topic Skylight snapping on roof issue in Libraries & objects

Skylight snapping on roof issue

Niranjan Das Sharma — Mon, 28 Apr 2025 12:59:22 GMT

I am trying to position dormer skylights in place. Problem is with selection and snapping points. The snapping points are not along the ridge or valley lines or intersections so it becomes extremely difficult to accurately position it. Please check the zoomed screenshot. Is there any solution for this?

Thank you in advance.

Re: Skylight snapping on roof issue

Matteods — Sat, 26 Apr 2025 08:08:14 GMT

What kind of object is? It's not a native Archicad object?

Greetings,

Matteo

Re: Skylight snapping on roof issue

Niranjan Das Sharma — Fri, 02 May 2025 06:14:04 GMT

Its a skylight object. Native Archicad.

Thanks ,

Niranjan

Re: Skylight snapping on roof issue

Barry Kelly — Fri, 02 May 2025 06:23:47 GMT

When used with the skylight tool (which you are doing), it will automatically lock onto the roof surface.

You can only place it by one of those anchor points, but you can move it around where ever you like after it has been placed.

But only accurately by those anchor points.

Otherwise just zoom in and get as accurate as you can.

Barry.

Re: Skylight snapping on roof issue

Niranjan Das Sharma — Fri, 02 May 2025 10:27:42 GMT

It was locking on to roof surface. My only problem was the accuracy of placement. Understood the limitation.

Thank you.

Re: Skylight snapping on roof issue

Jaime-airc_digital — Fri, 02 May 2025 23:44:54 GMT

Hi @Niranjan Das Sharma, your request makes a lot of sense, those points are definitely needed to place the skylight accurately.
I managed to code the additional roof reference hotspots. Here are the required changes:

Copy and paste the following definition at the start of the 2D Script, replacing the existing one:

ySpitze = (dUeberstandGaubeVorn + zFrontFirst + 0.5 * sizeRoofFrontOverhang + 0.04142)/ tanDach

Paste the following new hotspots code at the end of the 2D script:

! 2D hotspots at key roof geometry points hotspot2 xBreite + dUeberstandDachGaube, - sizeRoofFrontOverhang ! Front Top eave hotspot2 xBreiteHalb, - sizeRoofFrontOverhang ! Front Ridge hotspot2 -dUeberstandDachGaube, - sizeRoofFrontOverhang ! Front bottom eave hotspot2 xBreite + dUeberstandDachGaube, yEcke - 0.05858 / tanDach ! Back Top eave hotspot2 -dUeberstandDachGaube, yEcke - 0.05858 / tanDach ! Back bottom eave

Paste the following code at after the detailed model hotspots section of the 3D Script:

! 3D hotspots at key roof geometry points hotspot xBreite + dUeberstandDachGaube, dUeberstandGaubeVorn + zHoeheTraufe / tanDach - 0.05850 / tanDach, zFirstVorne - yAbschnitt + 0.0707, unID : unID = unID + 1 ! Back Top eave hotspot -dUeberstandDachGaube, dUeberstandGaubeVorn + zHoeheTraufe / tanDach - 0.05850 / tanDach, zFirstVorne - yAbschnitt + 0.0707, unID : unID = unID + 1 ! Back bottom eave hotspot xBreiteHalb, (dUeberstandGaubeVorn + zFrontFirst + 0.5 * sizeRoofFrontOverhang + 0.0411 )/ tanDach, zFrontFirst + dzDachGaube, unID : unID = unID + 1 ! Back Ridge hotspot xBreite + dUeberstandDachGaube, dUeberstandGaubeVorn + zHoeheTraufe / tanDach - 0.05850 / tanDach, zFirstVorne - yAbschnitt + 0.0707, unID : unID = unID + 1 ! Back Top eave hotspot -dUeberstandDachGaube, dUeberstandGaubeVorn + zHoeheTraufe - 0.05850 / tanDach, zFirstVorne - yAbschnitt + 0.0707, unID : unID = unID + 1 ! Back bottom eave

See video tip below on how to do it yourself:

Or subscribe to our airc.digital community and download the object for free:
https://airc.digital/community/

Re: Skylight snapping on roof issue

Niranjan Das Sharma — Tue, 06 May 2025 09:12:04 GMT

Thank you verymuch! that really helped 😊..