File:Gnomonic.png
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[edit]DescriptionGnomonic.png |
English: Gnomonic projection (projection from the center of the sphere)
Latviešu: Gnomoniskā projekcija (projekcija no sfēras centra) |
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Date | |||
Source | Own work (Original text: Own work by uploader, created with Mathematica 7.0.1) | ||
Author | Marozols | ||
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Source Code
[edit]This diagram was created with Mathematica.
(*Origin*) o = {0, 0, 0}; (*Coordinate axis*) {ex, ey, ez} = IdentityMatrix[3]; (*With of the plane*) w = 2; (*Overhang coefficient*) \[Delta] = 1.2; (*Axis*) axis = {Black, Arrow3D[{o, w*ex}], Arrow3D[{o, w*ey}], Arrow3D[{o, w*ez}]}; (*Sphere*) sph = {Orange, Opacity[0.7], Sphere[o]}; (*Plane1*) pln1 = {LightGray, Polygon[{{-w, w, -1}, {w, w, -1}, {w, -w, -1}, {-w, -w, -1}}]}; (*Plane2*) pz = Normalize@{0.7, 0.3, 1.1}; px = Normalize@{-pz[[2]], pz[[1]], 0}; py = Last@Orthogonalize[{pz, px, ey}]; t = Abs[1/py[[3]]]; \[CurlyEpsilon] = 1.01; pln2 = {LightGray, Opacity[0.3], Polygon[(*(#-(\[CurlyEpsilon]-1)pz)&/@*){\[Delta]*px + \[Delta]*t* py, \[Delta]*px - \[Delta]*py, -\[Delta]*px - \[Delta]* py, -\[Delta]*px + \[Delta]*t*py}]}; (*Circle*) \[Gamma] = \[Pi]/4; MediumThick = Thickness[0.004]; crc = {Black, MediumThick, Line@Table[\[CurlyEpsilon] (px*Cos[\[Alpha]] + py*Sin[\[Alpha]]), {\[Alpha], (\[Pi] + \[Gamma])/2, 2 \[Pi] + (\[Pi] - \[Gamma])/2, 0.05}]}; (*Projection*) r = Table[ px*Cos[\[Alpha]] + py*Sin[\[Alpha]], {\[Alpha], (\[Pi] - \[Gamma])/ 2, (\[Pi] + \[Gamma])/2, \[Gamma]/6}]; r1 = (#/Abs[#[[3]]]) & /@ r; proj = {Black, PointSize[0.01], Point[o], Point /@ (\[CurlyEpsilon]*r), Point /@ r1, Line[{o, #}] & /@ r1, Red, MediumThick, Line[\[CurlyEpsilon]*r], Line[r1]}; (*Graphics*) DefaultThick = Thickness[0.0015]; g = Graphics3D[{DefaultThick, EdgeForm[DefaultThick], sph, pln1, pln2, crc, proj}, Boxed -> False, Lighting -> "Neutral", ViewPoint -> 2 {0.7, -0.3, 0.1}, ImageSize -> 600, Method -> {"ShrinkWrap" -> True}]; g = Append[g, PlotRegion -> {{-0.02, 1.02}, {-0.03, 1.03}}]
Licensing
[edit]Marozols, the copyright holder of this work, hereby publishes it under the following licenses:
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
Attribution: Marozols
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- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
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This diagram was created with Mathematica.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:12, 9 May 2009 | 1,000 × 600 (114 KB) | Marozols (talk | contribs) | {{Information |Description={{en|1=Gnomonic projection (projection from the center of the sphere)}} {{lv|1=Gnomoniskā projekcija (projekcija no sfēras centra)}} |Source=Own work by uploader, created with ''Mathematica'' 7.0.1 |Author=[[User:Marozols|Maro |
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