digraph
{
 // LATEX_PDF_SIZE
  bgcolor="transparent";
  edge [fontname="FreeSans",fontsize="12",labelfontname="FreeSans",labelfontsize="12"];
  node [fontname="FreeSans",fontsize="12",shape=record];
  rankdir="LR";

  {
    rank=same;
    JKQTPPlotElement [URL="\link JKQTPPlotElement"];
    noteJKQTPPlotElement [shape="note", color="lightyellow",style=filled,fontsize=8,label="base class for all\nelements drawn\nonto a plot"];
    JKQTPPlotElement -> noteJKQTPPlotElement [style=dashed,arrowhead=none];
  }

  {
    rank=same;
    JKQTPGraph [URL="\link JKQTPPlotElement"];
    noteJKQTPGraph [shape="note", color="lightyellow",style=filled,fontsize=8,label="base class for all\nactual graphs"];
    JKQTPGraph -> noteJKQTPGraph [style=dashed,arrowhead=none];
    JKQTPPlotObject [URL="\link JKQTPPlotObject"];
    noteJKQTPPlotObject [shape="note", color="lightyellow",style=filled,fontsize=8,label="base class for all\nnon-graph elements,\ne.g. geometric elements"];
    JKQTPPlotObject -> noteJKQTPPlotObject [style=dashed,arrowhead=none];
  }


  {
    rank=same;

    JKQTPXYGraph [URL="\link JKQTPXYGraph"]
    noteJKQTPXYGraph [shape="note", color="lightyellow",style=filled,fontsize=8,label="base class for all\ngraphs based on\n (x,y) data pairs"];
    JKQTPXYGraph -> noteJKQTPXYGraph [style=dashed,arrowhead=none];
    JKQTPSingleColumnGraph [URL="\link JKQTPSingleColumnGraph"]
    noteJKQTPSingleColumnGraph [shape="note", color="lightyellow",style=filled,fontsize=8,label="base class for all\ngraphs based on only\n a single column of data"];
    JKQTPSingleColumnGraph -> noteJKQTPSingleColumnGraph [style=dashed,arrowhead=none];
    JKQTPImageBase [URL="\link JKQTPImageBase"]
    noteJKQTPImageBase [shape="note", color="lightyellow",style=filled,fontsize=8,label="base class for all\ngraphsthat represent \n2D images/matrices"];
    JKQTPImageBase -> noteJKQTPImageBase [style=dashed,arrowhead=none];
    JKQTPGeoBaseLine [URL="\link JKQTPGeoBaseLine"];
    noteJKQTPGeoBaseLine [shape="note", color="lightyellow",style=filled,fontsize=8,label="base class for all\ngeometric elements\nthat need line properties\n (color, width, ...)"];
    JKQTPGeoBaseLine -> noteJKQTPGeoBaseLine [style=dashed,arrowhead=none];
  }

  {
    rank=same;

    JKQTPMathImageBase [URL="\link JKQTPMathImageBase"]
    noteJKQTPMathImageBase [shape="note", color="lightyellow",style=filled,fontsize=8,label="base class for all\ngeometric elements\nthat need area fill properties\n (fillcolor, pattern, ...)"];
    JKQTPMathImageBase -> noteJKQTPMathImageBase [style=dashed,arrowhead=none];

    JKQTPGeoBaseFilled [URL="\link JKQTPGeoBaseFilled"];
    noteJKQTPGeoBaseFilled [shape="note", color="lightyellow",style=filled,fontsize=8,label="base class for all\ngeometric elements\nthat need area fill properties\n (fillcolor, pattern, ...)"];
    JKQTPGeoBaseFilled -> noteJKQTPGeoBaseFilled [style=dashed,arrowhead=none];
}  
  JKQTPGraph -> JKQTPXYGraph
  JKQTPGraph -> JKQTPSingleColumnGraph
  JKQTPGraph -> JKQTPImageBase -> JKQTPMathImageBase


  JKQTPPlotElement -> JKQTPGraph
  JKQTPPlotElement -> JKQTPPlotObject
  JKQTPPlotObject -> JKQTPGeoBaseLine -> JKQTPGeoBaseFilled

}