| With the fast development and widely application of3D simulation technique,the demand of virtual scene simulation is increasing rapidly. Traditionally, theater halldesigners often analysis and design2D graphic or cross-section of the whole scene byCAD software. Designers can only draw the information of one individual2D view.One cannot have a whole impression before the scene is built. However, when it isbuilt, the modification of the whole design will be inconvenient or even impossible,which, in consequence, leads to a paradox that many architectural designs conformingwith the regulations turn out to be unreasonable. To deal with these disadvantages oftraditional method, we proposed a3D simulation based designing method in thispaper. In contrast to the traditional method, our method is more efficient, morevisualized and highly human interacted.In this paper, we proposed a3D simulation based hall sight analysis method. Inthis method, we utilized3D spatial segment intersection detection method tocalculate the sights of all seats in the hall, and classified them according to the sighteclipse rate. Thus we obtained an intuitive overall analysis result of the hall sightdesign. Based on the analysis result, we combined a space diagram method tooptimize the arrangement of hall seats according to the architectural designspecification. Then we got a local optimal sight-free arrangement plan. Moreover,referring to the traditional process and methods of hall design, we proposed anintelligent arrangement method by simulating this process. We can simulate thewhole complex process by simply input a few parameters. Based on the abovetheoretical basis, we developed a hall sight designing software, and use it toexperiment on several halls. The experiment results supported the feasibility andaccuracy of method proposed in this paper.The thought of linking theory to practice is throughout this paper. We applied3Dsimulation to practical problems, and proposed a3D simulation based sight designmethod. Our method contributes to improve the visual effects of halls, fast design, andensure the accuracy and rationality of the design. So there is important academicsignificance and application value. In the future, we will research on the realityimprovement of the virtual scene. |