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[Octave-bug-tracker] [bug #52416] about delaunay document
From: |
anonymous |
Subject: |
[Octave-bug-tracker] [bug #52416] about delaunay document |
Date: |
Wed, 15 Nov 2017 22:39:16 -0500 (EST) |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0 |
URL:
<http://savannah.gnu.org/bugs/?52416>
Summary: about delaunay document
Project: GNU Octave
Submitted by: None
Submitted on: Thu 16 Nov 2017 03:39:15 AM UTC
Category: Documentation
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Documentation
Status: None
Assigned to: None
Originator Name:
Originator Email: address@hidden
Open/Closed: Open
Discussion Lock: Any
Release: 4.2.1
Operating System: Any
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Details:
"help delaunay" says that
For 2-D sets, the return value TRI is a set of triangles which
satisfies the Delaunay circum-circle criterion, i.e., only a single
data point from [X, Y] is within the circum-circle of the defining
triangle.
For 3-D sets, the return value TETR is a set of tetrahedrons which
satisfies the Delaunay circum-circle criterion, i.e., only a single
data point from [X, Y, Z] is within the circum-circle of the
defining tetrahedron.
but from the result of "demo delaunay",
it seems that "only a single data point" should be changed to "no data
point".
<https://en.wikipedia.org/wiki/Delaunay_triangulation> also says that
In mathematics and computational geometry, a Delaunay triangulation for a
given set P of discrete points in a plane is a triangulation DT(P) such that
no point in P is inside the circumcircle of any triangle in DT(P).
I'm not very sure about this. Please check it carefully. Thanks maintainers.
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?52416>
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- [Octave-bug-tracker] [bug #52416] about delaunay document,
anonymous <=