Graphics Programs Reference
In-Depth Information
Copying an Object Multiple Times
Let's explore the tools that let you quickly duplicate objects. In this section, you'll begin to draw
parts of a small kitchen. The first exercise introduces the Array command, which you can use to
draw the gas burners of a range top.
As you'll see, an array can be either in a circular pattern, called a
polar array
, or a matrix of
columns and rows, called a
rectangular array
.
Making Circular Copies
To start the range top, first set the layer on which you want to draw, and then draw a circle rep-
resenting the edge of one burner:
1.
Set the current layer to Fixture by right-clicking on the Fixture layer from the Layers pal-
ette and selecting Set Current.
2.
Click the Center, Radius Circle tool on the Tool Sets palette. You can also choose Draw
Circle
Center, Radius from the menu bar, or type
C
↵.
3.
At the Specify center point for circle or [3P/2P/Ttr (tan tan radius)]: prompt,
pick a point at coordinate 4´,4´. Metric users should pick a point at coordinate 120,120.
4.
At the Specify radius of circle or [Diameter]: prompt, enter
3
↵. Metric users
should enter
7. 6
↵. The circle appears.
Now you're ready to use the Array command to draw the burner grill. You'll first draw one
line representing part of the grill and then use the Array command to create the copies:
1.
Zoom into the circle you just drew and then make sure the Snap mode is off by checking
the Snap Mode button in the status bar.
2.
Draw a 4˝ line starting from the coordinate 4´-1˝,4´-0˝ and ending to the right of that point.
Metric users should draw a 9 cm line starting at coordinate 122,120 and ending to the
right of that point.
3.
Adjust your view so it looks similar to Figure 6.1.
FIGURE 6.1
A close-up of the
circle and line
