Algorithms for sketching surfaces

Visvalingam, Maheswari; Dowson, Kurt

Abstract

First paragraph:
Until relatively recently, mainstream computer graphics has focused mainly on the challenge of simulating photorealism. Now that this aim has been realised to a large extent, a growing band of researchers (Sasada, 1987; Dooley and Cohen, 1990 ; Saito and Takahashi, 1990; 50 Solutions, 1994; Hs u and Lee, 1994 ; Leister, 1994; Salisbury et al, 1994; Winkenbach and Salesin, 1994) have found the emulation of sketching and illustration techniques equally challenging. This study explores the problem of sketching surfaces, such as terrain. In particular, it considers how a sketch may be abstracted from a Digital Elevation Model, or a DEM, which is basically a grid of height values. DEMs are becoming increasingly available. They are used within a variety of applications of Geographical In formation Systems (Burrough, 1986 , Catlow, 1986, DoE, 1987).

Citation

Visvalingam, M., & Dowson, K. Algorithms for sketching surfaces

• Working Paper Type: Discussion Paper
• Deposit Date: Mar 10, 2014
• Pages: 22
• Series Title: C.I.S.R.G. Discussion Papers (University of Hull Cartographic Information Systems Research Group)
• Series Number: 15
• Book Title: Algorithms for sketching surfaces
• Keywords: Cartography -- Data processing, Computer science
• Public URL: https://hull-repository.worktribe.com/output/459325