1998
DOI: 10.1016/s0167-8396(97)00042-3
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Analysis and applications of pipe surfaces

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Cited by 88 publications
(67 citation statements)
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“…In response to the example of Figure 9, a theorem was published for ambient isotopic PL approximations of 1-manifolds [119], with an illustrative outcome shown in Figure 10. The proof utilizes 'pipe surfaces' from classical differential geometry [128].…”
Section: Correctly Embedded Approximations For Graphics and Applicationsmentioning
confidence: 99%
“…In response to the example of Figure 9, a theorem was published for ambient isotopic PL approximations of 1-manifolds [119], with an illustrative outcome shown in Figure 10. The proof utilizes 'pipe surfaces' from classical differential geometry [128].…”
Section: Correctly Embedded Approximations For Graphics and Applicationsmentioning
confidence: 99%
“…As approximation is unavoidable in solid modeling, the question of whether an approximation is 'good enough' to preserve the essential features of the object is of central importance. Previous publications by the first two authors have invoked the concept of ambient isotopy, a topological notion of equivalence for admissibility of approximations to curves [21] and surfaces [7].…”
Section: Related Workmentioning
confidence: 99%
“…Applying the implicit function theorem, the level sets of the distance function are also C 2 in ν δ . Similarly, we see that the gradient field of the distance function in B δ is the unit C 1 field generated by the radial rays emanating from the boundary of M. This is an easy consequence of our choice of δ [10,15]. One can, in fact, show that the map…”
Section: Definition 52 An Embedded Manifold (M F ) Is Cmentioning
confidence: 75%
“…where c i , 1 ≤ i ≤ n is a boundary curve of M and δ(c i ) is the maximal radius of the regularly embedded pipe surfaces E r (c i ) [15]. Let r 0 be a sufficiently small positive number so that E r 0 (M ) is well defined and C 1 except for along the curves S 1,r 0 's where it is G 1 .…”
Section: The Definition Of the Envelopementioning
confidence: 99%
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