24scaling a model
Scaling is a fairly straightforward process requiring simple multiplication and division. To begin, we need two things: a blueprint of the original object and a point of reference that will determine the resulting size of our model.
A blueprint is a technical drawing that typically includes a front, side, rear, and top view, as Figure 24-1 shows. We’ll want to find blueprints whose views show the object at the same scale.
A proper blueprint shows only the important edges of the object, without any filling, shading, colors, or textures. Figure 24-2 shows the same object with and without the central perspective—that is, a “vanishing point.” As you can see, perspective can distort the image and thus affect the measurements ...