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author | shumkovnd <shumkovnd@yandex-team.com> | 2023-11-10 14:39:34 +0300 |
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committer | shumkovnd <shumkovnd@yandex-team.com> | 2023-11-10 16:42:24 +0300 |
commit | 77eb2d3fdcec5c978c64e025ced2764c57c00285 (patch) | |
tree | c51edb0748ca8d4a08d7c7323312c27ba1a8b79a /contrib/python/matplotlib/py3/mpl_toolkits/axisartist/angle_helper.py | |
parent | dd6d20cadb65582270ac23f4b3b14ae189704b9d (diff) | |
download | ydb-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.py | 394 |
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 new file mode 100644 index 0000000000..1786cd70bc --- /dev/null +++ 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 |