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Projects archive / Beam Detector

Code:beamdetectorRoe2004
Title:Beam Detector
Authors:Chris Roe, Meurig Beynon
Date:Feb-2004
Type:model
Funding:PhD - PhD thesis
Short description:Model of a beam detector
EM Technologies:tkeden, %scout, %donald
Keywords:education, HCI, geometry
empublic references:
EMpress references:
Web site references:
Previous locations:~wmb/public/projects/misc/SciAm-lines
Tour:README

This model was updated from a prototype example of a beam detector by adding a spreadsheet-style display and better user controls. A beam detector for a circle consists of a number of lines that intersect the circle in such a way that any straight line passing through the circle will intersect with the beam detector. The task is to try and minimise the length of the lines that comprise the beam detector. This has links with the concept of Steiner trees. The model allows the user to manipulate certain points in a geometrical construction and drag them around and instantly see the resulting changes in the length of the beam detector and the various angles between lines.

beamdetectorRoe2004 is available locally within DCS at /dcs/emp/empublic/projects/beamdetectorRoe2004
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README 1002 12:13 PM Apr 07 2004 04:05 PM Dec 15 2014
README.xml 1310 09:12 AM Apr 07 2004 04:05 PM Dec 15 2014
Run.e 192 09:35 AM Feb 11 2004 04:05 PM Dec 15 2014
anglecalculator.e 1403 11:33 AM Feb 14 2003 04:05 PM Dec 15 2014
chrisextensions 5313 12:17 PM Feb 27 2003 04:05 PM Dec 15 2014
grid.e 9137 11:06 PM Feb 18 2003 04:05 PM Dec 15 2014
sce.1 1222 09:52 PM Feb 13 2003 04:05 PM Dec 15 2014
sce.22 633 03:40 PM Sep 10 1997 04:05 PM Dec 15 2014
sce.220 1871 08:54 AM Feb 14 2003 04:05 PM Dec 15 2014
sce.221 300 03:45 PM Sep 10 1997 04:05 PM Dec 15 2014
sce.23 2143 10:14 AM Feb 14 2003 04:05 PM Dec 15 2014
sce.24 2295 10:21 AM Feb 14 2003 04:05 PM Dec 15 2014
sce.25 261 03:43 PM Sep 10 1997 04:05 PM Dec 15 2014
sce.26 627 03:43 PM Sep 10 1997 04:05 PM Dec 15 2014
sce.29 72 03:44 PM Sep 10 1997 04:05 PM Dec 15 2014
sce.31 1064 03:45 PM Sep 10 1997 04:05 PM Dec 15 2014
sciam-lines 12698 03:37 PM Sep 10 1997 04:05 PM Dec 15 2014
sciam-lines.dvi 268 02:50 PM Apr 12 1999 04:05 PM Dec 15 2014
sciam-lines.log 144780 02:50 PM Apr 12 1999 04:05 PM Dec 15 2014
screenshot.jpg 58942 01:22 PM Feb 27 2003 04:05 PM Dec 15 2014

empublic system initially created by Ashley Ward with assistance from Chris Roe and Meurig Beynon.