Finisar Surveyor User Manual

Page of 454
6-14
Surveyor 
User’s Guide
Histogram Button Controls
Histogram controls allow you to focus on a smaller area of the capture, change the 
appearance of the graph, and load sections of the capture to the decode area. These 
controls are also available form the 
Histogram…
 menu.
 
 Scroll Back, Scroll Forward
Slow scroll forward and back. Scrolls through the data in the Upper Histogram one 
section at a time. Buttons are grayed when you reach the end of the data shown in 
the Upper Histogram. Use the 
CTRL + –>
 and 
CTRL + <–
 key combinations to 
perform the same scrolling actions as the Scroll Back and Scroll Forward buttons.
 
 Scroll to Beginning, Scroll to End
Fast scroll forward and back. Scrolls to the beginning/end of the data in the Upper 
Histogram. Buttons are grayed when you reach the end of the data shown in the 
Upper Histogram.
 Zoom In
Zooms in to show finer granularity of the capture. The amount of data viewed is 
reduced between 20% and 1%, depending on the setting for the Zoom Factor. 
Zooming ceases when the Upper Histogram contains 2 capture sections (20MB of 
data).
   Zoom Out
Zooms out to show a larger scope of the capture. The amount of data viewed is 
increased between 20% and 1%, depending on the setting for the Zoom Factor. 
Zooming ceases when the Upper Histogram contains all capture sections within the 
window set by the extent marks within the Lower Histogram that define the contents 
of the Upper Histogram.
   Download Histogram Data
Blue
Bright Blue
Any incomplete sections. These are sections 
for which a download was started and the user 
aborted the operation in the middle of the 
transfer.
Gray
Black
Any sections not currently downloaded.
Table 6-4. Histogram Default Colors (continued)