# http://pyrocko.org - GPLv3
#
# The Pyrocko Developers, 21st Century
# ---|P------/S----------~Lg----------
'''
Matplotlib plotting with some fancy extras.
'''
from collections import defaultdict
import math
import logging
import numpy as num
import matplotlib
from matplotlib.axes import Axes
# from matplotlib.ticker import MultipleLocator
from matplotlib import cm, colors, colorbar, figure
from pyrocko.guts import Tuple, Float, Object
from pyrocko import plot
import scipy.optimize
logger = logging.getLogger('pyrocko.plot.smartplot')
guts_prefix = 'pf'
inch = 2.54
def get_callbacks(obj):
try:
return obj.callbacks
except AttributeError:
return obj._callbacks
class SmartplotAxes(Axes):
if matplotlib.__version__.split('.') < '3.6'.split('.'):
# Subclassing cla is deprecated on newer mpl but need this fallback for
# older versions. Code is duplicated because mpl behaviour depends
# on the existence of cla in the subclass...
def cla(self):
if hasattr(self, 'callbacks'):
callbacks = self.callbacks
Axes.cla(self)
self.callbacks = callbacks
else:
Axes.cla(self)
else:
def clear(self):
if hasattr(self, 'callbacks'):
callbacks = self.callbacks
Axes.clear(self)
self.callbacks = callbacks
elif hasattr(self, '_callbacks'):
callbacks = self._callbacks
Axes.clear(self)
self._callbacks = callbacks
else:
Axes.clear(self)
class SmartplotFigure(figure.Figure):
def set_smartplot(self, plot):
self._smartplot = plot
def draw(self, *args, **kwargs):
if hasattr(self, '_smartplot'):
try:
self._smartplot._update_layout()
except NotEnoughSpace:
logger.error('Figure is too small to show the plot.')
return
return figure.Figure.draw(self, *args, **kwargs)
def limits(points):
lims = num.zeros((3, 2))
if points.size != 0:
lims[:, 0] = num.min(points, axis=0)
lims[:, 1] = num.max(points, axis=0)
return lims
def wcenter(rect):
return rect[0] + rect[2]*0.5
def hcenter(rect):
return rect[1] + rect[3]*0.5
def window_min(n, w, ml, mu, s, x):
return ml + x/float(n) * (w - (ml + mu + (n-1)*s)) + math.floor(x) * s
def window_max(n, w, ml, mu, s, x):
return ml + x/float(n) * (w - (ml + mu + (n-1)*s)) + (math.floor(x)-1) * s
def make_smap(cmap, norm=None):
if isinstance(norm, tuple):
norm = colors.Normalize(*norm, clip=False)
smap = cm.ScalarMappable(cmap=cmap, norm=norm)
smap._A = [] # not needed in newer versions of mpl?
return smap
def solve_layout_fixed_panels(size, shape, limits, aspects, fracs=None):
weight_aspect = 1000.
sx, sy = size
nx, ny = shape
nvar = nx+ny
vxs, vys = limits
uxs = vxs[:, 1] - vxs[:, 0]
uys = vys[:, 1] - vys[:, 0]
aspects_xx, aspects_yy, aspects_xy = aspects
if fracs is None:
wxs = num.full(nx, sx / nx)
wys = num.full(ny, sy / ny)
else:
frac_x, frac_y = fracs
wxs = sx * frac_x / num.sum(frac_x)
wys = sy * frac_y / num.sum(frac_y)
data = []
weights = []
rows = []
bounds = []
for ix in range(nx):
u = uxs[ix]
assert u > 0.0
row = num.zeros(nvar)
row[ix] = u
rows.append(row)
data.append(wxs[ix])
weights.append(1.0 / u)
bounds.append((0, wxs[ix] / u))
for iy in range(ny):
u = uys[iy]
assert u > 0.0
row = num.zeros(nvar)
row[nx+iy] = u
rows.append(row)
data.append(wys[iy])
weights.append(1.0)
bounds.append((0, wys[iy] / u))
for ix1, ix2, aspect in aspects_xx:
row = num.zeros(nvar)
row[ix1] = aspect
row[ix2] = -1.0
weights.append(weight_aspect/aspect)
