#!/usr/bin/env python3
import sys
import re
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.collections import PolyCollection

# ---- Option A: paste your data directly here ----
RAW = """
0.010 , 0.000 , 0.000
0.009 , -0.000 , 0.000
0.009 , 0.001 , 0.000

-0.010 , 0.000 , 0.000
-0.010 , 0.001 , 0.000
-0.009 , 0.001 , 0.000

-0.010 , 0.000 , 0.000
-0.009 , 0.001 , 0.000
-0.009 , 0.000 , 0.000

0.010 , 0.000 , 0.000
0.009 , -0.000 , 0.000
0.010 , -0.000 , 0.000

-0.001 , 0.000 , 0.000
0.001 , 0.001 , 0.000
-0.001 , 0.001 , 0.000

0.003 , -0.000 , 0.000
0.001 , -0.000 , 0.000
0.003 , 0.001 , 0.000

-0.006 , 0.001 , 0.000
-0.006 , 0.000 , 0.000
-0.008 , 0.001 , 0.000

-0.001 , 0.000 , 0.000
0.001 , 0.001 , 0.000
0.001 , -0.000 , 0.000

-0.005 , 0.000 , 0.000
-0.003 , 0.000 , 0.000
-0.003 , 0.001 , 0.000

-0.005 , 0.000 , 0.000
-0.006 , 0.001 , 0.000
-0.006 , 0.000 , 0.000

-0.009 , 0.001 , 0.000
-0.009 , 0.000 , 0.000
-0.009 , 0.000 , 0.000

-0.005 , 0.000 , 0.000
-0.006 , 0.001 , 0.000
-0.005 , 0.001 , 0.000

-0.009 , 0.001 , 0.000
-0.009 , 0.001 , 0.000
-0.009 , 0.000 , 0.000

-0.008 , 0.001 , 0.000
-0.009 , 0.000 , 0.000
-0.008 , 0.000 , 0.000

-0.005 , 0.000 , 0.000
-0.003 , 0.001 , 0.000
-0.005 , 0.001 , 0.000

-0.009 , 0.001 , 0.000
-0.008 , 0.001 , 0.000
-0.009 , 0.000 , 0.000

-0.006 , 0.000 , 0.000
-0.008 , 0.001 , 0.000
-0.008 , 0.000 , 0.000

0.001 , 0.001 , 0.000
0.001 , -0.000 , 0.000
0.003 , 0.001 , 0.000

-0.001 , 0.001 , 0.000
-0.003 , 0.000 , 0.000
-0.003 , 0.001 , 0.000

0.008 , -0.000 , 0.000
0.006 , 0.001 , 0.000
0.008 , 0.001 , 0.000

0.009 , 0.001 , 0.000
0.008 , -0.000 , 0.000
0.008 , 0.001 , 0.000

0.006 , -0.000 , 0.000
0.005 , -0.000 , 0.000
0.005 , 0.001 , 0.000

0.005 , -0.000 , 0.000
0.005 , 0.001 , 0.000
0.003 , -0.000 , 0.000

0.009 , 0.001 , 0.000
0.009 , -0.000 , 0.000
0.009 , 0.001 , 0.000

-0.001 , 0.000 , 0.000
-0.001 , 0.001 , 0.000
-0.003 , 0.000 , 0.000

0.006 , -0.000 , 0.000
0.008 , -0.000 , 0.000
0.006 , 0.001 , 0.000

0.009 , -0.000 , 0.000
0.009 , 0.001 , 0.000
0.008 , -0.000 , 0.000

0.006 , -0.000 , 0.000
0.005 , 0.001 , 0.000
0.006 , 0.001 , 0.000

0.005 , 0.001 , 0.000
0.003 , -0.000 , 0.000
0.003 , 0.001 , 0.000

0.009 , -0.000 , 0.000
0.009 , 0.001 , 0.000
0.009 , -0.000 , 0.000
""".strip()

#!/usr/bin/env python3
import sys
import re
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.collections import PolyCollection



if len(sys.argv) > 1:
    with open(sys.argv[1], "r") as f:
        RAW = f.read().strip()

def parse_points(text):
    pts = []
    for line in text.splitlines():
        line = line.strip()
        if not line:
            continue
        nums = re.split(r"[,\s]+", line)
        nums = [n for n in nums if n]
        if len(nums) < 3:
            continue
        try:
            x, y, z = map(float, nums[:3])
            pts.append([x, y, z])
        except ValueError:
            pass
    return np.array(pts, dtype=float)

pts = parse_points(RAW)
if pts.size == 0 or pts.shape[0] % 3 != 0:
    raise SystemExit(f"Parsed {pts.shape[0]} points; not a multiple of 3.")

tris = pts.reshape(-1, 3, 3)
n_tris = tris.shape[0]
print(f"Number of triangles: {n_tris}")

# --- Check for duplicates ---
def canonical_triangle(tri):
    # round to 6 decimals to avoid tiny float noise
    verts = [tuple(np.round(v, 6)) for v in tri]
    # sort vertices lexicographically to remove ordering ambiguity
    verts_sorted = tuple(sorted(verts))
    return verts_sorted

seen = {}
duplicates = []
for i, tri in enumerate(tris):
    key = canonical_triangle(tri)
    if key in seen:
        duplicates.append((i, seen[key]))
    else:
        seen[key] = i

if duplicates:
    print(f"Found {len(duplicates)} duplicate triangles:")
    for i, j in duplicates:
        print(f"  Triangle {i} is a duplicate of {j}")
else:
    print("No duplicate triangles found.")

# --- Plot 2D view ---
xy_polys = [tri[:, :2] for tri in tris]
fig, ax = plt.subplots(figsize=(6, 6))
pc = PolyCollection(xy_polys, closed=True, linewidths=0.8, edgecolors="k", facecolors="none")
ax.add_collection(pc)

all_xy = np.vstack(xy_polys)
xmin, ymin = all_xy.min(axis=0)
xmax, ymax = all_xy.max(axis=0)
pad = 0.05 * max(xmax - xmin, ymax - ymin, 1e-12)
ax.set_xlim(xmin - pad, xmax + pad)
ax.set_ylim(ymin - pad, ymax + pad)
ax.set_aspect("equal", adjustable="box")
ax.set_title(f"Triangles (N = {n_tris})")

plt.show()