192 lines
6.9 KiB
Python
Executable File
192 lines
6.9 KiB
Python
Executable File
#!/usr/bin/env python
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# ./cube2mayavi_edge_corner.py -i 050Li3PS4-050LiI_PS4_I_zero.cube 050Li3PS4-050LiI_PS4_I_corner.cube 050Li3PS4-050LiI_PS4_I_edge.cube 050Li3PS4-050LiI_PS4_I_three.cube -iso 1.2e-09
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import numpy as np
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import os
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from mayavi import mlab
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ang_borr = 0.5291772109217
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def read_cube(filename):
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"""
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.cubeファイルを読み込み、原子座標と3次元ボクセルデータを返す関数
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"""
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with open(filename, 'r') as f:
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# ヘッダーの読み飛ばし(最初の2行はコメント)
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f.readline()
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f.readline()
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# 3行目: 原子の数 と 原点座標
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line = f.readline().split()
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natoms = abs(int(line[0])) # 原子の数
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origin = np.array([float(x) for x in line[1:4]]) # 原点
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# 4-6行目: グリッドの分割数(N)とベクトル(X, Y, Z軸)
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line = f.readline().split()
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nx, x_vec = int(line[0]), np.array([float(x) for x in line[1:4]])
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line = f.readline().split()
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ny, y_vec = int(line[0]), np.array([float(x) for x in line[1:4]])
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line = f.readline().split()
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nz, z_vec = int(line[0]), np.array([float(x) for x in line[1:4]])
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# 原子座標の読み込み
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atoms = []
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for _ in range(natoms):
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line = f.readline().split()
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atoms.append([float(x) for x in line[2:5]])
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atoms = np.array(atoms)
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# ボクセルデータの読み込み
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data = []
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for line in f:
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data.extend([float(x) for x in line.split()])
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vol_data = np.array(data).reshape(nx, ny, nz)
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return vol_data, atoms, origin, (x_vec, y_vec, z_vec)
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def draw_radial_scale(max_dist=10.0, step=1.0, axis='x'):
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"""
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原点から動径方向に目盛り(定規)を描画する
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"""
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if axis == 'y':
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vec = np.array([0, 1, 0])
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tick_dir = np.array([0.2, 0, 0])
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elif axis == 'z':
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vec = np.array([0, 0, 1])
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tick_dir = np.array([0.2, 0, 0])
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else: # default x
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vec = np.array([1, 0, 0])
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tick_dir = np.array([0, 0, 0.2])
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# 1. メインの直線を引く
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end_point = vec * max_dist
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mlab.plot3d([0, end_point[0]], [0, end_point[1]], [0, end_point[2]],
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tube_radius=0.02, color=(0, 0, 0))
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# 2. 目盛りと数字を配置
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for r in np.arange(step, max_dist + step, step):
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pos = vec * r
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t_start = pos - tick_dir
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t_end = pos + tick_dir
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mlab.plot3d([t_start[0], t_end[0]],
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[t_start[1], t_end[1]],
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[t_start[2], t_end[2]],
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tube_radius=0.02, color=(0, 0, 0))
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text_pos = pos + tick_dir * 1.5
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mlab.text3d(text_pos[0], text_pos[1], text_pos[2],
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f"{int(r)}", scale=0.25, color=(0, 0, 0))
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def change_view(azimuth=30, elevation=60):
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mlab.view(azimuth=azimuth, elevation=elevation)
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def get_color_from_filename(filename):
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"""
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ファイル名から Edge, Corner などの判別を行い、RGBカラーを返す
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"""
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fname_lower = os.path.basename(filename).lower()
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if 'zero' in fname_lower:
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return (0.227, 0.373, 0.804) # 青色
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elif 'corner' in fname_lower:
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return (0.000, 0.733, 0.000) # 緑色
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elif 'edge' in fname_lower:
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return (0.850, 0.058, 0.058) # 赤色
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elif 'three' in fname_lower:
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return (0.943, 0.754, 0.000) # 黄色
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else:
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return (0.5, 0.5, 0.5) # 該当しない場合はグレー
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def visualize_cubes(filenames, iso_val=None, cutoff=8):
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"""
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複数のcubeファイルを読み込んで可視化する
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"""
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mlab.figure(bgcolor=(1, 1, 1), size=(800, 600))
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atoms_drawn = False
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for filename in filenames:
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print(f"Reading {filename}...")
