A SCHEMA FOR EXTRACTION OF INDOOR PEDESTRIAN NAVIGATION GRID NETWORK FROM FLOOR PLANS
- 1School of Surveying Engineering, Henan University of Urban Construction, Postcode 467036, Pingdingshan, Henan, China
- 2Faculty of Urban and Environmental Science, Tianjin Normal University, Postcode 300387, Tianjin, China
Keywords: Indoor; pedestrian navigation grid; extraction; floor plan
Abstract. The requirement of the indoor navigation related tasks such emergency evacuation calls for efficient solutions for handling data sources. Therefore, the navigation grid extraction from existing floor plans draws attentions. To this, we have to thoroughly analyse the source data, such as Autocad dxf files. Then, we could establish a sounding navigation solution, which firstly complements the basic navigation rectangle boundaries, secondly subdivides these rectangles and finally generates accessible networks with these refined rectangles. Test files are introduced to validate the whole workflow and evaluate the solution performance. In conclusion, we have achieved the preliminary step of forming up accessible network from the navigation grids.