CPP code modification and subsequent implementation in MATLAB

An existing C++ code is being used to simulate the acidization of a rock sample. The code outputs multiple .ppm (image file), .vtk (paraview file) & .dat files which are then visualized with a simple visualization software. The existing code outputs these files after every 100 iterations. It also outputs the .dat file in a non-tabular format. I want a few changes in the code to make it perform the following actions: 1. Instead of outputting the files very 100 iteration, I want it to output these files every 60 or 120 seconds, irrespective of the number of iterations that are performed in that time. 2. The code outputs velocity fields (velocity vectors in 2D). I want the .dat files to be in tabular format to show time, (x & y magnitude of velocity of the acid) and (x and y coordinates of the vector). For the next part: 1. Plot streamlines in MATLAB from the velocity field data. The C++ code file that I have attached uses a library called Palabos. You can download both the code and the Palabos library from attached files. Helpful tips to run the simulation: 1. Open codeblocks > open existing project > (palabosv1.5-r1>codeblocks>[login to view URL]). 2. From management tab >Palabos, delete examples, right click on palabos, add files recursively and add 3.lb_reactionScheme folder. 3. Build and then run.