User Guide

RISA-3D User’s Guide
Version 5.0
56
Making Changes to Selections
Now click the Unselect All button, to unselect the entire model. Then click
the button to change the model view to an XY. Then click to maximize
the view plane.
Click the Line Select
button.
Your cursor changes to indicate that you are now in the line selection mode.
Click and hold your mouse button to create the start of your selection line near the
left most truss web member. Move your cursor past the right most web member
and release the mouse button.
All of the truss web members should now be selected. We will use our current
selection state to easily modify the members. Notice that the section set for all of
our web members is listed as “Chord”. This is because we only had one wood
section set available to us when we first drew our truss. In the next section we
will use the current selection state to easily modify these members.
Make sure that the
button has been pressed and that the Drawing Toolbar is
active.
The Drawing Toolbar has different graphic editing features, some “insert” new
data such as new beams or distributed loads. Other options help “modify” items
that already exist in the model. Likewise the menu at the top of the screen has an
Insert menu and a Modify menu. We will use the Modify tools to help us rotate
our columns.