Datasheet

One overlooked feature of the FILLET command is its ability to quickly close two par-
allel lines with a tangent arc. Select both lines, and AutoCAD will calculate the size of an
arc that it will use to join them on the end nearer your selection.
DTEXT
Most justification options are logical. Every line of text has four vertical locations for justi-
fication: Top, Middle, Baseline, Bottom, in that order. The Bottom is a line running
through the lowest point on a lowercase letter with a descender (j, g, p, y). These locations
are shown in Figure 1.14. The Justify options of DTEXT are [Align/Fit/Center/Middle/
Right/TL/TC/TR/ML/MC/MR/BL/BC/BR]. The two-letter combinations match the locations: TL
is Top Left, ML is Middle Left, and so on.
Extracting Information from Drawings
You can use geometry created in AutoCAD to get information accurate to 15 decimal
places. However, the information you get out of AutoCAD is only as good as the accuracy
of the geometry you create. Following are some tips on using inquiry commands.
AREA
It’s easier to work with circle, pline, or region entities when determining areas, particularly
if you’re trying to add or subtract areas to get a final total. This section will give you some
advice about using other entities to create plines or regions so you can easily find their areas.
Figure 1.14
Understanding
DTEXT justification
options
Figure 1.13
Circle TTR for
tangent arcs
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