This paper proposes a web map system for drawing an arbitrary travel route using a mouse-sensitive following path suggestion. The interaction model of the system allows users to intuitively understand the sequence of ...This paper proposes a web map system for drawing an arbitrary travel route using a mouse-sensitive following path suggestion. The interaction model of the system allows users to intuitively understand the sequence of user actions needed to draw a conceived route and reduces the number of user actions required. Moreover, the system allows users to understand at a glance several drawing alternatives (static suggestion) and also consider a particular drawing alternative (dynamic suggestion) without making any commitment. The proposed architecture of the system reduces the influence caused by communication delay between a map server and a web client by delivering in advance road network data from a map server to a web client. Experimental evaluations on a prototype we developed demonstrated that the proposed system enables users to draw arbitrary routes within noticeably less clicks, in less time, and with less stress than previous systems.展开更多
OGC Web Map Service is one kind of OGC Portrayal Services belongs to OGC Web Service model and it provides multi\|platform interoperability of spatial data set. This paper presents a method for implementing OGC Web Ma...OGC Web Map Service is one kind of OGC Portrayal Services belongs to OGC Web Service model and it provides multi\|platform interoperability of spatial data set. This paper presents a method for implementing OGC Web Map Service based on Web Service technique and introduces the detailed process.展开更多
There is a growing need for web-based geographic information systems for easy and fast dissemination, sharing, displaying and processing of spatial information. The tremendous growth in the use of web and open-source ...There is a growing need for web-based geographic information systems for easy and fast dissemination, sharing, displaying and processing of spatial information. The tremendous growth in the use of web and open-source geospatial resources has sparked development of web-based spatial applications to address multidisciplinary issues with spatial dimensions. This paper presents the integration of open-source geospatial tools and web technology to visualize and interact with spatial data using web browser. The goal of this paper is to implement a prototype system for web-based mapping by providing step-by-step instructions in order to encourage the eager developers and interested readers to publish their maps on the web with no prior technical experience in map servers. The implementation of mapping prototype shows the utilization of open-source geospatial tools which results in a rapid implementation with minimal or no software input cost.展开更多
提出一套在Google地图上实施交互式制图的方案.该方案以Google Maps API V3和KML为基础,借助Ajax技术,有效解决了在Google地图上实时交互式采集、绘制、存储、显示、选择、编辑、查询多要素地理信息等基本问题,为建立基于Google地图的We...提出一套在Google地图上实施交互式制图的方案.该方案以Google Maps API V3和KML为基础,借助Ajax技术,有效解决了在Google地图上实时交互式采集、绘制、存储、显示、选择、编辑、查询多要素地理信息等基本问题,为建立基于Google地图的WebGIS奠定基础.所得数据也可下载到客户端,作为其他应用的基础数据.展开更多
目的:利用网络上已建立的空间数据资源和G IS应用,构建自己的W eb G IS系统.方法:GML作为数据交换标准和OGC G IS W eb服务实现G IS互操作.结果:利用deegree服务器,建立了一个基于WMS和WFS的W eb G IS系统.结论:基于GML和G ISW eb服务的...目的:利用网络上已建立的空间数据资源和G IS应用,构建自己的W eb G IS系统.方法:GML作为数据交换标准和OGC G IS W eb服务实现G IS互操作.结果:利用deegree服务器,建立了一个基于WMS和WFS的W eb G IS系统.结论:基于GML和G ISW eb服务的W eb G IS实现了空间数据的无缝集成和G IS功能上的互操作.展开更多
文摘This paper proposes a web map system for drawing an arbitrary travel route using a mouse-sensitive following path suggestion. The interaction model of the system allows users to intuitively understand the sequence of user actions needed to draw a conceived route and reduces the number of user actions required. Moreover, the system allows users to understand at a glance several drawing alternatives (static suggestion) and also consider a particular drawing alternative (dynamic suggestion) without making any commitment. The proposed architecture of the system reduces the influence caused by communication delay between a map server and a web client by delivering in advance road network data from a map server to a web client. Experimental evaluations on a prototype we developed demonstrated that the proposed system enables users to draw arbitrary routes within noticeably less clicks, in less time, and with less stress than previous systems.
文摘OGC Web Map Service is one kind of OGC Portrayal Services belongs to OGC Web Service model and it provides multi\|platform interoperability of spatial data set. This paper presents a method for implementing OGC Web Map Service based on Web Service technique and introduces the detailed process.
文摘There is a growing need for web-based geographic information systems for easy and fast dissemination, sharing, displaying and processing of spatial information. The tremendous growth in the use of web and open-source geospatial resources has sparked development of web-based spatial applications to address multidisciplinary issues with spatial dimensions. This paper presents the integration of open-source geospatial tools and web technology to visualize and interact with spatial data using web browser. The goal of this paper is to implement a prototype system for web-based mapping by providing step-by-step instructions in order to encourage the eager developers and interested readers to publish their maps on the web with no prior technical experience in map servers. The implementation of mapping prototype shows the utilization of open-source geospatial tools which results in a rapid implementation with minimal or no software input cost.
文摘提出一套在Google地图上实施交互式制图的方案.该方案以Google Maps API V3和KML为基础,借助Ajax技术,有效解决了在Google地图上实时交互式采集、绘制、存储、显示、选择、编辑、查询多要素地理信息等基本问题,为建立基于Google地图的WebGIS奠定基础.所得数据也可下载到客户端,作为其他应用的基础数据.
文摘目的:利用网络上已建立的空间数据资源和G IS应用,构建自己的W eb G IS系统.方法:GML作为数据交换标准和OGC G IS W eb服务实现G IS互操作.结果:利用deegree服务器,建立了一个基于WMS和WFS的W eb G IS系统.结论:基于GML和G ISW eb服务的W eb G IS实现了空间数据的无缝集成和G IS功能上的互操作.
