Convert ezmesh to fmesh

I have an old piece of code that uses ezmesh:

h=ezmesh(@(x,y)v1(1)*x+v2(1)*y,... % funx

@(x,y)v1(2)*x+v2(2)*y,... % funy

@(x,y)v1(3)*x+v2(3)*y,... % funz

[-1 1 -1 1 -1 1]); % interval

In version R2021b, the editor prompts a warning that says:

'ezmesh' is not recommended. With appropriate code changes, use 'fmesh' instead

But after I convert ezmesh to fmesh:

h=fmesh(@(x,y)v1(1)*x+v2(1)*y,... % function of x

@(x,y)v1(2)*x+v2(2)*y,... % function of y

@(x,y)v1(3)*x+v2(3)*y,... % function of z

[-1 1 -1 1 -1 1]); % interval

I get the following warning:

Error using fsurf (line xxx)

Invalid parameter '-1 1 -...'.

Error in fmesh (line xxx)

h = fsurf(varargin{:}, 'CalledForMesh');

Error in xxx (line xxx)

h=fmesh(@(x,y)v1(1)*x+v2(1)*y,... % function of x

Can someone help explain what the problem is?

Answer 1

[KSSV]

v1 = rand(3,1) ;
v2 = rand(3,1) ;

h=fmesh(@(x,y)v1(1)*x+v2(1)*y,...  % funx
         @(x,y)v1(2)*x+v2(2)*y,...  % funy
         @(x,y)v1(3)*x+v2(3)*y,...  % funz 
         [-1 1 -1 1]);         % interval 

[CL]

sorry I'm not getting this. Why did you only specify one inteval [-1,1] for x-axis and ignoreing y- and z-axis? In the image shown, x's axis has [-0.4,0.4], y's axis has [-0.5,0.5] and z's [-1.3,1.3] ... none of the axis shown inteval of [-1,1].

[KSSV]

You can specify the intervel for x and y. Edited the code.