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Discussion of non-graphical data: Properties, Property Expressions, Classifications, Interactive Schedules

Moderators: Karl Ottenstein, LaszloNagy, ejrolon, Barry Kelly, gkmethy

#286812
Expressions within properties in AC22 are clearly a powerful feature, and as I watched the video from the Key Client Conference in Budapest, I was very impressed with the possibilities. However, I am finding very little information about creative ways that they MIGHT be used. Has anyone compiled a list of useful things you could do with them, or willing to share some useful things that they are currently using them for? It also seems like GS could compile some sample expressions for our use in various situations, as some of the more advanced functions are not intuitively obvious.
#286813
....as some of the more advanced functions are not intuitively obvious.
That's because there aren't many advanced functions. Built in limitations, chiefly Archicad's decision to re-invent another language & the limited scope of this feature, confine usage to mostly single objects - wholly unrealistic.

However, for examples, you might look at the supplied expressions in Archicad's default template.However, some are wrong?
Usages include:
Calculation of materials within single objects like walls,slabs,etc., like #of bricks, ft of sheathing, nails, gals paint & sealing,floor &ceiling tiles, cost based on quantities within object -- whatever.
Elementary key notes scheme for small number major notes.
Use of a 'smart label' which can change content based on the object. This can be extended to object cals.
Code calculations for objects like ventilation requirements, occupancy ,lighting, parking spaces
User fields to display special advanced calculations as required by area analysis.
Calculation of FAR's for a single site zone and reduced area fills.


Take a look at the 7-8 videos by Archicad on Youtube, & the Archicad help topic on this subject. Generally very Good.
Other than that --- Don't expect much!!!!!
#287965
@Richard Morrison
Has anyone compiled a list of useful things you could do with them, or willing to share some useful things that they are currently using them for? It also seems like GS could compile some sample expressions for our use in various situations, as some of the more advanced functions are not intuitively obvious.
I agree! If anyone has worked examples of using expressions on projects please share.