Graphics (TOG)


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ACM Transactions on Graphics (TOG), Volume 11 Issue 3, July 1992

The interaction technique notebook: Adding shadows to a 3D cursor
Scott E. Hudson
Pages: 193-199
DOI: 10.1145/130881.370599

Octrees for faster isosurface generation
Jane Wilhelms, Allen Van Gelder
Pages: 201-227
DOI: 10.1145/130881.130882
The large size of many volume data sets often prevents visualization algorithms from providing interactive rendering. The use of hierarchical data structures can ameliorate this problem by storing summary information to prevent useless...

Surfaces from contours
David Meyers, Shelley Skinner, Kenneth Sloan
Pages: 228-258
DOI: 10.1145/130881.131213
This paper is concerned with the problem of reconstructing the surfaces of three-dimensional objects, given a collection of planar contours representing cross-sections through the objects. This problem has important aplications in biomedical...

Getting raster ellipses right
M. Douglas McIlroy
Pages: 259-275
DOI: 10.1145/130881.130892
A concise, incremental algorithm for raster approximations to ellipses in standard position produces approximations that are good to the last pixel even near octant boundaries or the thin ends of highly eccentric ellipses. The resulting...

A new, fast method for 2D polygon clipping: analysis and software implementation
Patrick-Gilles Maillot
Pages: 276-290
DOI: 10.1145/130881.130894
This paper presents a new 2D polygon clipping method, based on an extension to the Sutherland-Cohen 2D line clipping method. After discussing three basic polygon clipping algorithms, a different approach is proposed, explaining the principles of...

The interaction technique notebook: Bookmarks: an enhanced scroll bar
Dan R. Olsen, Jr.
Pages: 291-295
DOI: 10.1145/130881.370595