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Perspective charts are excellent for developing quick sketches. Eight easyto-use charts comprise the set of Lawson perspective charts. Charts 1 through 4 are more suitable for drawing interiors and elements within the interior space, such as furniture. Charts 5 through 8 are usually used for exterior views or large-size subjects. The 45° two-point chart shown here lends itself to views showing two interior walls with equal emphasis. The one-point perspective chart shown below emphasizes one important (parallel) side, with two other sides of secondary interest.
Use the bold vertical measuring lines given on all charts to measure and project true heights. The true heights are then projected on axial lines along trueheight vertical grid planes and eventually into the perspective view. Circles and noncircular curves can be constructed using plotted points on the grid. The recommended value for general work in the metric system is 15 cm (6") per unit; for drawing interiors, it is 12.5 cm (5") per unit. Use smaller units (5 cm or 3" per unit, etc.) for small furniture objects.
Lawson Perspective Charts: Courtesy of John Wiley & Sons, Inc.
PERSPECTIVE GRID CHARTS
Sample Perspective Charts