91 lines
3.6 KiB
Python
91 lines
3.6 KiB
Python
"""Visualisation des couleurs de têtes de minifigs sur le catalogue complet."""
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from pathlib import Path
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from typing import Dict, Iterable, List, Tuple
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import matplotlib.pyplot as plt
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from lib.filesystem import ensure_parent_dir
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from lib.rebrickable.stats import read_rows
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def load_global_heads(heads_path: Path) -> List[dict]:
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"""Charge l'agrégat global des têtes par année."""
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return read_rows(heads_path)
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def select_top_colors(rows: Iterable[dict], limit: int = 12) -> List[Tuple[str, str, str]]:
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"""Retourne les couleurs les plus fréquentes globalement (nom, rgb, is_translucent)."""
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totals: Dict[Tuple[str, str, str], int] = {}
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for row in rows:
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key = (row["color_name"], row["color_rgb"], row["is_translucent"])
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totals[key] = totals.get(key, 0) + int(row["quantity"])
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sorted_colors = sorted(totals.items(), key=lambda item: (-item[1], item[0][0], item[0][1]))
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return [color for color, _ in sorted_colors[:limit]]
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def build_share_matrix(
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rows: Iterable[dict], top_colors: List[Tuple[str, str, str]]
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) -> Tuple[List[int], List[Tuple[str, str, str]], List[Dict[str, float]]]:
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"""Construit les parts par année en regroupant les couleurs hors top dans 'Autres'."""
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years = sorted({int(row["year"]) for row in rows})
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colors = top_colors + [("Autres", "444444", "false")]
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shares_by_year: List[Dict[str, float]] = []
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rows_by_year: Dict[int, List[dict]] = {year: [] for year in years}
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for row in rows:
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rows_by_year[int(row["year"])].append(row)
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for year in years:
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year_rows = rows_by_year[year]
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total = sum(int(r["quantity"]) for r in year_rows)
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shares: Dict[str, float] = {color[0]: 0.0 for color in colors}
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for r in year_rows:
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key = (r["color_name"], r["color_rgb"], r["is_translucent"])
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quantity = int(r["quantity"])
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target = "Autres" if key not in top_colors else r["color_name"]
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shares[target] = shares.get(target, 0.0) + quantity / total if total > 0 else 0.0
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shares_by_year.append(shares)
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return years, colors, shares_by_year
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def plot_global_head_shares(
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heads_path: Path,
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destination_path: Path,
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top_limit: int = 12,
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) -> None:
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"""Trace les parts des couleurs de têtes de minifigs par année (catalogue complet)."""
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rows = load_global_heads(heads_path)
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top_colors = select_top_colors(rows, limit=top_limit)
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years, colors, shares_by_year = build_share_matrix(rows, top_colors)
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fig, ax = plt.subplots(figsize=(14, 6))
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bottoms = [0.0] * len(years)
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y_positions = list(range(len(years)))
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for name, color_rgb, is_trans in colors:
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values = [shares[name] for shares in shares_by_year]
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edge = "#f2f2f2" if is_trans == "true" else "#0d0d0d"
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ax.bar(
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years,
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values,
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bottom=bottoms,
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color=f"#{color_rgb}",
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edgecolor=edge,
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label=name,
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linewidth=0.7,
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)
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bottoms = [b + v for b, v in zip(bottoms, values)]
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ax.set_ylim(0, 1.05)
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ax.set_ylabel("Part des couleurs (têtes de minifigs, catalogue complet)")
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ax.set_xlabel("Année")
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if len(years) > 15:
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step = max(1, len(years) // 10)
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ax.set_xticks(years[::step])
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else:
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ax.set_xticks(years)
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ax.set_title("Répartition des couleurs de têtes de minifigs par année (catalogue complet)")
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ax.legend(loc="upper left", bbox_to_anchor=(1.02, 1), frameon=False)
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ax.grid(True, axis="y", linestyle="--", alpha=0.25)
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ensure_parent_dir(destination_path)
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fig.tight_layout()
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fig.savefig(destination_path, dpi=170)
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plt.close(fig)
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