CAJ | 학술논문

敦煌莫高窟的穹窿形佛龛是在沙砾岩的岩体中掏出来的,然后在佛龛中进行雕塑和绘画。由于当时的技术不够发达,佛龛的曲面有大量人为因素的存在,造成不同的地方曲率不同。为了在平面上显示立体细节,需要将穹隆形佛龛展开在二维的图纸上,本文提出用断面法解决佛龛展开的问题,在三维点云数据上制作横、纵断面,绘制平面图,提高了曲面展开为平面的精度（即提高了平面表达曲面的精度）,为曲面测量提供了新的解决办法。
돈황막고굴적궁륭형불감시재사력암적암체중도출래적,연후재불감중진행조소화회화。유우당시적기술불구발체,불감적곡면유대량인위인소적존재,조성불동적지방곡솔불동。위료재평면상현시입체세절,수요장궁륭형불감전개재이유적도지상,본문제출용단면법해결불감전개적문제,재삼유점운수거상제작횡、종단면,회제평면도,제고료곡면전개위평면적정도（즉제고료평면표체곡면적정도）,위곡면측량제공료신적해결판법。
The arched niches of the Mogao Grottoes at Dunhuang were first chiseled out of gravel rock walls. Then paintings and sculptures were created inside them. The curvature of the surface varied in different places because of the limitations of then current technology. To display its details on a surface, the surface of the arched niche should be unfolded onto a drawing. This paper presents a higher-resolution approach to this problem by basing the floor plan and the cross sections on point cloud data, which improves the accuracy of the unfolded surface.