potential field in robotics

Respected Sir,

I am doing simulation in multi-robot systems in netbeans simulator., I want to plot potential field path planning graphs for robots in matlab for results of simulation. I have attached simulation images and want to plot path planning matlab graphs for these images. I have also attached matlab graphs images of my simulation which i think does not match with netbeans. Could you help me out to obtain similarity between netbeans simulation and matlab graphs. I have also attached matlab potential field path planning code in document.

Thank you