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from __future__ import annotations
from abc import ABC, abstractmethod
from typing import TYPE_CHECKING, Any
import numpy as np
if TYPE_CHECKING:
import io
from numpy.typing import ArrayLike
from contourpy._contourpy import CoordinateArray, FillReturn, FillType, LineReturn, LineType
class Renderer(ABC):
"""Abstract base class for renderers, defining the interface that they must implement."""
def _grid_as_2d(self, x: ArrayLike, y: ArrayLike) -> tuple[CoordinateArray, CoordinateArray]:
x = np.asarray(x)
y = np.asarray(y)
if x.ndim == 1:
x, y = np.meshgrid(x, y)
return x, y
x = np.asarray(x)
y = np.asarray(y)
if x.ndim == 1:
x, y = np.meshgrid(x, y)
return x, y
@abstractmethod
def filled(
self,
filled: FillReturn,
fill_type: FillType | str,
ax: Any = 0,
color: str = "C0",
alpha: float = 0.7,
) -> None:
pass
@abstractmethod
def grid(
self,
x: ArrayLike,
y: ArrayLike,
ax: Any = 0,
color: str = "black",
alpha: float = 0.1,
point_color: str | None = None,
quad_as_tri_alpha: float = 0,
) -> None:
pass
@abstractmethod
def lines(
self,
lines: LineReturn,
line_type: LineType | str,
ax: Any = 0,
color: str = "C0",
alpha: float = 1.0,
linewidth: float = 1,
) -> None:
pass
@abstractmethod
def mask(
self,
x: ArrayLike,
y: ArrayLike,
z: ArrayLike | np.ma.MaskedArray[Any, Any],
ax: Any = 0,
color: str = "black",
) -> None:
pass
@abstractmethod
def save(self, filename: str, transparent: bool = False) -> None:
pass
@abstractmethod
def save_to_buffer(self) -> io.BytesIO:
pass
@abstractmethod
def show(self) -> None:
pass
@abstractmethod
def title(self, title: str, ax: Any = 0, color: str | None = None) -> None:
pass
@abstractmethod
def z_values(
self,
x: ArrayLike,
y: ArrayLike,
z: ArrayLike,
ax: Any = 0,
color: str = "green",
fmt: str = ".1f",
quad_as_tri: bool = False,
) -> None:
pass
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