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#
# (C) Copyright 2020- ECMWF.
#
# This software is licensed under the terms of the Apache Licence Version 2.0
# which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
#
# In applying this licence, ECMWF does not waive the privileges and immunities
# granted to it by virtue of its status as an intergovernmental organisation
# nor does it submit to any jurisdiction.
#
import logging
import math
import metview as mv
LOG = logging.getLogger(__name__)
class Layout:
GRID_DEF = {
1: [1, 1],
2: [2, 1],
3: [3, 1],
4: [2, 2],
8: [3, 3],
9: [3, 3],
10: [4, 3],
}
def _grid_row_col(self, page_num=0, rows=None, columns=None, layout=None):
if rows is None and columns is None:
if layout is not None and layout != "":
v = layout.split("x")
if len(v) == 2:
try:
r = int(v[0])
c = int(v[1])
# LOG.debug(f"r{r} c={c}")
except:
raise Exception(f"Invalid layout specification ({layout}")
if page_num > 0 and r * c < page_num:
raise Exception(
f"Layout specification={layout} does not match number of scenes={page_num}"
)
else:
if page_num in self.GRID_DEF:
r, c = self.GRID_DEF[page_num]
elif page_num >= 1:
r, c = self._compute_row_col(page_num)
else:
raise Exception(f"Cannot create a layout for {page_num} pages!")
return r, c
def build_grid(self, page_num=0, rows=None, columns=None, layout=None, view=None):
r, c = self._grid_row_col(
page_num=page_num, rows=rows, columns=columns, layout=layout
)
if isinstance(view, mv.style.GeoView):
v = view.to_request()
else:
v = view
return self._build_grid(rows=r, columns=c, view=v)
def _build_grid(self, rows=1, columns=1, view=None):
assert rows >= 1 and columns >= 1
if rows == 1 and columns == 1:
return mv.plot_superpage(pages=[mv.plot_page(view=view)])
else:
return mv.plot_superpage(
pages=mv.mvl_regular_layout(
view, columns, rows, 1, 1, [5, 100, 15, 100]
)
)
def _compute_row_col(self, page_num):
# has been checked for 100
r = int(math.sqrt(page_num))
c = r
if c * r < page_num:
if (page_num - c * r) % c == 0:
c += (page_num - c * r) // c
else:
c += 1 + (page_num - c * r) // c
return (r, c)
def build_diff(self, view):
page_1 = mv.plot_page(top=5, bottom=50, left=25, right=75, view=view)
page_2 = mv.plot_page(top=52, bottom=97, right=50, view=view)
page_3 = mv.plot_page(top=52, bottom=97, left=50, right=100, view=view)
return mv.plot_superpage(pages=[page_1, page_2, page_3])
def build_xs(self, line, map_view):
xs_view = mv.mxsectview(
line=line,
bottom_level=1000,
top_level=150
# wind_perpendicular : "off",
# wind_parallel :"on",
# wind_intensity :"off"
)
page_1 = mv.plot_page(top=35 if map_view is not None else 5, view=xs_view)
if map_view is not None:
page = mv.plot_page(top=5, bottom=35, view=map_view)
return mv.plot_superpage(pages=[page_1, page])
else:
return mv.plot_superpage(pages=[page_1])
def build_xs_avg(
self,
area,
direction,
bottom_level,
top_level,
vertical_scaling,
axis_label_height=0.4,
):
axis = mv.maxis(axis_tick_label_height=axis_label_height)
return mv.maverageview(
area=area,
direction=direction,
bottom_level=bottom_level,
top_level=top_level,
vertical_scaling=vertical_scaling,
horizontal_axis=axis,
vertical_axis=axis,
)
def build_stamp(self, page_num=0, layout="", view=None):
if True:
coast_empty = mv.mcoast(
map_coastline="off", map_grid="off", map_label="off"
)
empty_view = mv.geoview(
page_frame="off",
