Alignment along the longitudinal axis of the main building

Hello forum,
I have a question regarding the longitudinal axis of a house. What does the longitudinal axis look like for a square house with a pyramid roof? A pyramid roof doesn’t have a ridge, does it? How are the axes determined? I have attached two sample floor plans. Who is familiar with this?
I have a plot in prospect but need to pay attention to the east-west orientation of the longitudinal axis of the main building. For this plot, however, a garden facing west would be ideal.

Copy the wording or the development plan regarding this here. What you want or what the property allows, e.g. your ideas, does not count – the development plan always counts, if available.

I have a question regarding the longitudinal axis of a house. What does the longitudinal axis look like in a square house with a hipped roof? A hipped roof doesn't have a ridge, does it? How are the axes determined?

A hipped roof can be modified accordingly (by adjusting the roof pitch so that a half-meter-long ridge is created to satisfy the chair farter). Sometimes, a requirement for a house axis also goes hand in hand with the text section of the development plan stating, for example, that the floor plan must have an aspect ratio that is at least unequal in the ratio 5:4.