Use findall and get, such as:
LH = findall (GCA, 'type', 'Line');% extraction curve from the current FIG (GCA) handle
XC = GET (LH, 'XDATA');% taken x-axis data Note that the data structures stored x and y are the cell
yc = get (lh, 'ydata ');% y-axis data is extracted
and then removed from the coordinates xc and yc of the two cell.
If you just want this picture, then save it as a fig file on the line
