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| from __future__ import annotations | |
| from typing import TYPE_CHECKING, cast | |
| from contourpy import FillType, LineType | |
| from contourpy.util.mpl_util import mpl_codes_to_offsets | |
| if TYPE_CHECKING: | |
| from contourpy._contourpy import ( | |
| CoordinateArray, FillReturn, LineReturn, LineReturn_Separate, LineReturn_SeparateCode, | |
| ) | |
| def filled_to_bokeh( | |
| filled: FillReturn, | |
| fill_type: FillType, | |
| ) -> tuple[list[list[CoordinateArray]], list[list[CoordinateArray]]]: | |
| xs: list[list[CoordinateArray]] = [] | |
| ys: list[list[CoordinateArray]] = [] | |
| if fill_type in (FillType.OuterOffset, FillType.ChunkCombinedOffset, | |
| FillType.OuterCode, FillType.ChunkCombinedCode): | |
| have_codes = fill_type in (FillType.OuterCode, FillType.ChunkCombinedCode) | |
| for points, offsets in zip(*filled): | |
| if points is None: | |
| continue | |
| if have_codes: | |
| offsets = mpl_codes_to_offsets(offsets) | |
| xs.append([]) # New outer with zero or more holes. | |
| ys.append([]) | |
| for i in range(len(offsets)-1): | |
| xys = points[offsets[i]:offsets[i+1]] | |
| xs[-1].append(xys[:, 0]) | |
| ys[-1].append(xys[:, 1]) | |
| elif fill_type in (FillType.ChunkCombinedCodeOffset, FillType.ChunkCombinedOffsetOffset): | |
| for points, codes_or_offsets, outer_offsets in zip(*filled): | |
| if points is None: | |
| continue | |
| for j in range(len(outer_offsets)-1): | |
| if fill_type == FillType.ChunkCombinedCodeOffset: | |
| codes = codes_or_offsets[outer_offsets[j]:outer_offsets[j+1]] | |
| offsets = mpl_codes_to_offsets(codes) + outer_offsets[j] | |
| else: | |
| offsets = codes_or_offsets[outer_offsets[j]:outer_offsets[j+1]+1] | |
| xs.append([]) # New outer with zero or more holes. | |
| ys.append([]) | |
| for k in range(len(offsets)-1): | |
| xys = points[offsets[k]:offsets[k+1]] | |
| xs[-1].append(xys[:, 0]) | |
| ys[-1].append(xys[:, 1]) | |
| else: | |
| raise RuntimeError(f"Conversion of FillType {fill_type} to Bokeh is not implemented") | |
| return xs, ys | |
| def lines_to_bokeh( | |
| lines: LineReturn, | |
| line_type: LineType, | |
| ) -> tuple[list[CoordinateArray], list[CoordinateArray]]: | |
| xs: list[CoordinateArray] = [] | |
| ys: list[CoordinateArray] = [] | |
| if line_type == LineType.Separate: | |
| if TYPE_CHECKING: | |
| lines = cast(LineReturn_Separate, lines) | |
| for line in lines: | |
| xs.append(line[:, 0]) | |
| ys.append(line[:, 1]) | |
| elif line_type == LineType.SeparateCode: | |
| if TYPE_CHECKING: | |
| lines = cast(LineReturn_SeparateCode, lines) | |
| for line in lines[0]: | |
| xs.append(line[:, 0]) | |
| ys.append(line[:, 1]) | |
| elif line_type in (LineType.ChunkCombinedCode, LineType.ChunkCombinedOffset): | |
| for points, offsets in zip(*lines): | |
| if points is None: | |
| continue | |
| if line_type == LineType.ChunkCombinedCode: | |
| offsets = mpl_codes_to_offsets(offsets) | |
| for i in range(len(offsets)-1): | |
| line = points[offsets[i]:offsets[i+1]] | |
| xs.append(line[:, 0]) | |
| ys.append(line[:, 1]) | |
| else: | |
| raise RuntimeError(f"Conversion of LineType {line_type} to Bokeh is not implemented") | |
| return xs, ys | |