Methods and sources
Mệnh Đạo combines calendar and chart calculations with interpretation rules authored in Vietnamese and English. Each reading keeps its result and edition so you can return to the same outlook.
Calculation tools
iztro 2.6.5
MIT
Full copyright and license noticelunar-javascript 1.7.8
MIT
Full copyright and license noticeastronomy-engine 2.1.19
MIT
Full copyright and license noticeiching-structural-cc0 1.0.0
CC0-1.0
Full copyright and license noticeOriginal interpretation collection
Tử Vi uses principal-star and transformation rules. I Ching uses 64 hexagram themes and moving-line positions. Date selection compares the activity with your filters; feng shui uses Eight Mansions and the bearings you provide. Palm readings use the features you confirm. Tarot uses a 78-card collection with Mệnh Đạo’s suit, rank and orientation themes.