I use streamline formalism defined in papers of Datta-Gupta and build time-of-flight field using fast level set approach as defined in papers of J.A.Sethian. Then I tried several techinques to generate grid based on time-of-flight field. The best result I got implementing force-based graph layout algorithm where forces are proportional time of flight value. This work is stuck because I have to concentrate my effort on the different task, I did not touch this work more over the year.