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
行星地质图是深空探测的重要成果表达形式,也是行星矿产资源调查与储量估算的基础数据。虽然各个国家对行星开展了大量的探测活动,但关于行星地质制图方面的研究进展较为缓慢,制图成果集中在20世纪,并且各国的行星地质制图标准有较大差...行星地质图是深空探测的重要成果表达形式,也是行星矿产资源调查与储量估算的基础数据。虽然各个国家对行星开展了大量的探测活动,但关于行星地质制图方面的研究进展较为缓慢,制图成果集中在20世纪,并且各国的行星地质制图标准有较大差异。本文研究梳理了行星地质制图的发展历史和各国现有的行星地质制图体系。目前美国有较为完善的行星地质图制图体系,欧洲航天局ESA (European Space Agency)在美国绘图体系的基础上加以创新,形成了富有特色的非标准制图产品。中国也在逐渐形成一套相对完善的制图标准。未来,随着不断获取高质量的探测数据,中国将会形成更为完善的行星制图体系。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.
文摘行星地质图是深空探测的重要成果表达形式,也是行星矿产资源调查与储量估算的基础数据。虽然各个国家对行星开展了大量的探测活动,但关于行星地质制图方面的研究进展较为缓慢,制图成果集中在20世纪,并且各国的行星地质制图标准有较大差异。本文研究梳理了行星地质制图的发展历史和各国现有的行星地质制图体系。目前美国有较为完善的行星地质图制图体系,欧洲航天局ESA (European Space Agency)在美国绘图体系的基础上加以创新,形成了富有特色的非标准制图产品。中国也在逐渐形成一套相对完善的制图标准。未来,随着不断获取高质量的探测数据,中国将会形成更为完善的行星制图体系。
