Measuring angles
You can use the protractor to measure the angle between two lines, then place the resulting overlay in the sonar view.
Context
The protractor tool measures the angle between a baseline and a second line that intersects the baseline.
Procedure
1 Click the Protractor button.
Image
This button is located on the tool bar.
2 In the sonar view, click the point where you want to start the baseline.
3 Click the point where you want to end the baseline.
The second line will appear.
4 Lock one end of the second line to the baseline.
a Choose where you want the second line to intersect the baseline by moving the mouse along the length of the baseline.
b When ready, click the left mouse button.
5 Choose where you want the second line to end.
a Move the mouse to any point on either side of the baseline to adjust both the length and angle of the second line.
b Click the left mouse button to place the overlay.
Tip
To remove this overlay, click the Wiper button, then click the overlay.