Hakka Ancient Architecture 3D Modeling Method And Application Based On Component Model Library

Ancient Hakka architectures have produced and formed unique Hakka architectural styles in their unique geographical location and social environment,which can reflect the wisdom and elegance accumulated in technology and art for thousands of years.As the carrier of Hakka traditional culture,Hakka ancient buildings show the brilliant achievements created by Hakka people through thousands of years of hard struggle.However,Hakka ancient buildings are restricted and influenced by many factors,such as remote geographical location,slow local economic development,backward cultural and ideological traditions,and so on.As a result,Hakka ancient buildings are facing the risk of being seriously damaged or even apoptotic.The protection situation is very severe,and the three-dimensional reconstruction of Hakka ancient buildings becomes a very important and effective way to protect them.By analyzing and studying the structural characteristics of Hakka ancient buildings,this paper studies the three-dimensional modeling method of Hakka ancient buildings based on component model library,which provides theoretical basis and technical support for the three-dimensional modeling and digital protection of Hakka ancient buildings in the future.Firstly,it divides the components of Hakka ancient buildings.By analyzing the characteristics of Hakka ancient buildings and according to the similarities and differences of components among different ancient buildings in Hakka ancient buildings,the whole Hakka ancient buildings are divided into four types of components: step foundation,roof,decoration;on the basis of field investigation,each component type is gradually subdivided into several sub-components,until any Hakka ancient buildings can be divided by the components of Hakka ancient buildings.Combination.Secondly,the component model base of Hakka ancient buildings is established.Using CityEngine based on CGA rule language modeling method to build threedimensional models of Hakka ancient building components with shape rules,providing various selection of Hakka ancient building component styles by setting parameters;For irregular components,using 3DS Max fine modeling can make up for the shortcomings and shortcomings of CGA rule modeling.Thirdly,taking the ancient village of Egret as an example,the model base of Hakka ancient building components is applied.Summarize and optimize the modeling rules of various Hakka ancient building components,extract and reuse the CGA rule codes of similar parts under the same component type.Taking Egret Ancient Village as an example,by utilizing the characteristics of parametric modeling and applying the component model library of Hakka Ancient Architecture,the effect of flexible and realtime modification of Hakka Ancient Architecture Model can be achieved by changing the parameters set by the model,and the three-dimensional modeling of Hakka Ancient Architecture in Egret Ancient Village can be completed.Finally,the three-dimensional virtual platform of Egret Ancient Village is developed.Through ArcGIS Server,ArcGIS Online and other cloud service platforms,the model publishing factor service and scene service are integrated and developed by using HTML language based on.NET platform and ArcGIS for JavaScript API.The three-dimensional virtual platform of Egret Village is developed to display the threedimensional model of Egret Village Hakka Architecture and to promote and inherit the local Hakka culture.This paper establishes a three-dimensional modeling method and technical framework of Hakka ancient buildings based on component model library by partitioning the components of Hakka ancient buildings in detail.This modeling method makes the three-dimensional modeling of diversified Hakka ancient buildings more convenient and efficient,and can quickly complete the three-dimensional modeling of Hakka ancient buildings,providing a reference for the future threedimensional modeling of Hakka ancient buildings.The digital protection of Hakka ancient buildings and the promotion of Hakka culture have important practical value.