adds arrows with improved arrowhead to a plot
adds a colored and rotated cylinder to a plot
adds a colored and rotated ellipse to a plot
adds a colored and rotated multigonal shape to a plot
adds a colored and rotated rectangle to a plot
adds part of a colored and rotated ellipse to a plot
rotates 2-column matrix around a midpoint
adds a rounded rectangular box to a plot
Functions for plotting graphical shapes, colors
adds a filled rounded rectangular box with a text to a plot