class QwtColorBar(QwtPlot):
menu_table = {
'unzoom intensity range': 200,
'lock colorbar scale': 201,
'unlock colorbar scale': 202,
}
set_image_range = pyqtSignal(int, int, int, int)
def __init__(self, colorbar_number=0, parent=None):
QwtPlot.__init__(self, parent)
self._mainwin = parent and parent.topLevelWidget()
self.colorbar_number = colorbar_number
# create copy of standard application font..
font = QFont()
fi = QFontInfo(font)
# and scale it down to 70%
font.setPointSize(fi.pointSize() * 0.7)
# apply font to QwtPlot
# self.setTitleFont(font);
for axis in range(0, 4):
self.setAxisFont(axis, font)
# self.setAxisTitleFont(axis,font);
# make a QwtPlot widget
self.plotLayout().setCanvasMargin(0)
self.plotLayout().setAlignCanvasToScales(1)
# set axis parameters
self.enableAxis(QwtPlot.yLeft)
self.enableAxis(QwtPlot.xBottom, False)
self.setAxisLabelRotation(QwtPlot.yLeft, 270)
self.setAxisLabelAlignment(QwtPlot.yLeft, Qt.AlignTop)
# default color bar
self.plotImage = QwtPlotImage(self)
self.plotImage.attach(self)
self.updateDisplay()
self.min = 0.0
self.max = 256.0
self.is_active = False
self.log_scale = False
self.ampl_phase = False
self.bar_array = numpy.reshape(numpy.arange(self.max), (1, 256))
self.y_scale = (self.min, self.max)
self.plotImage.setData(self.bar_array, None, self.y_scale)
# Over-ride default QWT Plot size policy of MinimumExpanding
# Otherwise minimum size of plots is too large when embedded in a
# QGridlayout
self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
# width limits - the following seem reasonable
# we don't want the bar to resize itself freely - it becomes too big!
# self.setMaximumWidth(self.sizeHint().width() * 2.5)
self.setMaximumWidth(self.sizeHint().width() * 1.5)
self.spy = Spy(self.canvas())
self.spy.MouseMove.connect(self.MouseMoveEvent)
self.spy.MousePress.connect(self.MousePressEvent)
self.spy.MouseRelease.connect(self.MouseReleaseEvent)
self.zoomStack = []
self.xzoom_loc = None
self.yzoom_loc = None
self.prev_xpos = None
self.prev_ypos = None
self.raw_image_min = None
self.raw_image_max = None
# create zoom curve
self.zoom_outline = QwtPlotCurve()
self.setMouseTracking(True)
self.installEventFilter(self)
# add intructions on how to use
self.setWhatsThis(colorbar_instructions)
# create pull_down menu and add menu components
if self._mainwin:
self._menu = QMenu(self._mainwin)
else:
self._menu = QMenu(None)
self._unzoom_action = QAction('unzoom intensity range', self)
self._menu.addAction(self._unzoom_action)
self._unzoom_action.setVisible(False)
self._unzoom_action.triggered.connect(self.unzoom)
self._lock_colorbar = QAction('lock colorbar scale', self)
self._menu.addAction(self._lock_colorbar)
self._lock_colorbar.triggered.connect(self.lock_colorbar)
self._unlock_colorbar = QAction('unlock colorbar scale', self)
self._menu.addAction(self._unlock_colorbar)
self._unlock_colorbar.setVisible(False)
self._unlock_colorbar.triggered.connect(self.unlock_colorbar)
