Spatial overlay is an important model of spatial analysis in GIS.
空间叠加模型是地理信息系统（GIS）中重要的空间分析模型。
Methods employed include spatial analysis in GIS, hierarchy analysis, correlation analysis.
研究方法：GIS空间分析法、层次分析法、相关性分析法。
Overlap analysis is a widely used spatial operation for the needs of spatial analysis in GIS.
叠置分析是GIS进行空间分析时常用的一种空间操作。
Region is one basic unit of spatial analysis in GIS applications, which is a kind of entity existing widely in many fields such as environment science, land information science and so on.
区域是GIS空间分析的基本单元。它是环境科学、土壤科学等领域中广泛存在的一类地理实体。
By using graphic editor function and spatial analysis faculty of GIS, various especially function of graphic editor and area statistic for land-use operation are provided in this system.
系统采用GIS的图形编辑功能和空间分析功能，提供了多种规划特色的图形编辑功能和土地管理中专用的面积统计功能。
In particular, since the new century come, the GIS theory has ripened relatively, and becomes the major tool of analysis of spatial information gradually.
特别是进入新世纪以来，GIS理论已较为成熟，逐渐成为空间信息分析的主要工具。
Objectives To perform GIS spatial analysis on malaria transmission patterns in Jiangsu after setting up a malaria database and developing GIS model of malaria transmission in Jiangsu province.
目的建立江苏省疟疾地理信息系统(GIS)数据库和疟疾流行GIS模型，对江苏省的疟疾流行区进行空间分析。
Geographical Information System (GIS) with the functions of spatial analysis and management of space data is promising in mineral resourxce prognosis.
地理信息系统空间数据管理及空间分析功能使其在找矿预测中有着广阔的应用前景。
It is essential to the spatial raster data structure of GIS; in fact, all spatial analysis about raster data is based on the digital topology.
数字拓扑主要研究栅格空间中离散几何对象的拓扑性质，这些性质在GIS空间分析和栅格数据处理中非常重要。
The system was provided with function of workspace, data and map management, object operation, spatial query and analysis in the environment of GIS.
该系统具有GIS工作空间管理功能、数据管理功能、地图管理功能、对象操作功能、查询及空间分析功能；
The water yield property of karst groundwater in Litang region of Guangxi Province was evaluated quantitatively, combined spatial analysis of GIS, geostatistics method and nonlinear model.
本文将GIS空间分析技术、地质统计学方法和非线性模型相结合，以广西黎塘地区为研究区，定量评价了岩溶地下水富水性。
GIS spatial analysis plays the important role in ore forming prediction using multi-informational synthetic analysis.
GIS空间分析在区域地质多源信息综合分析中，具有十分重要的作用。
GIS is an important analysis and application tool in earth science, which is based on contemporary geography and spatial information science.
GIS是现代地理科学与空间信息科学相结合的产物，是现代地学领域十分重要的一门分析和应用工具。
Spatial overlay is one of the most important spatial analysis functions in the Geographic Information System, and its efficiency will directly influence the whole function of GIS.
空间叠加是GIS系统必不可少的空间分析功能之一，空间叠加分析效率的高低直接影响到GIS整体功能的发挥。
GIS played an important role in this field by its good function of multi-source data integration, spatial analysis and decision-aiding.
GIS提供的多源数据集成能力、强大的空间分析能力和辅助决策能力在公共安全的预警预报、监测、灾情评估中发挥了重大作用。
Besides, the system function expansion is strong. If necessary, spatial analysis functions in GIS can also be introduced to this system in further study.
而且系统功能扩展能力较强，地理信息系统具有的空间分析等功能，都可以根据需要在后续研究中引入到本系统中。
The paper, by the means of the spatial analysis function of GIS, makes a quantitative research on the stage of geomorphologic evolution in Bajiang drainage basin.
借助于GIS的空间分析功能，对路南石林巴江流域的地貌演化阶段进行了定量研究。
Remote sensing supplies continuous information sources to environment surveying and monitoring in a large region. GIS is a powerful tool to management and analysis spatial data.
遥感技术为大范围的环境调查和监测提供了时间和空间上连续覆盖的信息源，GIS技术为空间数据的管理和分析提供了有力的工具。
But in the actual practice, people realize that the application of GIS is in a lower level in which the use major in data management and special mapping, and lees in spatial analysis.
但是在实践当中，人们普遍感到，地理信息系统的应用还处在一个较低的层次，主要用于数据管理和专题制图方面，而空间分析功能发挥的较少。
In the geospatial data processing, GIS spatial analysis is the theoretic and technical basis for analyzing, simulating, predicting and regulating the spatial processes.
地理空间数据GIS的处理中，空间分析是其分析、模拟、预测和调控过程的基础理论和技术。
For the sake of realizing some special functions in spatial analysis of GIS, it is necessary to covert irregular vector polygon into regular grid.
在实际的GIS空间分析过程中，为了更加简便快捷的实现某些特定的空间分析功能，常常需要将不规则的矢量多边形区域转化为规则的格网区域。
In normal application of a GIS buffer zone analysis, we always need to pick an object in that specific spatial area.
在一般GIS环域分析的应用中，成果在于如何利用环域成果进行空间上的选取操作。
GIS spatial Analysis is widely adopted in the research of land use change, especially in the spatial research of land use change.
土地利用变化研究尤其是空间变化研究，离不开GIS的空间分析方法。
In this paper, after analysis of the spatial and temporal properties of GIS, a semantic definition of spatiotemporal topological relationships has been suggested.
本文在分析GIS的时空特性后，给出了一个语义层时空拓扑关系定义。
For three-dimensional spatial information of deposits in the prediction of buried ore bodies at large-scale, 2d GIS can not represent and analysis very well.
传统的二维gis只能表达面上的信息，对于大比例尺下的隐伏矿体预测中矿床的三维空间信息往往不能很自然地表达与分析。
This paper analyzed the advantages of using GIS, and expounded its supporting functions in spatial location selection. Then, it made a concrete analysis of the spatial location selection methods.
文章分析了利用GIS进行空间选址的优点，阐述了GIS对空间选址的支持作用，并且对空间选址的方法进行了具体分析。
By using the GIS spatial analysis as a tool, we analyze the spatial distribution of 110 Star Hotels in Wuhan City.
以武汉市的110家星级饭店为研究对象，运用GIS空间分析工具，分析和探讨了其空间布局特征和规律。
In the database design, the farming GIS display of data management, analysis and result is integrated when farming spatial-data, attribute-data and expert system are introduced.
在数据库的设计中，把农田空间数据、属性数据、分析模型和专家系统有机地结合在一起，使数据的管理、分析和结果的显示一体化。
Assessment on potentiality of the poly-metallic mineral resources in Yemaquan Area, Eastern Kunlun was performed, combining weights-of-evidence model with GIS spatial analysis technology.
应用基于证据权模型，结合GIS空间分析技术评价东昆仑野马泉地区多金属矿产资源潜力。
DEM takes an important part in spatial data analysis and modeling, which is the heart of GIS.
空间数据分析和建模是地理信息系统的核心，DEM是空间数据的重要内容。
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