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MEASUREMENTS > Proportions and Divisions - Pg. 25

MEASUREMENTS Methods of Measuring . . . Now that we understand the basics of one- and two-point perspective, it is time to discuss how to make proportions correct by measuring. In all drawings, care must be taken to insure that the proportions are correct. In order to do this we must be aware of some methods of measuring not only the object, but areas within the object. For instance, the top of the cube must be the right size and shape in comparison to the sides and front. Al I objects are relative to one another and can be measu red against each other. For example, if there is a cup and a large book on a table in a roomful of objects, we would start with the cup. By drawing the cup correctly, we could then compare the book to it. How many cups wide and tall is the book? Then, how many books tall and wide is the table? Then how many tables wide and tall is the room, and so on. With this method, we can draw everything seen by starting with the smallest object and progressing to the largest. There are a number of ways to make measurements, but the first order of business for the geometric method is to establish the vanishing point or points and the correct angle and elevation of view. These then establish the horizon line. If this is not done, the exercise will just be a guessing game and there will be no way to prove the correctness of the subject. Here is a simple method of making measurements: The visual method of measuring is to use your pencil and thumb. Always hold the pencil straight out at arm's length as this is always constant. Use your thumb and measure a small object. Then, using that known measurement, draw several larger objects by counting how many of the small objects fit into the