rows.append(row)
data.append(0.0)
for iy1, iy2, aspect in aspects_yy:
row = num.zeros(nvar)
row[nx+iy1] = aspect
row[nx+iy2] = -1.0
weights.append(weight_aspect/aspect)
rows.append(row)
data.append(0.0)
for ix, iy, aspect in aspects_xy:
row = num.zeros(nvar)
row[ix] = aspect
row[nx+iy] = -1.0
weights.append(weight_aspect/aspect)
rows.append(row)
data.append(0.0)
weights = num.array(weights)
data = num.array(data)
mat = num.vstack(rows) * weights[:, num.newaxis]
data *= weights
bounds = num.array(bounds).T
model = scipy.optimize.lsq_linear(mat, data, bounds).x
cxs = model[:nx]
cys = model[nx:nx+ny]
vlimits_x = num.zeros((nx, 2))
for ix in range(nx):
u = wxs[ix] / cxs[ix]
vmin, vmax = vxs[ix]
udata = vmax - vmin
eps = 1e-7 * u
assert udata <= u + eps
vlimits_x[ix, 0] = (vmin + vmax) / 2.0 - u / 2.0
vlimits_x[ix, 1] = (vmin + vmax) / 2.0 + u / 2.0
vlimits_y = num.zeros((ny, 2))
for iy in range(ny):
u = wys[iy] / cys[iy]
vmin, vmax = vys[iy]
udata = vmax - vmin
eps = 1e-7 * u
assert udata <= u + eps
vlimits_y[iy, 0] = (vmin + vmax) / 2.0 - u / 2.0
vlimits_y[iy, 1] = (vmin + vmax) / 2.0 + u / 2.0
def check_aspect(a, awant, eps=1e-2):
if abs(1.0 - (a/awant)) > eps:
logger.error(
'Unable to comply with requested aspect ratio '
'(wanted: %g, achieved: %g)' % (awant, a))
for ix1, ix2, aspect in aspects_xx:
check_aspect(cxs[ix2] / cxs[ix1], aspect)
for iy1, iy2, aspect in aspects_yy:
check_aspect(cys[iy2] / cys[iy1], aspect)
for ix, iy, aspect in aspects_xy:
check_aspect(cys[iy] / cxs[ix], aspect)
return (vlimits_x, vlimits_y), (wxs, wys)
def solve_layout_iterative(size, shape, limits, aspects, niterations=3):
sx, sy = size
nx, ny = shape
vxs, vys = limits
uxs = vxs[:, 1] - vxs[:, 0]
uys = vys[:, 1] - vys[:, 0]
aspects_xx, aspects_yy, aspects_xy = aspects
fracs_x, fracs_y = num.ones(nx), num.ones(ny)
for i in range(niterations):
(vlimits_x, vlimits_y), (wxs, wys) = solve_layout_fixed_panels(
size, shape, limits, aspects, (fracs_x, fracs_y))
uxs_view = vlimits_x[:, 1] - vlimits_x[:, 0]
uys_view = vlimits_y[:, 1] - vlimits_y[:, 0]
wxs_used = wxs * uxs / uxs_view
wys_used = wys * uys / uys_view
# wxs_wasted = wxs * (1.0 - uxs / uxs_view)
# wys_wasted = wys * (1.0 - uys / uys_view)
fracs_x = wxs_used
fracs_y = wys_used
return (vlimits_x, vlimits_y), (wxs, wys)
class PlotError(Exception):
pass
class NotEnoughSpace(PlotError):
pass
[docs]class PlotConfig(Object):
'''
Configuration for :py:class:`Plot`.
'''
font_size = Float.T(default=9.0)
size_cm = Tuple.T(
2, Float.T(), default=(20., 20.))
margins_em = Tuple.T(
4, Float.T(), default=(8., 6., 8., 6.))
separator_em = Float.T(default=1.5)
colorbar_width_em = Float.T(default=2.0)
label_offset_em = Tuple.T(
2, Float.T(), default=(2., 2.))
tick_label_offset_em = Tuple.T(
2, Float.T(), default=(0.5, 0.5))
@property
def size_inch(self):
return self.size_cm[0]/inch, self.size_cm[1]/inch
[docs]class Plot(object):
'''
Matplotlib plotting with some fancy extras.
- Absolute sized figure margins, also for interactive plots.
- Improved label placement for grids of axes.
- Improved shared axis'es across multiple axes, e.g. for cross section
plots.
- Fixed aspect plotting across multiple axis'es on separate axes.
- Automatic subplot sizing based on aspect and data limit constraints.
