KIKIMR-19287: add task_stats_drawing script

1 files changed, 298 insertions, 0 deletions

diff --git a/contrib/python/matplotlib/py3/mpl_toolkits/axisartist/floating_axes.py b/contrib/python/matplotlib/py3/mpl_toolkits/axisartist/floating_axes.py
new file mode 100644
index 0000000000..97dafe98c6
--- /dev/null
+++ b/contrib/python/matplotlib/py3/mpl_toolkits/axisartist/floating_axes.py
@@ -0,0 +1,298 @@
+"""
+An experimental support for curvilinear grid.
+"""
+
+# TODO :
+# see if tick_iterator method can be simplified by reusing the parent method.
+
+import functools
+
+import numpy as np
+
+import matplotlib as mpl
+from matplotlib import _api, cbook
+import matplotlib.patches as mpatches
+from matplotlib.path import Path
+
+from mpl_toolkits.axes_grid1.parasite_axes import host_axes_class_factory
+
+from . import axislines, grid_helper_curvelinear
+from .axis_artist import AxisArtist
+from .grid_finder import ExtremeFinderSimple
+
+
+class FloatingAxisArtistHelper(
+        grid_helper_curvelinear.FloatingAxisArtistHelper):
+    pass
+
+
+class FixedAxisArtistHelper(grid_helper_curvelinear.FloatingAxisArtistHelper):
+
+    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
+        """
+        lon1, lon2, lat1, lat2 = grid_helper.grid_finder.extreme_finder(*[None] * 5)
+        value, nth_coord = _api.check_getitem(
+            dict(left=(lon1, 0), right=(lon2, 0), bottom=(lat1, 1), top=(lat2, 1)),
+            side=side)
+        super().__init__(grid_helper, nth_coord, value, axis_direction=side)
+        if nth_coord_ticks is None:
+            nth_coord_ticks = nth_coord
+        self.nth_coord_ticks = nth_coord_ticks
+
+        self.value = value
+        self.grid_helper = grid_helper
+        self._side = side
+
+    def update_lim(self, axes):
+        self.grid_helper.update_lim(axes)
+        self._grid_info = self.grid_helper._grid_info
+
+    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"]
+        yy0 = lat_levs / lat_factor
+
+        lon_levs, lon_n, lon_factor = self._grid_info["lon_info"]
+        xx0 = lon_levs / lon_factor
+
+        extremes = self.grid_helper.grid_finder.extreme_finder(*[None] * 5)
+        xmin, xmax = sorted(extremes[:2])
+        ymin, ymax = sorted(extremes[2:])
+
+        def trf_xy(x, y):
+            trf = grid_finder.get_transform() + axes.transData
+            return trf.transform(np.column_stack(np.broadcast_arrays(x, y))).T
+
+        if self.nth_coord == 0:
+            mask = (ymin <= yy0) & (yy0 <= ymax)
+            (xx1, yy1), (dxx1, dyy1), (dxx2, dyy2) = \
+                grid_helper_curvelinear._value_and_jacobian(
+                    trf_xy, self.value, yy0[mask], (xmin, xmax), (ymin, ymax))
+            labels = self._grid_info["lat_labels"]
+
+        elif self.nth_coord == 1:
+            mask = (xmin <= xx0) & (xx0 <= xmax)
+            (xx1, yy1), (dxx2, dyy2), (dxx1, dyy1) = \
+                grid_helper_curvelinear._value_and_jacobian(
+                    trf_xy, xx0[mask], self.value, (xmin, xmax), (ymin, ymax))
+            labels = self._grid_info["lon_labels"]
+
+        labels = [l for l, m in zip(labels, mask) if m]
+
+        angle_normal = np.arctan2(dyy1, dxx1)
