def __init__(self, video, result):
self.video = video
self.result = result
app = pg.mkQApp()
self.win = pg.GraphicsWindow(title="Live webcam")
self.win.resize(640,480)
box = self.win.addViewBox(lockAspect=True)
box.invertY()
self.vis = pg.ImageItem()
box.addItem(self.vis)
box = self.win.addViewBox(lockAspect=True)
box.invertY()
self.res = pg.ImageItem()
box.addItem(self.res)
self.win.show()
self.lastUpdate = pg.ptime.time()
self.avgFps = 0.0
python类mkQApp()的实例源码
def plot_data(data, scroll_axis=2):
""" Plot an image associated data.
Currently support on 1D, 2D or 3D data.
Parameters
----------
data: array
the data to be displayed.
scroll_axis: int (optional, default 2)
the scroll axis for 3d data.
"""
# Check input parameters
if data.ndim not in range(1, 4):
raise ValueError("Unsupported data dimension.")
# Deal with complex data
if numpy.iscomplex(data).any():
data = numpy.abs(data)
# Create application
app = pyqtgraph.mkQApp()
# Create the widget
if data.ndim == 3:
indices = [i for i in range(3) if i != scroll_axis]
indices = [scroll_axis] + indices
widget = pyqtgraph.image(numpy.transpose(data, indices))
elif data.ndim == 2:
widget = pyqtgraph.image(data)
else:
widget = pyqtgraph.plot(data)
# Run application
app.exec_()
def __init__(self, func):
self.func = func
app = pg.mkQApp()
self.win = pg.GraphicsWindow(title="Bar learning")
self.win.resize(800,800)
self.win.addLabel("Input")
self.win.addLabel("Feature")
self.win.nextRow()
box = self.win.addViewBox(lockAspect=True)
self.input_vis = pg.ImageItem()
box.addItem(self.input_vis)
box = self.win.addViewBox(lockAspect=True)
self.feature_vis = pg.ImageItem()
box.addItem(self.feature_vis)
self.win.nextRow()
self.win.addLabel("Receptive fields", colspan=2)
self.win.nextRow()
box = self.win.addViewBox(lockAspect=True, colspan=2)
self.rv_vis = pg.ImageItem()
box.addItem(self.rv_vis)
self.win.show()
def __init__(self, points, title = None):
pg.mkQApp();
self.w = gl.GLViewWidget()
self.w.opts['distance'] = 20
self.w.show()
self.w.setWindowTitle(title)
self.g = gl.GLGridItem()
self.w.addItem(self.g)
self.sp = gl.GLScatterPlotItem(pos=points, color=(1,1,1,1), pxMode= True)
self.w.addItem(self.sp);
#self.plot.addItem(self.w);
#
### create three grids, add each to the view
#xgrid = gl.GLGridItem()
#ygrid = gl.GLGridItem()
#zgrid = gl.GLGridItem()
#view.addItem(xgrid)
#view.addItem(ygrid)
#view.addItem(zgrid)
#
### rotate x and y grids to face the correct direction
#xgrid.rotate(90, 0, 1, 0)
#ygrid.rotate(90, 1, 0, 0)
#
### scale each grid differently
#xgrid.scale(0.2, 0.1, 0.1)
#ygrid.scale(0.2, 0.1, 0.1)
#zgrid.scale(0.1, 0.2, 0.1)
def __init__(self, points, title = None):
pg.mkQApp();
self.w = gl.GLViewWidget()
self.w.opts['distance'] = 20
self.w.show()
self.w.setWindowTitle(title)
self.g = gl.GLGridItem()
self.w.addItem(self.g)
self.sp = gl.GLScatterPlotItem(pos=points, color=(1,1,1,1), pxMode= True)
self.w.addItem(self.sp);
#self.plot.addItem(self.w);
#
### create three grids, add each to the view
#xgrid = gl.GLGridItem()
#ygrid = gl.GLGridItem()
#zgrid = gl.GLGridItem()
#view.addItem(xgrid)
#view.addItem(ygrid)
#view.addItem(zgrid)
#
### rotate x and y grids to face the correct direction
#xgrid.rotate(90, 0, 1, 0)
#ygrid.rotate(90, 1, 0, 0)
#
### scale each grid differently
#xgrid.scale(0.2, 0.1, 0.1)
#ygrid.scale(0.2, 0.1, 0.1)
#zgrid.scale(0.1, 0.2, 0.1)
