To enter the offset values from the measured line to the inaccessible point:
Note: You can define the direction of any offset in two ways: either click on the corresponding button of the current selection, or use the minus sign "-" for the current value. For instance, Forward 12.000 and Backward -12.000 directions are the same.
Click to accept entered values, calculate the inaccessible point coordinates and close the dialog. Click
to discard entered values and return to the Line and Offset dialog without calculations.