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authorshumkovnd <shumkovnd@yandex-team.com>2023-11-10 14:39:34 +0300
committershumkovnd <shumkovnd@yandex-team.com>2023-11-10 16:42:24 +0300
commit77eb2d3fdcec5c978c64e025ced2764c57c00285 (patch)
treec51edb0748ca8d4a08d7c7323312c27ba1a8b79a /contrib/python/matplotlib/py3/mpl_toolkits/axisartist/angle_helper.py
parentdd6d20cadb65582270ac23f4b3b14ae189704b9d (diff)
downloadydb-77eb2d3fdcec5c978c64e025ced2764c57c00285.tar.gz
KIKIMR-19287: add task_stats_drawing script
Diffstat (limited to 'contrib/python/matplotlib/py3/mpl_toolkits/axisartist/angle_helper.py')
-rw-r--r--contrib/python/matplotlib/py3/mpl_toolkits/axisartist/angle_helper.py394
1 files changed, 394 insertions, 0 deletions
diff --git a/contrib/python/matplotlib/py3/mpl_toolkits/axisartist/angle_helper.py b/contrib/python/matplotlib/py3/mpl_toolkits/axisartist/angle_helper.py
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+++ b/contrib/python/matplotlib/py3/mpl_toolkits/axisartist/angle_helper.py
@@ -0,0 +1,394 @@
+import numpy as np
+import math
+
+from mpl_toolkits.axisartist.grid_finder import ExtremeFinderSimple
+
+
+def select_step_degree(dv):
+
+ degree_limits_ = [1.5, 3, 7, 13, 20, 40, 70, 120, 270, 520]
+ degree_steps_ = [1, 2, 5, 10, 15, 30, 45, 90, 180, 360]
+ degree_factors = [1.] * len(degree_steps_)
+
+ minsec_limits_ = [1.5, 2.5, 3.5, 8, 11, 18, 25, 45]
+ minsec_steps_ = [1, 2, 3, 5, 10, 15, 20, 30]
+
+ minute_limits_ = np.array(minsec_limits_) / 60
+ minute_factors = [60.] * len(minute_limits_)
+
+ second_limits_ = np.array(minsec_limits_) / 3600
+ second_factors = [3600.] * len(second_limits_)
+
+ degree_limits = [*second_limits_, *minute_limits_, *degree_limits_]
+ degree_steps = [*minsec_steps_, *minsec_steps_, *degree_steps_]
+ degree_factors = [*second_factors, *minute_factors, *degree_factors]
+
+ n = np.searchsorted(degree_limits, dv)
+ step = degree_steps[n]
+ factor = degree_factors[n]
+
+ return step, factor
+
+
+def select_step_hour(dv):
+
+ hour_limits_ = [1.5, 2.5, 3.5, 5, 7, 10, 15, 21, 36]
+ hour_steps_ = [1, 2, 3, 4, 6, 8, 12, 18, 24]
+ hour_factors = [1.] * len(hour_steps_)
+
+ minsec_limits_ = [1.5, 2.5, 3.5, 4.5, 5.5, 8, 11, 14, 18, 25, 45]
+ minsec_steps_ = [1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30]
+
+ minute_limits_ = np.array(minsec_limits_) / 60
+ minute_factors = [60.] * len(minute_limits_)
+
+ second_limits_ = np.array(minsec_limits_) / 3600
+ second_factors = [3600.] * len(second_limits_)
+
+ hour_limits = [*second_limits_, *minute_limits_, *hour_limits_]
+ hour_steps = [*minsec_steps_, *minsec_steps_, *hour_steps_]
+ hour_factors = [*second_factors, *minute_factors, *hour_factors]
+
+ n = np.searchsorted(hour_limits, dv)
+ step = hour_steps[n]
+ factor = hour_factors[n]
+
+ return step, factor
+
+
+def select_step_sub(dv):
+
+ # subarcsec or degree
+ tmp = 10.**(int(math.log10(dv))-1.)
