Add octave github action

.github/workflows/github-opengjk-examples.yml

@@ -23,3 +23,11 @@ jobs:
         with:
           go-version: 1.15
       - run: cd examples/go/openGJK && go build && go test -v
+
+  Run_Octave_example:
+    runs-on: ubuntu-latest
+    container: gnuoctave/octave:7.3.0
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v3
+      - run: cd examples/matlab/; run runme.m

examples/matlab/main.m

@@ -32,7 +32,8 @@ B = -A;
 dist = openGJK( A, B ); 
 fprintf('The minimum distance between A and B is %.2f\n',dist);
 
-% VISUALISE RESULTS
+% VISUALISE RESULTS ONLY IN MATLAB
+if(exist('OCTAVE_VERSION', 'builtin') == 0)
        % .. create new figure
        figure('units','centimeters', 'WindowStyle','normal', 'color','w',...
        'Position',[0 8.5 9 6],'defaultAxesColorOrder',parula,...
@@ -60,3 +61,4 @@ surf(x.*dist/2,y.*dist/2,z.*dist/2,'facecolor',[.9 .9 .9],...
        view(42,21)
        % ... add light
        light('Position',[5 -10 20],'Style','local'); 
+end

examples/matlab/runme.m

@@ -35,29 +35,14 @@ else
     silflag = '-v';
 end
 
-% TRY COMPILING MEX FILE
-fprintf('Compiling mex function... ')
-try
-mex(fullfile('..','..','openGJK.c'),...  % Source of openGJK 
+% COMPILE MEX FILE
+mex(fullfile('..','..','openGJK.c'),...
     '-largeArrayDims', ...      % Support large arrays
-    optflug, ...                % Compiler flag for debug/optimisation
-    fullfile('-I','..','..','include'),...      % Folder to header files
-    '-outdir', pwd, ...         % Ouput directory for writing mex function
+    optflug, ...
+    ['-I',fullfile('..','..','include')],...      % Folder to header files
     '-output', 'openGJK',...    % Name of ouput mex file
     '-DMATLAB_MEX_BUILD',...  % Define variable for mex function in source files
-    silflag )                   % Silent/verbose flag
-
-    % File compiled without errors. Return path and name of mex file
-    fprintf('completed!\n')
-    fprintf('The following mex file has been generated:')
-    fprintf('\t%s\n',[pwd,filesep,'openGJK.',mexext]) 
-catch
-    % Build failed, refer to documentation
-    fprintf('\n\n ERROR DETECTED! Mex file cannot be compiled.\n')
-    fprintf('\tFor more information, see ')
-    fprintf('<a href="http://www.mathworks.com/help/matlab/ref/mex.html">this documentation page</a>.\n\n')
-    return
-end
+    silflag )
  
 % RUN EXAMPLE
 fprintf('Running example... ')