Using the Projected option

Use the Projected option on the Calculator dialog to take measurements from projections on the principal plane.

A line is measured from a projection on the principal plane, shown in the image below.

You can measure three values from the projection:

• The length
• The length along either of the axes of the principal plane.

To measure the length of the projection:

1. Position the cursor over the line until a value displays.
2. Double click the line to enter the value into the expressions box.

To measure the length along the axis:

1. Click the line.
2. Move the cursor in the direction parallel to the axis you want. As you move the cursor, a value displays.
3. Click to enter the value into the expressions box.

To measure angles of lines and positions that are projected onto the principal plane:

• Deselect the Projected option to measure Angle A between Line 1 and Line 2.
• Select the Projected option to measure Angle B between Line 1 and Line 2.

Note: You cannot calculate projections of arcs. If you measure an arc, its value is the same regardless of whether Projected is selected.