# -*- coding: utf-8 -*-
"""
Created on Fri Oct 3 12:42:55 2025
@author: Moritz Romeike
"""
# ------------------------------------------------------------------------
# Programmcode 19 (Python): Heatmap der Lieferantenanteile (mit echarts)
# ------------------------------------------------------------------------
import os, json, webbrowser
# ------------------ Daten ------------------
lieferanten_anteile = [
12.5, 10.3, 9.8, 8.5, 7.6, 6.9, 6.5, 6.2, 5.8, 5.2,
4.9, 4.6, 4.2, 3.9, 3.7, 3.5, 3.3, 3.1, 2.9, 2.7,
2.5, 2.3, 2.1, 1.9, 1.8, 1.7, 1.6, 1.5, 1.4, 1.3,
1.2, 1.1, 1.0, 0.9, 0.8, 0.7, 0.6, 0.5, 0.4, 0.3,
0.3, 0.3, 0.3, 0.2, 0.2, 0.2, 0.1, 0.1, 0.1, 0.1
]
lieferanten = [f"Lieferant {i+1}" for i in range(len(lieferanten_anteile))]
y_categories = ["Marktanteil (%)"]
data_triplets = [[i, 0, v] for i, v in enumerate(lieferanten_anteile)]
min_value, max_value = min(lieferanten_anteile), max(lieferanten_anteile)
# ------------------ Dateien ------------------
html_path = "heatmap_lieferanten_offline.html"
echarts_js = "echarts.min.js" # muss im selben Ordner liegen
# ------------------ Becharts.min.js lokal sicherstellen ------------------
def ensure_echarts_js(local_filename: str) -> bool:
if os.path.exists(local_filename) and os.path.getsize(local_filename) > 100_000:
return True # plausibel vorhanden
# Optionaler Download (falls Internet erlaubt). Überspringt still, wenn requests fehlt.
urls = [
"https://cdn.jsdelivr.net/npm/echarts@5/dist/echarts.min.js",
"https://unpkg.com/echarts@5/dist/echarts.min.js",
]
try:
import requests
for u in urls:
try:
print(f"Versuche Download: {u}")
r = requests.get(u, timeout=10)
if r.ok and r.text and len(r.content) > 100_000:
with open(local_filename, "wb") as f:
f.write(r.content)
print(f"✔ echarts.min.js gespeichert: {os.path.abspath(local_filename)}")
return True
except Exception:
pass
print("⚠ echarts.min.js konnte nicht heruntergeladen werden.")
except Exception:
print("Hinweis: 'requests' nicht verfügbar; Download wird übersprungen.")
return os.path.exists(local_filename) and os.path.getsize(local_filename) > 100_000
have_local_js = ensure_echarts_js(echarts_js)
# ------------------ HTML schreiben ------------------
option = {
"title": {"text": "Heatmap der Marktanteile der Lieferanten", "subtext": "Inntal AG", "left": "center", "top": "2%"},
"grid": {"top": "16%", "bottom": "22%", "left": "6%", "right": "3%"},
"tooltip": {
"trigger": "item",
"formatter": "function (p){ return p.name + '
Marktanteil: ' + p.value[2].toFixed(1) + ' %'; }"
},
"xAxis": {
"type": "category",
"name": "Lieferanten",
"nameGap": 28,
"axisLabel": {"rotate": 60, "fontSize": 10, "margin": 12},
"data": lieferanten
},
"yAxis": {
"type": "category",
"data": y_categories,
"axisLabel": {"show": False},
"axisLine": {"show": False},
"axisTick": {"show": False},
"splitLine": {"show": False}
},
"visualMap": {
"min": min_value, "max": max_value, "orient": "horizontal",
"left": "center", "bottom": "2%",
"itemWidth": 18, "itemHeight": 120,
"inRange": {"color": ["green","orange","red"]},
"text": ["hoch (%)","niedrig (%)"]
},
"series": [{
"name": "Marktanteil",
"type": "heatmap",
"data": data_triplets,
"label": {"show": False},
"emphasis": {"itemStyle": {"shadowBlur": 10, "shadowColor": "rgba(0,0,0,0.4)"}}
}]
}
html = f"""
ECharts Heatmap – Offline
"""
with open(html_path, "w", encoding="utf-8") as f:
f.write(html)
print("HTML gespeichert:", os.path.abspath(html_path))
if not have_local_js:
print("\n⚠ Wichtiger Hinweis:")
print(f"- Lege die Datei 'echarts.min.js' in denselben Ordner wie '{html_path}'.")
print("- Downloadquelle:")
print(" https://cdn.jsdelivr.net/npm/echarts@5/dist/echarts.min.js (Datei speichern als echarts.min.js)")
print(" Danach HTML neu öffnen.")
else:
# automatisch im Browser öffnen
webbrowser.open(f"file://{os.path.abspath(html_path)}", new=2)
# ------------------------------------------------------------------------