User guide

Volume Tools
16-3
Fig. 16-2. Volume contour.
The contour should completely surround the data you want to quantify.
To edit the contour, position your cursor on the border. Your cursor will
change to a pencil tool. Drag across the line; a new white line will appear.
When you recross the old line, a new contour will be created.
Volume Freehand Tool
This tool allows you to draw your own volume boundary. First magnify the
object you want to quantify using the Zoom tools (you must be able to see the
individual pixels in the image). Then click on the Volume Freehand button,
and use your cursor to draw a line around the object. When your line crosses
itself, a freehand volume is created.
Fig. 16-3. Volume freehand.
If you make a mistake while drawing, simply backtrack with the mouse. The
line you draw should completely surround the data you want to quantify.
To edit the volume, position your cursor on the border and drag across the
line; a new white line will appear. When you recross the old line, a new
freehand volume will be created.