与 mex 文件关联的未定义函数

Question

我正在使用 Matlab 代码（不是我开发的）调用与 mex 文件关联的函数（它们具有相同的名词）。但是，我收到一条错误消息，指出该函数未定义。

在调用这个函数之前是否应该执行指定的命令？（我正在使用 MAC OS X 和 Matlab R 2016a）。

这是代码，错误在调用函数 fastmarchmex 的行（我记得 fastmarchmex.mexw64 和 32 在当前文件夹中）：

rootdir  = fileparts(mfilename('fullpath'));
addpath(fullfile(rootdir,'util'));
addpath(fullfile(rootdir,'sihks'));

load(fullfile(rootdir,'shapes','0001.scale.1.mat'),'shape'
%%-------------------------------------------------------------------    
%% SIHKS signature
%%-------------------------------------------------------------------
fprintf('preprocessing');
shape.idxs    = compute_vertex_face_ring(shape.TRIV');
ndesc         = 5;
[desc,shape] = signature(shape,'sihks');
fprintf('.');

%%-------------------------------------------------------------------
%% ISC settings
%%-------------------------------------------------------------------

rad     = 10;   % radius used for descriptor construction
nbinsr  = 5;    % number of rings
nbinsth = 16;   % number of rays

rr      = [1:nbinsr]/nbinsr*rad;
th      = [1:nbinsth]/nbinsth*2*pi;

fhs     = 2;         %% factor determining hardness of scale 
quantization

fha     = .01;       %% factors determining hardness of angle 
quantization

**shape.f_dns      = fastmarchmex('init', int32(shape.TRIV-1),         
double(shape.X(:)), double(shape.Y(:)), double(shape.Z(:)));**

vertex                                = 701;
shape                                 = 
fast_marching(vertex,shape,'vertex',0,1,shape.f_dns);

[in_ray,in_ring,shp,geod,directions]= get_net(shape,vertex,'scales',
[0,rr],'N_rays',length(th),'fhs',fhs,'fha',fha);

[dec_net] = get_descriptor_from_net(in_ray,in_ring,desc,shape.Av); 
fastmarchmex('deinit', shape.f_dns);


%% end of code, visualization of results 
a = -82.5000;
v = 18;

dind = 1;
figure(1); clf;  show_shape(shape,desc(:,dind));
hold on,scatter3(geod{1}(1,1),geod{1}(2,1),geod{1}
(3,1),'filled','SizeData',150,'Cdata',[1,0,0])

for k=[1:length(geod)]
   hold on;
   h = plot3(geod{k}(1,:),geod{k}(2,:),geod{k}(3,:));
   set(h,'Color',[0 0 0],'LineWidth',2);
end
for r = [1:length(rr)]
   plot_ring(shape,rr(r));
end
title('Net around vertex')
view(-82.50,18)

figure(2); clf; plot_polarhist(squeeze(desc_net(dind,:,:)),rr,th,0);

Answer 1

MATLAB R13 及更高版本，支持 Mac OS X，使用 .mexmac 扩展名在 Mac. 所以，你应该为 Mac 重新编译你的 Mex 文件，现在你有 Windows 版本

与 mex 文件关联的未定义函数

undifined function associated to a mex file

matlab

mex