These are called even and odd points of the grid. The ascending tetrahedrons are in the direction of the negative axes and the descending tetrahedrons

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These are called even and odd points of the grid. The ascending tetrahedrons are in the direction of the negative axes and the descending tetrahedrons are in the direction of the positive axes, vintage line drawing or engraving illustration.

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Size: 5000px × 4270px
Photo credit: © Patrick Guenette / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: art, axes, black, called, direction, drawing, engraved, engraving, grid, illustration, line, negative, odd, points, positive, tetrahedra, vector, vectors, vintage, white