Is it possible to convert a function containing a plot into c++ code?

Question

Valeria Leto 2021-12-23

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1616700-is-it-possible-to-convert-a-function-containing-a-plot-into-c-code

回答： Pratik 2024-2-14

Hi! Is it possible to convert this function into c++? I would like to open a window in c++ that shows data as if I were in MATLAB.

%% INTERPOLAZIONE (distingue tratti rettilinei e curve e risoluzione impostabile)
function [Xq,Yq,Zq,Vq] = interpolazione(ampiezza,point_seabed_e,point_seabed_n,point_seabed_e_piu,point_seabed_n_piu,point_seabed_e_meno,point_seabed_n_meno,I,ris,metodo,mydir,folder,Namefile)
%% il comando griddata vuole come ingressi vettori colonne quindi trasformo le matrici di coordinate est e nord in vettori colonna
if(ampiezza==0)
    points = [point_seabed_e(:),point_seabed_n(:),I(:)];
else
    points = [point_seabed_e(:),point_seabed_n(:),I(:)
        point_seabed_e_piu(:),point_seabed_n_piu(:),I(:)
        point_seabed_e_meno(:),point_seabed_n_meno(:),I(:)];
end
%% Nuovi punti dove voglio valutare l'immagine
%calcolo i limiti entro cui fare l'interpolazione
% nord
Max_n = max(points(:,2));
Min_n = min(points(:,2));
v_sup=ceil(Max_n);
v_inf=floor(Min_n);
% est
Max_e = max(points(:,1));
Min_e = min(points(:,1));
u_sup=ceil(Max_e);
u_inf=floor(Min_e);
u=[u_inf:ris:u_sup];
v=[v_sup:-ris:v_inf];
[Xq,Yq] = meshgrid(u,v); 
Zq=zeros(length(v),length(u));
%interpolazione
Vq = griddata(points(:,1),points(:,2),points(:,3),Xq,Yq,metodo);
% Plot immagine interpolata
close all
figure(1)
surf(Xq,Yq,Zq,Vq,'EdgeColor','none')
title(['Immagine interpolata con metodo ' metodo ' e risoluzione ' num2str(100*ris) ' cm'])
colormap gray
colorbar
caxis([0 1])
axis equal
xlabel('est (m)')
ylabel('nord (m)')
view(2)
[U,ia,ic] = unique([points(:,1) points(:,2)],'rows');
savefig(figure(1),fullfile(mydir,folder,Namefile),'compact');
end

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Answer 1

Pratik 2024-2-14

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1616700-is-it-possible-to-convert-a-function-containing-a-plot-into-c-code#answer_1408498

Hi Valeria,

As per my understanding, you want to convert your MATLAB function to C++ code so that data can be presented in same manner as it gets displayed in MATLAB but from C++ code.

To convert a MATLAB code to C++ code, MATLAB coder can be used. Alternatively to achieve same functionality as the MATLAB code from C++ interface, C++ Engine API can be used to call MATLAB function from C++ code.

Please refer to the documentation of MATLAB coder for more information:

www.mathworks.com/help/coder/index.html

Please refer to the documentation of C++ Engine API for more information on using the MATLAB C++ Engine API to call MATLAB from C++ programs:

www.mathworks.com/help/matlab/cpp-engine-api.html

I hope this helps!