gfftools.py 文件源码

def _plot_lff(panel, left_df, right_df, colorMap, y_pos, bar_thickness, text):
    """ plots a lff patch
      1__________2      ____________
      | #lff      \     \ #rff      \
      | left for   \3     \ right for \
      | forward    /     / forward   /
      5___________/4    /___________/
    """
    #if there is only one feature to plot, then just plot it

    print("plotting lff")
    verts = [(left_df['start'], y_pos + bar_thickness), #1
             (right_df['start'] - chevron_width, y_pos + bar_thickness), #2
             (left_df['stop'], y_pos + (bar_thickness/2)), #3
             (right_df['start'] - chevron_width, y_pos), #4
             (left_df['start'], y_pos), #5
             (left_df['start'], y_pos + bar_thickness), #1
             ]
    codes = [Path.MOVETO,
             Path.LINETO,
             Path.LINETO,
             Path.LINETO,
             Path.LINETO,
             Path.CLOSEPOLY,
             ]
    path = Path(verts, codes)
    patch = patches.PathPatch(path, lw = 0,
                 fc=colorMap[left_df['featType']] )
    text_width = left_df['width']
    if text and text_width >= min_text:
        panel = _plot_label(panel, left_df, y_pos, bar_thickness)
    elif text and text_width < min_text and text_width >= text_cutoff:
        panel = _plot_label(panel, left_df,
                            y_pos, bar_thickness,
                            rotate = True, arrow = True)

    return panel, patch