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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/py2/mpl_toolkits/axisartist/grid_helper_curvelinear.py
parentdd6d20cadb65582270ac23f4b3b14ae189704b9d (diff)
downloadydb-77eb2d3fdcec5c978c64e025ced2764c57c00285.tar.gz
KIKIMR-19287: add task_stats_drawing script
Diffstat (limited to 'contrib/python/matplotlib/py2/mpl_toolkits/axisartist/grid_helper_curvelinear.py')
-rw-r--r--contrib/python/matplotlib/py2/mpl_toolkits/axisartist/grid_helper_curvelinear.py475
1 files changed, 475 insertions, 0 deletions
diff --git a/contrib/python/matplotlib/py2/mpl_toolkits/axisartist/grid_helper_curvelinear.py b/contrib/python/matplotlib/py2/mpl_toolkits/axisartist/grid_helper_curvelinear.py
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+++ b/contrib/python/matplotlib/py2/mpl_toolkits/axisartist/grid_helper_curvelinear.py
@@ -0,0 +1,475 @@
+"""
+An experimental support for curvilinear grid.
+"""
+from __future__ import (absolute_import, division, print_function,
+ unicode_literals)
+
+import six
+from six.moves import zip
+
+from itertools import chain
+from .grid_finder import GridFinder
+
+from .axislines import AxisArtistHelper, GridHelperBase
+from .axis_artist import AxisArtist
+from matplotlib.transforms import Affine2D, IdentityTransform
+import numpy as np
+
+from matplotlib.path import Path
+
+class FixedAxisArtistHelper(AxisArtistHelper.Fixed):
+ """
+ Helper class for a fixed axis.
+ """
+
+ def __init__(self, grid_helper, side, nth_coord_ticks=None):
+ """
+ nth_coord = along which coordinate value varies.
+ nth_coord = 0 -> x axis, nth_coord = 1 -> y axis
+ """
+
+ super(FixedAxisArtistHelper, self).__init__(loc=side)
+
+ self.grid_helper = grid_helper
+ if nth_coord_ticks is None:
+ nth_coord_ticks = self.nth_coord
+ self.nth_coord_ticks = nth_coord_ticks
+
+ self.side = side
+ self._limits_inverted = False
+
+ def update_lim(self, axes):
+ self.grid_helper.update_lim(axes)
+
+ if self.nth_coord == 0:
+ xy1, xy2 = axes.get_ylim()
+ else:
+ xy1, xy2 = axes.get_xlim()
+
+ if xy1 > xy2:
+ self._limits_inverted = True
+ else:
+ self._limits_inverted = False
+
+
+ def change_tick_coord(self, coord_number=None):
+ if coord_number is None:
+ self.nth_coord_ticks = 1 - self.nth_coord_ticks
+ elif coord_number in [0, 1]:
+ self.nth_coord_ticks = coord_number
+ else:
+ raise Exception("wrong coord number")
+
+
+ def get_tick_transform(self, axes):
+ return axes.transData
+
+ def get_tick_iterators(self, axes):
+ """tick_loc, tick_angle, tick_label"""
+
+ g = self.grid_helper
+
+ if self._limits_inverted:
+ side = {"left":"right","right":"left",
+ "top":"bottom", "bottom":"top"}[self.side]
+ else:
+ side = self.side
+
+ ti1 = g.get_tick_iterator(self.nth_coord_ticks, side)
+ ti2 = g.get_tick_iterator(1-self.nth_coord_ticks, side, minor=True)
+
+ #ti2 = g.get_tick_iterator(1-self.nth_coord_ticks, self.side, minor=True)
+
+ return chain(ti1, ti2), iter([])
+
+
+
+class FloatingAxisArtistHelper(AxisArtistHelper.Floating):
+
+ def __init__(self, grid_helper, nth_coord, value, axis_direction=None):
+ """
+ nth_coord = along which coordinate value varies.
+ nth_coord = 0 -> x axis, nth_coord = 1 -> y axis
+ """
+
+ super(FloatingAxisArtistHelper, self).__init__(nth_coord,
+ value,
+ )
+ self.value = value
+ self.grid_helper = grid_helper
+ self._extremes = None, None
+
+ self._get_line_path = None # a method that returns a Path.
