Image:Surface of revolution illustration.png

I, the copyright holder of this work, hereby release it into the public domain. This applies worldwide. In case this is not legally possible: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. Afrikaans | Alemannisch | Aragonés | العربية | Asturianu | Български | Català | Česky | Cymraeg | Dansk | Deutsch | Eʋegbe | Ελληνικά | English | Español | Esperanto | Euskara | Estremeñu | فارسی | Français | Galego | 한국어 | हिन्दी | Hrvatski | Ido | Bahasa Indonesia | Íslenska | Italiano | עברית | Kurdî / كوردی | Latina | Lietuvių | Latviešu | Magyar | Македонски | Bahasa Melayu | Nederlands | ‪Norsk (bokmål)‬ | ‪Norsk (nynorsk)‬ | 日本語 | Polski | Português | Ripoarisch | Română | Русский | Shqip | Slovenčina | Slovenščina | Српски / Srpski | Svenska | ไทย | Tagalog | Türkçe | Українська | Tiếng Việt | Walon | ‪中文(简体)‬ | ‪中文(繁體)‬ | zh-yue-hant | +/-

[edit] MATLAB source code

% illustration of a surface of revolution
function main()

   % the number of data points. More points means prettier picture.
   N = 300;

   a=-3; b = 4.3;

   % polar coordinates
   ZZ = linspace(a, b, N);
   TTheta = linspace(0, 2*pi, N);

   % mesh grid
   [Z, Theta] = meshgrid(ZZ, TTheta);

   % the curve we will revolve
   R = cos(Z)+2; 
   
   X = R.*cos(Theta); Y = R.*sin(Theta);

   figure(2); clf; hold on; axis equal; axis off;
  
% plot the surface
   H=surf(X, Y, Z); shading faceted;

   % pick a color
   mycolor=[184, 77, 66]/256; % pink brick
   mycolor=[184, 224, 98]/256; % light green
%   mycolor=[225, 168, 48]/256; % golden brown
%   mycolor=[0, 66, 17]/256; % dark green
%   mycolor=[225, 0, 84]/256; % pink

   % set some propeties
   set(H, 'FaceColor', mycolor, 'EdgeColor','none', 'FaceAlpha', 1);
   set(H, 'SpecularColorReflectance', 0.1, 'DiffuseStrength', 0.8);
   set(H, 'FaceLighting', 'phong', 'AmbientStrength', 0.3);
   set(H, 'SpecularExponent', 108);
   
% viewing angle
   view(0, 12);

% add in a source of light
   camlight (-50, 54); lighting phong;
   
   % save as png
  print('-dpng', '-r200', 'Surface_of_revolution_illustration.png');

• Surface of revolution
• User:Oleg Alexandrov/Pictures