This tool allows users to create measurements with a sub-structure based on the properties of the measured object.
Note: The collection Measurement command is one of the enhanced functionality tools and can be found only in BIMMeasure.
In the following screenshot, it can be seen that Measurement number 1 has a total length value of 26.963m. This value has been taken from a certain wall type in this 3D drawing In a 2D drawing this could just as easily have been a line on a certain layer.
The measurement can be expanded by clicking the plus sign to reveal sub-measurements, based on the specified properties. In this case the base constraint of the selected walls in the 3D drawing has been used as a filter. Both collections are shown as sub-measurements.
That is, all instances of the selected wall that have a base constraint of FFL G are collated separately to those with a base constraint of FFL 1. In a 2D drawing this could just as easily have been object colour or linetype.
For example: To create the above measurement, the length of all Basic walls with the Type: 'Cav - 100 75i 100 p - Tan Rendered', sorted by Base Constraint and Top constraint. Click the Collection button on the Dynamic panel of the Measurements ribbon.
{Refer to the above screenshot during the following option selection process}
Select the Object type (only those objects that exist in the drawing are displayed in the pulldown list) or use the 'Select' button to pick an object on screen
(In this case 'Basic Wall')
Specify the property and value to apply to the selected object
(In this case 'Type Name . . = . . Cav - 100 75i 100 p - Tan Rendered)
Click Add to lIst.
Use the And/Or option as qualifiers if required then specify further Properties and then click Add to List.
Specify Measurement & Type
Count Only: allows selection of the 'Count' Type
Property Total: select from the drop-down list and an appropriate type
Formula: specify a formula to apply (See following screenshot), select appropriate type from the Type field and then click OK.
In the above screenshot, Property Total = Length, Type = Length)
Specify the Units to be used
(In this case 'Metres')
Click OK
The following Window will open: (All object properties will be displayed as available options)
Specify the sort properties in the Sort Properties dialog box.
In this screenshot, Base Constraint and Top Constraint is selected.
Click OK.
Pick a point on the screen to display the Measurement Marker.
Note: This measurement method is quite complex and can sometimes take a little while so do not expect an immediate response on the Measurements window.
The measurement is displayed with a total value, and + option to expand the tree . . .
. . . to reveal the Sort Properties specified and a sub-total against each . . .
. . . which can be expanded to reveal the instances that make up each sub-total and their individual measurements.
Select each sub-total to see it on screen (Highlight mode permitting)
In this case all the walls with a Base constraint of FFL G and a Top constraint of FFL Attic
or,
In this case all the walls with a Base constraint of FFL 1 and a Top constraint of FFL Attic
