Special Collections - Rotunda plaster rosette - 20180301

3D scan data from a plaster rosette purported to have been taken from an original Jeffersonian era rosette from the UVA Rotunda; included in this dataset are the original scan OBJ files from the scanning of the top and bottom of the rosette plus exports from the comprehensive dataset created with Geomagic. One dataset was created using the Surface Merge algorithm for combining the 2 source datasets and the other is from the UltraHigh Definition Mesh Construction algorithm. The plaster color texture was not easily documented due to the white color of the original material which is difficult for laser scanners to read because of light reflection distortion. However the surface geometry was captured and nearly 1/3 of a millimeter in resolution.

本数据集收录了源自于弗吉尼亚大学罗顿达圆顶中杰斐逊时代原版玫瑰花饰的石膏玫瑰花饰的3D扫描数据；其中包含玫瑰花饰顶部和底部的原始扫描OBJ文件，以及使用Geomagic创建的全面数据集的导出文件。该数据集通过表面合并算法将两个源数据集相结合，另有一套数据来自超高清网格构建算法。由于原始材料的白色难以通过激光扫描器读取，因为光线反射会产生畸变，石膏的颜色纹理难以详细记录。然而，表面几何形状得以捕捉，分辨率高达近三分之一毫米。