self._lock_bar = False
# for drag & drop stuff ...
self.setAcceptDrops(True)
self.yhb = 0
self.ylb = 0
self.xhb = 0
self.xlb = 0
# __init__()
def lock_colorbar(self):
self._lock_colorbar.setVisible(False)
self._unlock_colorbar.setVisible(True)
if len(self.zoomStack):
self._unzoom_action.setVisible(False)
self._lock_bar = True
self.emit_range()
def unlock_colorbar(self):
self._lock_colorbar.setVisible(True)
self._unlock_colorbar.setVisible(False)
if len(self.zoomStack):
self._unzoom_action.setVisible(True)
self._lock_bar = False
self.emit_range()
def get_data_range(self):
""" returns range of this widget when called by 'foreign'
widget on which we have done a drop event
"""
rng = (self.min, self.max, self.colorbar_number, self.ampl_phase)
return rng
def dragEnterEvent(self, event):
""" drag & drop event callback entered when we move out of or
in to a widget
"""
try:
if event.mimeData().hasText():
event.acceptProposedAction()
except:
pass
def dropEvent(self, event):
""" callback that handles a drop event from drag & drop """
if event.source() == self:
return
if event.mimeData().hasText():
command_str = str(event.mimeData().text())
if command_str.find('copyColorRange') > -1:
components = event.source().get_data_range()
min = components[0]
max = components[1]
colorbar = components[2]
amp_phas = components[3]
if self.colorbar_number == colorbar and not self._lock_bar:
self.zoomStack == []
try:
self.zoomState = (
self.axisScaleDiv(QwtPlot.yLeft).lBound(),
self.axisScaleDiv(QwtPlot.yLeft).hBound(),
)
except:
self.zoomState = (
self.axisScaleDiv(QwtPlot.yLeft).lowerBound(),
self.axisScaleDiv(QwtPlot.yLeft).upperBound(),
)
self.zoomStack.append(self.zoomState)
self._unzoom_action.setVisible(True)
self.setRange(min, max, colorbar, amp_phas)
else:
message = 'QwtColorBar dropEvent decode failure'
mb_reporter = QMessageBox.information(self, "QwtColorBar", message)
event.acceptProposedAction()
def startDrag(self, event):
""" operations done when we start a drag event """
drag = Qt.QDrag(self)
mimedata = Qt.QMimeData()
passed_string = 'copyColorRange'
mimedata.setText(passed_string)
drag.setMimeData(mimedata)
drag.exec_()
event.accept()
def setRange(self, min, max, colorbar_number=0, ampl_phase=False):
""" sets display range for this colorbar and emits signal
to associated display to set corresponding range
"""
if ampl_phase != self.ampl_phase:
return
if colorbar_number == self.colorbar_number:
if min > max:
temp = max
max = min
min = temp
if abs(max - min) < 2.0e-8:
if max == 0.0 or min == 0.0:
min = -0.1
max = 0.1
else:
min = 0.9 * min
max = 1.1 * max
self.min = min * 1.0
self.max = max * 1.0
# send event to display_image.py that range has changed
self.emit_range()
if self.log_scale:
max = log(self.max)
min = log(self.min)
delta = (max - min) / 255.0
for i in range(256):
self.bar_array[0, i] = exp(min + i * delta)
else:
delta = (self.max - self.min) / 255.0
for i in range(256):
self.bar_array[0, i] = self.min + i * delta
self.y_scale = (self.min, self.max)
self.plotImage.setData(self.bar_array, None, self.y_scale)
self.show()
self.replot()
# set Range()
def getTransformOffset(self):
""" get the offset value for a plot with a log scale """
return self.plotImage.getTransformOffset()
def setScales(self):
self.plotImage.setLogScale(self.log_scale)
self.plotImage.setLogYScale(self.log_scale)
self.setAxisAutoScale(QwtPlot.yLeft)
if self.log_scale:
self.setAxisScaleEngine(QwtPlot.yLeft, QwtLogScaleEngine())
else:
self.setAxisScaleEngine(QwtPlot.yLeft, QwtLinearScaleEngine())
def handleRangeParms(self, limits, colorbar_number, log_scale, ampl_phase):
if ampl_phase is None:
ampl_phase = False
self.setMaxRange(limits, colorbar_number, log_scale, ampl_phase)
def setMaxRange(self,
limits,
colorbar_number=0,
log_scale=False,
ampl_phase=False):
""" sets maximum range parameters for this colorbar """
# print('in colorbar setMaxRange : colorbar numbers ',colorbar_number,self.colorbar_number)
if colorbar_number == self.colorbar_number:
