please solve it asap

Surveyor's measuring rods in 3 or 5m length are marked in red with 200mm 10 graduations. There is a choice of two push buttons to start the forward movement of measuring rods via cylinder, which has the exhaust air throttled. The idle stroke, also started by a push button, can only take place when the double acting cylinder has reached its forward end position. Draw a Manual pneumatic circuit for the above problem statement as shown in the Figure No.3. (Explanation not required) Page 2 of 3 \begin{tabular}{|c|l|c|} \hline 5 & \begin{tabular}{l} With a proper example, explain Absolute (point to point) and Incremental (Continuous) \\ coordinate system. Also elaborate the working of LVDT and Optical type encoder. \end{tabular} & 10 \\ \hline \end{tabular}