- Serializable plot configuration.
'''
def __init__(
self, x_dims=['x'], y_dims=['y'], z_dims=[], config=None,
fig=None, call_mpl_init=True):
if config is None:
config = PlotConfig()
self._shape = len(x_dims), len(y_dims)
dims = []
for dim in x_dims + y_dims + z_dims:
dim = dim.lstrip('-')
if dim not in dims:
dims.append(dim)
self.config = config
self._disconnect_data = []
self._width = self._height = self._pixels = None
if call_mpl_init:
self._plt = plot.mpl_init(self.config.font_size)
if fig is None:
fig = self._plt.figure(
figsize=self.config.size_inch, FigureClass=SmartplotFigure)
else:
assert isinstance(fig, SmartplotFigure)
fig.set_smartplot(self)
self._fig = fig
self._colorbar_width = 0.0
self._colorbar_height = 0.0
self._colorbar_axes = []
self._dims = dims
self._dim_index = self._dims.index
self._ndims = len(dims)
self._labels = {}
self._aspects = {}
self.setup_axes()
self._view_limits = num.zeros((self._ndims, 2))
self._view_limits[:, :] = num.nan
self._last_mpl_view_limits = None
self._x_dims = [dim.lstrip('-') for dim in x_dims]
self._x_dims_invert = [dim.startswith('-') for dim in x_dims]
self._y_dims = [dim.lstrip('-') for dim in y_dims]
self._y_dims_invert = [dim.startswith('-') for dim in y_dims]
self._z_dims = [dim.lstrip('-') for dim in z_dims]
self._z_dims_invert = [dim.startswith('-') for dim in z_dims]
self._mappables = {}
self._updating_layout = False
self._need_update_layout = True
self._update_geometry()
for axes in self.axes_list:
fig.add_axes(axes)
self._connect(axes, 'xlim_changed', self.lim_changed_handler)
self._connect(axes, 'ylim_changed', self.lim_changed_handler)
self._cid_resize = fig.canvas.mpl_connect(
'resize_event', self.resize_handler)
try:
self._connect(fig, 'dpi_changed', self.dpi_changed_handler)
except ValueError:
# 'dpi_changed' event has been removed in MPL 3.8.
# canvas 'resize_event' may be sufficient but needs to be checked.
# https://matplotlib.org/stable/api/prev_api_changes/api_changes_3.8.0.html#text-get-rotation
pass
self._lim_changed_depth = 0
def reset_size(self):
self._fig.set_size_inches(self.config.size_inch)
def axes(self, ix, iy):
if not (isinstance(ix, int) and isinstance(iy, int)):
ix = self._x_dims.index(ix)
iy = self._y_dims.index(iy)
return self._axes[iy][ix]
def set_color_dim(self, mappable, dim):
assert dim in self._dims
self._mappables[mappable] = dim
def set_aspect(self, ydim, xdim, aspect=1.0):
self._aspects[ydim, xdim] = aspect
@property
def dims(self):
return self._dims
@property
def fig(self):
return self._fig
@property
def axes_list(self):
axes = []
for row in self._axes:
axes.extend(row)
return axes
@property
def axes_bottom_list(self):
return self._axes[0]
@property
def axes_left_list(self):
return [row[0] for row in self._axes]
def setup_axes(self):
rect = [0., 0., 1., 1.]