self.ampl_phase = ampl_phase
if self.ampl_phase is None:
self.ampl_phase = False
self.log_scale = log_scale
self.setScales()
min = limits[0]
max = limits[1]
try:
self.raw_image_min = limits[2]
self.raw_image_max = limits[3]
except:
pass
if min > max:
temp = max
max = min
min = temp
# if abs(max - min) < 0.00005:
if abs(max - min) < 2.0e-8:
if max == 0.0 or min == 0.0:
min = -0.1
max = 0.1
else:
min = 0.9 * min
max = 1.1 * max
if not self._lock_bar:
self.image_min = min * 1.0
self.image_max = max * 1.0
self.min = self.image_min
self.max = self.image_max
if self.log_scale:
if self.min <= 0.0:
offset = -1.0 * self.min + 0.001
self.min = self.min + offset
self.max = self.max + offset
self.image_min = self.min
self.image_max = self.max
max = log(self.max)
min = log(self.min)
delta = (max - min) / 255.0
for i in range(256):
self.bar_array[0, i] = exp(min + i * delta)
if HAS_TIMBA: _dprint(3, 'log bar array is ', self.bar_array)
else:
delta = (self.max - self.min) / 255.0
for i in range(256):
self.bar_array[0, i] = self.min + i * delta
if not self._lock_bar:
self.y_scale = (self.min, self.max)
self.plotImage.setData(self.bar_array, None, self.y_scale)
self.show()
self.replot()
# setMaxRange()
def showDisplay(self, show_self, colorbar_number=0):
""" callback to show or hide this colorbar """
# print('in colorbar show display with self.colorbar_number', self.colorbar_number)
if colorbar_number == self.colorbar_number:
self.is_active = True
if show_self > 0:
self.show()
# print('should show')
else:
self.hide()
# print('should hide')
self.replot()
# showDisplay
def unHide(self):
""" callback to show this colorbar """
if self.is_active:
self.show()
def emit_range(self):
# print('emitting range')
self.set_image_range.emit(self.min, self.max, self.colorbar_number,
self._lock_bar)
def setBarLock(self, set_lock=False):
self._lock_bar = set_lock
if self._lock_bar:
toggle_id = self.menu_table['lock colorbar scale']
self._menu.setItemVisible(toggle_id, False)
toggle_id = self.menu_table['unlock colorbar scale']
self._menu.setItemVisible(toggle_id, True)
else:
toggle_id == self.menu_table['unlock colorbar scale']
self._menu.setItemVisible(toggle_id, False)
toggle_id = self.menu_table['lock colorbar scale']
self._menu.setItemVisible(toggle_id, True)
self.emit_range()
def unzoom(self):
""" callback to set range of this colorbar back to default """
if len(self.zoomStack):
while len(self.zoomStack):
ymin, ymax = self.zoomStack.pop()
self._unzoom_action.setVisible(False)
if not self.raw_image_min is None:
self.image_min = self.raw_image_min
self.image_max = self.raw_image_max
self.setAxisScale(QwtPlot.yLeft, self.image_min, self.image_max)
if self.image_min > self.image_max:
temp = self.image_max
self.image_max = self.image_min
self.image_min = temp
self.setRange(self.image_min, self.image_max, self.colorbar_number,
self.ampl_phase)
# set the type of colorbar display, can be one of "hippo", "grayscale"
# or "brentjens"
def setDisplayType(self, display_type):
self.plotImage.setDisplayType(display_type)
self.plotImage.setData(self.bar_array, None, self.y_scale)
self.replot()
# setDisplayType()
def drawCanvasItems(self, painter, rectangle, maps, filter):
self.plotImage.drawImage(painter, maps[QwtPlot.xBottom],
maps[QwtPlot.yLeft])
QwtPlot.drawCanvasItems(self, painter, rectangle, maps, filter)
# drawCanvasItems()
def MouseMoveEvent(self, e):
""" callback to handle mouse moved event """
# print('in mouse move event')
position = e.pos()
xPos = position.x()
yPos = position.y()
self.xpos = self.invTransform(QwtPlot.xBottom, xPos)
self.ypos = self.invTransform(QwtPlot.yLeft, yPos)
if not self.xzoom_loc is None:
self.xzoom_loc = [
self.press_xpos, self.press_xpos, self.xpos, self.xpos,
self.press_xpos
]
self.yzoom_loc = [
self.press_ypos, self.ypos, self.ypos, self.press_ypos,
self.press_ypos
]
if self.zoom_outline is None:
self.zoom_outline = QwtPlotCurve()
self.zoom_outline.setSamples(self.xzoom_loc, self.yzoom_loc)
self.replot()