+        angle_tangent = np.arctan2(dyy2, dxx2)
+        mm = (dyy1 == 0) & (dxx1 == 0)  # points with degenerate normal
+        angle_normal[mm] = angle_tangent[mm] + np.pi / 2
+
+        tick_to_axes = self.get_tick_transform(axes) - axes.transAxes
+        in_01 = functools.partial(
+            mpl.transforms._interval_contains_close, (0, 1))
+
+        def f1():
+            for x, y, normal, tangent, lab \
+                    in zip(xx1, yy1, angle_normal, angle_tangent, labels):
+                c2 = tick_to_axes.transform((x, y))
+                if in_01(c2[0]) and in_01(c2[1]):
+                    yield [x, y], *np.rad2deg([normal, tangent]), lab
+
+        return f1(), iter([])
+
+    def get_line(self, axes):
+        self.update_lim(axes)
+        k, v = dict(left=("lon_lines0", 0),
+                    right=("lon_lines0", 1),
+                    bottom=("lat_lines0", 0),
+                    top=("lat_lines0", 1))[self._side]
+        xx, yy = self._grid_info[k][v]
+        return Path(np.column_stack([xx, yy]))
+
+
+class ExtremeFinderFixed(ExtremeFinderSimple):
+    # docstring inherited
+
+    def __init__(self, extremes):
+        """
+        This subclass always returns the same bounding box.
+
+        Parameters
+        ----------
+        extremes : (float, float, float, float)
+            The bounding box that this helper always returns.
+        """
+        self._extremes = extremes
+
+    def __call__(self, transform_xy, x1, y1, x2, y2):
+        # docstring inherited
+        return self._extremes
+
+
+class GridHelperCurveLinear(grid_helper_curvelinear.GridHelperCurveLinear):
+
+    def __init__(self, aux_trans, extremes,
+                 grid_locator1=None,
+                 grid_locator2=None,
+                 tick_formatter1=None,
+                 tick_formatter2=None):
+        # docstring inherited
+        super().__init__(aux_trans,
+                         extreme_finder=ExtremeFinderFixed(extremes),
+                         grid_locator1=grid_locator1,
+                         grid_locator2=grid_locator2,
+                         tick_formatter1=tick_formatter1,
+                         tick_formatter2=tick_formatter2)
+
+    @_api.deprecated("3.8")
+    def get_data_boundary(self, side):
+        """
+        Return v=0, nth=1.
+        """
+        lon1, lon2, lat1, lat2 = self.grid_finder.extreme_finder(*[None] * 5)
+        return dict(left=(lon1, 0),
+                    right=(lon2, 0),
+                    bottom=(lat1, 1),
+                    top=(lat2, 1))[side]
+
+    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
+        # This is not the same as the FixedAxisArtistHelper class used by
+        # grid_helper_curvelinear.GridHelperCurveLinear.new_fixed_axis!
+        helper = FixedAxisArtistHelper(
+            self, loc, nth_coord_ticks=nth_coord)
+        axisline = AxisArtist(axes, helper, axis_direction=axis_direction)
+        # Perhaps should be moved to the base class?
+        axisline.line.set_clip_on(True)
+        axisline.line.set_clip_box(axisline.axes.bbox)
+        return axisline
+
+    # new_floating_axis will inherit the grid_helper's extremes.