nx, ny = self._shape
axes = []
for iy in range(ny):
axes.append([])
for ix in range(nx):
axes[-1].append(SmartplotAxes(self.fig, rect))
self._axes = axes
for _, _, axes_ in self.iaxes():
axes_.set_autoscale_on(False)
def _connect(self, obj, sig, handler):
cid = get_callbacks(obj).connect(sig, handler)
self._disconnect_data.append((obj, cid))
def _disconnect_all(self):
for obj, cid in self._disconnect_data:
get_callbacks(obj).disconnect(cid)
self._fig.canvas.mpl_disconnect(self._cid_resize)
def dpi_changed_handler(self, fig):
if self._updating_layout:
return
self._update_geometry()
def resize_handler(self, event):
if self._updating_layout:
return
self._update_geometry()
def lim_changed_handler(self, axes):
if self._updating_layout:
return
current = self._get_mpl_view_limits()
last = self._last_mpl_view_limits
if last is None:
return
for iy, ix, axes in self.iaxes():
acurrent = current[iy][ix]
alast = last[iy][ix]
if acurrent[0] != alast[0]:
xdim = self._x_dims[ix]
logger.debug(
'X limits have been changed interactively in subplot '
'(%i, %i)' % (ix, iy))
self.set_lim(xdim, *sorted(acurrent[0]))
if acurrent[1] != alast[1]:
ydim = self._y_dims[iy]
logger.debug(
'Y limits have been changed interactively in subplot '
'(%i, %i)' % (ix, iy))
self.set_lim(ydim, *sorted(acurrent[1]))
self.need_update_layout()
def _update_geometry(self):
w, h = self._fig.canvas.get_width_height()
dp = self.get_device_pixel_ratio()
p = self.get_pixels_factor() * dp
if (self._width, self._height, self._pixels) != (w, h, p, dp):
logger.debug(
'New figure size: %g x %g, '
'logical-pixel/point: %g, physical-pixel/logical-pixel: %g' % (
w, h, p, dp))
self._width = w # logical pixel
self._height = h # logical pixel
self._pixels = p # logical pixel / point
self._device_pixel_ratio = dp # physical / logical
self.need_update_layout()
@property
def margins(self):
return tuple(
x * self.config.font_size / self._pixels
for x in self.config.margins_em)
@property
def separator(self):
return self.config.separator_em * self.config.font_size / self._pixels
def rect_to_figure_coords(self, rect):
left, bottom, width, height = rect
return (
left / self._width,
bottom / self._height,
width / self._width,
height / self._height)
def point_to_axes_coords(self, axes, point):
x, y = point
aleft, abottom, awidth, aheight = axes.get_position().bounds
x_fig = x / self._width
y_fig = y / self._height
x_axes = (x_fig - aleft) / awidth
y_axes = (y_fig - abottom) / aheight
return (x_axes, y_axes)
def get_pixels_factor(self):
try:
r = self._fig.canvas.get_renderer()
return 1.0 / r.points_to_pixels(1.0)
except AttributeError:
return 1.0
def get_device_pixel_ratio(self):
try:
return self._fig.canvas.device_pixel_ratio
except AttributeError:
return 1.0
def make_limits(self, lims):
a = plot.AutoScaler(space=0.05)
return a.make_scale(lims)[:2]
def iaxes(self):
for iy, row in enumerate(self._axes):
for ix, axes in enumerate(row):
yield iy, ix, axes
def get_data_limits(self):
dim_to_values = defaultdict(list)
for iy, ix, axes in self.iaxes():
dim_to_values[self._y_dims[iy]].extend(
axes.get_yaxis().get_data_interval())
dim_to_values[self._x_dims[ix]].extend(
axes.get_xaxis().get_data_interval())
for mappable, dim in self._mappables.items():
dim_to_values[dim].extend(mappable.get_clim())
lims = num.zeros((self._ndims, 2))
for idim in range(self._ndims):
dim = self._dims[idim]
if dim in dim_to_values:
vs = num.array(
dim_to_values[self._dims[idim]], dtype=float)
vs = vs[num.isfinite(vs)]
if vs.size > 0:
lims[idim, :] = num.min(vs), num.max(vs)
else:
lims[idim, :] = num.nan, num.nan
else:
lims[idim, :] = num.nan, num.nan
lims[num.logical_not(num.isfinite(lims))] = 0.0
return lims
def set_lim(self, dim, vmin, vmax):
assert vmin <= vmax
self._view_limits[self._dim_index(dim), :] = vmin, vmax
def _get_mpl_view_limits(self):
vl = []
for row in self._axes:
vl_row = []
for axes in row:
vl_row.append((
axes.get_xaxis().get_view_interval().tolist(),
axes.get_yaxis().get_view_interval().tolist()))
vl.append(vl_row)
return vl
def _remember_mpl_view_limits(self):
self._last_mpl_view_limits = self._get_mpl_view_limits()
def window_xmin(self, x):
return window_min(
self._shape[0], self._width,
self.margins[0], self.margins[2] + self._colorbar_width,
self.separator, x)
def window_xmax(self, x):
return window_max(
self._shape[0], self._width,
self.margins[0], self.margins[2] + self._colorbar_width,
self.separator, x)
def window_ymin(self, y):
return window_min(
self._shape[1], self._height,
self.margins[3] + self._colorbar_height, self.margins[1],
self.separator, y)
def window_ymax(self, y):
return window_max(
self._shape[1], self._height,
self.margins[3] + self._colorbar_height, self.margins[1],
self.separator, y)
def need_update_layout(self):
self._need_update_layout = True
def _update_layout(self):
assert not self._updating_layout
if not self._need_update_layout:
return
self._updating_layout = True
try:
data_limits = self.get_data_limits()
limits = num.zeros((self._ndims, 2))
for idim in range(self._ndims):
limits[idim, :] = self.make_limits(data_limits[idim, :])
mask = num.isfinite(self._view_limits)
limits[mask] = self._view_limits[mask]
# deltas = limits[:, 1] - limits[:, 0]
# data_w = deltas[0]
# data_h = deltas[1]
ml, mt, mr, mb = self.margins
mr += self._colorbar_width
mb += self._colorbar_height
sw = sh = self.separator
nx, ny = self._shape
# data_r = data_h / data_w
em = self.config.font_size
em_pixels = em / self._pixels
w = self._width
h = self._height
fig_w_avail = w - mr - ml - (nx-1) * sw
fig_h_avail = h - mt - mb - (ny-1) * sh
if fig_w_avail <= 0.0 or fig_h_avail <= 0.0:
raise NotEnoughSpace()
x_limits = num.zeros((nx, 2))
for ix, xdim in enumerate(self._x_dims):
x_limits[ix, :] = limits[self._dim_index(xdim)]
y_limits = num.zeros((ny, 2))
for iy, ydim in enumerate(self._y_dims):
y_limits[iy, :] = limits[self._dim_index(ydim)]
def get_aspect(dim1, dim2):
if (dim2, dim1) in self._aspects:
return 1.0/self._aspects[dim2, dim1]
return self._aspects.get((dim1, dim2), None)
aspects_xx = []
for ix1, xdim1 in enumerate(self._x_dims):
for ix2, xdim2 in enumerate(self._x_dims):
aspect = get_aspect(xdim2, xdim1)
if aspect:
aspects_xx.append((ix1, ix2, aspect))
aspects_yy = []
for iy1, ydim1 in enumerate(self._y_dims):
for iy2, ydim2 in enumerate(self._y_dims):
aspect = get_aspect(ydim2, ydim1)
if aspect:
aspects_yy.append((iy1, iy2, aspect))
aspects_xy = []
for iy, ix, axes in self.iaxes():
xdim = self._x_dims[ix]
ydim = self._y_dims[iy]
aspect = get_aspect(ydim, xdim)
if aspect:
aspects_xy.append((ix, iy, aspect))
(x_limits, y_limits), (aws, ahs) = solve_layout_iterative(
size=(fig_w_avail, fig_h_avail),
shape=(nx, ny),
limits=(x_limits, y_limits),
aspects=(
aspects_xx,
aspects_yy,
aspects_xy))
for iy, ix, axes in self.iaxes():
rect = [
ml + num.sum(aws[:ix])+(ix*sw),
mb + num.sum(ahs[:iy])+(iy*sh),
aws[ix], ahs[iy]]
axes.set_position(
self.rect_to_figure_coords(rect), which='both')
self.set_label_coords(
axes, 'x', [
wcenter(rect),
self.config.label_offset_em[0]*em_pixels
+ self._colorbar_height])
self.set_label_coords(
axes, 'y', [