+ self._line_num_points = 100 # number of points to create a line
+
+ def set_extremes(self, e1, e2):
+ self._extremes = e1, e2
+
+ def update_lim(self, axes):
+ self.grid_helper.update_lim(axes)
+
+ x1, x2 = axes.get_xlim()
+ y1, y2 = axes.get_ylim()
+ grid_finder = self.grid_helper.grid_finder
+ extremes = grid_finder.extreme_finder(grid_finder.inv_transform_xy,
+ x1, y1, x2, y2)
+
+ extremes = list(extremes)
+ e1, e2 = self._extremes # ranges of other coordinates
+ if self.nth_coord == 0:
+ if e1 is not None:
+ extremes[2] = max(e1, extremes[2])
+ if e2 is not None:
+ extremes[3] = min(e2, extremes[3])
+ elif self.nth_coord == 1:
+ if e1 is not None:
+ extremes[0] = max(e1, extremes[0])
+ if e2 is not None:
+ extremes[1] = min(e2, extremes[1])
+
+ grid_info = dict()
+ lon_min, lon_max, lat_min, lat_max = extremes
+ lon_levs, lon_n, lon_factor = \
+ grid_finder.grid_locator1(lon_min, lon_max)
+ lat_levs, lat_n, lat_factor = \
+ grid_finder.grid_locator2(lat_min, lat_max)
+ grid_info["extremes"] = extremes
+
+ grid_info["lon_info"] = lon_levs, lon_n, lon_factor
+ grid_info["lat_info"] = lat_levs, lat_n, lat_factor
+
+ grid_info["lon_labels"] = grid_finder.tick_formatter1("bottom",
+ lon_factor,
+ lon_levs)
+
+ grid_info["lat_labels"] = grid_finder.tick_formatter2("bottom",
+ lat_factor,
+ lat_levs)
+
+ grid_finder = self.grid_helper.grid_finder
+
+ #e1, e2 = self._extremes # ranges of other coordinates
+ if self.nth_coord == 0:
+ xx0 = np.linspace(self.value, self.value, self._line_num_points)
+ yy0 = np.linspace(extremes[2], extremes[3], self._line_num_points)
+ xx, yy = grid_finder.transform_xy(xx0, yy0)
+ elif self.nth_coord == 1:
+ xx0 = np.linspace(extremes[0], extremes[1], self._line_num_points)
+ yy0 = np.linspace(self.value, self.value, self._line_num_points)
+ xx, yy = grid_finder.transform_xy(xx0, yy0)
+
+ grid_info["line_xy"] = xx, yy
+ self.grid_info = grid_info
+
+ def get_axislabel_transform(self, axes):
+ return Affine2D() #axes.transData
+
+ def get_axislabel_pos_angle(self, axes):
+
+ extremes = self.grid_info["extremes"]
+
+ if self.nth_coord == 0:
+ xx0 = self.value
+ yy0 = (extremes[2]+extremes[3])/2.
+ dxx, dyy = 0., abs(extremes[2]-extremes[3])/1000.
+ elif self.nth_coord == 1:
+ xx0 = (extremes[0]+extremes[1])/2.
+ yy0 = self.value
+ dxx, dyy = abs(extremes[0]-extremes[1])/1000., 0.
+
+ grid_finder = self.grid_helper.grid_finder
+ xx1, yy1 = grid_finder.transform_xy([xx0], [yy0])
+
+ trans_passingthrough_point = axes.transData + axes.transAxes.inverted()
+ p = trans_passingthrough_point.transform_point([xx1[0], yy1[0]])
+
+
+ if (0. <= p[0] <= 1.) and (0. <= p[1] <= 1.):
+ xx1c, yy1c = axes.transData.transform_point([xx1[0], yy1[0]])
+ xx2, yy2 = grid_finder.transform_xy([xx0+dxx], [yy0+dyy])
+ xx2c, yy2c = axes.transData.transform_point([xx2[0], yy2[0]])
+
+ return (xx1c, yy1c), np.arctan2(yy2c-yy1c, xx2c-xx1c)/np.pi*180.
