User Guide

Canvas 12 User Guide
The Mode option is used for rendering all the effects applied to an object; e.g., if you choose
Grayscale, the object and effects applied to it will appear in gray shades on screen and when the
object is printed or exported.
Select a mode that is appropriate for the medium you use. RGB is best for Web graphics, screen
display, and output to a film recorder. CMYK is appropriate for process-color printing and color
separations for commercial printing. Grayscale is appropriate for black-and-white publishing.
None is available in the mode menu only when the selected object is a lens that has no effects applied
to it; however, the lens can have a magnification value and remote viewpoint.
If you select None, the lens object is not rendered for printing or export. This can be more efficient
and produce better output when a lens displays vector objects or high-resolution images. This option
is useful if you use lenses without effects to show close-ups or call-outs of diagrams.
Resolution
Enter the resolution in ppi for rendering SpriteEffects. A high resolution makes effects appear
smoother; however, higher resolution requires more memory and slows down printing.
For Web graphics and screen display, 72 ppi is recommended. For office printing, 100 to 200 ppi is
usually sufficient. For commercial printing, a range of 150 to 300 ppi is recommended for halftone
images, depending on the paper and press requirements.
Anti-Alias
Select this option if you want to smooth the edges of objects in the rendering of SpriteEffects.
Selections masks
In the Effects list, a symbol to the left of each effect name shows the state of the selection mask for
the effect. You can click the symbol to toggle the mask on ( ) and off ( ).
An active selection mask defines a selection for an effect. The selection will include objects, not
empty space. The mask can preserve transparent areas, such as empty space in a group object, and
space between text characters.
When the selection mask is on, the effect is based on the selection area. When the selection mask is
off, the effect is based on the entire bounding box area; e.g., if you apply the Add Noise command to
a circle, the selection includes only the circle, so the noise affects only the circle if the mask is on. If
the mask is off, the noise appears in the entire bounding box area.
656