454 Interiors Copyright Goodheart-Willcox Co., Inc. Paraline Drawings Clients understand three-dimensional drawings much better than two dimensional drawings, such as floor plans. Perhaps that is because since infancy, their view of the world has been viewed in three-dimensions. Paraline drawings are simple, easy, and accurate three-dimensional drawings that allow the viewer to see multiple surfaces of an interior. Paraline draw- ings typically represent an aerial view of the interior. Another name for a paraline drawing is an axonometric projection or axon. Paralines are constructed by the simple rotation and projection of the floor plan. The length and width of the paraline drawing is the same as the floor plan. In addition, the floor-plan scale is the same for the paraline. All vertical lines, drawn up from the floor plan, are parallel to each other. Height of vertical lines should mimic the intended height of the walls, architectural elements, and furniture (if desired). The most common paraline is the isometric drawing. Less distorted than other paralines, the isometric drawing is a three-dimensional drawing with three axes, each at a 30-degree angle, Figure 13-26. An isometric drawing communicates how one space or form relates to another. This is very helpful for a client to see. The disadvantage of isometric drawings is that humans view real life spaces in perspective and the isometric drawing does not take into account adjust- ments needed from a perspective viewpoint. Common usage for isometric drawings is in construc- tion drawings. Because the basis of isometric drawings is the floor plan, a designer can create one using CAD or BIM software with the push of a button. They are also relatively easy to hand draw because the floor plan determines many of the measurements. Perspective Drawings Interior designers use perspective drawings more often than paralines. Perspectives drawings describe three-dimensional volumes and relationships of space in a two-dimensional realm. They allow a single, more realistic looking image of an interior space. The viewer gains a sense of perspective as drawn lines converge as they recede into the depth of the drawing—similar to looking down a set of railroad tracks. The object appears smaller as the distance from the viewer increases. The designer always draws vertical lines vertically. Horizontal lines above eye level will slope up, and all horizontal lines below eye level will slope down. The designer can manually draw perspective drawings, technically draft- ing them using a straightedge—such as a ruler, and generate them digitally. Jim Dawkins Figure 13-26 The most common paraline (axon) drawing is the three-dimensional isometric drawing with each of the three axes at a 30-degree angle.