Internal Drawing Data Structure

A drawing consists of a number of elements grouped in a tree-like hierarchy structure. Examples of such elements are subpictures on the first four levels (grouping subordinate elements), geometry elements on the 5th level (containing the graphic information) and attribute elements (containing additional information). There is currently a limitation of the amount of information that can be contained in the drawing. This limitation is measured as the total number of elements in the drawing and is at present 1073741824. If this limit is reached, the system will signal the error 301 and the currently invoked function will be stopped.