Simulation and Evaluation Method of Landscape Design Scheme Based on OPENGL Virtual Reality Platform

This article introduces the main steps of landscape design using CAD (Computer aided design) and VR (Virtual reality) technology, including modeling, drawing and post-processing, and expounds the use of CAD and VR in landscape design. Based on this, this article puts forward a modeling method based on 3D model of CAD data, which provides support for simulation evaluation of landscape design scheme. This method adopts VC platform and combines OPENGL and Open Flight API to analyze and process CAD data. The concept level describes the concepts and entities in the real world, while the attribute level describes the attributes possessed by these concepts and entities. By combining these two levels, HDM can effectively describe the relationships between data and information at different levels in the real world. And the leaf information is established by the Billboard model. Finally, the effectiveness of the simulation evaluation method of landscape design scheme is verified by an engineering example. The simulation shows that the accuracy and efficiency of the algorithm are high, and the expected idea is achieved. This method simplifies the 3D model mesh and can write the model data into the industry standard Open Flight format. The research results can be used to automatically model and evaluate the VR visual system according to the existing CAD data. © 2024 U-turn Press LLC, http://www.cad-journal.net.