multiplot.py 文件源码

def __init__(self, sandbox, component, title='Untitled'):
        pg.PlotItem.__init__(self)
        self.title = title
        self.sandbox = sandbox
        self.component = component

        self.cursor = CursorRect()
        self.addCursor()

        self.setAspectLocked(True)
        self.setLabels(
            bottom=('Easting', 'm'),
            left=('Northing', 'm'))

        self.image = pg.ImageItem(
            None,
            autoDownsample=False,
            useOpenGL=True)
        self.addItem(self.image)

        self.title_label = pg.LabelItem(
            text='<span style="color: #9E9E9E;">'
                 '%s</span>' % self.title,
            justify='right', size='10pt',
            parent=self)
        self.title_label.anchor(
            itemPos=(0., 0.),
            parentPos=(.01, .01))
        self.title_label.setOpacity(.6)

        self.sandbox.sigModelUpdated.connect(
            self.update)
        self.sandbox.sources.modelAboutToBeReset.connect(
            self.removeSourceROIS)
        self.sandbox.sources.modelReset.connect(
            self.addSourceROIS)

        self.update()
        self.rois = []
        self.addSourceROIS()