توی یه سایت دیگه سوالمو مطرح کردم و این جواب ها رو دریافت کردم
You cannot export Google maps data. In fact you aren't even allowed to cache them:
When using Google Maps or Earth APIs, you may not cache any imagery or other Content. Google continually updates the imagery within Maps and Earth; thus, caching may result in stale or even impermissible imagery. For full details, please read section 10.3.1 of the
Maps/Earth API Terms of Service.
All google maps usage must be through the appropriate google maps API which specifically forbids turn-by-turn navigation if that is where you were going with this.
As an alternative you can try openstreetmap.org and check out their API usage policy
Basically you can download the entire planet as vectorized data from various planet.osm mirrors