1. Place the circular center point in the center of the graph to indicate the starting point of the wind direction.

2. According to the actual wind speed and direction, select the corresponding direction arrow, with the top of the direction arrow indicating the wind direction and the length of the arrow indicating the wind speed.

3. Connect the top of the direction arrow to the corresponding direction on the wind map, such as east, south, west and north.

4. Mark the wind speed on the wind direction chart, which can be expressed by numbers or colors.

5. If necessary, you can use a ruler to measure the angle and length of the directional arrow on the wind map, so as to draw the wind map more accurately.