Graphics Programs Reference
In-Depth Information
gives the true ratios of some of the standard scales used in architecture and con-
struction. When using metric units, the scales are simple ratios (1:50, 1:100, and
so on).
tABLE 11.1 Standard Scales and Their Corresponding Ratios
Scale
true Scale Factor
1 = 1 -0
12
½ = 1 -0
24
¼ = 1 -0
48
1 8 = 1 -0
96
1 16 = 1 -0
192
The scale is traditionally written by mixing inches with feet in the expression,
which causes some confusion. For example, the third scale in the table, com-
monly called quarter-inch scale, shows that a quarter inch equals one foot. A
true ratio of this scale must express the relationship using the same units, as in
¼ = 1 -0 . Simplifying this expression to have no fractions, you can translate
it to, say, 1 = 48 . This is how you arrive at the true scale factor of 48, or the
true ratio of 1:48. The exact method for calculating this ratio can be found in
Chapter 8, “Controlling Text in a Drawing.”
As you continue through this chapter, take special note of the various scale
factors used for different hatch patterns.
Hatching the Rest of the South Elevation
You'll apply hatches to the foundation, support posts, wall, and ground. You'll
then work with some special effects.
using a Concrete Hatch on the Foundation
Follow these steps to hatch the foundation:
1. Open 10A-FPLAY5.dwg if it's not already.
2. From the Home tab Layers panel set the current layer to A-ELEV-
FNDN-PATT.
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