| With the development of social economy and the promotion of urbanization in our country,great changes have taken place in the appearance of rural areas.Under the influence of urban elements,the original style of the village is disappearing.Guizhou Province is located in the southwest plateau mountain area,the territory of many traditional villages,and most of them belong to mountain villages.In the face of the impact of tourism on the countryside of Guizhou Province in the future,protecting and inheriting the style and appearance of mountain villages will become one of the key points of rural construction.At present,in the practice of village planning and construction,planners focus on historical monuments and intangible cultural heritage,preserve the old village and build a new village,but ignore the importance of the macrospatial form of the village.The organic,rich traditional spatial texture is destroyed,the spatial morphological characteristics are lost,and the traditional feature inheritance choroid is broken.Therefore,taking Dong nationality village in southeast Guizhou as the research object,based on the technical method of spatial texture parametrization,this paper explores the inherent law of its spatial morphological characteristics,and puts forward the application strategy at the practical level of planning and design.In order to protect and inherit the traditional features of mountain villages,the main research results and conclusions of this paper are as follows:(1)According to the investigation of 25 Dong villages in southeastern Guizhou,this paper analyzes the scale,location,layout,the number of main buildings,the continuity of plane shape and the distance from township to township.Through summing up,the spatial form of Dong nationality village in southeast Guizhou is divided into three types: hillside slope type,intermountain valley type and valley flat dam type,and its spatial type characteristics are closely related to the topographic environment in which it is located.This paper also analyzes the problems in the spatial form and style continuation of Dong villages,and puts forward the method of spatial texture parametrization to solve the above problems.This paper reviews the existing spatial texture parametric technology,points out that its adaptability to mountain villages is not good,and puts forward three optimization measures according to the characteristics of spatial types of Dong villages:(1)increasing the characteristic parameters of texture analysis;(2)optimizing the technique of texture reconstruction and increasing the evaluation index of vertical texture.(2)According to the requirements of parameter technology and the actual situation of Dong village,Tang’an Village,Xiao Huang Village and Gao Yin Village are selected as typical cases.Combined with the characteristics of spatial elements of Dong village,the boundary extraction of existing spatial texture parametric technology,road texture optimization preprocessing,block texture optimization preprocessing and so on are improved.According to the optimized characteristic parameter set,the road spatial texture,plot spatial texture and architectural spatial texture of the case village are quantitatively analyzed,and the characteristic parameter values of three village types are extracted.Based on the basic data and feature parameters,the differences of spatial texture characteristics of case villages under topographic conditions are analyzed.The results show that the style and features of Dong villages should be classified and guided.(3)According to the current standard of rural construction planning and design,combined with the organizational structure and morphological characteristics of spatial texture of Dong village,the extracted feature parameters are selected and optimized.Combined with the spatial features of Dong village,the logical model of CGA programming language is established.The CGA file and feature parameters are replaced into the Cityengine software platform,and the spatial quality model is generated to simulate and invert the spatial texture of the case village.From the European geometry,analysis theory,spatial syntax and other theoretical methods to study the spatial form,the quantitative index is selected,the evaluation system is constructed,and the similarity evaluation of the spatial texture and spatial quality model of the original village is carried out.The evaluation results show that the spatial quality model constructed by the optimized characteristic parameter value has a high spatial texture similarity with the original village space,and the optimized characteristic parameter value can effectively reflect the spatial texture characteristics of the case village.Secondly,the optimized characteristic parameters and their related research results are transformed into the system of "Technical guidelines for Village style Planning and Design in Guizhou Province" to form the style guidance to guide the planning and design of Dong villages in southeastern Guizhou.Taking Gongzhai Village as an empirical case,this paper discusses the application ways and methods of style guidance combined with parametric technology in planning and design practice.The results show that this method can effectively solve the problem of incomplete continuation of traditional features in the construction and development of Dong villages. |
