def __init__(self, parent=None, *args, **kargs): background = kargs.get('background', 'default') GraphicsView.__init__(self, parent, useOpenGL=False, background=background) self.item = HistogramLUTItem_overlay(*args, **kargs) self.setCentralItem(self.item) self.setSizePolicy(QtGui.QSizePolicy.Preferred, QtGui.QSizePolicy.Expanding) self.setMinimumWidth(95)
def __init__(self, parent: QWidget): GraphicsView.__init__(self, parent) self.layout = GraphicsLayout() self.setCentralItem(self.layout) self.tiles: Dict[str, TileView] = dict()
def __init__(self, parent: QWidget): GraphicsView.__init__(self, parent) layout = GraphicsLayout() self.setCentralItem(layout) self._image_item = ImageItem() self.viewbox = ViewBox(layout, lockAspect=True, invertY=True) self.viewbox.addItem(self._image_item) layout.addItem(self.viewbox) self.scale = ScaleBar(size=10, suffix='μm') self.scale.setParentItem(self.viewbox) self.scale.anchor((1, 1), (1, 1), offset=(-20, -20)) self.scale.hide() self._show_mask = False self.blend_mode = QPainter.CompositionMode_Screen self.items: List[ChannelImageItem] = None
def __init__(self): GraphicsView.__init__(self) # create layout self.layout = pg.GraphicsLayout() self.layout.setContentsMargins(0, 0, 0, 0) self.layout.setSpacing(-1.) self.setBackground(None) self.setCentralItem(self.layout) # create axes and apply formatting axisItems = dict() for pos in ['bottom', 'left', 'top', 'right']: axisItems[pos] = AxisItem(orientation=pos, maxTickLength=-7) self.p = PlotItem(axisItems=axisItems) self.setTitle('Sweep data', fontScaling=1.3, color='k') self.layout.addItem(self.p) self.p.vb.setBackgroundColor('w') self.p.setContentsMargins(10, 10, 10, 10) for pos in ['bottom', 'left', 'top', 'right']: ax = self.p.getAxis(pos) ax.setZValue(0) # draw on top of patch ax.setVisible(True) # make all axes visible ax.setPen(width=self.LW * 2 / 3, color=0.5) # grey spines and ticks try: ax.setTextPen('k') # black text except AttributeError: pass ax.setStyle(autoExpandTextSpace=True, tickTextOffset=4) self.p.getAxis('top').setTicks([]) self.p.getAxis('top').setHeight(0) self.p.getAxis('right').setTicks([]) self.x_axis = self.p.getAxis('bottom') self.y_axis = self.p.getAxis('left') self.x_axis.setLabel('Voltage', units='V', color='k', size='12pt') self.y_axis.setLabel('Current', units='A', color='k', size='12pt') self.y_axis.setStyle(tickTextWidth=35) # set auto range and mouse panning / zooming self.p.enableAutoRange(x=True, y=True) self.p.setLimits(xMin=-1e20, xMax=1e20, yMin=-1e20, yMax=1e20) def suggestPadding(axis): length = self.p.vb.width() if axis == 0 else self.p.vb.height() if length > 0: if axis == 0: padding = 0 else: padding = np.clip(1. / (length**0.5), 0.02, 0.1) else: padding = 0.02 return padding self.p.vb.suggestPadding = suggestPadding # set default ranges to start self.p.setXRange(-10, 10) self.p.setYRange(-10, 10) # add legend self.legend = LegendItem(brush=fn.mkBrush(255, 255, 255, 150), labelTextColor='k', offset=(20, -20)) self.legend.setParentItem(self.p.vb)