+
+ factor = 1./tmp
+
+ if 1.5*tmp >= dv:
+ step = 1
+ elif 3.*tmp >= dv:
+ step = 2
+ elif 7.*tmp >= dv:
+ step = 5
+ else:
+ step = 1
+ factor = 0.1*factor
+
+ return step, factor
+
+
+def select_step(v1, v2, nv, hour=False, include_last=True,
+ threshold_factor=3600.):
+
+ if v1 > v2:
+ v1, v2 = v2, v1
+
+ dv = (v2 - v1) / nv
+
+ if hour:
+ _select_step = select_step_hour
+ cycle = 24.
+ else:
+ _select_step = select_step_degree
+ cycle = 360.
+
+ # for degree
+ if dv > 1 / threshold_factor:
+ step, factor = _select_step(dv)
+ else:
+ step, factor = select_step_sub(dv*threshold_factor)
+
+ factor = factor * threshold_factor
+
+ levs = np.arange(np.floor(v1 * factor / step),
+ np.ceil(v2 * factor / step) + 0.5,
+ dtype=int) * step
+
+ # n : number of valid levels. If there is a cycle, e.g., [0, 90, 180,
+ # 270, 360], the grid line needs to be extended from 0 to 360, so
+ # we need to return the whole array. However, the last level (360)
+ # needs to be ignored often. In this case, so we return n=4.
+
+ n = len(levs)
+
+ # we need to check the range of values
+ # for example, -90 to 90, 0 to 360,
+
+ if factor == 1. and levs[-1] >= levs[0] + cycle: # check for cycle
+ nv = int(cycle / step)
+ if include_last:
+ levs = levs[0] + np.arange(0, nv+1, 1) * step
+ else:
+ levs = levs[0] + np.arange(0, nv, 1) * step
+
+ n = len(levs)
+
+ return np.array(levs), n, factor
+
+
+def select_step24(v1, v2, nv, include_last=True, threshold_factor=3600):
+ v1, v2 = v1 / 15, v2 / 15
+ levs, n, factor = select_step(v1, v2, nv, hour=True,
+ include_last=include_last,
+ threshold_factor=threshold_factor)
+ return levs * 15, n, factor
+
+
+def select_step360(v1, v2, nv, include_last=True, threshold_factor=3600):
+ return select_step(v1, v2, nv, hour=False,
+ include_last=include_last,
+ threshold_factor=threshold_factor)
+
+
+class LocatorBase:
+ def __init__(self, nbins, include_last=True):
+ self.nbins = nbins
+ self._include_last = include_last
+
+ def set_params(self, nbins=None):
+ if nbins is not None:
+ self.nbins = int(nbins)
+
+
+class LocatorHMS(LocatorBase):
+ def __call__(self, v1, v2):
+ return select_step24(v1, v2, self.nbins, self._include_last)
+
+
+class LocatorHM(LocatorBase):
+ def __call__(self, v1, v2):
+ return select_step24(v1, v2, self.nbins, self._include_last,
+ threshold_factor=60)
+
+
+class LocatorH(LocatorBase):
+ def __call__(self, v1, v2):
+ return select_step24(v1, v2, self.nbins, self._include_last,
+ threshold_factor=1)
+
+
+class LocatorDMS(LocatorBase):
+ def __call__(self, v1, v2):
+ return select_step360(v1, v2, self.nbins, self._include_last)
+
+
+class LocatorDM(LocatorBase):
+ def __call__(self, v1, v2):
+ return select_step360(v1, v2, self.nbins, self._include_last,
+ threshold_factor=60)
