Graphics Reference
In-Depth Information
Holding the Shift key with either of these arrow keys will add the corresponding loop to the selection.
This effect is like expanding the selection in one direction. This is useful when two adjacent loops need to
be selected. Be aware that if you decide to add an additional loop on the other side of the selected loops, you
will have to press the corresponding arrow key enough times to cross over any already selected loops.
Using Polygon Statistics in Selections
In addition to manually selecting (and deselecting) polygons, this task can be handled based on sets of poly-
gons (selection sets and material tags are the most common). In the Lists tab, there is a heading labeled
Statistics. From here, all elements can be accessed based on their attributes. This can be useful when poly-
gons that need to be selected are in close proximity to other polygons with different materials or selection
set assignments (selection sets are covered later in this chapter). By using the addition and subtraction func-
tions for the elements in the Polygon heading of the Statistics, manual selections can be easily refined. This
exercise illustrates the usefulness of these sets:
1. Create a new rectangle (cube) with x and z dimensions of 1 m and 20 segments in each of these axes.
2. Make a square selection in the center of the plane and assign a new material, as shown in Figure
9-10 .
Figure 9-10: A new material is assigned to an 8×8 polygon section in the middle of the plane.
 
 
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