To fill space completely without leaving gaps This may refer to space of any number of dimensions, and sometimes different surfaces too, for example you can tessellate the surface of a sphere
(Scwhartzman) cover the plane with a pattern in such a way as to leave no region uncovered
Of one or more two-dimensional shapes, to completely fill (an area) when multiple copies are placed edge to edge
Of a two-dimensional shape, such that multiple copies of itself placed edge to edge cover an area leaving no space between the shapes
(v ) To divide a curve or surface into geometric forms to calculate their shapes and dimensions for simplified processing and rendering Many systems tessellate quads, which are not always planar, into triangles, which are definitively planar