Isometric Sketch is defined by which property?

Isometric Sketch is defined by which property?

• A. A form of pictorial sketch in which vanishing points are used to provide depth.
• B. All three drawing axes form equal angles of 120 degrees with the plane of projection.
• C. A drawing showing height, width, and depth in a single view.
• D. A drawing that shows views projected onto two or more orthographic planes.

Answer: (B)

Isometric sketches rely on a parallel projection where the three principal directions are shown with equal emphasis on the page. The defining feature is that the three drawing axes appear equally spaced at 120 degrees from each other in the projection, which makes lines parallel to each axis remain parallel and gives all three dimensions a similar foreshortening. This is what gives the distinctive isometric look, in contrast to perspective drawings that use vanishing points (which create convergence) or orthographic multi-view drawings that project views onto separate planes. While an isometric view does present height, width, and depth in one view, the 120-degree axis spacing is the key property that sets it apart.

Isometric sketches rely on a parallel projection where the three principal directions are shown with equal emphasis on the page. The defining feature is that the three drawing axes appear equally spaced at 120 degrees from each other in the projection, which makes lines parallel to each axis remain parallel and gives all three dimensions a similar foreshortening. This is what gives the distinctive isometric look, in contrast to perspective drawings that use vanishing points (which create convergence) or orthographic multi-view drawings that project views onto separate planes. While an isometric view does present height, width, and depth in one view, the 120-degree axis spacing is the key property that sets it apart.