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Changing
arc attributes
To create an arc, use the
An arc is a portion
of a circle
(ellipse).
Since a full ellipse
is 360 degrees
am tool from the Dra_ng
around,
a 90 degree
arc is exactly
one quarter
of an ellipse;
a 180 degree
arc
too/bat,
is half of an ellipse.
All angles are measured
from b_isGpodilion: [_
You can set the precise size (in degrees)
of the starting angle and ending
angle
of any arc. You can also.specify
whether you would like your arc's end
points connected
by radii or by a chord. The following illustration shows
angle conventions
used in Drawing and what radii and chord connected
arcs
look like.
Connected by radii
Connected by chord
I
r_-I
[-_-i
r',rl
I
b
m
ch!rd
• To change arc attributes:
1. Select one or more arcs to change.
2. Select Arcs from
the Atuibutes
menu.
The dialog
box on the left appaccrs.
3. Fill in the dialog
box, changing
the options
you want:
* Starting
Angle.
Select
the starfin" g angle.
You can specify
from zero
-
-(0) to 360-degi:e_induSive.
'+
• Endimtg_mgle.
Select
the ending
angle.
You can specify
from zero
(0) to 360 degrees,
inclusive.
_.
• End
Points
Cotanccted.
Select
whether
you want
the end
points
connected
by a chord
or two radii.
4. Click on Apply.
5. Click on Close.
Modifying
a line
You can use the tools
on the Attributes
tool bar to set or change
the line
tone, shading,
and thickness
of a line or border
of a graphic
object,
or you
can use the Line Attributes
dialog
box.
• To add Tone to a line:
1. Select
one
or more
lines or graphic
objects.
2.
Click on the Line Tone
tool. A horizontalpop-up
menu
appears.
3.
Select the tone you wanL Drawing
applies
the line tone.
Drawing
139
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