National Instruments IMAQTM User Manual page 31

Chapter 3 Making Grayscale and Color Measurements
IMAQ Vision for Visual Basic User Manual
Table 3-1. Tools Palette Functions
Tool Name
None
Selection Tool
Point
Line
Rectangle
Rotated Rectangle
Oval
Annulus
Broken Line
3-2
Function
Disable the tools.
Select an ROI in the image and adjust the position
of its control points and contours.
Action: Click the appropriate ROI or control
points.
Select a pixel in the image.
Action: Click the appropriate position.
Draw a line in the image.
Action: Click the initial position and click again
on the final position.
Draw a rectangle or square in the image.
Action: Click one corner and drag to the opposite
corner.
Draw a rotated rectangle in the image.
Action: Click one corner and drag to the opposite
corner to create the rectangle. Then, click on the
lines inside the rectangle and drag to adjust the
rotation angle.
Draw an oval or circle in the image.
Action: Click the center position and drag to the
appropriate size.
Draw an annulus in the image.
Action: Click the center position and drag to the
appropriate size. Adjust the inner and outer radii,
and adjust the start and end angle.
Draw a broken line in the image.
Action: Click to place a new vertex and
double-click to complete the ROI element.
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