+
+    # def new_floating_axis(self, nth_coord,
+    #                       value,
+    #                       axes=None,
+    #                       axis_direction="bottom"
+    #                       ):
+
+    #     axis = super(GridHelperCurveLinear,
+    #                  self).new_floating_axis(nth_coord,
+    #                                          value, axes=axes,
+    #                                          axis_direction=axis_direction)
+
+    #     # set extreme values of the axis helper
+    #     if nth_coord == 1:
+    #         axis.get_helper().set_extremes(*self._extremes[:2])
+    #     elif nth_coord == 0:
+    #         axis.get_helper().set_extremes(*self._extremes[2:])
+
+    #     return axis
+
+    def _update_grid(self, x1, y1, x2, y2):
+        if self._grid_info is None:
+            self._grid_info = dict()
+
+        grid_info = self._grid_info
+
+        grid_finder = self.grid_finder
+        extremes = grid_finder.extreme_finder(grid_finder.inv_transform_xy,
+                                              x1, y1, x2, y2)
+
+        lon_min, lon_max = sorted(extremes[:2])
+        lat_min, lat_max = sorted(extremes[2:])
+        grid_info["extremes"] = lon_min, lon_max, lat_min, lat_max  # extremes
+
+        lon_levs, lon_n, lon_factor = \
+            grid_finder.grid_locator1(lon_min, lon_max)
+        lon_levs = np.asarray(lon_levs)
+        lat_levs, lat_n, lat_factor = \
+            grid_finder.grid_locator2(lat_min, lat_max)
+        lat_levs = np.asarray(lat_levs)
+
+        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)
+
+        lon_values = lon_levs[:lon_n] / lon_factor
+        lat_values = lat_levs[:lat_n] / lat_factor
+
+        lon_lines, lat_lines = grid_finder._get_raw_grid_lines(
+            lon_values[(lon_min < lon_values) & (lon_values < lon_max)],
+            lat_values[(lat_min < lat_values) & (lat_values < lat_max)],
+            lon_min, lon_max, lat_min, lat_max)
+
+        grid_info["lon_lines"] = lon_lines
+        grid_info["lat_lines"] = lat_lines
+
+        lon_lines, lat_lines = grid_finder._get_raw_grid_lines(
+            # lon_min, lon_max, lat_min, lat_max)
+            extremes[:2], extremes[2:], *extremes)
+
+        grid_info["lon_lines0"] = lon_lines
+        grid_info["lat_lines0"] = lat_lines
+
+    def get_gridlines(self, which="major", axis="both"):
+        grid_lines = []
+        if axis in ["both", "x"]:
+            grid_lines.extend(self._grid_info["lon_lines"])
+        if axis in ["both", "y"]:
+            grid_lines.extend(self._grid_info["lat_lines"])
+        return grid_lines
+
+
+class FloatingAxesBase:
+
+    def __init__(self, *args, grid_helper, **kwargs):
+        _api.check_isinstance(GridHelperCurveLinear, grid_helper=grid_helper)
+        super().__init__(*args, grid_helper=grid_helper, **kwargs)
+        self.set_aspect(1.)
+
+    def _gen_axes_patch(self):
+        # docstring inherited
+        x0, x1, y0, y1 = self.get_grid_helper().grid_finder.extreme_finder(*[None] * 5)
+        patch = mpatches.Polygon([(x0, y0), (x1, y0), (x1, y1), (x0, y1)])
+        patch.get_path()._interpolation_steps = 100
+        return patch
+
+    def clear(self):
+        super().clear()
+        self.patch.set_transform(
+            self.get_grid_helper().grid_finder.get_transform()
+            + self.transData)
+        # The original patch is not in the draw tree; it is only used for
+        # clipping purposes.
+        orig_patch = super()._gen_axes_patch()
+        orig_patch.set_figure(self.figure)
+        orig_patch.set_transform(self.transAxes)
+        self.patch.set_clip_path(orig_patch)
+        self.gridlines.set_clip_path(orig_patch)
+        self.adjust_axes_lim()
+
+    def adjust_axes_lim(self):
+        bbox = self.patch.get_path().get_extents(
+            # First transform to pixel coords, then to parent data coords.
+            self.patch.get_transform() - self.transData)
+        bbox = bbox.expanded(1.02, 1.02)
+        self.set_xlim(bbox.xmin, bbox.xmax)
+        self.set_ylim(bbox.ymin, bbox.ymax)
+
+
+floatingaxes_class_factory = cbook._make_class_factory(
+    FloatingAxesBase, "Floating{}")
+FloatingAxes = floatingaxes_class_factory(
+    host_axes_class_factory(axislines.Axes))
+FloatingSubplot = FloatingAxes