+ else:
+ return None, None
+
+
+
+
+ def get_tick_transform(self, axes):
+ return IdentityTransform() #axes.transData
+
+ def get_tick_iterators(self, axes):
+ """tick_loc, tick_angle, tick_label, (optionally) tick_label"""
+
+ grid_finder = self.grid_helper.grid_finder
+
+ lat_levs, lat_n, lat_factor = self.grid_info["lat_info"]
+ lat_levs = np.asarray(lat_levs)
+ if lat_factor is not None:
+ yy0 = lat_levs / lat_factor
+ dy = 0.01 / lat_factor
+ else:
+ yy0 = lat_levs
+ dy = 0.01
+
+ lon_levs, lon_n, lon_factor = self.grid_info["lon_info"]
+ lon_levs = np.asarray(lon_levs)
+ if lon_factor is not None:
+ xx0 = lon_levs / lon_factor
+ dx = 0.01 / lon_factor
+ else:
+ xx0 = lon_levs
+ dx = 0.01
+
+ if None in self._extremes:
+ e0, e1 = self._extremes
+ else:
+ e0, e1 = sorted(self._extremes)
+ if e0 is None:
+ e0 = -np.inf
+ if e1 is None:
+ e1 = np.inf
+
+ if self.nth_coord == 0:
+ mask = (e0 <= yy0) & (yy0 <= e1)
+ #xx0, yy0 = xx0[mask], yy0[mask]
+ yy0 = yy0[mask]
+ elif self.nth_coord == 1:
+ mask = (e0 <= xx0) & (xx0 <= e1)
+ #xx0, yy0 = xx0[mask], yy0[mask]
+ xx0 = xx0[mask]
+
+ def transform_xy(x, y):
+ x1, y1 = grid_finder.transform_xy(x, y)
+ x2y2 = axes.transData.transform(np.array([x1, y1]).transpose())
+ x2, y2 = x2y2.transpose()
+ return x2, y2
+
+ # find angles
+ if self.nth_coord == 0:
+ xx0 = np.empty_like(yy0)
+ xx0.fill(self.value)
+
+ xx1, yy1 = transform_xy(xx0, yy0)
+
+ xx00 = xx0.copy()
+ xx00[xx0+dx>e1] -= dx
+ xx1a, yy1a = transform_xy(xx00, yy0)
+ xx1b, yy1b = transform_xy(xx00+dx, yy0)
+
+ xx2a, yy2a = transform_xy(xx0, yy0)
+ xx2b, yy2b = transform_xy(xx0, yy0+dy)
+
+ labels = self.grid_info["lat_labels"]
+ labels = [l for l, m in zip(labels, mask) if m]
+
+ elif self.nth_coord == 1:
+ yy0 = np.empty_like(xx0)
+ yy0.fill(self.value)
+
+ xx1, yy1 = transform_xy(xx0, yy0)
+
+ xx1a, yy1a = transform_xy(xx0, yy0)
+ xx1b, yy1b = transform_xy(xx0, yy0+dy)
+
+ xx00 = xx0.copy()
+ xx00[xx0+dx>e1] -= dx
+ xx2a, yy2a = transform_xy(xx00, yy0)
+ xx2b, yy2b = transform_xy(xx00+dx, yy0)
+
+ labels = self.grid_info["lon_labels"]
+ labels = [l for l, m in zip(labels, mask) if m]
+
+
+ def f1():
+ dd = np.arctan2(yy1b-yy1a, xx1b-xx1a) # angle normal
+ dd2 = np.arctan2(yy2b-yy2a, xx2b-xx2a) # angle tangent
+ mm = ((yy1b-yy1a)==0.) & ((xx1b-xx1a)==0.) # mask where dd1 is not defined
+ dd[mm] = dd2[mm] + np.pi / 2
+ #dd = np.arctan2(yy2-yy1, xx2-xx1) # angle normal
+ #dd2 = np.arctan2(yy3-yy1, xx3-xx1) # angle tangent
+ #mm = ((yy2-yy1)==0.) & ((xx2-xx1)==0.) # mask where dd1 is not defined
+ #dd[mm] = dd2[mm] + np.pi / 2
+
+ #dd += np.pi
+
+ #dd = np.arctan2(xx2-xx1, angle_tangent-yy1)
+ trans_tick = self.get_tick_transform(axes)
+ tr2ax = trans_tick + axes.transAxes.inverted()
+ for x, y, d, d2, lab in zip(xx1, yy1, dd, dd2, labels):
+ c2 = tr2ax.transform_point((x, y))
+ delta=0.00001
+ if (0. -delta<= c2[0] <= 1.+delta) and \
+ (0. -delta<= c2[1] <= 1.+delta):
+ d1 = d/3.14159*180.
+ d2 = d2/3.14159*180.
+ yield [x, y], d1, d2, lab
+
+ return f1(), iter([])
+
+ def get_line_transform(self, axes):
+ return axes.transData
+
+ def get_line(self, axes):
+ self.update_lim(axes)
+ x, y = self.grid_info["line_xy"]
+
+ if self._get_line_path is None:
+ return Path(np.column_stack([x, y]))
+ else:
+ return self._get_line_path(axes, x, y)
+
+
+
+
+class GridHelperCurveLinear(GridHelperBase):
+
+ def __init__(self, aux_trans,
+ extreme_finder=None,
+ grid_locator1=None,
+ grid_locator2=None,
+ tick_formatter1=None,
+ tick_formatter2=None):
+ """
+ aux_trans : a transform from the source (curved) coordinate to
+ target (rectilinear) coordinate. An instance of MPL's Transform
+ (inverse transform should be defined) or a tuple of two callable
+ objects which defines the transform and its inverse. The callables
+ need take two arguments of array of source coordinates and
+ should return two target coordinates.