self.config.label_offset_em[1]*em_pixels,
hcenter(rect)])
axes.get_xaxis().set_tick_params(
bottom=(iy == 0), top=(iy == ny-1),
labelbottom=(iy == 0), labeltop=False)
axes.get_yaxis().set_tick_params(
left=(ix == 0), right=(ix == nx-1),
labelleft=(ix == 0), labelright=False)
istride = -1 if self._x_dims_invert[ix] else 1
axes.set_xlim(*x_limits[ix, ::istride])
istride = -1 if self._y_dims_invert[iy] else 1
axes.set_ylim(*y_limits[iy, ::istride])
axes.tick_params(
axis='x',
pad=self.config.tick_label_offset_em[0]*em)
axes.tick_params(
axis='y',
pad=self.config.tick_label_offset_em[0]*em)
self._remember_mpl_view_limits()
for mappable, dim in self._mappables.items():
mappable.set_clim(*limits[self._dim_index(dim)])
# scaler = plot.AutoScaler()
# aspect tick incs same
#
# inc = scaler.make_scale(
# [0, min(data_expanded_w, data_expanded_h)],
# override_mode='off')[2]
#
# for axes in self.axes_list:
# axes.set_xlim(*limits[0, :])
# axes.set_ylim(*limits[1, :])
#
# tl = MultipleLocator(inc)
# axes.get_xaxis().set_major_locator(tl)
# tl = MultipleLocator(inc)
# axes.get_yaxis().set_major_locator(tl)
for axes, orientation, position in self._colorbar_axes:
if orientation == 'horizontal':
xmin = self.window_xmin(position[0])
xmax = self.window_xmax(position[1])
ymin = mb - self._colorbar_height
ymax = mb - self._colorbar_height \
+ self.config.colorbar_width_em * em_pixels
else:
ymin = self.window_ymin(position[0])
ymax = self.window_ymax(position[1])
xmin = w - mr + 2 * sw
xmax = w - mr + 2 * sw \
+ self.config.colorbar_width_em * em_pixels
rect = [xmin, ymin, xmax-xmin, ymax-ymin]
axes.set_position(
self.rect_to_figure_coords(rect), which='both')
for ix, axes in enumerate(self.axes_bottom_list):
dim = self._x_dims[ix]
s = self._labels.get(dim, dim)
axes.set_xlabel(s)
for iy, axes in enumerate(self.axes_left_list):
dim = self._y_dims[iy]
s = self._labels.get(dim, dim)
axes.set_ylabel(s)
finally:
self._updating_layout = False
def set_label_coords(self, axes, which, point):
axis = axes.get_xaxis() if which == 'x' else axes.get_yaxis()
axis.set_label_coords(*self.point_to_axes_coords(axes, point))
def plot(self, points, *args, **kwargs):
for iy, row in enumerate(self._axes):
y = points[:, self._dim_index(self._y_dims[iy])]
for ix, axes in enumerate(row):
x = points[:, self._dim_index(self._x_dims[ix])]
axes.plot(x, y, *args, **kwargs)
def close(self):
self._disconnect_all()
self._plt.close(self._fig)
def show(self):
self._plt.show()
self.reset_size()
def set_label(self, dim, s):
# just set attribute, handle in update_layout
self._labels[dim] = s
def colorbar(
self, dim,
orientation='vertical',
position=None):
if dim not in self._dims:
raise PlotError(
'dimension "%s" is not defined')
if orientation not in ('vertical', 'horizontal'):
raise PlotError(
'orientation must be "vertical" or "horizontal"')
mappable = None
for mappable_, dim_ in self._mappables.items():
if dim_ == dim:
if mappable is None:
mappable = mappable_
else:
mappable_.set_cmap(mappable.get_cmap())
if mappable is None:
raise PlotError(
'no mappable registered for dimension "%s"' % dim)
if position is None:
if orientation == 'vertical':
position = (0, self._shape[1])
else:
position = (0, self._shape[0])
em_pixels = self.config.font_size / self._pixels
if orientation == 'vertical':
self._colorbar_width = self.config.colorbar_width_em*em_pixels + \
self.separator * 2.0
else:
self._colorbar_height = self.config.colorbar_width_em*em_pixels + \
self.separator + self.margins[3]
axes = SmartplotAxes(self.fig, [0., 0., 1., 1.])
