To Measure Volume
1. Click Analysis > Measure > Volume, or right-click the graphics window and choose Volume from the shortcut menu. The Measure dialog box opens.
2. Select a reference entity to measure. The volume value is shown in the measurement panel and in the Measure dialog box.
3. To calculate the volume on one side of a plane, select the Plane collector in the Measure dialog box, and then select a plane or plane pattern. Click to calculate volume on the other side of the plane.
4. To change the accuracy of the measurement, type a value in the Accuracy box.