A New Reconstruction Method for 3D Buildings from 2D Vector Floor Plan

Abstract

This paper proposes a method to analyze the geometry and semantic information of 2D vector floor plans, and reconstruct the corresponding 3D building models automatically. First, the Shape-opening graph (SOG) is introduced to recognize Structural Components (SCs) and describe the relationships between SCs and openings which are architectural components separating spaces. A priority principle algorithm is developed to replace openings with wall equivalent lines for the purpose of later loop searching. Then, we present an odd-even-based edge breaking algorithm to preprocess wall lines in order to search loops directly and exactly. After that, all the interior-space contours, which are in fact rooms or aisles, and exterior boundary contour can be obtained. With the hierarchical component tree presented, the topological relations of the whole building can be obtained. Finally, 3D models can be generated after extruding loops to the wall height and cutting openings from the walls. A drawing with several floor plans can also be reconstructed to multi-floor building after aligning their dimensions. Moreover, the intermediate result after analyzing the 2D floor plan can be the input of other architectural software to generate 3D models.

Indoor3D

“…[Lewis and Séquin 1998] developed a semi-automatic system to create 3D building models from CAD plans. [Zhu et al 2014] proposed an automatic algorithm to generate 3D buildings from 2D vector floor plans by recognizing the specific elements in the them.…”

Building Information Model: A Graphical User Interface to Generate a Three-Dimensional Building

“…This allows the engineers to understand and simulate the structures even before the construction initiates. Junang and team had developed software to reconstruct 3D buildings from 2D vector floor plan [4][5]. But till now there has not been enough research on building a BIM tool for a common person who can see complete three dimensional building from a simple input of area and location of the built area.…”

“…Zhu had provided a detailed review on techniques which were used to convert 2D floor plans into 3D buildings. In their paper, they have discussed a new reconstruction method for 3D building from 2D vector plans [10]. From 2D drawings it is difficult to visualize the space management and BIM helps to eliminate the inappropriate designs.…”

Extraction of Structural and Semantic Data from 2D Floor Plans for Interactive and Immersive VR Real Estate Exploration

“…In their example, the resulting plan only consists of line segments of the type wall. Like others [8,11,12] they try first to detect parallel line-segment pairs which are analyzed with respect to intersections of different shapes (L, T, X, I). This helps to eliminate false positives and to create a so-called Shape-Opening Graph [10], wherein each case an edge-set is added to the graph structure.…”