接着就是把体素框架和Image Stack混合起来,每个体素单元的顶点都能对应图片数据集里的灰度值,有着相同数值的点,就可以形成等值面(Isosurface)。 至于IsoSurface和等值面的概念,感兴趣的朋友可以自己去查阅资料,历史悠久、算法也很多(Cuberille,Marching Cubes(MC)等)。 ?
.^3; [x,y,z]=meshgrid(linspace(-3,3)); val=f(x,y,z); [p,v]=isosurface(x,y,z,val,0); patch('faces',p,' *z.^3; [x,y,z]=meshgrid(linspace(-1.5,1.5)); val=f(x,y,z); isosurface(x,y,z,val,0); axis equal;view(
.^3); %心型函数,《高数(同济大学版)-附录》 isosurface(F,0) lighting phong caxis axis equal colormap(‘flag’); %颜色 view
'hiso = patch(isosurface(Ds,5),''FaceColor'',[1,.75,.65],''EdgeColor'',''none'');,',...
.^3; p=patch(isosurface(x,y,z,f,0)); set(p,'FaceColor','red','EdgeColor','none'); daspect([1 1 1]) view *z.^3; [faces,verts,colors] = isosurface(x,y,z,p,0,x); for i = 1:18 figure(i) pp = patch('Faces
name, map, level [,(selection) [,buffer [,state [,carve ]]]] 解释: 原文: name = the name for the new mesh isosurface
.^3); p=patch(isosurface(x,y,z,f,0)); set(p,'FaceColor','r') grid on daspect([1 1 1]) view(3) camlight
.^3; p=patch(isosurface(X,Y,Z,V,0)); set(p,'FaceColor','red','EdgeColor','none'); view(3);axis equal;
negative “Contour” fields to the desired values (usually ±1, ±5, or ±10 kT/e) and hit the Positive Isosurface and Negative Isosurface and Show buttons. ±1 kT/e electrostatic potential isocontours of FAS2 in PyMOL
关于切片的更多方法,可以参见matlab的教程: Exploring Volumes with Slice Planes利用切片平面探索三维体 1.3 三维等值面图绘制 等值面相关的常用函数有:patch、isosurface close all clear load wind figure wind_speed = sqrt(u.^2 + v.^2 + w.^2);%速度 %绘制等值面 hiso = patch(isosurface
texture','3D');set(h,'XData',x,'YData',y,'ZData',z);axisequal;view(3);shadinginterp;2.等值面提取%提取φ=0.5等值面fv=isosurface
negative “Contour” fields to the desired values (usually ±1, ±5, or ±10 kT/e) and hit the Positive Isosurface and Negative Isosurface and Show buttons. ±1 kT/e electrostatic potential isocontours of FAS2 in PyMOL
3.Flexible Isosurface Extraction for Gradient-Based Mesh Optimization(SIGGRAPH 2023) 标题:用于基于梯度的网格优化的灵活等值面提取
针对这个问题,Google Research 和 MIT 的研究人员提出了一种方法来渲染显式(如网格 mesh )和隐式(如等值面 isosurface)表示,能够在边界处生成精确、平滑的导数。
tetmesh.addScalarBar3D(title='chem_0 expression', c='k') thrslist = [0.2, 0.3, 0.8] isos = tetmesh.isosurface
z = np.meshgrid(z1, z2, z3) distribution = distribution.reshape(-1) fig= go.Figure(data=go.Isosurface
.^3); isosurface(F,0) camlight right; lighting phong colormap('autumn'); caxis([0,25]) grid on axis equal
因此,在JMol的控制台窗口中敲入: isosurface mo 38 translucent 0.75 显示的第38条LMO如下所示: ?
.^3; p = patch(isosurface(x, y, z, val, 0)); isonormals(x, y, z, val, p); set(p, 'FaceColor', 'red',
.^3;%心形曲面函数 [x,y,z]=meshgrid(-1.5:0.1:1.5);%画图范围 v=f(x,y,z); %画图 h=patch(isosurface(x,y,z,v,0));