NEW METHOD FOR JUDGING CARTESIAN GRID VERTICES INSIDE OR OUTSIDE ARBITRARILY GEOMETRIC BODIES
Zhi Li · Acta Aeronautica Et Astronautica Sinica · 2002
A new method is presented in this paper for judging if Cartesian grid vertices are inside or outside arbitrarily geometric bodies on the 2 dimensional plane. As an example, a 27×15 lattice is tested for judging the relations between the positions of its elements and those of three isosceles triangles. The calculated result shows that the presented method is precise , efficient and flexible. And it can be easily extended and applied to more complex 3 dimensional cases.