本文提出一种全新的，可推广至一般二次曲面的旋转抛物面实时成象的等灰曲度线算法。
This paper presents a new algorithm for realtime generation of rotating paraboloid images, which can be extended into quadric surfaces.
同时它还能精确表示圆弧、椭圆弧等二次曲线，推广到空间即可以表示旋转曲面。
Also the curves can express the circle arc and ellipse arc and can construct rotate surfaces.
非球面透镜能够克服球面透镜的缺点，具有很高的实用价值，故对旋转二次曲面及其透镜成像质量的研究将有重要意义。
Non spherical surface lens can get rid of the spherical surface lens' shortcoming and will be highly valuable, so the study of image quality of rotational conicoid and its lens is meaningful.
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