+
+
+class LocatorD(LocatorBase):
+ def __call__(self, v1, v2):
+ return select_step360(v1, v2, self.nbins, self._include_last,
+ threshold_factor=1)
+
+
+class FormatterDMS:
+ deg_mark = r"^{\circ}"
+ min_mark = r"^{\prime}"
+ sec_mark = r"^{\prime\prime}"
+
+ fmt_d = "$%d" + deg_mark + "$"
+ fmt_ds = r"$%d.%s" + deg_mark + "$"
+
+ # %s for sign
+ fmt_d_m = r"$%s%d" + deg_mark + r"\,%02d" + min_mark + "$"
+ fmt_d_ms = r"$%s%d" + deg_mark + r"\,%02d.%s" + min_mark + "$"
+
+ fmt_d_m_partial = "$%s%d" + deg_mark + r"\,%02d" + min_mark + r"\,"
+ fmt_s_partial = "%02d" + sec_mark + "$"
+ fmt_ss_partial = "%02d.%s" + sec_mark + "$"
+
+ def _get_number_fraction(self, factor):
+ ## check for fractional numbers
+ number_fraction = None
+ # check for 60
+
+ for threshold in [1, 60, 3600]:
+ if factor <= threshold:
+ break
+
+ d = factor // threshold
+ int_log_d = int(np.floor(np.log10(d)))
+ if 10**int_log_d == d and d != 1:
+ number_fraction = int_log_d
+ factor = factor // 10**int_log_d
+ return factor, number_fraction
+
+ return factor, number_fraction
+
+ def __call__(self, direction, factor, values):
+ if len(values) == 0:
+ return []
+
+ ss = np.sign(values)
+ signs = ["-" if v < 0 else "" for v in values]
+
+ factor, number_fraction = self._get_number_fraction(factor)
+
+ values = np.abs(values)
+
+ if number_fraction is not None:
+ values, frac_part = divmod(values, 10 ** number_fraction)
+ frac_fmt = "%%0%dd" % (number_fraction,)
+ frac_str = [frac_fmt % (f1,) for f1 in frac_part]
+
+ if factor == 1:
+ if number_fraction is None:
+ return [self.fmt_d % (s * int(v),) for s, v in zip(ss, values)]
+ else:
+ return [self.fmt_ds % (s * int(v), f1)
+ for s, v, f1 in zip(ss, values, frac_str)]
+ elif factor == 60:
+ deg_part, min_part = divmod(values, 60)
+ if number_fraction is None:
+ return [self.fmt_d_m % (s1, d1, m1)
+ for s1, d1, m1 in zip(signs, deg_part, min_part)]
+ else:
+ return [self.fmt_d_ms % (s, d1, m1, f1)
+ for s, d1, m1, f1
+ in zip(signs, deg_part, min_part, frac_str)]
+
+ elif factor == 3600:
+ if ss[-1] == -1:
+ inverse_order = True
+ values = values[::-1]
+ signs = signs[::-1]
+ else:
+ inverse_order = False
+
+ l_hm_old = ""
+ r = []
+
+ deg_part, min_part_ = divmod(values, 3600)
+ min_part, sec_part = divmod(min_part_, 60)
+
+ if number_fraction is None:
+ sec_str = [self.fmt_s_partial % (s1,) for s1 in sec_part]
+ else:
+ sec_str = [self.fmt_ss_partial % (s1, f1)
+ for s1, f1 in zip(sec_part, frac_str)]
+
+ for s, d1, m1, s1 in zip(signs, deg_part, min_part, sec_str):
+ l_hm = self.fmt_d_m_partial % (s, d1, m1)
+ if l_hm != l_hm_old:
+ l_hm_old = l_hm
+ l = l_hm + s1
+ else:
+ l = "$" + s + s1
+ r.append(l)
+
+ if inverse_order:
+ return r[::-1]
+ else:
+ return r
+
+ else: # factor > 3600.
