Curves and circles in perspective (Continued)

Curves and circles in perspective (Continued) - 14276_290

Dividing a receding plane or surface into equal parts

Illustrator Draftsman 3 & 2 - Volume 2 Standard Practices and Theory
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Perspective Practices, Continued Curves and circles in perspective (Continued) Drawing curves and circles in two-point perspective is similar to drawing in one-point perspective except for the additional vanishing point. Figure shows the circle in two-point perspective. Figure 5-21.—The circle in two-point perspective. Dividing lines Sometimes you need to divide a line or area into a number of parts. The key or receding to most division of space problems in perspective is the vertical or horizontal area into parts in perspective line parallel to the picture plane. To divide a receding plane into equal areas, use this table: Step Action 1 Divide the left vertical (AO) into equal parts with a ruler or scale. 2 From these points, draw lines to the vanishing point (figure 5-21, view A). 3 Draw a diagonal from point A to point (figure 5-21, view B). 4 Where the diagonal and receding lines intersect, draw vertical lines. This divides the receding plane into equal units. Continued on next page 5-29

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