Imatge:ER core.png

[edit] Summary

[edit] Licensing

I, the copyright holder of this work, hereby publish it under the following licenses: 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". Aragon??s | ?????????????? | Asturianu | ?????????????????? | ??????????????? | ???????????? ?????????/??????????????????????????????????????? ????????????????????? | Brezhoneg | Bosanski | Catal?? | Cebuano | ??esky | Dansk | Deutsch | ???????????????? | English | Esperanto | Espa??ol | Eesti | Euskara | ?????????? | Suomi | Fran??ais | Gaeilge | Galego | ?????????? | Hrvatski | Magyar | Bahasa Indonesia | Ido | ??slenska | Italiano | ????????? | ????????????????????? | ??????????????????????????? | ????????? | Kurd?? / ?????????? | Latina | L??tzebuergesch | Lietuvi?? | Bahasa Melayu | Nnapulitano | Nederlands | ???Norsk (nynorsk)??? | ???Norsk (bokm??l)??? | Occitan | Polski | Portugu??s | Rom??n?? | ?????????????? | Sloven??ina | Sloven????ina | Shqip | ???????????? / Srpski | Svenska | ?????????????????? | ????????? | T??rk??e | ???????????????????? | ???????? | Ti???ng Vi???t | Volap??k | Yor??b?? | ?????????(????????????)??? | ?????????(??????)??? | +/- This file is licensed under the Creative Commons Attribution ShareAlike license versions 2.5, 2.0, and 1.0 ?????????????? | ?????????????????? | Catal?? | ??esky | Dansk | Deutsch | English | Espa??ol | Euskara | ?????????? | Fran??ais | ?????????? | Italiano | ????????? | ????????? | Lietuvi?? | Nederlands | Polski | Portugu??s | ?????????????? | Svenska | ??????????????? | T??rk??e | ?????? | ?????? | +/- You may select the license of your choice.

Made using povray 3.6 and the following source

#declare RAD = on;
#include "colors.inc"

global_settings {
  #if(RAD)
    radiosity {
      brightness 0.60 
      count 100
      error_bound 0.2
      gray_threshold 0.0
      low_error_factor 0.2
      minimum_reuse 0.015
      nearest_count 10
      recursion_limit 1
      #if (version>3.1)
        adc_bailout 0.01
        max_sample -1.0
        media off
        normal off
        always_sample 1
        pretrace_start 0.08
        pretrace_end 0.01
      #end
    }
  #end
}

background { color White }

#declare corner = lathe { // a quarter of cyclindic volume used to "round" the corners
    linear_spline
    6
    <0,0>,<0.05,0>, <0.1,0.05>, <0.1,0.95>,<0.05,1>, <0,1>
    rotate 90*x 
}
 
#declare side =  prism { // the extrusions of the volume
  linear_sweep
  linear_spline
  0, 1, 9,
  <0.05,0>, <0,0.05>, <0,0.95>, <0.05,1>, <0.45,1>, <0.5,0.95>, <0.5,0.05>, <0.45,0>, <0.05,0>
}

#declare bottom = prism { // The bottom of the core
  linear_sweep
  linear_spline
  0, 1, 9,
  <0.25,0>, <0,0.05>, <0,0.95>, <0.25,1>, <0.35,1>, <0.4,0.95>, <0.4,0.05>, <0.35,0>, <0.25,0>
}

#declare middle =  cylinder { // the extrusion of the middle leg
  <0,0,0>,<0,1,0>,0.5
}

union {
  difference{
    union{
      object {side scale <1,2,1> translate -1.7*x  }
      object {side scale <1,2,1> translate 1.2*x  }
    }
    cylinder{<0,-10,0.5>,<0,10,0.5>,1.4 translate 0.3*y}
  }
  object {bottom scale <1,3.2,1> rotate -90*z translate <-1.6,0.3,0> }
  object {corner translate -1.6*x}
  object {corner translate 1.6*x} 
  object {middle scale <1,2,1> translate <0,0,0.5>  }

  rotate <0, -20, 0>
  finish {
    #if(RAD)  
      ambient 0
      diffuse 0.7 
    #else
      ambient 0.2 
      diffuse 0.5      
    #end   
    phong 1
    phong_size 60
  } 
  pigment { Gray } 
}
light_source { <2, 4, -3> color White}
camera {location <1,8,-15> look_at <-0.15,1.15,0> angle 13}
//camera {location <1,8,-1> look_at <-0.15,0.8,0> angle 30}

And compiled using the following command:

povray -IE_core.pov -W1280 -H960 -Q11 +A

Les seg??ents p??gines enllacen a aquesta imatge:

• Nucli magn??tic