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cleanups

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This commit is contained in:
Luke Campagnola 2014-02-02 10:45:32 -05:00
parent 96296749be
commit 92d3b3fb94
2 changed files with 12 additions and 19 deletions
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8
examples/SimplePlot.py
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@ -1,16 +1,10 @@
import initExample ## Add path to library (just for examples; you do not need this)
from os.path import *
from pyqtgraph.Qt import QtGui, QtCore
import pyqtgraph as pg
import numpy as np
plt = pg.plot(np.random.normal(size=100), title="Simplest possible plotting example")
plt.getAxis('bottom').setTicks([[(x*20, str(x*20)) for x in range(6)]])
## Start Qt event loop unless running in interactive mode or using pyside.
ex = pg.exporters.SVGExporter.SVGExporter(plt.plotItem.scene())
ex.export(join(dirname(__file__), 'test.svg'))
if __name__ == '__main__':
import sys
if sys.flags.interactive != 1 or not hasattr(QtCore, 'PYQT_VERSION'):
if sys.flags.interactive != 1 or not hasattr(pg.QtCore, 'PYQT_VERSION'):
pg.QtGui.QApplication.exec_()

23
pyqtgraph/graphicsItems/ArrowItem.py
View File

@ -16,12 +16,14 @@ class ArrowItem(QtGui.QGraphicsPathItem):
Arrows can be initialized with any keyword arguments accepted by
the setStyle() method.
"""
self.opts = {}
QtGui.QGraphicsPathItem.__init__(self, opts.get('parent', None))
if 'size' in opts:
opts['headLen'] = opts['size']
if 'width' in opts:
opts['headWidth'] = opts['width']
defOpts = {
defaultOpts = {
'pxMode': True,
'angle': -150, ## If the angle is 0, the arrow points left
'pos': (0,0),
@ -33,12 +35,9 @@ class ArrowItem(QtGui.QGraphicsPathItem):
'pen': (200,200,200),
'brush': (50,50,200),
}
defOpts.update(opts)
defaultOpts.update(opts)
self.setStyle(**defOpts)
self.setPen(fn.mkPen(defOpts['pen']))
self.setBrush(fn.mkBrush(defOpts['brush']))
self.setStyle(**defaultOpts)
self.rotate(self.opts['angle'])
self.moveBy(*self.opts['pos'])
@ -60,9 +59,9 @@ class ArrowItem(QtGui.QGraphicsPathItem):
specified, ot overrides headWidth. default=25
baseAngle Angle of the base of the arrow head. Default is
0, which means that the base of the arrow head
is perpendicular to the arrow shaft.
is perpendicular to the arrow tail.
tailLen Length of the arrow tail, measured from the base
of the arrow head to the tip of the tail. If
of the arrow head to the end of the tail. If
this value is None, no tail will be drawn.
default=None
tailWidth Width of the tail. default=3
@ -70,15 +69,15 @@ class ArrowItem(QtGui.QGraphicsPathItem):
brush The brush used to fill the arrow.
================= =================================================
"""
try:
self.opts.update(opts)
except AttributeError:
self.opts = opts
self.opts.update(opts)
opt = dict([(k,self.opts[k]) for k in ['headLen', 'tipAngle', 'baseAngle', 'tailLen', 'tailWidth']])
self.path = fn.makeArrowPath(**opt)
self.setPath(self.path)
self.setPen(fn.mkPen(self.opts['pen']))
self.setBrush(fn.mkBrush(self.opts['brush']))
if self.opts['pxMode']:
self.setFlags(self.flags() | self.ItemIgnoresTransformations)
else: