"""
basemap - Plot a base map and frames.
"""
from pygmt.clib import Session
from pygmt.exceptions import GMTInvalidInput
from pygmt.helpers import (
args_in_kwargs,
build_arg_string,
fmt_docstring,
kwargs_to_strings,
use_alias,
)
@fmt_docstring
@use_alias(
R="region",
J="projection",
Jz="zscale",
JZ="zsize",
B="frame",
L="map_scale",
Td="rose",
Tm="compass",
U="timestamp",
V="verbose",
X="xshift",
Y="yshift",
p="perspective",
t="transparency",
)
@kwargs_to_strings(R="sequence", p="sequence")
def basemap(self, **kwargs):
"""
Plot base maps and frames for the figure.
Creates a basic or fancy basemap with axes, fill, and titles. Several
map projections are available, and the user may specify separate
tick-mark intervals for boundary annotation, ticking, and [optionally]
gridlines. A simple map scale or directional rose may also be plotted.
At least one of the options *frame*, *map_scale*, *rose* or *compass*
must be specified.
Full option list at :gmt-docs:`basemap.html`
{aliases}
Parameters
----------
{J}
zscale/zsize : float or str
Set z-axis scaling or z-axis size.
{R}
{B}
map_scale : str
``'[g|j|J|n|x]refpoint'``
Draws a simple map scale centered on the reference point specified.
rose : str
Draws a map directional rose on the map at the location defined by
the reference and anchor points.
compass : str
Draws a map magnetic rose on the map at the location defined by the
reference and anchor points
{U}
{V}
{XY}
{p}
{t}
"""
kwargs = self._preprocess(**kwargs)
if not args_in_kwargs(args=["B", "L", "Td", "Tm"], kwargs=kwargs):
raise GMTInvalidInput(
"At least one of frame, map_scale, compass, or rose must be specified."
)
with Session() as lib:
lib.call_module("basemap", build_arg_string(kwargs))