plots.py 文件源码

def from_layer(layer, **kwargs):
        """Create a LinePlot from a layer

        Parameters
        ----------
        layer: `Spectrum1DRefLayer`
            The layer to create from.

        kwargs: dict
            Other arguments for `LinePlot` class.

        Returns
        -------
        plot_container:
            The new LinePlot
        """
        plot_data_item = pg.PlotDataItem(layer.masked_dispersion, layer.masked_data)

        plot_container = LinePlot(layer=layer, plot=plot_data_item, **kwargs)

        if plot_container.layer.raw_uncertainty is not None:
            plot_error_item = pg.ErrorBarItem(
                x=plot_container.layer.masked_dispersion.compressed().value,
                y=plot_container.layer.masked_data.compressed().value,
                height=plot_container.layer.raw_uncertainty.compressed().value,
            )
            plot_container.error = plot_error_item

        if plot_container.layer.mask is not None:
            mask = plot_container.layer.mask
            x = plot_container.layer.masked_dispersion.data.value[mask]
            y = plot_container.layer.masked_data.data.value[mask]
            plot_mask_item = pg.ScatterPlotItem(
                x=x,
                y=y,
                symbol='x'
            )
            plot_container.mask = plot_mask_item

        return plot_container