What is the relationship between architecture and geomantic omen?

China geomantic omen includes Yin house geomantic omen and Yang house geomantic omen, among which Yang house geomantic omen has been given many new names by modern people: architectural geomantic omen, geomantic architecture, residential feng shui, residential feng shui and so on. In fact, it is just a synonym for Yang Zhai Feng Shui. Residential feng shui, namely Yang Zhai Feng Shui, namely residential feng shui, includes external Feng Shui environment and internal Feng Shui layout. So indoor geomantic omen is only a part of residential feng shui.