Function _init_subplot

plotly/_subplots.py:1132–1160

(
    layout, subplot_type, secondary_y, x_domain, y_domain, max_subplot_ids=None
)

def _init_subplot(
    layout, subplot_type, secondary_y, x_domain, y_domain, max_subplot_ids=None
):
    # Normalize subplot type
    subplot_type = _validate_coerce_subplot_type(subplot_type)

    if max_subplot_ids is None:
        max_subplot_ids = _get_initial_max_subplot_ids()

    # Clamp domain elements between [0, 1].
    # This is only needed to combat numerical precision errors
    # See GH1031
    x_domain = [max(0.0, x_domain[0]), min(1.0, x_domain[1])]
    y_domain = [max(0.0, y_domain[0]), min(1.0, y_domain[1])]

    if subplot_type == "xy":
        subplot_refs = _init_subplot_xy(
            layout, secondary_y, x_domain, y_domain, max_subplot_ids
        )
    elif subplot_type in _single_subplot_types:
        subplot_refs = _init_subplot_single(
            layout, subplot_type, x_domain, y_domain, max_subplot_ids
        )
    elif subplot_type == "domain":
        subplot_refs = _init_subplot_domain(x_domain, y_domain)
    else:
        raise ValueError("Unsupported subplot type: {}".format(repr(subplot_type)))

    return subplot_refs


def _get_cartesian_label(x_or_y, r, c, cnt):