Hey

I am having a little trouble with this one. I have stored specific data in a .res file. In the format:

Field Point no. of ray time of arrival

For a specific field point I have on average 3 rays with three corresponding time of arrival so a list is looking like this.

Field Point no. of ray time of arrival

(x,y,z) 0 89

(x,y,z) 1 66

(x,y,z) 2 54

I now want the user to be able to input the time of arrival and give me back the field point which corresponds to the 3 specific time of arrivals.

The problem is for another field point you may have the first two time of arrivals same but not the third one.

Any help wud be great,

Cheers

Ailis