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vol_data, atoms, origin, vectors = read_cube(filename)
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atoms = atoms * ang_borr
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origin_ang = origin * ang_borr
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dx = np.linalg.norm(vectors[0]) * ang_borr
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dy = np.linalg.norm(vectors[1]) * ang_borr
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dz = np.linalg.norm(vectors[2]) * ang_borr
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# iso_val が未指定の場合はデータから自動計算
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current_iso = iso_val
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if current_iso is None:
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current_iso = np.std(vol_data) * 2.0
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print(f" -> Plotting isosurface at value: +/- {current_iso:.4e}")
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# --- カットオフによるデータの球状マスク処理 ---
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if cutoff is not None:
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nx, ny, nz = vol_data.shape
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x = origin_ang[0] + np.arange(nx) * dx
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y = origin_ang[1] + np.arange(ny) * dy
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z = origin_ang[2] + np.arange(nz) * dz
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X, Y, Z = np.meshgrid(x, y, z, indexing='ij')
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R = np.sqrt(X**2 + Y**2 + Z**2)
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vol_data[R > cutoff] = 0.0
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print(f" -> max_value: {np.max(vol_data):.4e}, min_value: {np.min(vol_data):.4e}")
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# --- 確率密度 ---
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src_in = mlab.pipeline.scalar_field(vol_data)
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src_in.spacing = [dx, dy, dz]
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src_in.origin = origin_ang
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# ファイル名から色を取得
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color = get_color_from_filename(filename)
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# 等値面の描画
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mlab.pipeline.iso_surface(src_in, contours=[current_iso], opacity=0.3, color=color)
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# --- 原子の描画(最初の1回のみ実行) ---
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if not atoms_drawn:
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mlab.points3d(atoms[0, 0], atoms[0, 1], atoms[0, 2],
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scale_factor=0.8, color=(0.576, 0.439, 0.8), resolution=20)
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mlab.points3d(atoms[1:, 0], atoms[1:, 1], atoms[1:, 2],
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scale_factor=0.8, color=(1, 1, 0), resolution=20)
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# --- 結合の描画 ---
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p_coord = atoms[0]
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s_coords = atoms[1:]
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for s_coord in s_coords:
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mlab.plot3d([p_coord[0], s_coord[0]],
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[p_coord[1], s_coord[1]],
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[p_coord[2], s_coord[2]],
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tube_radius=0.1, color=(0.6, 0.6, 0.6), opacity=1.0)
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# 半径の基準となるうすい球の描画
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mlab.points3d(0, 0, 0, scale_factor=cutoff * 2,
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mode='sphere', color=(0, 0, 0), opacity=0.05, resolution=50)
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atoms_drawn = True
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# --- 実行部分 ---
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if __name__ == "__main__":
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import argparse
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description = """Visualizes multiple cube files with different colors based on their filenames."""
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par = argparse.ArgumentParser(description=description)
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# 複数ファイルを受け取れるように nargs="+" を設定(既存のまま)
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par.add_argument('-i', '--infiles', default=[], required=True, nargs="+",
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help='input cube files (e.g., *_I_*.cube)')
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par.add_argument('-iso', '--iso_val', required=False, type=float,
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help='Threshold for isosurface (しきい値)')
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args = par.parse_args()
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# 複数ファイルをリストとして渡す
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visualize_cubes(args.infiles, iso_val=args.iso_val)
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mlab.show()
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