To translate TriScatteredInterp from Matlab to C# or C++

I would like to translate TriScatteredInterp from Matlab to C# and I do these operations but they don’t work.

1. I create "interpolazione.m" file on my desktop
2. I press buttons "Desktop -> MATLAB Coder: MEX Function"
3. I create "interpolazione.prj" file, I add "interpolazione.m" file in "Entry-Point Files" and I press "Build" button.

I get the following error message:

coder interpolazione.prj Could not locate build the MEX file compiler options mexopts.bat. Run mex-setup to select the MEX compiler and create the MEX options file. Use codegen help for more information on using this command.

The code that I would like to translate is this:

X=[0,1,2,0,1,2,0,1,2]';
Y=[0,0,0,1,1,1,2,2,2]';
Z=[0,0,0,1,1,1,2,2,2]';
x=[1.5,1.6,1.7];
y=[1.5,1.1,11.0];
F = TriScatteredInterp(X,Y,Z);
z = F(x,y)

Thanks for the help

[Walter Roberson]

Have you run

mex -setup

Answer 1

[Friedrich]

Hi,

besides of that error message. Don't even try to generate a mex file from that code because TriScatteredInterp isn't supported for code generation:

http://www.mathworks.com/help/releases/R2012a/toolbox/eml/ug/bq1h2z7-11.html

Consider using MATLAB Builder NE in order to generate a .NET DLL out of your code which than can be used in C# directly.

As far as I know, MATLAB uses the qhull library under the hood. Maybe the library itself is enough for you:

http://www.qhull.org/

[Richard Brown]

I think it uses the Boost Graph Library (BGL) now - it used to use qhull

Answer 2

[Ubaldo]

Thanks for your help. TriScatteredInterp is equal to Qhull or the first used in Matlab is better?