Index Catalog // Hyrax

The influence of map complexity on interpolation accuracy.pdf

Schöpfer:: Young, Brian K.
Abstract:: In this paper "map complexity" refers to the inherent intricacy of a mapped geographic pattern. Map complexity and sample size are two variables shown to influence the accuracy of interpolated dasymetric maps. An automated experiment was designed to investigate the precise relationship among map complexity, sample size, and the accuracy...
Resource Type:: Masters Thesis

Equal contrast tint progressions for computer cartography

Schöpfer:: Bernert, Joseph A.
Abstract:: A psychophysical bisectioning experiment was performed to evaluate equal steps within tint progressions on a high resolution graphics terminal. In the bisectioning experiment each respondent partitioned a tint progression by interactively defining colors that were perceptually equidistant between two previously defined colors. Twenty test subjects performed the test on the...
Resource Type:: Masters Thesis

A Methodology to directly input data from an uncontrolled aerial photograph into a vector based geographic information system

Schöpfer:: Sneed, Jacquelin M.
Abstract:: Historically the U.S. Forest Service has used uncorrected aerial photographs to delineate proposed and past management activities on the land base it manages. Transferring a boundary from an image not planimetrically correct to a planimetrically corrected image introduces errors. Positional accuracy of boundaries affects the number of acres the Forest...
Resource Type:: Masters Thesis

Accuracy of community-based spatial data collection in a GIS

Schöpfer:: Wood, Matthew N.
Abstract:: Training high school students to conduct field mapping and data collection of wildlife habitat on public lands produces important data for local government geographic information systems and introduces students to the field of geography. However, the positional accuracy of the spatial data is important for use in a GIS, as...
Resource Type:: Capstone Project

Color specification and cartography: a comparison of the Munsell Color System and the HLS system

Schöpfer:: Yeaple, Anne
Abstract:: Progress in the development of color CRT's and color graphic hard-copy devices offers a new tool for the thematic mapper. From a cartographic perspective, the technology for displaying and producing color maps has advanced without concern for cartographic principles and conventions in the employment of color. Since it is necessary...
Resource Type:: Capstone Project

Expert systems in computer cartography

Schöpfer:: Ulshoefer, Veit Stefan
Abstract:: The purpose of this paper is to describe the application of expert system concepts to cartographic problems. Expert systems, a subfield of artificial intelligence, are computer programs based on knowledge and symbolic reasoning. The basic principles of expert systems will be explained. Areas of cartography that are most suitable for...
Resource Type:: Capstone Project

The development of a Geographic Information System (GIS) for the Greenbelt Land Trust of Corvallis, Oregon

Schöpfer:: Scarlett, Desiree
Abstract:: The purpose of this project, therefore, is to develop a GIS for a small geographical area that is currently of high priority to the GLT. The development of this GIS will be documented in a sequential fashion, so that it may serve as a framework for future endeavors. This paper...
Resource Type:: Capstone Project

Digital slope-aspect display using nearly continuous hue classes

Schöpfer:: Weston, Frederick N.
Abstract:: Slope-aspect is the compass direction of a slope at a particular location on a given surface, and can provide a graphic tool for people who require an understanding of the pattern of slope-aspect variation across a landscape. Slope-aspect maps can be helpful for terrain analysis, watershed management, building site analysis,...
Resource Type:: Capstone Project

Geographic Information System model rating old-growth stand significance on the Olympic National Forest

Schöpfer:: Wettengel, William M.
Abstract:: With increased attention being focused on the remaining old-growth forest resource in the Pacific Northwest a way to ecologically rate forest stands is needed to assist the U.S. Forest Service in its management decisions. A Geographic Information System (GIS) model was developed to rate old-growth stands in a 49,500 acre...
Resource Type:: Capstone Project

Production of an animated cartography sample for teaching and instruction, with musings on the nature and usefulness of animated maps

Schöpfer:: Whaley, Kristine A.
Abstract:: Animated cartography is still a new field. It has been experimented with for years, but it has not gained general usage except partially in use by the news media. Nevertheless, certain subjects cry out for displaying the patterns of movement over time, such as historical patterns of migration and settlement,...
Resource Type:: Capstone Project

Hyrax

The influence of map complexity on interpolation accuracy.pdf

Equal contrast tint progressions for computer cartography

A Methodology to directly input data from an uncontrolled aerial photograph into a vector based geographic information system

Accuracy of community-based spatial data collection in a GIS

Color specification and cartography: a comparison of the Munsell Color System and the HLS system

Expert systems in computer cartography

The development of a Geographic Information System (GIS) for the Greenbelt Land Trust of Corvallis, Oregon

Digital slope-aspect display using nearly continuous hue classes

Geographic Information System model rating old-growth stand significance on the Olympic National Forest

Production of an animated cartography sample for teaching and instruction, with musings on the nature and usefulness of animated maps

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