How to measure distance travelled?

I like to sail and I would like to start tracking the distance I have sailed. Any idea how this could be done?

I can handle the posting to an external db the xyz and do all the calculations. I am just wandering how one would actually measure it. I think it would be as easy as posting xyz cords every so often and then doing some simple math.

maybe not.

No need for a DB, you can do something even easier.

float total_distance;
vector old_pos;
vector new_pos;

default
{
on_rez(integer start_param)
{
new_pos = llGetPos();
old_pos = new_pos;
llSetTimerEvent(2);
}

state_entry()
{
new_pos = llGetPos();
old_pos = new_pos;
llSetTimerEvent(2);
}

timer()
{
vector new_pos = llGetPos();
total_distance += llVecDist(old_pos, new_pos);
old_pos = new_pos;
llSetText("Total Distance Traveled: " + (string)llFloor(total_distance), <1,1,1>, 0.; // Set total distance
}

changed(integer change)
{
if(change & CHANGED_REGION)
{
new_pos = llGetPos();
old_pos = new_pos;
}
}
}

Feel free to use this code as an example, and please note I have not tested (Will in a few minutes!) and was done on the fly. (EDITED TO FIX CODE) (Second Edit, added region change & replaced method of position retrieval due to thinking it would not work on physical objects, but that is llSetPos got it mixed up.)

wow...great! thanks...I will give it a try tonight and see if I can debug if needed.

I still plan on logging in db. I would like to keep track of all the stats over time.

seems to work as is. well done ! thx

/me is curious why you're using llGetObjectDetails instead of llGetPos or llGetRootPosition..

edit: and I think you need a changed event for crossing sim lines..

"And I have miles to go before I sleep
And I have miles to go before I sleep."