167 lines
5.0 KiB
Python
167 lines
5.0 KiB
Python
from __future__ import annotations
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from abc import ABC, abstractmethod
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from typing import TYPE_CHECKING, Any
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import numpy as np
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if TYPE_CHECKING:
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import io
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from numpy.typing import ArrayLike
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from contourpy._contourpy import CoordinateArray, FillReturn, FillType, LineReturn, LineType
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class Renderer(ABC):
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"""Abstract base class for renderers."""
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def _grid_as_2d(self, x: ArrayLike, y: ArrayLike) -> tuple[CoordinateArray, CoordinateArray]:
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x = np.asarray(x)
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y = np.asarray(y)
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if x.ndim == 1:
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x, y = np.meshgrid(x, y)
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return x, y
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@abstractmethod
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def filled(
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self,
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filled: FillReturn,
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fill_type: FillType | str,
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ax: Any = 0,
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color: str = "C0",
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alpha: float = 0.7,
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) -> None:
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pass
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@abstractmethod
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def grid(
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self,
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x: ArrayLike,
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y: ArrayLike,
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ax: Any = 0,
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color: str = "black",
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alpha: float = 0.1,
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point_color: str | None = None,
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quad_as_tri_alpha: float = 0,
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) -> None:
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pass
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@abstractmethod
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def lines(
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self,
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lines: LineReturn,
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line_type: LineType | str,
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ax: Any = 0,
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color: str = "C0",
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alpha: float = 1.0,
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linewidth: float = 1,
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) -> None:
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pass
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@abstractmethod
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def mask(
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self,
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x: ArrayLike,
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y: ArrayLike,
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z: ArrayLike | np.ma.MaskedArray[Any, Any],
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ax: Any = 0,
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color: str = "black",
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) -> None:
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pass
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def multi_filled(
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self,
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multi_filled: list[FillReturn],
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fill_type: FillType | str,
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ax: Any = 0,
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color: str | None = None,
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**kwargs: Any,
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) -> None:
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"""Plot multiple sets of filled contours on a single axes.
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Args:
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multi_filled (list of filled contour arrays): Multiple filled contour sets as returned
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by :meth:`.ContourGenerator.multi_filled`.
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fill_type (FillType or str): Type of filled data as returned by
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:attr:`~.ContourGenerator.fill_type`, or string equivalent.
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ax (int or Renderer-specific axes or figure object, optional): Which axes to plot on,
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default ``0``.
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color (str or None, optional): If a string color then this same color is used for all
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filled contours. If ``None``, the default, then the filled contour sets use colors
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from the ``tab10`` colormap in order, wrapping around to the beginning if more than
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10 sets of filled contours are rendered.
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kwargs: All other keyword argument are passed on to
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:meth:`.Renderer.filled` unchanged.
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.. versionadded:: 1.3.0
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"""
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if color is not None:
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kwargs["color"] = color
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for i, filled in enumerate(multi_filled):
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if color is None:
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kwargs["color"] = f"C{i % 10}"
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self.filled(filled, fill_type, ax, **kwargs)
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def multi_lines(
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self,
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multi_lines: list[LineReturn],
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line_type: LineType | str,
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ax: Any = 0,
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color: str | None = None,
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**kwargs: Any,
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) -> None:
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"""Plot multiple sets of contour lines on a single axes.
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Args:
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multi_lines (list of contour line arrays): Multiple contour line sets as returned by
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:meth:`.ContourGenerator.multi_lines`.
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line_type (LineType or str): Type of line data as returned by
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:attr:`~.ContourGenerator.line_type`, or string equivalent.
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ax (int or Renderer-specific axes or figure object, optional): Which axes to plot on,
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default ``0``.
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color (str or None, optional): If a string color then this same color is used for all
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lines. If ``None``, the default, then the line sets use colors from the ``tab10``
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colormap in order, wrapping around to the beginning if more than 10 sets of lines
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are rendered.
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kwargs: All other keyword argument are passed on to
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:meth:`Renderer.lines` unchanged.
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.. versionadded:: 1.3.0
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"""
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if color is not None:
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kwargs["color"] = color
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for i, lines in enumerate(multi_lines):
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if color is None:
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kwargs["color"] = f"C{i % 10}"
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self.lines(lines, line_type, ax, **kwargs)
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@abstractmethod
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def save(self, filename: str, transparent: bool = False) -> None:
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pass
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@abstractmethod
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def save_to_buffer(self) -> io.BytesIO:
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pass
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@abstractmethod
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def show(self) -> None:
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pass
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@abstractmethod
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def title(self, title: str, ax: Any = 0, color: str | None = None) -> None:
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pass
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@abstractmethod
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def z_values(
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self,
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x: ArrayLike,
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y: ArrayLike,
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z: ArrayLike,
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ax: Any = 0,
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color: str = "green",
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fmt: str = ".1f",
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quad_as_tri: bool = False,
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) -> None:
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pass
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