bezier算法

A. 璐濆炲皵镟茬嚎镄勫嚑涓鐭ヨ瘑镣

1銆 璐濆炲皵镟茬嚎锛圔茅zier curve锛 鍙堣绉颁负璐濆吂镟茬嚎鎴栬礉娴庡焹镟茬嚎锛屾槸搴旂敤浜庝簩缁村浘褰㈠簲鐢ㄧ▼搴忕殑鏁板︽洸绾匡纴瀹幂殑鏁板﹀熀纭鏄 浼鎭╂柉鍧﹀氶”寮 锛圔ernstein polynomial锛宻ince 1912锛夛纴鍦1959骞存硶锲芥暟瀛﹀禤aul de Casteljau鎻愬嚭浜嗘暟鍊肩ǔ瀹氱殑 de Casteljau绠楁硶 锛屽紑濮嬭礉濉炲皵镟茬嚎镄勫浘褰㈠寲搴旂敤镰旂┒銆

2銆 璐濆炲皵镟茬嚎 镄勫悕绉版潵婧愪簬涓浣嶅氨镵屼簬闆疯虹殑 娉曞浗宸ョ▼甯圥ierre B茅zier 锛屼粬鍦1962骞村紑濮嫔硅礉濉炲皵镟茬嚎锅氢简骞挎硾镄勫ｄ紶锛屼粬浣跨敤杩欑嶅彧闇瑕佸緢灏戠殑鎺у埗镣瑰氨鑳界敓鎴愬嶆潅骞虫粦镟茬嚎镄勬柟娉曟潵杩涜屾苯杞﹁溅浣撶殑宸ヤ笟璁捐°

3銆 Bezier镟茬嚎镄勯掓帹绠楁硶"de Casteljau绠楁硶":

4銆 瀹氱偣 锛氭洸绾跨殑 璧峰嬬偣 鍜 缁撴潫镣 缁熺О涓 瀹氱偣 銆