User Guide

Object Shortcut Menu
Right-click image ➤ REM ➤ Create ➤ Circular Region
Command Line
iscircreg
Defining a Region From an Existing Vector Object
You can define a region object using the geometry of an existing vector object,
such as a polyline, rectangle, circle, or ellipse.
For example, you may have a vector circle corresponding to a 5-mile radius
where an all-vegetation area will be affected by a contamination spill. You
can select the vector circle to define a circular region object corresponding to
all the raster data within the circle.
See also:
■ Resizing a REM Object (page 189)
■ Editing REM Objects (page 187)
■ Merging REM Objects into an Image (page 198)
■ Converting REM Objects to a New Raster Image (page 199)
To define a region from an existing vector object
1 Click Image menu ➤ Raster Entity Manipulation ➤ Create Region ➤
From Existing Vector.
2 Select the closed vector object.
Quick Reference
Menu
Image ➤ Raster Entity Manipulation ➤ Create Region ➤ From Existing
Vector
REM Toolbar
174 | Chapter 7 Raster Entity Manipulation