Problems of surveying profile shapes of gothic architectural fragments

The quest for the secret of geometric design methods and proportioning strategies of medieval master builders dates back to the middle of the 19th century. The improvement of surveying technologies allows adapting the advantages of laser-based instruments and computer aided analysis to the observation of this subject of revolving relevance. The subject of the paper research is to present the analysis of medieval architectural details from a geometrical point of view. In the current status of the research the paper focuses on the methodological aspects of the surveying process of gothic architectural fragments.