User guide

Quantity One User Guide
14-26
The functions needed to contour and draw bands are found on the Contour
and Draw Band submenus of the Band menu, as well as on the Contour Tools
toolbar.
Before using any of these functions, we suggest that you magnify the image
so that the individual pixels in the band are clearly visible. This allows you to
position the cursor more accurately.
14.8.a Contouring Bands
Fig. 14-16. Contour tools.
Creating Contours
Select Create Contour from the Band > Contour submenu or Contour Tools
toolbar and click on a pixel at the edge of the band. This will display a
contour that encloses pixels whose intensity is equal to or greater than that of
the pixel at the cursor.
Fig. 14-17. Creating a Contour
If the contour does not encircle the band, reposition the cursor and click
again. A new contour will be drawn in place of the old.
Contour encloses pixels
with intensities greater
than or equal to intensity
of pixel at cursor