Creeping Ray Tracing Algorithm for Arbitrary NURBS Surfaces Based on Adaptive Variable Step Euler Method

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/ijap/volume-2015/604861/figures/604861.fig.0011a.svgz" name="604861.fig.0011a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Proposed method</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/ijap/volume-2015/604861/figures/604861.fig.0011b.svgz" name="604861.fig.0011b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Euler method</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/ijap/volume-2015/604861/figures/604861.fig.0011c.svgz" name="604861.fig.0011c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Euler method</td></tr><tr class="fig-image" id="d"><td><object data="https://static.hindawi.com/articles/ijap/volume-2015/604861/figures/604861.fig.0011d.svgz" name="604861.fig.0011d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>Euler method</td></tr></table>

<div>Creeping ray tracing on sphere.</div>

International Journal of Antennas and Propagation

fig11

Figure 11

Figure 11: Creeping Ray Tracing Algorithm for Arbitrary NURBS Surfaces Based on Adaptive Variable Step Euler Method 