Ключевые слова: array, axis, background, blank, block, blueprint, calibration, cell, checker, checkered, coordinates, crisscross, cross, crosscut, crosshatch, density, divide, empty, geometric, graph, graphpaper, grate, grid, intercross, interlace, intersect, intersecting, lattice, line, mathematics, mesh, millimeter, mm, mosaic, net, netting, paper, pattern, perpendicular, plotting, rectangular, regular, section, square, texture, tile, wireframe,