Datasheet

worKinG with objects
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Notice that the icon highlights in blue and changes to one showing a cube that’s completely
within a dotted rectangle. This tells you that you are now in Window Selection mode.
3. Click on a point above and to the left of the front left chair in the foreground, as shown in
Figure 1.36.
4. Drag the rectangle down and to the right until it completely encompasses the two chairs
in the front, as shown in Figure 1.36. Then release the mouse button. Notice that the only
objects selected are the two chairs on the left.
When you use Window Selection mode, only objects that are completely within the selec-
tion window are selected. Unlike with the crossing window, objects that are partially inside the
selected window are omitted from the selection.
You can use the Ctrl key in conjunction with any selection method to continue to add more
objects to your selection set. You can also remove objects from your selection set by using the
Ctrl key. Let’s see how adding and subtracting from selections works:
1. Switch back to the Crossing Selection method, and then Ctrl+click and hold a point below
and to the right of the chair near the bottom of the viewport, as shown in Figure 1.37.
Notice the small plus (+) sign next to the cursor indicating that selected objects are to be
added to the current selection set.
2. Drag the window up and to the left so that it encloses a portion of the two chairs on the
right. Then release the mouse button. Now all four chairs are selected.
3. Hold down the Ctrl key and then click the chair in the upper right of the screen, as shown
in Figure 1.38. Now all chairs except the upper-right one are selected.
Figure 1.36
Placing a Window
Selection window
Click and drag from here
to here
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