测绘新技术在建筑工程竣工验收中的应用

针对规划竣工验收测量工作存在的不完善部分,列举了测绘行业内新兴技术的应用方法。应用这些新兴技术,完善了规划竣工验收测量的测绘内容,从而更加细化了规划验收工作的内容,使测绘技术能够在更多的领域为规划管理服务。     

TOWARD A GEOGRAPHY OF THE INDUSTRIAL ESTATE∗

Geographic Software Reviewed in this article:

APPLEPIPS

IBM EDUCATIONAL SOFTWARE SERIES: EARTH SCIENCE SERIES. Moisture in the Atmosphere, Hydrologic Cycle, Surface Water Ground Water

MINI-MAX

MULTIMAP. Barry R. Cohen. Planning Data Systems

WORLD GEOGRAPHY SERIES, U.S. GEOGRAPHY QUIZ, U.S. GEOGRAPHY ADVENTURE     

THE GEOGRAPHY OF MASTODON EXTINCTION

Geographic Software Reviewed in this article:

LIFE TABLES and the LESLIE MATRIX. CONDUIT

MENTMAP2. Lawrence W. Carstensen Jr.

PC-MATLAB, Version 1.0. The Math Works, Inc.

QUICKMAP, version 1.0. Sammamish Data Systems, Inc.

SYSTAT: THE SYSTEM FOR STATISTICS, Version 2.1, Systat Inc.

USA DISPLAY. Instant Tecall     

Combining geographical information and traditional plots: the checkerplot

The checkerplot is a new type of graphical display that combines geographical information and statistical plots. Hereby, the traditional plots like barplots or polygon lines are visualized in geographical order on a grid. The checkerplots can be seen as a mixture between thematic maps and the grid representation in trellis plots.

In a checkerplot, any complex statistical graphics that are produced for geographical areas are placed in a grid. An interpretable checkerplot requires an arrangement of areas on the grid that reflects the underlying geography. A loss function is proposed that represents the distortion of the underlying geography needed in order to place the areas onto a grid. It is demonstrated that the minimization of the loss function does indeed produce interpretable checkerplots. Moreover, the optimization problem can be formulated as a linear programming problem that can be solved using standard linear programming solvers.

The proposed checkerplot is applied to US health insurance data to analyze the development of the coverage rate in the health system per state with respect to the different health care programs. Moreover, an example related to the EU-member states is also given. Additional information like the national flags of countries are placed in each grid to allow better visibility and recognition of the countries.

The checkerplot is implemented in the R-package sparkTable (Kowarik, Meindl, and Templ, 2012 Kowarik, A., Meindl, B., and Templ, M., 2012. sparkTable: sparklines and graphical tables for tex and html. R package version 0.9.3 http://cran.r-project.org/package=sparkTable (http://cran.r-project.org/package=sparkTable) (Accessed: 17 February 2012).  [Google Scholar]. sparkTable: sparklines and graphical tables for tex and html [online]. R package version 0.9.3 [Accessed 7 February 2012]) and can be freely downloaded from the CRAN repository. It is implemented in a flexible manner and not restricted to the examples given in this contribution.     

抓好实验环节促进理论学习和动手能力的提高——计算机图形学课程教学体会

计算机图形学和VC编程是测绘专业学生必备的专业基础,在实习中将二者有机地结合起来对于学生牢固掌握有关知识、提升专业技能很有好处。介绍了在计算机图形学实习过程中采取的一些措施、取得的成果,谈论了一些个人的体会。     

城市地图数据合并的平差方法

地图数字合并是指在同名实体匹配的基础上,调整相关地物实体的几何位置,以实现同一地区不同来源地图数据库的集成和信息融合.城市地图数据有其自身独有的特点,因此在对城市地图数据库进行合并时,不仅要消除不同图形空间数据之间的差异,还需要精确保持实体原有形状.本文提出了一种基于最小二乘平差的合并算法,采用附带条件的间接平差方法,...     

视频镜头显著性提取技术

基于显著区域提取技术,对复杂的视频镜头中动静结合显著图的提取技术进行了改进,提出由动态模型和静态模型两个特征要素作为线索提取动静结合的提取方法。方法对复杂运动镜头下运动特征的选择敏感度较高,实验验证表明,提出的动态模型和静态模型以自适应权重增减的融合方式得到的动静结合显著图与以往相比,精准度较高,也更接近于人类视觉机制的选择。     

All Season Observations of Meromictic Regime at Lake Doroninskoye

正1 Introduction Soda Lake Doroninskoye(Uleoti District of Transbaikalian Region,Russia)belongs to a rare type of meromictic basins.For meromictic basins,the vertical stratification in the form of sufficiently thin water layers with significantly differing physical and chemical properties is typical,as well as peculiar biota.The main characteristics of the lake Doroninskoye are:     

Digital Watermark-based Security Technology for Geo-spatial Graphics Data

1 Introduction Geo-spatial graphics data, as fundamental data in build- ing the Digital Earth, their security poses a big problem and draw much attention of many researchers all over the world. Digital Watermarking, which is based on theories of steganography, is a novel technique for data security developed in the recent years. A digital watermark is defined as an identifiable digital signal or mode that is permanently embedded into other data, namely host data, while it does not affect the …     

SOFTWARE REVIEWS

GISTutor (GIST!) – The Geographical Information Systems Tutor , Version 1.03. IDRISI , Version 3.1. Minitab DOS , Release 7.2. SL-MICRO, Statistical Language for Microcomputer. 1989. StatXact , Beta Test, Version 1.0. 1989.