As shown in figure a little table in the access database (POINT) and LINE chart (LINE) two table
The end and the starting POINT of the LINE dot dot with the geophysical exploration period in the POINT corresponding to
Please comment how to POINT in the table X, Y coordinates calculation LINE corresponding to the length of LINE segment in the table, the numerical and fill them in the LINE in the table "length" field in the
Thank you for your bosses