Autodesk 00126-050008-1640A User Guide - Page 127

WiseImage - User's Guide Style Crossing Window Within Polygon Crossing Polygon Fence Line Arc Circle Symbol Picking procedure Draw a selection window Draw a selection polygon Draw a selection polygon Draw a crossing line Specify rubberline endpoints Specify three points: start, arbitrary middle and end points of a rubberarc Specify endpoints of the rubbercircle diameter Specify an object Raster data selected Inside the window including raster objects crossed by its boundary Inside the polygon excluding raster objects crossed by its boundary Inside the polygon including raster objects crossed by its boundary All raster objects that cross the fence The raster line under the rubberline The raster arc under the rubberarc The raster circle under the rubbercircle Raster symbol corresponding to one of the specified objects rSelect option CWindow WPolygon CPolygon Fence Line Arc Circle Symbol Raster Objects and Selection Types Object raster selection methods are based on algorithms that analyze raster objects. The raster object concept may be interpreted in different ways. The program works with raster objects of three different types: · isolated raster object - raster area (contiguous set of raster dots);; · raster polyline segment - a part of a raster line delimited by endpoints or intersections with other objects; · raster entity - a raster analog of a vector entity: raster line, arc, and circle. * For more detailed information on the selection procedure see "Selecting Several Images" on page 20. Most intelligent selection methods can manage all types of raster objects. When using those methods you need to specify the type of raster objects to be processed. This is determined by the current selection type: Selection type Raster object type rSelect option 130