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+load wind
+xmin = min(x(:));
+xmax = max(x(:));
+ymax = max(y(:));
+zmin = min(z(:));
+wind_speed = sqrt(u.^2 + v.^2 + w.^2);
+hsurfaces = slice(x,y,z,wind_speed,[xmin,100,xmax],ymax,zmin);
+set(hsurfaces,'FaceColor','interp','EdgeColor','none')
+hcont = contourslice(x,y,z,wind_speed,[xmin,100,xmax],ymax,zmin);
+set(hcont,'EdgeColor',[.7,.7,.7],'LineWidth',.5)
+[sx,sy,sz] = meshgrid(80,20:10:50,0:5:15);
+hlines = streamline(x,y,z,u,v,w,sx,sy,sz);
+set(hlines,'LineWidth',2,'Color','r')
+view(3)
+daspect([2,2,1])
+axis tight
+
+axis off
+print -dpng plotgraphics3d
+[h,v]=view