How to make a measurement

Open an image in the measurement window by double-click on an image in the Picture scroll list or select an image in the Picture scroll list then select the Open Selected Image...menu item from the Tools menu in the main menu bar.

In the measurement window, select from the Tools popup menu Line - Measurement, Continuous Line, 3-Point Angle, 4-Point Angle, Radius Circle, Diameter Circle, 3-Point Circle, Polygon, or Lasso. Select the desired measurement line width from the pixels popup menu - 1, 2, 3, 4, or 5 pixels wide. The default is 3 Pixels.

Before making a measurement, enter the Magnification Level the image was captured at. The magnification level can be read from the dial on the microscope.

Select the type of units for this measurement.

Line - Measurement: click and drag the mouse across the desired area to be measured. Once you made the desired measurement, click on the measurement result text to move the text to a new location.

Continuous Line: click and drag the mouse across the desired area to be measured. Once you made the desired measurement, click on the measurement result text to move the text to a new location. Click and drag again to draw a connected line from the previous line. To end the measurement, press the control key and click the mouse.

3-Point Angle: click and drag the mouse to draw the first line of the angle, then click and drag again to draw the second line. The degree of the angle will be displayed while drawing the second line. After the second line is drawn, click on the measurement angle result text to move the text to a new location.

4-Point Angle: click and drag the mouse to draw the first line of the angle, then click and drag again to draw the second line. Where the first and second lines intersect or are projected to intersect by the dashed lines, this will represent the measured angle. After the second line is drawn, click on the measurement angle result text to move the text to a new location.

Radius Circle: click and drag the mouse to draw a circle showing the radius, circumference, and area of the drawn circle. Click on the measurement result text to move the text to a new location.

Diameter Circle: click and drag the mouse to draw a circle showing the diameter, circumference, and area of the drawn circle. Click on the measurement result text to move the text to a new location.

3-Point Circle: click to create the first circle point, then click again to create the second circle point, then click once again and drag the mouse for the third point. This will draw a circle showing the radius, circumference, and area of the drawn circle. Click on the measurement result text to move the text to a new location.

Polygon: click and drag the mouse along the desired area to begin the measurement, click and drag again to add another side to the polygon. To close the polygon, press the control key and click the mouse. Click on the measurement result text to move the text to a new location.

Lasso: click and drag the mouse along the the desired area, release the mouse button and the lasso path with automatically close the path by drawing a line to the beginning of the lasso path. Click on the measurement result text to move the text to a new location.

The previous measurement or all of the measurements can be removed or deleted by selecting the appropriate action from the Clear popup menu.

The Text popup menu allows you to enter a time stamp, text label, and/or text comment.

Your changes to the image can be saved by clicking the Save As... button or emailed via Apple's Mail application by clicking the Share... button.

The colors for the measurement tools, time stamp, and text labels and comments can be change in the Set Colors window. The window can be open by selecting the Set Colors... menu item from the Tools menu in the main menu bar.