KC: Juni 2018
← Bomlink | General overview BomLink

←Bomlink | Expression Rule


(Back to top)

A group is defined so a type entity can be assigned to it. This defines area to create a rule based on the type. Groups are based on a certain type. A group will contain 1 or multiples expressions, all based on the type that has been chosen on group level.

Add Group: Add a group if you need to create a new set of rules, based on a certain type. First click on add group, select a type.
Add Rule: Add an expression or beamtype rule after you created or selected a group.
Delete: Delete a complete group or a rule.
Name: Name of group

Move to: Gives you the list of possible groups where you can move this rule to.
Move up - down: Moving up or down a formula, influences the process all functionality.
Debug: Visualize the rulesetpreview functionality.

There are various types available in BomLink

None - Create rules based on entire model and not to any one particular entity
Analysed Tools -
Beam - Create rules based on beams.
ElementLog - Create rules based on Log elements
ElementRoof - Create rules based on stickframe roof elements
ElementRoofSip - Create rules based on sip roof elements
ElementWallSip - Create rules based on sip wall elements
ElementWallStickFrame - Create rules based on wall stickframe elements
ERoofPlane - Create rules based on roof planes
Hardware - Create rules based on hardware components
OpeningRoof - Create rules based on stickframe floor and roof
Openings - Create rules based on openings unrelated to elements
OpeningStickFrame - Create rules based on opening in stickframe walls, whilst still giving you access to stickframe parameters
Sheet - Create rules based on sheets
Sip - Create rules based on sip/clt panels
TslInstance - Create rules based on TSL parameters
Wall Connections - Create rules based on wall junctions


(Back to top)

Once a group is defined with a type, a rule is created based on that type to get an output.

The rules can be:
  • Beamtype Rule - only possible in the type Beam. The Beam Rule matches standard beam sections and lengths and makes it possible to switch the Length / Width of a beam.
  • Expression Rule - Based on the type parameters selected.     

Filter Expression

(Back to top)

Create the highest level filtering on the data of the type selected.  
This will also enhance the performance output within BomLink. 
An example of this below is using the type ElementWallStickframe with a filter on walltypes to use only walls with 'External' set in the Alias manager. 
The advantage of this filter is that all other data is now discarded so that the expression rule will now only analyse a finite amount of data, thus a faster performance.

Process All

This will process every rule in the type, on the complete data available in hsbcad Modelx.

By default BomLink processes each expression/beam rule by order, starting with the first rule, analysing the data and if true removing the data from the selection analysis and made ready to be outputted.  The next rule is then processed, on the data that is remaining.

Switching on 'Process all' will process the first rule on all the data in hsbcad Modelx, making ready the data to be outputted, then it wil process the next rule, again based on all the data in hsbcad Modelx at the beginning.

Feedback and Knowledge Base