By counting objects
Choose ‘counting objects' if you wish to measure the volume based on objects. For example, you can measure the total volume of 5 decorative concrete globes if you know the volume of one of them.
Mark
With this option you manually mark the desired objects on the drawing. You can measure volume from items; if the volume of the items is common, you will be prompted to fill in the value in the corresponding field, as shown in the following window:
Click OK and select the objects by consecutively clicking on the drawing, where the items you wish to measure are placed.
If the volume of the items is not common, leave the corresponding field blank and click OK.
Every time you click on an item whose volume you wish to measure, the following window appears:
Specify the volume of the particular object you are measuring.
This value will be the default value
for each subsequent object so the user does not have to re-enter it -in case the
surface area is equal to that of the previous object- while users have the
ability to change it.
Objects search
(See Measuring in image files/Types and method of measurement/Object count/Object search)