基于Panorama Studio的街景网络快速发布关键技术研究

街景影像与电子地图、遥感影像结合提供给人们一种多尺度、多视角认识地球的新途径。本文探讨了移动测量车、手持相机全景影像的获取方法、基于Panorama Studio的全景影像拼接方法,以及网络环境下全景影像的发布,结合ArcGIS Server发布的地图,探讨了基于JavaScript的街景与地图交互等关键技术,形成一整套全景影像获取、拼接、发布技术流程。在此基础上实现了高速公路带状地形图街景网站的原型设计。     

The influence correction of boreal forest vegetation on SRTM data

The digital elevation model based on SRTM is very convenient for a wide range of studies but requires correction due to the influence of forest vegetation. The present study was conducted to analyse the effect of boreal forests on altitudes, aspects and slopes calculated from the SRTM. A DEM based on topographic maps at 1:100 000 scale was used as a reference. The linear regression analysis showed low data correlation in forested areas. The presence of different types of forests and felling in the woods leads to a complex distribution of deviations from the SRTM. A simple correction method was proposed, using a forest mask, built according to Landsat, and forest heights indicated on the topographic maps. After correction, the correlation coefficient between the altitudes increased by 0.05–0.14, the share of matching aspects by 1–4% and the share of matching slopes by 2–8%.     

面向室内地图多尺度表达的POI符号设计与实现

为了满足人们获取室内空间信息时多层次的认知需求,从室内空间的特点出发,以商城为例,对室内要素的分类分级体系进行梳理,在此基础上探讨兴趣点(point of inte-rest,POI)多尺度表达的符号模型;结合地图比例尺和用户需求设计了一套易于理解又能多层次表征要素信息的室内地图POI符号系统,并通过典型案例对其可行性进行制图实践检验。实践结果表明,所提出的多尺度POI符号化方案具有可行性,设计的符号集可以广泛运用到其他商城中,该思想可以运用于其他类型的室内地图。     

城市创新主题的内容构建与制图表达——以《深圳市地图集》为例

城市地图集综合性强,涉及领域广泛,能够全方位展示城市风貌。在编制城市地图集时结合创新主题展示城市发展现状具有重要意义。深圳市被誉为创新之都,以新版《深圳市地图集》的创新发展图组为例,介绍其如何结合深圳市创新特色进行内容结构建立和可视化表达,为同类地图集、图册的编制提供参考。     

Continuity markers as an aid for children in finding the peripheral continuity of world maps

ABSTRACT

Many map readers, including both children and adults, find it difficult to determine where they would be located along the edge of a world map after crossing that edge. Different types of markers have long been drawn close to the map’s edge – for example, in an atlas – to help map readers identify the map upon which they will find themselves if that edge is passed. In this study, a method similar to that used to show the continuity between maps in an atlas has been tested to determine whether continuity markers can also be used to help map readers find a world map’s actual peripheral continuity. The study involved children between the ages of 10 and 13 years and showed that continuity markers do help children determine the map’s actual peripheral continuity, in combination with a lesson that describes how to find the actual peripheral continuity of a world map. This article, therefore, concludes that continuity markers for world maps can be a useful part of map design that clarifies how the edges of a world map fit together for children who have learned to use this tool.     

Jacques Bertin,from classical training to systematic thinking of graphic signs

ABSTRACT

Nearly 50 years after the publication of the first French edition of Sémiologie Graphique, Jacques Bertin’s thought is more than ever alive, in cartography as well as in various other disciplines, such as graphic design or visual data analysis. This article recalls the main elements of Bertin’s career and puts forward the salient points of his reflection on graphics. Beyond many conceptual or technical innovations, Bertin’s essential originality appears to be his attempt to propose a general framework for graphical representations.     

浅析《重庆历史地图集·第一卷 古地图》对古地图的修复

主要通过对古地图在保存质量、历史属性和数字化过程三方面的特性进行阐述,论述了修复古地图的必要性,提出了"修旧如旧"的基本修复原则,并简要介绍了《重庆历史地图集·第一卷古地图》中对古地图的修复流程,描述了变形矫正、颜色调整、脏面去除、折痕消除和图面补缺等五个具体的操作方法,总结了在古地图修复过程中需要考虑的问题。     

地图的多样化实现

女性一直被认为缺少空间感和方向感,但在借助地图指向时,这种现象就不那么明显了.随着女性活动范围的扩大,地图的作用就越发显得重要.文章分析了现行地图不为女性常用的原因,提出女性参与设计编辑面向女性的专用地图,使地图表现更加多样化,同时,借助因特网、智能手机等数字信息引导,使得女性使用地图更加便捷、有效.     

大连金普新区建设变化监测项目的探讨

通过大连金普新区建设变化监测项目的工作实践,系统地阐述了该项目的内容、方法、生产工艺和质量控制,对保证项目的顺利进行、保障数据的真实可靠具有重要意义。     

地形图脚本文件自动生成的研究与应用

AutoCAD脚本文件编写简单,可将不同的命令组合起来并按照一定的顺序连续地执行,可用于对分幅地形图数据的批量处理。本文利用程序开发了脚本文件自动生成程序,较大地提高了图形编辑处理的效率。