Tui thử chat với anh bạn Ivan Garcia hỏi tham gia vẽ như thế nào, thì được trả lời như vầy:
Hi,
I have uploaded the data that was gathered using many GPS devices by the people that joined this project.
http://www.thevenusproject.com/
We have used this script to upload data.
http://wiki.openstreetmap.org/wiki/Bulk_upload.pl
is much faster than JOSM, and can resume if upload breaks.
We use JOSM or the flash potlach editor to add the name of the streets in vietnamese, u can help us with that.
You can write more names missing by comparing using this site.
http://sautter.com/map/ (choose the realtime layer).
BTW, the rivers and main roads in the country are also uploaded by us but not so accurate, if u want to help u can use JOSM or potlach to move their nodes into a more accurate position.
Best Regards.
Ivan.