periodic.py¶

from bokeh.models import HoverTool, ColumnDataSource
from bokeh.plotting import figure, show
from bokeh.sampledata.periodic_table import elements

romans = ["I", "II", "III", "IV", "V", "VI", "VII"]

elements = elements.copy()
elements["atomic mass"] = elements["atomic mass"].astype(str)

elements["period"] = [romans[x-1] for x in elements.period]
elements = elements[elements.group != "-"]

group_range = [str(x) for x in range(1, 19)]

colormap = {
    "alkali metal"         : "#a6cee3",
    "alkaline earth metal" : "#1f78b4",
    "halogen"              : "#fdbf6f",
    "metal"                : "#b2df8a",
    "metalloid"            : "#33a02c",
    "noble gas"            : "#bbbb88",
    "nonmetal"             : "#baa2a6",
    "transition metal"     : "#e08e79",
}

source = ColumnDataSource(
    data=dict(
        group=[str(x) for x in elements["group"]],
        period=[str(y) for y in elements["period"]],
        symx=[str(x)+":0.1" for x in elements["group"]],
        numbery=[str(x)+":0.8" for x in elements["period"]],
        massy=[str(x)+":0.15" for x in elements["period"]],
        namey=[str(x)+":0.3" for x in elements["period"]],
        sym=elements["symbol"],
        name=elements["name"],
        cpk=elements["CPK"],
        atomic_number=elements["atomic number"],
        electronic=elements["electronic configuration"],
        mass=elements["atomic mass"],
        type=elements["metal"],
        type_color=[colormap[x] for x in elements["metal"]],
    )
)

p = figure(title="Periodic Table", tools="hover,save",
           x_range=group_range, y_range=list(reversed(romans)))
p.plot_width = 1200
p.toolbar_location = None
p.outline_line_color = None

p.rect("group", "period", 0.9, 0.9, source=source,
       fill_alpha=0.6, color="type_color")

text_props = {
    "source": source,
    "angle": 0,
    "color": "black",
    "text_align": "left",
    "text_baseline": "middle"
}

p.text(x="symx", y="period", text="sym",
       text_font_style="bold", text_font_size="15pt", **text_props)

p.text(x="symx", y="numbery", text="atomic_number",
       text_font_size="9pt", **text_props)

p.text(x="symx", y="namey", text="name",
       text_font_size="6pt", **text_props)

p.text(x="symx", y="massy", text="mass",
       text_font_size="5pt", **text_props)

p.grid.grid_line_color = None

p.select_one(HoverTool).tooltips = [
    ("name", "@name"),
    ("atomic number", "@atomic_number"),
    ("type", "@type"),
    ("atomic mass", "@mass"),
    ("CPK color", "$color[hex, swatch]:cpk"),
    ("electronic configuration", "@electronic"),
]

show(p)  # Change to save(p) to save but not show the HTML file