Skylight snapping on roof issue

[Niranjan Das Sharma]

 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. 

[Matteods]

Hi

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

Greetings,

Matteo 

[Niranjan Das Sharma]

Its a skylight object. Native Archicad. 

 Thanks ,

Niranjan 

[Barry Kelly]

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.

[Niranjan Das Sharma]

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

Thank you. 

[Jaime-airc_digital · Accepted solution]

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/

[Niranjan Das Sharma]

Thank you verymuch! that really helped 😊..