Methods for editing the grid include changing the grid angle, adding grid lines, deleting grid lines, moving grid lines, subdividing elements and “smoothing” the grid.
The grid angle can be changed in two ways. First, the user can
choose Grid|Specify Grid Angle... The Grid
Angle dialog box (p. 35)
will appear in which the user can specify the
grid angle. Another way is to choose Grid|Drag to Rotate
or click on the Drag to rotate grid button .
Then the user clicks down on the top view of the model and moves the
cursor before releasing the mouse button.
To delete a grid line, the user selects Grid|Delete Grid
Line or clicks the Delete grid line button .
Then the user moves the cursor over the grid line to be deleted.
When the cursor is over a grid line, it will change from an arrow to an
X. If the mouse button is clicked at that point, the grid line
will be deleted.
To add a grid line, the user selects either Grid|Add
Vertical Grid Line or Grid|Add Horizontal
Grid Line or clicks on the Add
vertical grid line
or Add horizontal grid line
buttons. Then the user moves the cursor over one of the views of
the model. The cursor will change to a line parallel to one of
the edges of the grid. When the user clicks the mouse, a new grid
line will be added at the position where the mouse was clicked.
To move grid lines, the user first selects Grid|Move Grid
Line or clicks on the Move grid line button .
The user next moves the cursor over one of the views of the
model. When the cursor is over a grid line, the cursor will
change shape so that it resembles the picture on the Move grid line
button. Then the user clicks down the mouse button, moves the
cursor, and releases the mouse button. The grid line that was
under the cursor when the mouse button was depressed will be moved to
the location where the mouse button was released.
Additional methods of editing the grid are described in “Subdivide Columns, Rows, and Layers Dialog Box” (p. 34), “Set Widths of Columns, Rows, and Layers Dialog Box” (p. 35), “Grid Angle Dialog Box” (p. 35), “Generate Grid Dialog Box” (p. 36), “Smooth Grid Dialog Box” (p. 37), and “Grid Spacing Dialog Box” (p. 36).