Autotek autocad raster design 2010 用户手册

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Smart crossing polygon
smart crossing window A selection method for enhanced bitonal region
objects. This method selects all raster entities that lie within or cross into the
rectangular window that you draw. If any part of the entity crosses the window
boundary, the entire entity is selected. In the following example, note that
two horizontal lines that cross the window boundary are selected.
Smart crossing window
smart fence A selection method for enhanced bitonal region objects. This
method selects all raster entities that touch a selection polyline (fence) that
you draw. Entities enclosed by the fence but not touching it are not selected.
In the following example, the text 8.94 is not selected because it does not
touch the fence.
Smart fence
smart window A selection method for enhanced bitonal region objects. This
method selects only the raster entities that lie entirely within the rectangular
selection window. In the following example, the arrow and number within
Glossary | 397