# Test if mouse has moved outside the plot. If yes, we're
# starting a drag.
if xPos < self.xlb - 10 or xPos > self.xhb + 10 or yPos > self.ylb + 10 or yPos < self.yhb - 10:
if not self.xzoom_loc is None:
self.zoom_outline.detach()
self.xzoom_loc = None
self.yzoom_loc = None
self.replot()
self.startDrag(e)
# onMouseMoved()
def MousePressEvent(self, e):
""" callback to handle mouse pressed event """
if Qt.LeftButton == e.button():
# get bounds of plot. Keep them around for later test if
# we're initiating a drag operation
try:
self.yhb = self.transform(
QwtPlot.yLeft,
self.axisScaleDiv(QwtPlot.yLeft).hBound())
self.ylb = self.transform(
QwtPlot.yLeft,
self.axisScaleDiv(QwtPlot.yLeft).lBound())
self.xhb = self.transform(
QwtPlot.xBottom,
self.axisScaleDiv(QwtPlot.xBottom).hBound())
self.xlb = self.transform(
QwtPlot.xBottom,
self.axisScaleDiv(QwtPlot.xBottom).lBound())
except:
self.yhb = self.transform(
QwtPlot.yLeft,
self.axisScaleDiv(QwtPlot.yLeft).upperBound())
self.ylb = self.transform(
QwtPlot.yLeft,
self.axisScaleDiv(QwtPlot.yLeft).lowerBound())
self.xhb = self.transform(
QwtPlot.xBottom,
self.axisScaleDiv(QwtPlot.xBottom).upperBound())
self.xlb = self.transform(
QwtPlot.xBottom,
self.axisScaleDiv(QwtPlot.xBottom).lowerBound())
# Python semantics: self.pos = e.pos() does not work; force a copy
if HAS_TIMBA: _dprint(3, 'e.pos() ', e.pos())
self.press_xpos = self.xpos
self.press_ypos = self.ypos
if HAS_TIMBA:
_dprint(3, 'self.xpos self.ypos ', self.xpos, ' ', self.ypos)
if not self._lock_bar:
self.xzoom_loc = [self.press_xpos]
self.yzoom_loc = [self.press_ypos]
self.zoom_outline.attach(self)
if self.zoomStack == []:
try:
self.zoomState = (
self.axisScaleDiv(QwtPlot.yLeft).lBound(),
self.axisScaleDiv(QwtPlot.yLeft).hBound(),
)
except:
self.zoomState = (
self.axisScaleDiv(QwtPlot.yLeft).lowerBound(),
self.axisScaleDiv(QwtPlot.yLeft).upperBound(),
)
# fake a mouse move to show the cursor position
# self.onMouseMoved(e)
elif Qt.RightButton == e.button():
e.accept()
self._menu.popup(e.globalPos())
# onMousePressed()
def MouseReleaseEvent(self, e):
""" handles mouse release event if we're not doing a drop """
# if color bar is locked, do nothing
if self._lock_bar:
return
if Qt.LeftButton == e.button():
xmin = min(self.xpos, self.press_xpos)
xmax = max(self.xpos, self.press_xpos)
ymin = min(self.ypos, self.press_ypos)
ymax = max(self.ypos, self.press_ypos)
if not self.xzoom_loc is None:
self.zoom_outline.detach()
self.xzoom_loc = None
self.yzoom_loc = None
if xmin == xmax or ymin == ymax:
return
self.zoomStack.append(self.zoomState)
# print('self.zoomsSack', self.zoomStack)
self.zoomState = (ymin, ymax)
if len(self.zoomStack):
self._unzoom_action.setVisible(True)
elif Qt.RightButton == e.button():
if len(self.zoomStack):
ymin, ymax = self.zoomStack.pop()
else:
return
self.setAxisScale(QwtPlot.yLeft, ymin, ymax)
if ymin > ymax:
temp = ymax
ymax = ymin
ymin = temp
self.setRange(ymin, ymax, self.colorbar_number, self.ampl_phase)
