A detailed comparison from both textual and technical angles shows that the Rigui Tufa (the Drawings and Methods of Sundials) by Didace de Pantoja and Sun Yuanhua contains basically the same content as both the first part of Lu Zhongyu's manuscript on sun
A detailed comparison from both textual and technical angles shows that the Rigui Tufa (the Drawings and Methods of Sundials) by Didace de Pantoja and Sun Yuanhua contains basically the same content as both the first part of Lu Zhongyu's manuscript on sun
摘要文本和技术两方面的细致比较表明，庞迪我和孙元化的《日晷图法》与陆仲玉日晷著作抄本的第一部分以及汤若望和朱确的同名著作内容基本相同，可以认为它们均出自庞迪我和孙元化的手笔。