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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[edit]![](http://178.128.105.246/content-https-upload.wikimedia.org/wikipedia/commons/thumb/2/20/Mathematica_Logo.svg/17px-Mathematica_Logo.svg.png)
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}}]
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[edit]Marozols, the copyright holder of this work, hereby publishes it under the following licenses:
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Attribution: Marozols
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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 by n.
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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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