subpage_frame="off",
coastlines=coast_empty,
subpage_x_position=40,
subpage_x_length=10,
subpage_y_length=10,
)
title_page = mv.plot_page(
top=0, bottom=5, left=30, right=70, view=empty_view
)
r, c = self._grid_row_col(page_num=page_num, layout=layout)
pages = mv.mvl_regular_layout(view, c, r, 1, 1, [5, 100, 15, 100])
pages.append(title_page)
return mv.plot_superpage(pages=pages)
# g = self.build_grid(page_num=page_num, layout=layout, view=view)
# return g
def build_rmse(self, xmin, xmax, ymin, ymax, xtick, ytick, xtitle, ytitle):
horizontal_axis = mv.maxis(
axis_type="date",
axis_orientation="horizontal",
axis_position="bottom",
# axis_title : 'on',
# axis_title_height : 0.4,
axis_grid="on",
axis_grid_colour="grey",
# axis_title_text : xtitle,
# axis_title_quality : 'high',
axis_tick_interval=xtick,
axis_tick_label_height=0.6,
axis_date_type="days",
axis_years_label="off",
axis_months_label="off",
axis_days_label_height="0.3",
)
vertical_axis = mv.maxis(
axis_orientation="vertical",
axis_position="left",
axis_grid="on",
axis_grid_colour="grey",
axis_title="on",
axis_title_height=0.4,
axis_title_text=ytitle,
# axis_title_quality : 'high',
axis_tick_interval=ytick,
axis_tick_label_height=0.3,
)
cview = mv.cartesianview(
page_frame="off",
x_axis_type="date",
y_axis_type="regular",
y_automatic="off",
x_automatic="off",
y_min=ymin,
y_max=ymax,
x_date_min=xmin,
x_date_max=xmax,
horizontal_axis=horizontal_axis,
vertical_axis=vertical_axis,
)
return cview
def build_xy(self, xmin, xmax, ymin, ymax, xtick, ytick, xtitle, ytitle):
horizontal_axis = mv.maxis(
axis_orientation="horizontal",
axis_position="bottom",
axis_title="on",
axis_title_height=0.5,
axis_title_text=xtitle,
# axis_title : 'on',
# axis_title_height : 0.4,
axis_grid="on",
axis_grid_colour="grey",
# axis_title_text : xtitle,
# axis_title_quality : 'high',
axis_tick_interval=xtick,
axis_tick_label_height=0.6,
axis_date_type="days",
axis_years_label="off",
axis_months_label="off",
axis_days_label_height="0.3",
)
vertical_axis = mv.maxis(
axis_orientation="vertical",
axis_position="left",
axis_grid="on",
axis_grid_colour="grey",
axis_title="on",
axis_title_height=0.6,
axis_title_text=ytitle,
# axis_title_quality : 'high',
axis_tick_interval=ytick,
axis_tick_label_height=0.3,
)
cview = mv.cartesianview(
page_frame="off",
x_axis_type="regular",
y_axis_type="regular",
y_automatic="off",
x_automatic="off",
y_min=ymin,
y_max=ymax,
x_min=xmin,
x_max=xmax,
horizontal_axis=horizontal_axis,
vertical_axis=vertical_axis,
)
return cview
@staticmethod
def compute_axis_range(v_min, v_max):
count = 15
d = math.fabs(v_max - v_min)
if d > 0:
b = d / count
n = math.floor(math.log10(b))
v = b / math.pow(10, n)
# print("d={} b={} n={} v={}".format(d,b,n,v))
if v <= 1:
v = 1
elif v <= 2:
v = 2
elif v <= 5:
v = 5
else:
v = 10
bin_size = v * math.pow(10, n)
bin_start = math.ceil(v_min / bin_size) * bin_size
if bin_start >= v_min and math.fabs(bin_start - v_min) < bin_size / 10000:
bin_start = bin_start - bin_size / 100000
av = v_min
else:
bin_start = bin_start - bin_size
av = bin_start
max_iter = 100
act_iter = 0
while av < v_max:
av += bin_size
act_iter += 1
if act_iter > max_iter:
return (0, v_min, v_max)
bin_end = av # + bin_size / 100000
return bin_size, bin_start, bin_end
else:
return (0, v_min, v_max)
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