self.replot()
# onMouseReleased()
def updateDisplay(self):
# calculate 3 NumPy arrays
self.gain = 1.0
# image
self.plotImage.setData(
square(512, -1.0 * self.gain * pi,
self.gain * pi), (-1.0 * self.gain * pi, self.gain * pi),
(-1.0 * self.gain * pi, self.gain * pi))
class QwtImagePlot(QwtPlot):
def __init__(self, *args):
QwtPlot.__init__(self, *args)
# make a QwtPlot widget
self.plotLayout().setCanvasMargin(0)
self.plotLayout().setAlignCanvasToScales(1)
self.setTitle('QwtImagePlot: (un)zoom & (un)hide')
# set axis titles
self.setAxisTitle(QwtPlot.xBottom, 'time (s)')
self.setAxisTitle(QwtPlot.yLeft, 'frequency (Hz)')
# insert a few curves
self.cSin = QwtPlotCurve('y = pi*sin(x)')
self.cCos = QwtPlotCurve('y = 4*pi*sin(x)*cos(x)**2')
self.cSin.attach(self)
self.cCos.attach(self)
# set curve styles
self.cSin.setPen(QPen(Qt.green, 2))
self.cCos.setPen(QPen(Qt.black, 2))
self.xzoom_loc = None
self.yzoom_loc = None
self.xpos = None
self.ypos = None
# attach a grid
grid = QwtPlotGrid()
grid.attach(self)
grid.setPen(Qt.black, 0, Qt.DotLine)
# create zoom curve
self.zoom_outline = QwtPlotCurve()
self.zoom_outline.setStyle(QwtPlotCurve.Lines)
# create and initialize an image display
self.plotImage = QwtPlotImage(self)
self.plotImage.attach(self)
self.gain = 2.0
self.updateDisplay()
self.zoomStack = []
self.spy = Spy(self.canvas())
self.prev_xpos = None
self.prev_ypos = None
# self.connect(self, Qt.SIGNAL("legendClicked(QwtPlotItem*)"),
# self.toggleVisibility)
self.spy.MouseMove.connect(self.onmouseMoveEvent)
self.spy.MousePress.connect(self.onmousePressEvent)
self.spy.MouseRelease.connect(self.onmouseReleaseEvent)
# __init__()
def toggleVisibility(self, plotItem):
"""Toggle the visibility of a plot item
"""
plotItem.setVisible(not plotItem.isVisible())
self.replot()
# showCoordinates()
def updateDisplay(self):
offset = 3
# calculate 3 NumPy arrays
x = numpy.arange(-1.0 * self.gain*math.pi, self.gain*math.pi, 0.01)
y = math.pi*numpy.sin(x) + offset
z = self.gain * self.gain*math.pi*numpy.cos(x)*numpy.cos(x)*numpy.sin(x) + offset
# copy the data
self.cSin.setSamples(x, y)
self.cCos.setSamples(x, z)
# image
test_image = sinx_image(8,16,offset)
self.plotImage.setData(test_image)
# self.plotImage.setData(
# square(512,-1.0 * self.gain*math.pi, self.gain*math.pi), (-1.0*self.gain*math.pi, self.gain*math.pi), (-1.0*self.gain*math.pi, self.gain*math.pi))
def updateBarDisplay(self):
self.min = 0.0
self.max = 256.0
self.bar_array = numpy.reshape(numpy.arange(self.max), (1,256))
self.y_scale = (self.min, self.max)
self.plotImage.setData(self.bar_array, None, self.y_scale)
def start_timer(self, time):
""" start a timer going to update the image every 1/10 sec """
self.timer = QTimer(self)
self.timer.timeout.connect(self.testEvent)
self.timer.start(time)
def testEvent(self):
""" change the gain factor and recalculate the image """
self.gain = self.gain + 1.0
self.updateDisplay()
self.updateBarDisplay()
self.replot()
