To change the rulers zero points
The default zero point for each ruler is at the top-left corner of the
illustration area. To change the zero point, drag from the intersection
of the rulers. As you drag the zero point, intersecting lines follow the
pointer. To return the rulers to the default zero point, click the box
where the rulers intersect.
To use tear-off rulers
When rulers are displayed, you can move a copy of a ruler into the
layout area to measure specific areas of an illustration. When you tear
off a ruler and move it, Canvas takes a snapshot of the ruler and
pastes it into the document as a paint object. A tear-off ruler isnt
active like the rulers displayed at the window edges.
To place a tear-off ruler in a document: Point to the ruler you
want to tear off, press Option (Mac) or Alt (Windows) and drag a
copy of the ruler into the document.
Using the alignment grid
You can display a grid of vertical and horizontal lines to aid in posi-
tioning objects in a document. You can also turn on the snap-to-grid
feature to make Canvas snap objects into alignment with the grid
when you drag near a grid line.
When snap-to-grid is active, the pointer movements snap to the grid
according to the settings in the Grids dialog box.
To display grid lines on screen: Choose Layout > Display >
Show Grids. To turn off grids, choose Layout > Display > Hide
Grids.
To turn on snap-to-grid: Choose Layout > Snap To > Grid.
Choose the command again to turn off snap-to-grid.
To temporarily override the grid constraint: Press Tab as you
create, resize, or move objects.