Cartography and Geographic Information Science

A scholarly journal devoted to extending cartographic methodology. Publishes original research papers on traditional cartography, geographic information systems (GIS), and other digital mapping technologies. Content also includes technical notes, bibliogr

Articles from Vol. 32, No. 4, October

A Comparative Analysis of Areal Interpolation Methods
Introduction Areal interpolation is the process of estimating the values of one or more variables in a set of target polygons based on known values that exist in a set of source polygons. The need for areal interpolation arises when data from different...
An Artificial-Neural-Network-Based, Constrained CA Model for Simulating Urban Growth
Introduction A classical cellular automata (CA) model is a set of identical elements, called cells, each one of which is located in a regular, discrete space. Each cell can be associated with a state from a finite set. The model evolves in discrete...
A Prototype Temporal GIS for Multiple Spatio-Temporal Representations
Introduction Is geographic reality changing gradually or rapidly, continuously or discretely? How do human activities interact with the environment? Temporal information is useful in answering these questions and to understand better the dynamic...
Assessing Resampling Accuracy of Categorical Data Using Random Points
Introduction Constructing image databases at a global scale is a challenging task because the spherical globe cannot be covered completely by square cells without gaps or overlaps. Two methods have been used to construct global image databases....
Auto-Carto 2005 Research Symposium
The Auto-Carto series of meetings began in 1974 at the U.S. Geological Survey National Center in Reston, Virginia, establishing a record of scholarly research in cartography and geographic information systems that became the foundation of geographic...
Combining Usability Techniques to Design Geovisualization Tools for Epidemiology
Introduction The task of understanding the causes, controls, and distribution of cancer presents an array of diverse and intricate challenges to those who wish to develop geovisualization tools to support this work. Within the discipline of cancer...
Communities of Scholars: Places of Leverage in the History of Automated Cartography
Introduction Geographic information systems (GIS) have emerged during the past four decades through a complex interaction of actors. One key element has been the research community. This community has slowly become aware of the breadth of the network...
Design Considerations for Haptic and Auditory Map Interfaces
Communicating Spatial Information to the Blind Two major obstacles that blind and visually impaired individuals face in becoming fully functioning members of our modern society are access to print media and the ability to freely move throughout...
Exploring the Hidden Potential of Common Spatial Data Models to Visualize Uncertainty
Introduction Before visualization, spatial data are stored as text or numbers. Decisionmakers viewing raw data must perform their own mental visualization if they wish to discover relationships or patterns in the data. Geographic visualization (or...
Generalization Services on the Web-Classification and an Initial Prototype Implementation
Motivation In recent years, cartography has evolved in a new direction with the application of web technologies and services. As a result of this process, maps in the web context are generally generated on demand and on-the-fly, containing more...
Gradation as a Communication Device in Area-Class Maps
Introduction Dissatisfaction with the abruptness of boundaries on area-class maps has led many researchers in the natural sciences to look for alternative data models that depict gradation between classes and regions. A commonly proposed solution...
Lidar Elevation Data for Surface Hydrologic Modeling: Resolution and Representation Issues
Introduction The past decade has seen a steady increase in quantity, precision, and accuracy of digital spatial data products. High-resolution elevation datasets are among the most demanded products, and they are necessary for a wealth of important...
Map Design Evaluation for Mobile Display
Introduction Understanding how users interact with digital maps on handheld devices such as personal digital assistants (PDAs) and cell phones is critical for creating effective maps for mobile computing. Digital map displays allow users to zoom...
Supporting the Comparison of Choropleth Maps Using an Evolutionary Algorithm
Introduction The spatial distribution of different variables can be compared by placing multiple small maps side by side (see Tufte 1990). This approach is particularly effective if the displayed variables are correlated. When this idea is applied...
The Roles of Web Feature and Web Map Services in Real-Time Geospatial Data Sharing for Time-Critical Applications
Introduction Many time-critical applications such as emergency response, location-based services, and real time traffic management need instant access to diverse data to make quick decisions and take instantaneous actions. Imagine the following...
Towards a 3D Feature Overlay through a Tetrahedral Mesh Data Structure
Introduction Current developments in three-dimensional (3D) sensors and measuring devices, such as terrestrial lasers canners, make it possible to model and represent real-world features so that they more closely resemble their actual shape. Until...
Variable-Scale Topological Data Structures Suitable for Progressive Data Transfer: The GAP-Face Tree and GAP-Edge Forest
Introduction Data structures supporting variable scale data sets are still very rare. There are a number of data structures available for multi-scale databases based on multiple representations, that is, the data are used for a fixed number of scale...
Visualization of Qualitative Locations in Geographic Information Systems
Introduction Two trends are seen recently in regard to locating geospatial features. On one hand, more accurate location information can be obtained thanks to modern surveying and mapping instruments and technologies. On the other there is a growing...