Autodesk 00126-050008-1640A User Guide - Page 133

WiseImage - User's Guide Floodfilling Here the selection window is defined by the same points as in the two previous cases. However, using the Floodfilling selection type, you select all raster object parts - the entire raster, as shown in the figure, and the deletion deletes everything. Comparing Within Window selection methods As in the first example, in this example we will select a raster using the Within Window method with different raster selection types. When you select a raster with the Within Window method, you should click on two opposite corners of a rectangular area. The program selects all raster data that lies entirely inside the area, and then finds those raster objects that cross the area boundary and removes them from the selection set. The figures below show selected raster objects as outlines. The selection window is displayed as a dashed rectangle. Object Type Recognition The program selects a character, circle and rectangle that lie inside the selection window. Note that the entire raster lines crossing the selection window boundary are excluded from the selection. Line Following When you use the Within Window method based on the Line Following algorithm, the selection includes raster character "A", circle, rectangle and the parts of raster lines between the raster rectangle and circle. The program does not select the parts of raster lines from the window boundary up to their first nodes - where lines intersect the raster rectangle. 136