def mouseCatch(self,x,y,z):
print('in mouseCatch')
print('caught', x,y, z)
def onmouseMoveEvent(self,event):
position = event.pos()
x = position.x()
y = position.y()
button = event.button()
if not self.xpos is None:
self.xpos = self.invTransform(QwtPlot.xBottom, x)
self.ypos = self.invTransform(QwtPlot.yLeft, y)
if not self.xzoom_loc is None:
self.xzoom_loc = [self.press_xpos, self.press_xpos, self.xpos, self.xpos,self.press_xpos]
self.yzoom_loc = [self.press_ypos, self.ypos, self.ypos, self.press_ypos,self.press_ypos]
self.zoom_outline.setSamples(self.xzoom_loc,self.yzoom_loc)
self.replot()
def onmousePressEvent(self,event):
position = event.pos()
x = position.x()
y = position.y()
button = event.button()
if Qt.LeftButton == button:
if self.xpos is None:
self.xpos = self.invTransform(QwtPlot.xBottom, x)
self.ypos = self.invTransform(QwtPlot.yLeft, y)
# Python semantics: self.pos = e.pos() does not work; force a copy
self.press_xpos = self.xpos
self.press_ypos = self.ypos
self.xzoom_loc = [self.press_xpos]
self.yzoom_loc = [self.press_ypos]
self.zoom_outline.attach(self)
self.zooming = 1
if self.zoomStack == []:
try:
self.zoomState = (
self.axisScaleDiv(QwtPlot.xBottom).lBound(),
self.axisScaleDiv(QwtPlot.xBottom).hBound(),
self.axisScaleDiv(QwtPlot.yLeft).lBound(),
self.axisScaleDiv(QwtPlot.yLeft).hBound(),
)
except:
self.zoomState = (
self.axisScaleDiv(QwtPlot.xBottom).lowerBound(),
self.axisScaleDiv(QwtPlot.xBottom).upperBound(),
self.axisScaleDiv(QwtPlot.yLeft).lowerBound(),
self.axisScaleDiv(QwtPlot.yLeft).upperBound(),
)
elif Qt.RightButton == button:
self.zooming = 0
# mousePressEvent()
def onmouseReleaseEvent(self,event):
position = event.pos()
x = position.x()
y = position.y()
button = event.button()
if Qt.LeftButton == button:
xmin = min(self.xpos, self.press_xpos)
xmax = max(self.xpos, self.press_xpos)
ymin = min(self.ypos, self.press_ypos)
ymax = max(self.ypos, self.press_ypos)
if not self.xzoom_loc is None:
self.zoom_outline.detach()
self.xzoom_loc = None
self.yzoom_loc = None
if xmin == xmax or ymin == ymax:
return
self.zoomStack.append(self.zoomState)
self.zoomState = (xmin, xmax, ymin, ymax)
elif Qt.RightButton == button:
# we back up the zoom stack
if len(self.zoomStack):
xmin, xmax, ymin, ymax = self.zoomStack.pop()
else:
return
if button != Qt.MidButton:
self.setAxisScale(QwtPlot.xBottom, xmin, xmax)
self.setAxisScale(QwtPlot.yLeft, ymin, ymax)
self.plotImage.update_xMap_draw(xmin,xmax)
self.plotImage.update_yMap_draw(ymin,ymax)
self.replot()
# mouseReleaseEvent()
def toggleCurve(self, key):
curve = self.curve(key)
if curve:
curve.setEnabled(not curve.enabled())
self.replot()
class ZoomPopup(QWidget):
winclosed = pyqtSignal(int)
winpaused = pyqtSignal(int)
save_zoom_display = pyqtSignal(str, int)
image_auto_scale = pyqtSignal(int)
image_scale_values = pyqtSignal(float, float)
def __init__(self,
CurveNumber,
x_values,
y_values,
flags,
pen,
parent=None,
name=None):
""" Initialises all the variables.
