It consists of three parts, they are : the theoretical base of spatial model-----theory of " tourism destination zoning ", basic prescribe of the spatial model, the main indexes that can fix the spatial bounds of tourism vacation belt around city 3第三章为环城市旅游度假带空间模式的基本规定,由空间模式的理论依据??“旅游目的地地带”理论、空间模式的基本规定、确定环城市旅游度假带空间范围的主要指标三部分组成。
It consists of three parts, they are : the theoretical base of spatial model-----theory of " tourism destination zoning ", basic prescribe of the spatial model, the main indexes that can fix the spatial bounds of tourism vacation belt around city 3第三章为环城市旅游度假带空间模式的基本规定,由空间模式的理论依据??“旅游目的地地带”理论、空间模式的基本规定、确定环城市旅游度假带空间范围的主要指标三部分组成。
The same frame is analyzed as two different spatial models ( one suppose stiff floor, the other elastic fioor ) under static and dynamic loading . from the results, the difference between the response of the frame with stiff floor and elastic floor can be found 空间框架结构的分析,按刚性楼板和弹性楼板两种假定进行计算,计算结果表明,考虑楼板弹性变形的空间框架在静力和动力作用下的特性与刚性楼板的结构有一定的差异。
This system can accomplish effectively many functions through computer such as field terrane-surveying of geology catalog, drawing tectonic lines, building spatial model based on digital image, fast querying of terrane-attribute and figure database, cartography through cad technology and so on 此系统有效实现了在计算机上完成地质编录的外业产状量测,构造线素描,普通影像的空间建模,岩层产状属性、图像数据库快速查询及cad成图等等功能。
The main researches are the following : on the basis of . in-depth understanding of space-time concepts and change types, analyzing existing temporal conceptual models, a event-based temporal model and a process-based temporal model have been developed . combining the two temporal models with field-based spatial model and object-based spatial model directly leads to four spatiotemporal conceptual models, which are field-event spatiotemporal conceptual model, field-process spatiotemporal conceptual model, object-event spatiotemporal conceptual model, and object-process spatiotemporal conceptual model 在讨论了各种时空变化类型后,论文对已有时间概念模型进行了分析,提出时空数据建模的基本目标是表达时空变化,并就此提出根据表达离散变化和连续变化的需要,时间概念模型可分为基于事件和基于过程的模型,并结合基于场的和基于对象的空间概念模型,提出时空概念模型可划分为四种:场事件时空概念模型,场过程时空概念模型,对象事件时空概念模型,对象过程时空概念模型。
The main researches are the following : on the basis of . in-depth understanding of space-time concepts and change types, analyzing existing temporal conceptual models, a event-based temporal model and a process-based temporal model have been developed . combining the two temporal models with field-based spatial model and object-based spatial model directly leads to four spatiotemporal conceptual models, which are field-event spatiotemporal conceptual model, field-process spatiotemporal conceptual model, object-event spatiotemporal conceptual model, and object-process spatiotemporal conceptual model 在讨论了各种时空变化类型后,论文对已有时间概念模型进行了分析,提出时空数据建模的基本目标是表达时空变化,并就此提出根据表达离散变化和连续变化的需要,时间概念模型可分为基于事件和基于过程的模型,并结合基于场的和基于对象的空间概念模型,提出时空概念模型可划分为四种:场事件时空概念模型,场过程时空概念模型,对象事件时空概念模型,对象过程时空概念模型。
In this study, the model emphasizes particularly on time series of geological entity and at the same time it realizes the integration of the spatial model and the attributive model by integrating complicated spatial and attributive character of forest resources . program is realized by matlab . the ann toolbox of matlab established many tool functions based on ann theory 本项研究中,基于gis的神经网络预测模型主要侧重的是地理实体数量时间结构序列,模型结合森林资源复杂的空间和属性特征,不仅使用了gis关系数据库中的属性时间序列值,同时也使用了一定的空间模型,实现了空间模型与属性模型的有效结z、口0在程序的实现上采用m八tlab开发环境,其中的神经网络工具箱以人工神经网络理论为基础,构造了网络分析和设计的许多工具函数。
Research result shows that the object-oriented geographic spatial model has stronger representative ability, is easier understood and accepted; using the concept of geometric data type unify the process method of attribute and spatial data, and simplify entity query and analyses . the topologic relations between entities, which are not been stored in explicit formulation in the model, can be achieved through collective operation of geometric object's hypergraph model . compared with traditional his, the query and analyses ability of which based on new model are stronger 研究结果表明,面向对象的地理空间模型具有更强的表现能力,并且容易被理解和接受;采用几何数据类型的概念,可以使对非空间数据和空间数据的处理方法相统一,而且会使对实体的各种属性数据(包括空间属性)的查询和分析模型更加简单;对于面向对象模型中不显式表示的地理实体间的空间拓扑关系,可以利用实体的几何对象的超图模型间的集合运算来求得;基于面向对象地理空间模型的实体查询和分析,也比基于传统gis数据库查询和分析具有强得多的功能。
And hbds model is extended to hoom model . hoom is an objected-oriented integrated spatial model, which integrated geometric model, geographical feature model, geographical representation model, spatial calculation model and temporal model that based on hypergraph model . a normal object-oriented multi-resolution model is proposed to manage integrated multi-resolution spatial data that is dlg and dem data 这两类空间数据的建模方法存在较大的差异,第一类数据的建模是通过特征模型和超图对象模型实现的,第二类数据的建模是通过对自适应规则三角形和不规则三角形的简化与细化算法的研究实现的。
Furthermore, the paper has, with basic theories and principles, emphasized forming ideal spatial models and exploring their feasibility after comparing various concepts, forms and technical know-how to match the local characteristics . hopefully, with some primary design trials, the paper will be of some help in making sustainable development strategy for the inhabitancy environment of 在对可持续发展的基本概念和理论,以及区域住居的可持续发展原则进行把握的基础上,根据区域特征,比较各种方式与技术的优劣,努力构筑理想的空间形态模型,探索适宜性发展途径,并对部分构想进行了初步的尝试。