def constructROI(self, start, end):
if self._roi:
self._viewBox.removeItem(self._roi)
dims = end - start
self._roi = ROI(start, dims, pen={'color': '#00FF00'})
self._roi.addScaleHandle([0, 0], [1, 1])
self._roi.addScaleHandle([1, 1], [0, 0])
self._roi.setZValue(10)
self._viewBox.addItem(self._roi)
def __addROI(self, coords=None):
""" adds ROIs
:param coords: roi coordinates
:type coords: :obj:`list`
< [:obj:`float`, :obj:`float`, :obj:`float`, :obj:`float`] >
"""
if not coords or not isinstance(coords, list) or len(coords) != 4:
pnt = 10 * len(self.__roi)
sz = 50
coords = [pnt, pnt, pnt + sz, pnt + sz]
spnt = _pg.Point(sz, sz)
else:
pnt = _pg.Point(coords[0], coords[1])
spnt = _pg.Point(coords[2] - coords[0], coords[3] - coords[1])
self.__roi.append(ROI(pnt, spnt))
self.__roi[-1].addScaleHandle([1, 1], [0, 0])
self.__roi[-1].addScaleHandle([0, 0], [1, 1])
self.__viewbox.addItem(self.__roi[-1])
self.__rois.coords.append(coords)
def __init__(self, parent=None):
""" constructor
:param parent: parent object
:type parent: :class:`PyQt4.QtCore.QObject`
"""
_pg.GraphicsLayoutWidget.__init__(self, parent)
#: (:class:`PyQt4.QtGui.QLayout`) the main layout
self.__layout = self.ci
#: (:class:`lavuelib.displayParameters.AxesParameters`)
#: axes parameters
self.__lines = displayParameters.CrossLinesParameters()
#: (:class:`lavuelib.displayParameters.AxesParameters`)
#: axes parameters
self.__axes = displayParameters.AxesParameters()
#: (:class:`lavuelib.displayParameters.ROIsParameters`)
#: rois parameters
self.__rois = displayParameters.ROIsParameters()
#: (:class:`lavuelib.displayParameters.CutsParameters`)
#: cuts parameters
self.__cuts = displayParameters.CutsParameters()
#: (:class:`lavuelib.displayParameters.IntensityParameters`)
#: intensity parameters
self.__intensity = displayParameters.IntensityParameters()
#: (:class:`numpy.ndarray`) data to displayed in 2d widget
self.__data = None
#: (:class:`numpy.ndarray`) raw data to cut plots
self.__rawdata = None
#: (:class:`pyqtgraph.ImageItem`) image item
self.__image = _pg.ImageItem()
#: (:class:`pyqtgraph.ViewBox`) viewbox item
self.__viewbox = self.__layout.addViewBox(row=0, col=1)
#: (:obj:`bool`) crooshair locked flag
self.__crosshairlocked = False
self.__viewbox.addItem(self.__image)
#: (:obj:`float`) current x-position
self.__xdata = 0
#: (:obj:`float`) current y-position
self.__ydata = 0
#: (:obj:`bool`) auto display level flag
self.__autodisplaylevels = True
#: (:obj:`bool`) auto down sample
self.__autodownsample = True
#: ([:obj:`float`, :obj:`float`]) minimum and maximum intensity levels
self.__displaylevels = [None, None]
#: (:class:`PyQt4.QtCore.QSignalMapper`) current roi mapper
self.__currentroimapper = QtCore.QSignalMapper(self)
#: (:class:`PyQt4.QtCore.QSignalMapper`) roi region mapper
self.__roiregionmapper = QtCore.QSignalMapper(self)
#: (:class:`PyQt4.QtCore.QSignalMapper`) current cut mapper
self.__currentcutmapper = QtCore.QSignalMapper(self)
#: (:class:`PyQt4.QtCore.QSignalMapper`) cut region mapper
