Drawing content of basic plan. (1) Positioning axis and number. (2) The shape, total length and total width of the foundation plane. (3) Layout of foundation beams, columns and walls. (4) The cutting position and number of different sections. (5) the necessary text description. (6) Location of pipe trench and equipment hole. Drawing steps of basic plan. Set up the drawing environment and create a new template. Draw positioning axis and column grid. Draw the wall. Draw the foundation cushion. Draw a column section. Draw extension lines, elevation figures, index symbols and related annotation text. Mark the size. Add borders and titles. Print out. A plan is a kind of map. When the survey area is small and the radius is less than 11 km (or even 25 km), the water level can be used instead of the horizon. On this premise, the ground scenery in the survey area can be projected onto the plane along the vertical line, and the similar figure formed by shrinking according to the specified symbols and proportions is called the plan.