creates the main zoom plot
connects the qt signals
"""
QWidget.__init__(self, parent)
self.setWindowTitle('Channel ' + str(CurveNumber))
self._parent = parent
self._d_zoomActive = self._d_zoom = False
self._curve_number = CurveNumber
self.curves = {}
self._do_close = True # enable closing by window manager
self._do_pause = False # pause mode is False at startup
self._compare_max = False
self._do_linear_scale = True # linear Y axis scale by default
self._do_fixed_scale = False # auto scaling by default
self._array_label = "Channel "
#Create the plot for selected curve to zoom
self._plotter = QwtImageDisplay(self)
self._plotter.setZoomDisplay()
self._zoom_plot_label = self._array_label + str(
self._curve_number) + " Sequence (oldest to most recent)"
self._max_crv = -1 # negative value used to indicate that this display
self._min_crv = -1 # is not being used
#####end of parameters set for the plot#######/
# we seem to need a layout for PyQt
box1 = QHBoxLayout(self)
box1.addWidget(self._plotter)
# self.plotPrinter = plot_printer_qt5.plot_printer(self._plotter)
self._plotter.winpaused.connect(self.Pausing)
self._plotter.compare.connect(self.do_compare)
# self._plotter.do_print.connnect(self.plotPrinter.do_print)
self._plotter.save_display.connect(self.handle_save_display)
# insert flags ?
self._plotter.initVellsContextMenu()
self.update_plot(y_values, flags)
self.show()
def handle_save_display(self, title):
self.save_zoom_display.emit(self._zoom_plot_label, self._curve_number)
def do_compare_max(self, x_values):
### instantiate the envelop that will show min/max deviations
self._max_envelop = self._y_values
self._min_envelop = self._y_values
self._max_crv = QwtPlotCurve('Zoomed max curve')
self._max_crv.attach(self._plotter)
self._min_crv = QwtPlotCurve('Zoomed min curve')
self._min_crv.attach(self._plotter)
self._max_crv.setData(x_values, self._max_envelop)
self._min_crv.setData(x_values, self._min_envelop)
self._compare_max = True
def do_compare(self):
print('in zoomwin do_compare')
if self._compare_max:
self.stop_compare_max()
self._compare_max = False
else:
self._max_envelop = self._y_values
self._min_envelop = self._y_values
self._max_crv = QwtPlotCurve('Zoomed max curve')
self._max_crv.attach(self._plotter)
self._min_crv = QwtPlotCurve('Zoomed min curve')
self._min_crv.attach(self._plotter)
self._max_crv.setData(x_values, self._max_envelop)
self._min_crv.setData(x_values, self._min_envelop)
self._compare_max = True
self.reset_max()
def stop_compare_max(self):
if self._compare_max:
self._max_envelop = 0.0
self._min_envelop = 0.0
self._max_crv.detach()
self._min_crv.detach()
self._compare_max = False
self._max_crv = -1
self._min_crv = -1
def get_max(self):
if self._compare_max:
self._max_envelop = self.max(self._max_envelop, self._y_values)
self._min_envelop = self.min(self._min_envelop, self._y_values)
def max(self, array1, array2):
shape = array1.shape
max_envelop = array1
for i in range(shape[0]):
if array2[i] > array1[i]:
max_envelop[i] = array2[i]
return max_envelop
def min(self, array1, array2):