self.__cutregionmapper = QtCore.QSignalMapper(self)
#: (:class:`PyQt4.QtGui.QAction`) set aspect ration locked action
self.__setaspectlocked = QtGui.QAction(
"Set Aspect Locked", self.__viewbox.menu)
self.__setaspectlocked.setCheckable(True)
if _VMAJOR == '0' and int(_VMINOR) < 10 and int(_VPATCH) < 9:
self.__viewbox.menu.axes.insert(0, self.__setaspectlocked)
self.__viewbox.menu.addAction(self.__setaspectlocked)
#: (:class:`PyQt4.QtGui.QAction`) view one to one pixel action
self.__viewonetoone = QtGui.QAction(
"View 1:1 pixels", self.__viewbox.menu)
self.__viewonetoone.triggered.connect(self._oneToOneRange)
if _VMAJOR == '0' and int(_VMINOR) < 10 and int(_VPATCH) < 9:
self.__viewbox.menu.axes.insert(0, self.__viewonetoone)
self.__viewbox.menu.addAction(self.__viewonetoone)
#: (:class:`pyqtgraph.AxisItem`) left axis
self.__leftaxis = _pg.AxisItem('left')
self.__leftaxis.linkToView(self.__viewbox)
self.__layout.addItem(self.__leftaxis, row=0, col=0)
#: (:class:`pyqtgraph.AxisItem`) bottom axis
self.__bottomAxis = _pg.AxisItem('bottom')
self.__bottomAxis.linkToView(self.__viewbox)
self.__layout.addItem(self.__bottomAxis, row=1, col=1)
self.__layout.scene().sigMouseMoved.connect(self.mouse_position)
self.__layout.scene().sigMouseClicked.connect(self.mouse_click)
#: (:class:`pyqtgraph.InfiniteLine`)
#: vertical line of the mouse position
self.__vLine = _pg.InfiniteLine(
angle=90, movable=False, pen=(255, 0, 0))
#: (:class:`pyqtgraph.InfiniteLine`)
#: horizontal line of the mouse position
self.__hLine = _pg.InfiniteLine(
angle=0, movable=False, pen=(255, 0, 0))
self.__viewbox.addItem(self.__vLine, ignoreBounds=True)
self.__viewbox.addItem(self.__hLine, ignoreBounds=True)
#: (:obj:`list` <:class:`pyqtgraph.graphicsItems.ROI`>)
#: list of roi widgets
self.__roi = []
self.__roi.append(ROI(0, _pg.Point(50, 50)))
self.__roi[0].addScaleHandle([1, 1], [0, 0])
self.__roi[0].addScaleHandle([0, 0], [1, 1])
self.__viewbox.addItem(self.__roi[0])
self.__roi[0].hide()
#: (:obj:`list` <:class:`pyqtgraph.graphicsItems.ROI`>)
#: list of cut widgets
self.__cut = []
self.__cut.append(SimpleLineROI([10, 10], [60, 10], pen='r'))
self.__viewbox.addItem(self.__cut[0])
self.__cut[0].hide()
self.__setaspectlocked.triggered.connect(self.emitAspectLockedToggled)
self.__roiregionmapper.mapped.connect(self.changeROIRegion)
self.__currentroimapper.mapped.connect(self._emitROICoordsChanged)
self._getROI().sigHoverEvent.connect(
self.__currentroimapper.map)
self._getROI().sigRegionChanged.connect(
self.__roiregionmapper.map)
self.__currentroimapper.setMapping(self._getROI(), 0)
self.__roiregionmapper.setMapping(self._getROI(), 0)
self.__cutregionmapper.mapped.connect(self.changeCutRegion)
self.__currentcutmapper.mapped.connect(self._emitCutCoordsChanged)
self._getCut().sigHoverEvent.connect(
self.__currentcutmapper.map)
self._getCut().sigRegionChanged.connect(
self.__cutregionmapper.map)
self.__currentcutmapper.setMapping(self._getCut(), 0)
self.__cutregionmapper.setMapping(self._getCut(), 0)
