In this paper we report on a linked environment of the three programs XGobi, XploRe, and ViR-GIS. While XGobi and XploRe are statistical packages that focus on dynamic statistical graphics and provide analytical statistical features, respectively, ViRGIS is a 3D Virtual Reality Geographic Information System (GIS) that allows real{time access to, and visualization of, geographic data. The XGobi/...

Interactive and dynamic graphical methods provide powerful tools to interface a data analyst with data. For multivariate data, interactive techniques such as linked brushing and identiication allow an analyst to query the data, isolate or mask subsets, and examine dependencies between many variables. Dynamic techniques such as the grand tour give the analyst a sense of the overall shape (cluste...

Since 1996 Pierce County has utilized an ArcView application, called CountyView, as the county's enterprise GIS. After six years of use the application continues to draw more and more users, most of them grateful to be able to access the system from their desktop. This paper will attempt to describe what has made CountyView a successful enterprise GIS and categorize the elements needed in creat...

An implementation of an interactive parallel coordinate plot linked with the ArcView geographic information system (GIS) is presented. The integrated geographic visualization system was created for the exploratory analysis of mortality data from specific cancers as they relate, specifically spatially, to other mortality causes and to demographic and socioeconomic risk factors. The linked and in...

There are numerous methods to classification of feature types. Imagine provides classification models in addition to texture features and convolution methods that assist in detecting various feature types. Using ESRI's ArcView and ArcGIS Feature Analyst extension, the process of feature extraction is readily accessible and user-friendly to the analyst. But, in general, road detection, specifica...

We present a suite of extensions for ARCVIEW GISTM (ESRI) that allows to map the spatial distribution of first-order mechanical slope-properties in hard rock terrain, e.g. for large slope areas like water reservoir slopes. Besides digital elevation data, this expert-system includes regional continuous grid-based data on geological structures that might act as potential sliding or cutoff planes ...

Black and white and true-colour aerial photography from 2004, 1993 and 1985 are used for studies of growth and change of informal settlements in Voi, SE-Kenya. The digital data is orthorectified, corrected for brightness variations caused by light falloff and bidirectional effects and mosaicked using EnsoMOSAIC and Erdas Imagine software. The constructed mosaics are segmented with eCognition so...

Routing systems for motorized vehicles in the internet are well known and widely used. But until recently, there had been no possibility to completely design and individually plan a tourist bicycle tour. This paper describes the conceptual design and implementation of such a bicycle routing system which has been operational since July 2001. Design and implementation of the routing system was do...