【摘要】 隐式曲面没有参数域的概念 ,故对其裁剪问题的研究 ,很少有人问津 .提出了一种隐式裁剪曲面的造型和绘制方法 :先把投影平面变换到 xy平面 ,将该 xy平面作正交化网格剖分 ,由参数表示或隐式表示的裁剪曲线在该 xy平面定义裁剪区域 ,再把裁剪后留下的区域内的网格投影到隐式曲面上 ,从而实现了隐式裁剪曲面的多边形化绘制 .更多还原

【Abstract】 Implicit trimmed surfaces are rarely studied since they have no parametric domain. A method which is related to modeling and rendering of implicit trimmed surfaces is presented in this paper. First the projection plane is transformed into xy-plane in which the regular grids are partitioned and trimmed areas are defined by a parametric/implicit curve, then the grids left after trimming are projected onto the implicit surfaces so as to realize polygonization of the implicit trimmed surfaces.更多还原