- 动机：
FC的画风-面部里比较了某些人物面部。其中比较人物面部特征时，经常出现类似下列的描述：- 前者左下颌骨末端稍窄于后者。
- 腮帮子略微凸。
- (脸部线条)更有棱角。
- 前者脸颊窄于后者。
本文尝试借助美容整形外科(Aesthetic Plastic Surgery)领域的一些方法和术语来描述这些差异，试图让描述更准确。
参考资料[1]里在人物面部正面和侧面定义了一些mark点，借助点、线之间的关系(距离、角度)来研究"美女脸的特征"。虽然本文只整理FC的角色的正面，但这里罗列了[1]里关于正面和侧面的mark点和术语，目的是方便查找和比较。
- 面部mark点-正面：
图1(FIGURE 3 in [1])
图1中的mark点的注解和中文翻译:
- 1 and 2: pupil (p), 瞳孔
- 3: trichion (tr), 发际中点
- 4: glabella (g), 眉间点
- 5: sellion (se), 鼻梁点
- 6 and 7: alare (al), 鼻翼点
- 8: subnasale (sn), 鼻下点
- 9: labiale superius (ls), 上唇中点
- 10: stomion (sto), 口裂点
- 11: labiale inferius (li), 下唇中点
- 12 and 13: cheilion (ch), 口角点
- 14: menton (m), 颏下点/颔下点 (gnathion (gn)[3])
- 15 and 16: endocanthion (en), 眼内角点
- 17 and 18: palpebrale superius (ps), 上眼睑点？- 19 and 20: palpebrale inferius (pi), 下眼睑点？- 21 and 22: exocanthion (ex), 眼外角点？
- 23 and 24: highest point of eyebrow (Hb), 眉高点？- 25 and 26: most medial point of eyebrow (Mb), 眉内侧点？
- 27 and 28: zygion (zy), 颧点
- 29 and 30: points of mandible angle (ang)下颌骨角点, that is, points of the outline of the mandible that meet with the horizontally extending line of the two cheilions口角.("口角点的水平连线"与脸颊的交点)
- 31 and 32: lateral gonion (latgo)下颌骨后下点 tangential points with the outline of the mandible; the tangential line should be parallel to the ipsilateral同侧的 line of gn-?zy, (详见[3] Figure 1 )(注："latgo点处的切线与gn-?zy平行"等同于"latgo点距离线段gn-?zy最远"，即用latgo点描述腮帮子的凸起程度。之所以用平行线的方式来定义latgo点，可能是因为用平行线的方法更容易找到latgo点。)
- 33 and 34: points of the outline of both cheeks (chk)脸颊, which meet the transverse extending line of the subnasale, ("鼻下点的水平线"与脸颊的交点)
- 35 and 36: the points of the chin下巴/颏 contour line at the anterior-?lateral chin, which meet the vertical extending line from each pupil. (al-?chin); ("瞳孔铅垂线"与脸颊的交点)
- Except for 27 and 28, the facial points designated on facial contour lines 23 to 36 were not usually defined as verified neoclassical canon; only I defined the landmarks. The arbitrary points help us to understand the actual differences in face shape between Caucasians and Asians
- 面部mark点-侧面：
图2(FIGURE4 in [1])
图2中的mark点的注解（即中文翻译）:
- Tragion (t) 耳屏点: the most anterior portion of the supratragal notch),
- glabella (g) 眉间点: the most prominent or anterior point of the forehead between the eyebrows,
- sellion (se) 鼻梁点: the most concave point in the tissue overlying the area of the frontonasal suture,
- pronasale (prn) 鼻尖: the most prominent or anterior projection point of the nose,
- columella breakpoint (c) (鼻)小柱断点 the highest point of the columella or breakpoint of Daniel,
- subnasale (sn) 鼻下点: the junctional point of the columella and the upper cutaneous lip, alar curvature point or alar
crest point (ac) 波峰点: the most lateral point in the curved base line of each ala, indicating the facial insertion of the nasal wing base, 鼻翼根与面部连接处的曲线的最外侧点
- labiale superius (ls) 上唇中点: the mucocutaneous junction and vermilion border of the upper lip,
- labiale inferius (li) 下唇中点: the mucocutaneous junction and vermilion border of the lower lip,
- cheilion (ch), 口角点
- pogonion (pg) 颏前点: the most anterior point of the soft-?tissue chin,
- distant chin (dc): the farthest point from the fiducial t. 下巴上距离t点最远的点。
- menton (m): the most inferior portion of the anterior chin. Points m1, m2, m3, and dc were not usually defined in articles; only I defined the landmarks. 颏下点/颔下点 (gnathion (gn)[3])。
The arbitrary points help us to understand the actual differences in the profile faces of Caucasians and Asians.
- m1: the point where the mandibular下颌骨 contour line meets the horizontal line that extends from the fiducial ls,
- m2: the intersecting line of the mandibular contour with the horizontally extended line from the fiducial li;
- m3: the intersecting line of the mandibular contour with the horizontally extended line from the fiducial pg; dc was defined
