Basic Classes
The basic classes are:
 | XYObject is the pure abstract class on the top of XY hierarchy and contains common attributes and methods to all classes; |
| XYGraph representes the place where titles, axes, curves and legend can be draw; |
| XYText is responsible for the texts (used in labels, titles, legends etc); |
| XYAxis represents an axis; |
| XYMask is the abstract class that is responsible for the visual representation of a data set (lines, marks, bars etc); |
| XYSeries is the abstract class for representing the data sets (arrays, lists, iterators etc); |
| XYLegend is the legend makes; |
| XYMarker defines a marker of region in the graph; |
| XYPosition that the absolute position of an object or the relative one to another object indicates. |