ScatterPlotItem.py 文件源码

def setSize(self, size, update=True, dataSet=None, mask=None):
        """Set the size(s) used to draw each spot.
        If a list or array is provided, then the size for each spot will be set separately.
        Otherwise, the argument will be used as the default size for
        all spots which do not have a size explicitly set."""
        if dataSet is None:
            dataSet = self.data

        if isinstance(size, np.ndarray) or isinstance(size, list):
            sizes = size
            if mask is not None:
                sizes = sizes[mask]
            if len(sizes) != len(dataSet):
                raise Exception("Number of sizes does not match number of points (%d != %d)" % (len(sizes), len(dataSet)))
            dataSet['size'] = sizes
        else:
            self.opts['size'] = size
            self._spotPixmap = None

        dataSet['sourceRect'] = None
        if update:
            self.updateSpots(dataSet)