# Source code for plot_spectrum

    #!/usr/bin/env python
    # -*- coding: utf-8 -*-

    from __future__ import print_function
    import pymzml
    import os

    def main():
        """
        This function shows how to plot a simple spectrum. It can be directly
        plotted via this script or using the python console.

        usage:

            ./plot_spectrum.py

        """

        example_file = os.path.join(
            os.path.dirname(__file__),
            os.pardir,
            'tests',
            'data',
            'example.mzML'
        )
        run = pymzml.run.Reader(example_file)
        p   = pymzml.plot.Factory()
        for spec in run:
            p.new_plot()
            p.add(
                spec.peaks('centroided'),
                color = ( 0, 0, 0 ),
                style = 'sticks',
                name = 'peaks'
            )
            filename = 'example_plot_{0}_{1}.html'.format(
                os.path.basename(example_file),
                spec.ID
            )
            p.save(
                filename = filename
            )
            print('Plotted file: {0}'.format(filename))
            break
    if __name__ == '__main__':
        main()