ArrowHead adds an arrow to a line.

Circle draws a circle within the given image rectangle X, Y, X+D, Y+D.

CoordinateSystem defines the upper left point and the lower right point of the image in floating-point coordinates.

FloatBars draws a filled rectangle for each 2 float points.

FloatCircles are many circles given in float point coordinates.

FloatEnvelope is a filled area.

FloatPath is a connected line with many points.

FloatText is text with floating point coordinates.

FloatTics are unconnected lines given in floating points coordinates.

Single Line.

Lines are unconnected lines with the same width.

Pixel.

Ray is a line with length L.

Rectangle within these limits.

Text alignment is an integer between 0 and 8: 6---5---4 7tex8tex3 0---1---2.

Drawer is an object with a draw method.