3D plot isocolor
显示 更早的评论
Hi,
I’m new to matlab and I am trying to make a 3D plot of an equation created from experimental design 3^2 modelling determined from leaching experiments to show the optimisation direction.
The equation is Metal Extraction =1.95+(0.94/2)*A+(0.13/2)*B+(0.40/2)*AC
Where A can be x, B can be y and C can be z.
I have read a few answers and tried isocolors to get a plot using the example from tutorial page, which works for values 1 to 20, but when I use the values from -1 to 1 it comes up with a blank plot.
Could someone please help me in graphing my equation.
[x,y,z] = meshgrid(-1:1,-1:1,-1:1);
data = 1.95+(0.94/2).*x+(0.13/2).*y+(0.40/2).*x.*z ;
cdata = smooth3(rand(size(data)),'box',7);
p = patch(isosurface(x,y,z,data,10));
isonormals(x,y,z,data,p)
isocolors(x,y,z,cdata,p)
p.FaceColor = 'interp';
p.EdgeColor = 'none';
view(150,30)
daspect([1 1 1])
axis tight
camlight
lighting gouraud
I have plotted the equation in excel, but I have to make one variable equal to 1 to get any graphs.
Thanks for the assistance.
采纳的回答
darova
2019-9-30
It is because there is no such value as data=10 for those intervals you set
[x,y,z] = meshgrid(-1:1,-1:1,-1:1);
data = 1.95+(0.94/2).*x+(0.13/2).*y+(0.40/2).*x.*z ;
p = patch(isosurface(x,y,z,data,10)); % try 2 instead of 10
Also [-1:1] interval is only 3 values
>> -1:1
ans =
-1 0 1
2 个评论
sarah jones
2019-9-30
Thank you so much for the help. I now get a much better looking graph.
darova
2019-9-30
you are welcome
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Surface and Mesh Plots 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