self.fig.add_axes(axes)
self._colorbar_axes.append(
(axes, orientation, position))
self.need_update_layout()
# axes.plot([1], [1])
label = self._labels.get(dim, dim)
return colorbar.Colorbar(
axes, mappable, orientation=orientation, label=label)
def __call__(self, *args):
return self.axes(*args)
if __name__ == '__main__':
import sys
from pyrocko import util
logging.getLogger('matplotlib').setLevel(logging.WARNING)
util.setup_logging('smartplot', 'debug')
iplots = [int(x) for x in sys.argv[1:]]
if 0 in iplots:
p = Plot(['x'], ['y'])
n = 100
x = num.arange(n) * 2.0
y = num.random.normal(size=n)
p(0, 0).plot(x, y, 'o')
p.show()
if 1 in iplots:
p = Plot(['x', 'x'], ['y'])
n = 100
x = num.arange(n) * 2.0
y = num.random.normal(size=n)
p(0, 0).plot(x, y, 'o')
x = num.arange(n) * 2.0
y = num.random.normal(size=n)
p(1, 0).plot(x, y, 'o')
p.show()
if 11 in iplots:
p = Plot(['x'], ['y'])
p.set_aspect('y', 'x', 2.0)
n = 100
xy = num.random.normal(size=(n, 2))
p(0, 0).plot(xy[:, 0], xy[:, 1], 'o')
p.show()
if 12 in iplots:
p = Plot(['x', 'x2'], ['y'])
p.set_aspect('x2', 'x', 2.0)
p.set_aspect('y', 'x', 2.0)
n = 100
xy = num.random.normal(size=(n, 2))
p(0, 0).plot(xy[:, 0], xy[:, 1], 'o')
p(1, 0).plot(xy[:, 0], xy[:, 1], 'o')
p.show()
if 13 in iplots:
p = Plot(['x'], ['y', 'y2'])
p.set_aspect('y2', 'y', 2.0)
p.set_aspect('y', 'x', 2.0)
n = 100
xy = num.random.normal(size=(n, 2))
p(0, 0).plot(xy[:, 0], xy[:, 1], 'o')
p(0, 1).plot(xy[:, 0], xy[:, 1], 'o')
p.show()
if 2 in iplots:
p = Plot(['easting', 'depth'], ['northing', 'depth'])
n = 100
ned = num.random.normal(size=(n, 3))
p(0, 0).plot(ned[:, 1], ned[:, 0], 'o')
p(1, 0).plot(ned[:, 2], ned[:, 0], 'o')
p(0, 1).plot(ned[:, 1], ned[:, 2], 'o')
p.show()
if 3 in iplots:
p = Plot(['easting', 'depth'], ['-depth', 'northing'])
p.set_aspect('easting', 'northing', 1.0)
p.set_aspect('easting', 'depth', 0.5)
p.set_aspect('northing', 'depth', 0.5)
n = 100
ned = num.random.normal(size=(n, 3))
ned[:, 2] *= 0.25
p(0, 1).plot(ned[:, 1], ned[:, 0], 'o', color='black')
p(0, 0).plot(ned[:, 1], ned[:, 2], 'o')
p(1, 1).plot(ned[:, 2], ned[:, 0], 'o')
p(1, 0).set_visible(False)
p.set_lim('depth', 0., 0.2)
p.show()
if 5 in iplots:
p = Plot(['time'], ['northing', 'easting', '-depth'], ['depth'])
n = 100
t = num.arange(n)
xyz = num.random.normal(size=(n, 4))
xyz[:, 0] *= 0.5
smap = make_smap('summer')
p(0, 0).scatter(
t, xyz[:, 0], c=xyz[:, 2], cmap=smap.cmap, norm=smap.norm)
p(0, 1).scatter(
t, xyz[:, 1], c=xyz[:, 2], cmap=smap.cmap, norm=smap.norm)
p(0, 2).scatter(
t, xyz[:, 2], c=xyz[:, 2], cmap=smap.cmap, norm=smap.norm)
p.set_lim('depth', -1., 1.)
p.set_color_dim(smap, 'depth')
p.set_aspect('northing', 'easting', 1.0)
p.set_aspect('northing', 'depth', 1.0)
p.set_label('time', 'Time [s]')
p.set_label('depth', 'Depth [km]')
p.set_label('easting', 'Easting [km]')
p.set_label('northing', 'Northing [km]')
p.colorbar('depth')
p.show()
if 6 in iplots:
km = 1000.
p = Plot(
['easting'], ['northing']*3, ['displacement'])
nn, ne = 50, 40
n = num.linspace(-5*km, 5*km, nn)
e = num.linspace(-10*km, 10*km, ne)
displacement = num.zeros((nn, ne, 3))
g = num.exp(
-(n[:, num.newaxis]**2 + e[num.newaxis, :]**2) / (5*km)**2)
displacement[:, :, 0] = g
displacement[:, :, 1] = g * 0.5
displacement[:, :, 2] = -g * 0.2
for icomp in (0, 1, 2):
c = p(0, icomp).pcolormesh(
e/km, n/km, displacement[:, :, icomp], shading='gouraud')
p.set_color_dim(c, 'displacement')
p.colorbar('displacement')
p.set_lim('displacement', -1.0, 1.0)
p.set_label('easting', 'Easting [km]')
p.set_label('northing', 'Northing [km]')
p.set_aspect('northing', 'easting')
p.set_lim('northing', -5.0, 5.0)
p.set_lim('easting', -3.0, 3.0)
p.show()
