"""
plot3d - Plot in three dimensions.
"""
import numpy as np
from pygmt.clib import Session
from pygmt.exceptions import GMTInvalidInput
from pygmt.helpers import (
build_arg_string,
data_kind,
dummy_context,
fmt_docstring,
is_nonstr_iter,
kwargs_to_strings,
use_alias,
)
@fmt_docstring
@use_alias(
A="straight_line",
B="frame",
C="cmap",
D="offset",
G="color",
I="intensity",
J="projection",
Jz="zscale",
JZ="zsize",
L="close",
N="no_clip",
Q="no_sort",
R="region",
S="style",
V="verbose",
W="pen",
X="xshift",
Y="yshift",
Z="zvalue",
i="columns",
l="label",
p="perspective",
t="transparency",
)
@kwargs_to_strings(R="sequence", i="sequence_comma", p="sequence")
def plot3d(
self, x=None, y=None, z=None, data=None, sizes=None, direction=None, **kwargs
):
"""
Plot lines, polygons, and symbols in 3-D.
Takes a matrix, (x,y,z) triplets, or a file name as input and plots
lines, polygons, or symbols at those locations in 3-D.
Must provide either *data* or *x*, *y* and *z*.
If providing data through *x*, *y* and *z*, *color* can be a 1d array
that will be mapped to a colormap.
If a symbol is selected and no symbol size given, then plot3d will
interpret the fourth column of the input data as symbol size. Symbols
whose size is <= 0 are skipped. If no symbols are specified then the
symbol code (see *style* below) must be present as last column in the
input. If *style* is not used, a line connecting the data points will
be drawn instead. To explicitly close polygons, use *close*. Select a
fill with *color*. If *color* is set, *pen* will control whether the
polygon outline is drawn or not. If a symbol is selected, *color* and
*pen* determines the fill and outline/no outline, respectively.
Full option list at :gmt-docs:`plot3d.html`
{aliases}
Parameters
----------
x/y/z : float or 1d arrays
The x, y, and z coordinates, or arrays of x, y and z coordinates of
the data points
data : str or 2d array
Either a data file name or a 2d numpy array with the tabular data.
Use option *columns* (i) to choose which columns are x, y, z,
color, and size, respectively.
sizes : 1d array
The sizes of the data points in units specified in *style* (S).
Only valid if using *x*, *y* and *z*.
direction : list of two 1d arrays
If plotting vectors (using ``style='V'`` or ``style='v'``), then
should be a list of two 1d arrays with the vector directions. These
can be angle and length, azimuth and length, or x and y components,
depending on the style options chosen.
{J}
zscale/zsize : float or str
Set z-axis scaling or z-axis size.
{R}
straight_line : bool or str
``[m|p|x|y]``.
By default, geographic line segments are drawn as great circle
arcs. To draw them as straight lines, use *straight_line*.
Alternatively, add **m** to draw the line by first following a
meridian, then a parallel. Or append **p** to start following a
parallel, then a meridian. (This can be practical to draw a line
along parallels, for example). For Cartesian data, points are
simply connected, unless you append **x** or **y** to draw
stair-case curves that whose first move is along *x* or *y*,
respectively. **Note**: The **straight_line** option requires
constant *z*-coordinates.
{B}
{CPT}
offset : str
``dx/dy[/dz]``.
Offset the plot symbol or line locations by the given amounts
*dx/dy*[*dz*] [Default is no offset].
{G}
intensity : float or bool
Provide an *intens* value (nominally in the -1 to +1 range) to
modulate the fill color by simulating illumination [None]. If
using ``intensity=True``, we will instead read *intens* from the
first data column after the symbol parameters (if given).
close : str
``[+b|d|D][+xl|r|x0][+yl|r|y0][+ppen]``.
Force closed polygons. Full documentation is at
:gmt-docs:`plot3d.html#l`.
no_clip : bool or str
``[c|r]``.
Do NOT clip symbols that fall outside map border [Default plots
points whose coordinates are strictly inside the map border only].
The option does not apply to lines and polygons which are always
clipped to the map region. For periodic (360-longitude) maps we
must plot all symbols twice in case they are clipped by the
repeating boundary. ``no_clip=True`` will turn off clipping and not
plot repeating symbols. Use ``no_clip="r"`` to turn off clipping
but retain the plotting of such repeating symbols, or use
``no_clip="c"`` to retain clipping but turn off plotting of
repeating symbols.
no_sort : bool
Turn off the automatic sorting of items based on their distance
from the viewer. The default is to sort the items so that items in
the foreground are plotted after items in the background.
style : str
Plot symbols. Full documentation is at :gmt-docs:`plot3d.html#s`.
{U}
{V}
{W}
{XY}
zvalue : str
``value|file``.
Instead of specifying a symbol or polygon fill and outline color
via **color** and **pen**, give both a *value* via **zvalue** and a
color lookup table via **cmap**. Alternatively, give the name of a
*file* with one z-value (read from the last column) for each
polygon in the input data. To apply it to the fill color, use
``color='+z'``. To apply it to the pen color, append **+z** to
**pen**.
label : str
Add a legend entry for the symbol or line being plotted.
{p}
{t}
*transparency* can also be a 1d array to set varying transparency
for symbols.
"""
kwargs = self._preprocess(**kwargs) # pylint: disable=protected-access
kind = data_kind(data, x, y, z)
extra_arrays = []
if "S" in kwargs and kwargs["S"][0] in "vV" and direction is not None:
extra_arrays.extend(direction)
if "G" in kwargs and not isinstance(kwargs["G"], str):
if kind != "vectors":
raise GMTInvalidInput(
"Can't use arrays for color if data is matrix or file."
)
extra_arrays.append(kwargs["G"])
del kwargs["G"]
if sizes is not None:
if kind != "vectors":
raise GMTInvalidInput(
"Can't use arrays for sizes if data is matrix or file."
)
extra_arrays.append(sizes)
if "t" in kwargs and is_nonstr_iter(kwargs["t"]):
extra_arrays.append(kwargs["t"])
kwargs["t"] = ""
with Session() as lib:
# Choose how data will be passed in to the module
if kind == "file":
file_context = dummy_context(data)
elif kind == "matrix":
file_context = lib.virtualfile_from_matrix(data)
elif kind == "vectors":
file_context = lib.virtualfile_from_vectors(
np.atleast_1d(x), np.atleast_1d(y), np.atleast_1d(z), *extra_arrays
)
with file_context as fname:
arg_str = " ".join([fname, build_arg_string(kwargs)])
lib.call_module("plot3d", arg_str)