本文整理汇总了Python中matplotlib.backends.backend_qt4agg.FigureCanvasQTAgg.widgetlock方法的典型用法代码示例。如果您正苦于以下问题：Python FigureCanvasQTAgg.widgetlock方法的具体用法？Python FigureCanvasQTAgg.widgetlock怎么用？Python FigureCanvasQTAgg.widgetlock使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类matplotlib.backends.backend_qt4agg.FigureCanvasQTAgg的用法示例。
在下文中一共展示了FigureCanvasQTAgg.widgetlock方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: ROISelect
# 需要导入模块: from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg [as 别名]
# 或者: from matplotlib.backends.backend_qt4agg.FigureCanvasQTAgg import widgetlock [as 别名]
class ROISelect(QMdiSubWindow):
###########
# Signals #
###########
plotSignal = pyqtSignal()
########################
# Initializing Methods #
########################
def __init__(self, title, imgfile, control, parent=None):
'''
Initializes internal variables
'''
QMdiSubWindow.__init__(self, parent)
self.setWindowTitle(title)
self.imgfile = imgfile
self.control = control
self.xys = []
self.ROI = np.zeros((600,800)).astype(np.bool)
for i in range(800):
for j in range(600):
self.xys.append((i,j))
self.create_main_frame()
self.onDraw()
def create_main_frame(self):
'''
Creates the main window
'''
# Widgets
self.main_frame = QWidget()
self.fig = Figure()
self.canvas = FigureCanvas(self.fig)
self.canvas.setParent(self.main_frame)
self.axes = self.fig.add_subplot(111)
self.mpl_toolbar = NavigationToolbar(self.canvas, self.main_frame)
self.reset = QPushButton('&Reset')
# Connections
self.cid = self.canvas.mpl_connect('button_press_event', self.onpress)
self.control.imageChanged.connect(self.onImageChanged)
self.control.closeSignal.connect(self.close)
self.connect(self.reset, SIGNAL('clicked()'), self.onReset)
# Layouts
vbox = QVBoxLayout()
vbox.addWidget(self.canvas)
vbox.addWidget(self.mpl_toolbar)
vbox.addWidget(self.reset)
self.main_frame.setLayout(vbox)
self.setWidget(self.main_frame)
#########
# Slots #
#########
def onReset(self):
self.ROI = np.zeros((600,800)).astype(np.bool)
self.cid = self.canvas.mpl_connect('button_press_event', self.onpress)
self.onDraw()
def onDraw(self):
self.axes.clear()
img = Image.open(self.imgfile)
img = np.asarray(img)
self.axes.imshow(img)
self.axes.imshow(self.ROI, alpha=0.1, cmap='gray')
self.plotSignal.emit()
self.canvas.draw()
def getROI(self, verts):
ind = points_inside_poly(self.xys, verts)
self.canvas.draw_idle()
self.canvas.widgetlock.release(self.lasso)
del self.lasso
self.ROI = ind
self.ROI = self.ROI.reshape((600,800), order='F')
self.canvas.mpl_disconnect(self.cid)
self.onDraw()
def onpress(self, event):
if self.canvas.widgetlock.locked(): return
if event.inaxes is None: return
self.lasso = Lasso(event.inaxes, (event.xdata, event.ydata), self.getROI)
self.canvas.widgetlock(self.lasso)
def onImageChanged(self, filename):
'''
Catches the signal from the ControlPanel that the current image has changed
'''
self.imgfile = str(filename)
self.onDraw()