Картинка:Sphere with chart.png
от Уикипедия, свободната енциклопедия

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Sphere_with_chart.png (366 × 591 пиксела, размер на файла: 38 KB, MIME тип: image/png)
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A sphere with the chart mapping the upper hemisphere to a disk.
Created by me using Matlab.
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[edit] Matlab source
clf; hold on; colormap([0 0 1; 1 0.2 0.2; 1 0 0; 0 0 0]); [sx,sy,sz] = sphere(49); sc = [ ones(24,50); 2*ones(26,50) ]; surf(sx,sy,sz, sc, 'EdgeColor', 'none', 'FaceColor', 'flat', ... 'FaceLighting', 'phong'); sz2 = 2*ones(50,50); sc2 = 3*ones(50,50); surf(sx,sy,sz2, sc2, 'EdgeColor', 'none', 'FaceColor', 'flat', ... 'FaceLighting', 'phong', 'FaceAlpha', 0.5); [cx,cy,cz] = cylinder([0.005 0.005]); cc = 4*ones(size(cx)); surf(cx+1, cy, 2*cz, cc); surf(cx-1, cy, 2*cz, cc); surf(cx, cy+1, 2*cz, cc); surf(cx, cy-1, 2*cz, cc); surf(cx, cy, cz+1, cc); view(3); camlight left; axis equal; axis off; print -dpng spc_tmp.png system('convert -trim spc_tmp.png spc.png');
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