R-CCS Cafe 第218回 第2部

Research for urban hazards requires urban models that represent cities' structure and shape in numerical form. However, it takes a long time to create urban models consisting of buildings, foundations, and infrastructures like bridges, ports, and roads in an ordinary way. Therefore, it is indispensable to invent methods that automatically construct urban models from exiting data that is ill-structured. Computational Disaster Mitigation and Reduction Research Team developed Data Processing Platform (DPP) for such purpose. Using DPP, construction of a national-wide urban model and 3D model construction from engineering drawings are achieved.Dr. O-tani re-developed sets of programs for creating three dimensional urban model automatically. Those programs, namely Data Processing Platform (DPP) has been re-designed and implemented as Data Processing Platform Version 2 (DPP2). This program gives thematic elements on two dimensional computer aided design data (2D-CAD data) according to their levels of recognition, contexts of 2D-CAD data which come from arrangement of lines, figures and types of 2D-CAD data. After 2020 re-designing process, it has natural language interface to show the status of recognition. The programs utilize rule-base processes for recognizing elements on the drawings in order to adopting the contexts and levels of recognition. However, the programs also utilize other kinds of process for recognizing elements, then it is possible to develop each software for many kinds of drawings using division of programming the software.In the presentation, I will give several examples of utilization of DPP2.