developed view of triumphal pillars Karlskirche, Vienna Austria

developed view of the two triumphal pillars of Karlskirche, Vienna Austria;first version with cylindrical unrolling of the whole pillar with one vertical cut;second version with...奥地利维也纳卡尔教堂（Karlskirche）的两根凯旋柱展开视图；第一版通过单次垂直剖切实现整柱的圆柱面展开效果；第二版则采用……