Cannot figure out how to get wall radius for label

[Podolsky]

I need to script a label, that would know radius (also coordinates of radius centre) of the wall. I looked how window knows about it - for that there is special global variable WIDO_ORIG_DIST. But wall's global variables do not have any information about it. Any ideas? Or it's just impossible?

[Podolsky]

I cannot comment this anymore.

[Anonymous · Accepted solution]

Looks like AC25 has the solution.
New label parameter: LABEL_ASSOC_ELEM_GEOMETRY

radius_of_circle = Arc Length/Subtended Angle in Radians
r = s/θ

Does this now makes sense?

[Podolsky]

Now it does. I was writing on ArchiCAD 21, so didn't know about this new variable. It's actually introduced in ArchiCAD 23. Thank you a lot - this very useful information.

[Anonymous]

You are welcome Podolsky.

[Aaron Bourgoin]

Podiolsky. I sense beer is coming your way soon. I've introduced your label to a couple of teams in the office to try. I really appreciate your efforts as well as Braza's! Thank you.

[Podolsky]

Million of thanks. Soon I will include curve part too, as you can see - we figure it out how to make it.
Please let me know, do you need support for sections, or sections are not relevant.

[Aaron Bourgoin]

Hey Podolsky. Sections are less important. Plan cover the mandatory base information we need to submit. But thanks for asking.

[Anonymous]

Hey Aaron,
I am glad my small contribution to Podolsky label could somehow help.
It looks like a proper Fire Rating Label is coming to reality.
Cheers,

[Podolsky]

Yes, I think to keep a label as it is for old ArchiCAD versions, but add ArchiCAD version check, that, if version is 23 and above - to use modified script with a new global. So the object itself then still available starting from AC 21.

[Dominic Wyss]

Here's my quick & dirty solution for wall radius:

dict geo, p

if haskey(LABEL_ASSOC_ELEM_GEOMETRY.referenceLine2D.contour.edges[1].ArcAngle) then
	geo.has = "yes"
	geo.ang = LABEL_ASSOC_ELEM_GEOMETRY.referenceLine2D.contour.edges[1].ArcAngle
	geo.num = vardim1(LABEL_ASSOC_ELEM_GEOMETRY.referenceLine2D.contour.edges)

	p = LABEL_ASSOC_ELEM_GEOMETRY.referenceLine2D.contour
	geo.dir.x = p.edges[2].begPoint.x - p.edges[1].begPoint.x
	geo.dir.y = p.edges[2].begPoint.y - p.edges[1].begPoint.y

	geo.chord = (geo.dir.x^2 + geo.dir.y^2)^0.5
	geo.rad = geo.chord/(2*sin(geo.ang/2))


else
	geo.has = "no"
	geo.ang = 0
	geo.num = 0
	geo.rad = 0

endif


hotspot2 0,0

if geo.num > 2 then
	text2 0,0, "poly"

else
	text2 0,0, "ang= " + str("%", geo.ang) + "\nrad= " + str("%", geo.rad)

endif

works for AC23 and younger