Explain: How is a floral diagram drawn?

(N/A) $\rightarrow$ $A$ floral diagram provides information about the number of parts of a flower,their arrangement,and the relation they have with one another.
$\rightarrow$ The position of the mother axis with respect to the flower is represented by a dot on the top of the floral diagram.
$\rightarrow$ Calyx,corolla,androecium,and gynoecium are drawn in successive whorls,with the calyx being the outermost and the gynoecium being in the center.
$\rightarrow$ The floral diagram also illustrates cohesion and adhesion within parts of whorls and between whorls.