Re: Sterographic plotting program
- To: mathgroup at smc.vnet.net
- Subject: [mg51289] Re: Sterographic plotting program
- From: mathma18 at hotmail.com (Narasimham G.L.)
- Date: Tue, 12 Oct 2004 01:57:55 -0400 (EDT)
- References: <cjtnf7$8gv$1@smc.vnet.net> <ckajgr$m5j$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
mathma18 at hotmail.com (Narasimham G.L.) wrote in message news:<ckajgr$m5j$1 at smc.vnet.net>... > Roger Mason <rmason at esd.mun.ca> wrote in message news:<cjtnf7$8gv$1 at smc.vnet.net>... > > Has anyone implemented a program to plot stereograms in Mathematica? > > Stereograms are used in crystallography to plot the positions of faces > > (and other planes) on crystals.[1] > > In the following, Loxodromes making +/- 30 Degree to any meridian are > stereographically projected onto plane tangential to South Pole as > equi-angular/Logarithmic spirals. Please add 4 or 6 Loxos around polar > axis to get a full pattern. (Avoided it, as it may clutter up the > graphic). I remember a beautiful picturization similar to this in > 'Mathographics' by Dixon Robert.A., New York, Dover, 1991. Also take a small circle on sphere and project stereographically it on south pole tangent plane, it is again a circle.