+ return [r"$%s^{\circ}$" % v for v in ss*values]
+
+
+class FormatterHMS(FormatterDMS):
+ deg_mark = r"^\mathrm{h}"
+ min_mark = r"^\mathrm{m}"
+ sec_mark = r"^\mathrm{s}"
+
+ fmt_d = "$%d" + deg_mark + "$"
+ fmt_ds = r"$%d.%s" + deg_mark + "$"
+
+ # %s for sign
+ fmt_d_m = r"$%s%d" + deg_mark + r"\,%02d" + min_mark+"$"
+ fmt_d_ms = r"$%s%d" + deg_mark + r"\,%02d.%s" + min_mark+"$"
+
+ fmt_d_m_partial = "$%s%d" + deg_mark + r"\,%02d" + min_mark + r"\,"
+ fmt_s_partial = "%02d" + sec_mark + "$"
+ fmt_ss_partial = "%02d.%s" + sec_mark + "$"
+
+ def __call__(self, direction, factor, values): # hour
+ return super().__call__(direction, factor, np.asarray(values) / 15)
+
+
+class ExtremeFinderCycle(ExtremeFinderSimple):
+ # docstring inherited
+
+ def __init__(self, nx, ny,
+ lon_cycle=360., lat_cycle=None,
+ lon_minmax=None, lat_minmax=(-90, 90)):
+ """
+ This subclass handles the case where one or both coordinates should be
+ taken modulo 360, or be restricted to not exceed a specific range.
+
+ Parameters
+ ----------
+ nx, ny : int
+ The number of samples in each direction.
+
+ lon_cycle, lat_cycle : 360 or None
+ If not None, values in the corresponding direction are taken modulo
+ *lon_cycle* or *lat_cycle*; in theory this can be any number but
+ the implementation actually assumes that it is 360 (if not None);
+ other values give nonsensical results.
+
+ This is done by "unwrapping" the transformed grid coordinates so
+ that jumps are less than a half-cycle; then normalizing the span to
+ no more than a full cycle.
+
+ For example, if values are in the union of the [0, 2] and
+ [358, 360] intervals (typically, angles measured modulo 360), the
+ values in the second interval are normalized to [-2, 0] instead so
+ that the values now cover [-2, 2]. If values are in a range of
+ [5, 1000], this gets normalized to [5, 365].
+
+ lon_minmax, lat_minmax : (float, float) or None
+ If not None, the computed bounding box is clipped to the given
+ range in the corresponding direction.
+ """
+ self.nx, self.ny = nx, ny
+ self.lon_cycle, self.lat_cycle = lon_cycle, lat_cycle
+ self.lon_minmax = lon_minmax
+ self.lat_minmax = lat_minmax
+
+ def __call__(self, transform_xy, x1, y1, x2, y2):
+ # docstring inherited
+ x, y = np.meshgrid(
+ np.linspace(x1, x2, self.nx), np.linspace(y1, y2, self.ny))
+ lon, lat = transform_xy(np.ravel(x), np.ravel(y))
+
+ # iron out jumps, but algorithm should be improved.
+ # This is just naive way of doing and my fail for some cases.
+ # Consider replacing this with numpy.unwrap
+ # We are ignoring invalid warnings. They are triggered when
+ # comparing arrays with NaNs using > We are already handling
+ # that correctly using np.nanmin and np.nanmax
+ with np.errstate(invalid='ignore'):
+ if self.lon_cycle is not None:
+ lon0 = np.nanmin(lon)
+ lon -= 360. * ((lon - lon0) > 180.)
+ if self.lat_cycle is not None:
+ lat0 = np.nanmin(lat)
+ lat -= 360. * ((lat - lat0) > 180.)
+
+ lon_min, lon_max = np.nanmin(lon), np.nanmax(lon)
+ lat_min, lat_max = np.nanmin(lat), np.nanmax(lat)
+
+ lon_min, lon_max, lat_min, lat_max = \
+ self._add_pad(lon_min, lon_max, lat_min, lat_max)
+
+ # check cycle
+ if self.lon_cycle:
+ lon_max = min(lon_max, lon_min + self.lon_cycle)
+ if self.lat_cycle:
+ lat_max = min(lat_max, lat_min + self.lat_cycle)
+
+ if self.lon_minmax is not None:
+ min0 = self.lon_minmax[0]
+ lon_min = max(min0, lon_min)
+ max0 = self.lon_minmax[1]
+ lon_max = min(max0, lon_max)
+
+ if self.lat_minmax is not None:
+ min0 = self.lat_minmax[0]
+ lat_min = max(min0, lat_min)
+ max0 = self.lat_minmax[1]
+ lat_max = min(max0, lat_max)
+
+ return lon_min, lon_max, lat_min, lat_max