Division

Illustrator Draftsman 3 & 2 - Volume 2 Standard Practices and Theory
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Division Introduction When you want two unequal portions or more than two equal portions of a line, you are dividing not bisecting. One of the most frequently executed geometric constructions is dividing a line into multiple equal or proportional parts. Preferred method for To divide a line into equal parts, use this table: dividing lines into equal parts Step 1 2 3 4 5 Action Given line AB, draw a perpendicular line (BC). Place a scale or ruler with the first increment (0) at A. Place the desired increment on the scale at the termination point of the perpendicular line (BC). Make tiny pencil marks indicating the desired measurements along the scale. Draw vertical construction lines perpendicular to the given line and parallel to each other. This divides the line into multiple equal increments. Figure 2-20 shows the steps for the preferred method of dividing a line into multiple equal increments. Figure 2-20.—Dividing a line into equal parts. Continued on next page 2-21

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