Material mapping processing method in urban rail engineering BIM model

• Main Authors: YANG BINGYE, ZHANG PENG, PANG YAXI, LIU ZHE, WANG ZHENGSONG, LIU CHANG, GUO JIANYONG, ZHANG ZHENDONG, ZHANG CHUNLEI, MA ZHENHAI
• Format: Patent
• Language: Chinese; English
• Published: 07.06.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention discloses a material mapping processing method in an urban rail engineering BIM model, and belongs to the technical field of material mapping processing, and the method comprises the steps: obtaining coordinate values of point locations of all to-be-mapped elements in the urban rail engineering BIM model and the area of the to-be-mapped elements; according to the coordinate values of the point locations of the to-be-mapped elements, determining the positions of all the to-be-mapped elements in the standard coordinate system; according to the coordinate values of the point positions of the to-be-mapped elements, the figure ratio of the to-be-mapped elements is obtained; obtaining a chartlet picture according to the figure ratio of the to-be-chartlet element; comparing the area of the three-dimensional model with the area of the chartlet picture corresponding to the to-be-chartlet element to obtain an area ratio; taking the smaller ratio in the figure ratio and the area ratio as a stretching ratio