shape = array1.shape
min_envelop = array1
for i in range(shape[0]):
if array2[i] < array1[i]:
min_envelop[i] = array2[i]
return min_envelop
def reset_max(self):
if self._compare_max:
self._max_envelop = self._y_values
self._min_envelop = self._y_values
def test_max(self):
if self._compare_max:
return True
else:
return False
def pause_mode(self):
if self._do_pause:
return True
else:
return False
def exec_close(self):
self.close()
def Pausing(self):
self.winpaused.emit(self._curve_number)
def change_scale_type(self):
# click means change to fixed scale
toggle_id = self.menu_table['Fixed Scale ']
if self._do_fixed_scale:
self._do_fixed_scale = False
self._menu.changeItem(toggle_id, 'Fixed Scale')
self._plotter.setAxisAutoScale(QwtPlot.yLeft)
self.image_auto_scale.emit(0)
else:
self._do_fixed_scale = True
self._menu.changeItem(toggle_id, 'Auto Scale')
# find current data min and max
scale_max = self._y_values.max()
scale_min = self._y_values.min()
def set_scale_values(self, max_value, min_value):
if self._do_fixed_scale:
self.image_scale_values.emit(max_value, min_value)
self._plotter.setAxisScale(QwtPlot.yLeft, min_value, max_value)
self._plotter.replot()
def cancel_scale_request(self):
if self._do_fixed_scale:
toggle_id = self.menu_table['Fixed Scale ']
self._menu.changeItem(toggle_id, 'Fixed Scale')
self._plotter.setAxisAutoScale(QwtPlot.yLeft)
self._do_fixed_scale = False
def update_plot(self, y_values, flags):
if not self._do_pause:
self._plotter.unsetFlagsData()
self._y_values = y_values
abs_flags = numpy.absolute(flags)
if abs_flags.max() > 0:
if len(flags) == len(self._y_values):
self._plotter.setFlagsData(flags, flip_axes=True)
self._plotter.set_flag_toggles_active(True, False)
else:
self._plotter.set_flag_toggles_active(False, False)
self._plotter.array_plot(incoming_plot_array=self._y_values,
flip_axes=True)
# self.get_max()
self._plotter.replot()
def setDataLabel(self, data_label, array_label, is_array=False):
self._data_label = data_label
if array_label is None:
self._array_label = 'Ch ' + str(self._curve_number)
else:
self._array_label = array_label
if is_array:
self._zoom_plot_label = self._data_label + ": " + self._array_label
else:
self._zoom_plot_label = self._data_label + ": " + self._array_label + " Sequence (oldest to most recent)"
self._plotter.setAxisTitle(QwtPlot.xBottom, self._zoom_plot_label)
self._plotter._x_title = self._zoom_plot_label
self.setWindowTitle(self._zoom_plot_label)
def plotMouseMoved(self, e):
""" Gets x and y position of the mouse on the plot according to axis' value
set right text on the button and underneath the plot
"""
# (I) e (QMouseEvent) Mouse event
lbl = QString("Event=")
lbl2 = QString("")
lbl2.setNum(self._plotter.invTransform(QwtPlot.xBottom,
e.pos().x()), 'g', 3)
lbl += lbl2 + ", Signal="
lbl2.setNum(self._plotter.invTransform(QwtPlot.yLeft,
e.pos().y()), 'g', 3)
lbl += lbl2
# self._ControlFrame._lblInfo.setText(lbl)
def closeEvent(self, ce):
if self._do_close:
self.winclosed.emit(self._curve_number)
ce.accept()
else:
ce.ignore()
