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plotter. If the plotter does not support dithering, the dithering setting is
ignored.
The most common reason for turning off dithering is to avoid false line typing
from dithering of thin vectors and to make dim colors more visible. When
you turn off dithering, colors are mapped to the nearest color, which limits
the range of colors used for plotting. Dithering is available whether you use
the object's color or assign a plot style color.
NOTE Dithering disables merge control.
Convert to Grayscale
When you select Convert to Grayscale, the object's colors are converted to
grayscale if the plotter supports grayscale. Light colors, such as yellow, are
plotted with light gray values. Dark colors are plotted with dark gray values.
If you clear Convert to Grayscale, the RGB values are used for the object's
colors. Conversion to grayscale is available whether you use the object's color
or assign a plot style color.
To assign a plot style color
1 Click Format ➤ Plot Style.
2 Right-click a CTB or STB file. Click Open.
3 In the Plot Style Table Editor, Table View tab, click the Color field for the
plot style you want to change.
4 On the Color drop-down list, click the color you want to use or click
Select Color to display the Select Color dialog box and do one of the
following:
■ On the Index tab, click a color or enter the ACI color number (1-255)
or name in the Color box. Click OK.
■ On the True Color tab, in the Color Model box, specify a color. (Enter
a color value in the Color box or specify values in the Hue, Saturation,
and Luminance boxes.) Click OK.
■ On the Color Books tab, in the Color Book box, select a color (use the
up and down arrow and click on a color chip.) Click OK.
1232 | Chapter 30 Print or Plot Drawings