, y1=y, y2=opts['fillLevel'], facecolor=fillcolor)
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pl = ax.plot(x, y, marker=symbol, color=color, linewidth=pen.width(),
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linestyle=linestyle, markeredgecolor=markeredgecolor, markerfacecolor=markerfacecolor,
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markersize=markersize)
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xr, yr = self.item.viewRange()
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ax.set_xbound(*xr)
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ax.set_ybound(*yr)
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ax.set_xlabel(xlabel) # place the labels.
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ax.set_ylabel(ylabel)
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mpw.draw()
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else:
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raise Exception("Matplotlib export currently only works with plot items")
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MatplotlibExporter.register()
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class MatplotlibWindow(QtGui.QMainWindow):
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def __init__(self):
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from ..widgets import MatplotlibWidget
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QtGui.QMainWindow.__init__(self)
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self.mpl = MatplotlibWidget.MatplotlibWidget()
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self.setCentralWidget(self.mpl)
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self.show()
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def __getattr__(self, attr):
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return getattr(self.mpl, attr)
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def closeEvent(self, ev):
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MatplotlibExporter.windows.remove(self)
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