How to find out building orientation?

[k.mh.alam (K M Alam)]

Hello Everyone,
I have details of a building. For example areas of the outside walls (South, Southwest, … 8 directions), building volume, the surface to building ratio, floor height. Is it possible to find out the azimuth of the building?
Thank you

[laurent_delrieu]

Hello
your question is not very clear, what is your definition of the main direction of the building ?
perhaps you could use oriented Bounding Box to have the main axes of your building.

Minimum oriented bounding box. Implementation in Grasshopper + Python script node

Hello for everyone, I am trying to understand the logic of minimum bounding box definition so I can implement it in python script node. The reason is very simple - I am planning to test my gh definitons on Shapediver, which does support python script + Grasshopper. I am trying to develop an automated upper limb 3D scan re-alignment tool and as far as I am aware there is no possibility to (re) execute Galapagos in Shapediver. I have a well-working definition in Grasshopper + Galapagos (attached…

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If you have a definition for this direction, then Azimuth will be simple to calculate knowing with vector is North. Usually North is Y vector. And you must must use XY plane as Plane angle.

Vector A and B are “flipped” because Azimuth is clockwize when looking from above and XY plane Z direction is going counter clockwise.

Azimuth

[k.mh.alam (K M Alam)]

Thanks @laurent_delrieu . I don’t have a main direction. Instead, I have the building cubature of individual directions. More crude level, my question is something like, how to find the direction of the area vector?

[laurent_delrieu]

A sketch or some examples will be welcomed. Perhaps someone will be able to help you more.

[k.mh.alam (K M Alam)]

Something like this, I would like to add the area vectors and use the resulting vector to form a rectangular enclosure. In the sketch, I added the south and southeast area vector and the resulting vector is the red mark with an angle theta (θ) and Do you understand what I mean?