@article{Appel:1979:HLE,
number = {3},
month = aug,
author = {Arthur Appel and F. James Rohlf and Arthus J. Stein},
optkey = {},
series = CGPACS,
keywords = {algorithmic aspects, hidden line/surface removal},
localfile = {papers/Appel.1979.HLE.pdf},
address = {New York},
publisher = {ACM Press},
doi = {http://doi.acm.org/10.1145/800249.807437},
organization = {ACM SIGGRAPH},
journal = SIGGRAPH79,
volume = {13},
optstatus = {URL},
title = {{T}he {H}aloed {L}ine {E}ffect for {H}idden {L}ine {E}limination},
abstract = {The haloed line effect is a technique where when a line in
three-dimensional space passes in front of another line, a gap is
produced in the projection of the more distant line. The gap is
produced as if an opaque halo surrounded the closer line. This
method for approximate hidden-line-elimination is advantageous
because explicit surface equations are not necessary. The relative
depth of lines, axes, curves and lettering is easily perceived.
This technique is especially suitable for the display of finite
element grids, three-dimensional contour maps and ruled surfaces.
When the lines or curves on a surface are closer than the gap
size, the gaps produced close up to produce a complete
hidden-line-elimination. A simple but efficient implementation is
described which can be used in the rendering of a variety of
three-dimensional situations.},
year = {1979},
pages = {151--157},
}
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