+
+ e.g., ``x2, y2 = trans(x1, y1)``
+ """
+ super(GridHelperCurveLinear, self).__init__()
+
+ self.grid_info = None
+ self._old_values = None
+ #self._grid_params = dict()
+ self._aux_trans = aux_trans
+
+ self.grid_finder = GridFinder(aux_trans,
+ extreme_finder,
+ grid_locator1,
+ grid_locator2,
+ tick_formatter1,
+ tick_formatter2)
+
+
+ def update_grid_finder(self, aux_trans=None, **kw):
+
+ if aux_trans is not None:
+ self.grid_finder.update_transform(aux_trans)
+
+ self.grid_finder.update(**kw)
+ self.invalidate()
+
+
+ def _update(self, x1, x2, y1, y2):
+ "bbox in 0-based image coordinates"
+ # update wcsgrid
+
+ if self.valid() and self._old_values == (x1, x2, y1, y2):
+ return
+
+ self._update_grid(x1, y1, x2, y2)
+
+ self._old_values = (x1, x2, y1, y2)
+
+ self._force_update = False
+
+
+ def new_fixed_axis(self, loc,
+ nth_coord=None,
+ axis_direction=None,
+ offset=None,
+ axes=None):
+
+
+ if axes is None:
+ axes = self.axes
+
+ if axis_direction is None:
+ axis_direction = loc
+ _helper = FixedAxisArtistHelper(self, loc,
+ #nth_coord,
+ nth_coord_ticks=nth_coord,
+ )
+
+ axisline = AxisArtist(axes, _helper, axis_direction=axis_direction)
+
+ return axisline
+
+
+ def new_floating_axis(self, nth_coord,
+ value,
+ axes=None,
+ axis_direction="bottom"
+ ):
+
+ if axes is None:
+ axes = self.axes
+
+ _helper = FloatingAxisArtistHelper(
+ self, nth_coord, value, axis_direction)
+
+ axisline = AxisArtist(axes, _helper)
+
+ #_helper = FloatingAxisArtistHelper(self, nth_coord,
+ # value,
+ # label_direction=label_direction,
+ # )
+
+ #axisline = AxisArtistFloating(axes, _helper,
+ # axis_direction=axis_direction)
+ axisline.line.set_clip_on(True)
+ axisline.line.set_clip_box(axisline.axes.bbox)
+ #axisline.major_ticklabels.set_visible(True)
+ #axisline.minor_ticklabels.set_visible(False)
+
+ #axisline.major_ticklabels.set_rotate_along_line(True)
+ #axisline.set_rotate_label_along_line(True)
+
+ return axisline
+
+
+ def _update_grid(self, x1, y1, x2, y2):
+
+ self.grid_info = self.grid_finder.get_grid_info(x1, y1, x2, y2)
+
+
+ def get_gridlines(self, which="major", axis="both"):
+ grid_lines = []
+
+ if axis in ["both", "x"]:
+ for gl in self.grid_info["lon"]["lines"]:
+ grid_lines.extend(gl)
+ if axis in ["both", "y"]:
+ for gl in self.grid_info["lat"]["lines"]:
+ grid_lines.extend(gl)
+
+ return grid_lines
+
+
+ def get_tick_iterator(self, nth_coord, axis_side, minor=False):
+
+ #axisnr = dict(left=0, bottom=1, right=2, top=3)[axis_side]
+ angle_tangent = dict(left=90, right=90, bottom=0, top=0)[axis_side]
+ #angle = [0, 90, 180, 270][axisnr]
+ lon_or_lat = ["lon", "lat"][nth_coord]
+ if not minor: # major ticks
+ def f():
+ for (xy, a), l in zip(self.grid_info[lon_or_lat]["tick_locs"][axis_side],
+ self.grid_info[lon_or_lat]["tick_labels"][axis_side]):
+ angle_normal = a
+ yield xy, angle_normal, angle_tangent, l
+ else:
+ def f():
+ for (xy, a), l in zip(self.grid_info[lon_or_lat]["tick_locs"][axis_side],
+ self.grid_info[lon_or_lat]["tick_labels"][axis_side]):
+ angle_normal = a
+ yield xy, angle_normal, angle_tangent, ""
+ #for xy, a, l in self.grid_info[lon_or_lat]["ticks"][axis_side]:
+ # yield xy, a, ""
+
+ return f()