The GRAPH command is used for both graphing in SVG or 4D Chart.

The type of the graphArea parameter determines which graphics engine is used for rendering: If you pass a 4D Chart area reference or a graph area variable, the 4D Chart plug-in will be used. If you pass a picture varaible, the SVG engine will be used.

GRAPH(graphArea;graphNumber;xLabels {;yElements} {;yElements2; ... ;yElementsN})

So, the first step is to be sure to utilize a Picture variable on your form instead of a 4D Chart plugin area. Otherwise, if a 4D Chart area is used, this sample code will not work

The following sample code creates a graph in a picture variable using the SVG engine, then converts the picture variable over to an SVG reference to use SVG commands on it, then converts the svg_ref_id back to a Picture variable for use in 4D again:

C_PICTURE(vGraph) `Pass if you want to use the SVG engine ` Create an array for the x-axis ARRAY STRING(4;X;2) X{1}:="1995" ` X Label #1 X{2}:="1996" ` X Label #2 ` Create an array for the y-axis ARRAY REAL(A;2) A{1}:=30 ` Insert some data A{2}:=40 ` Create an array for the y-axis ARRAY REAL(B;2) B{1}:=50 ` Insert some data B{2}:=80 ` graph type C_LONGINT(vType) vType:=4 ` 4 for line graph ` Draw the graph GRAPH (vGraph;vType;X;A;B) ` Set the legends for the graph GRAPH SETTINGS(vGraph;0;0;0;0;False;False;True;"France";"USA") ` convert the C_PICTURE to an SVG_Ref_ID $svgRef:=SVG_Open_picture (vGraph) ` add text to it $textID:=SVG_New_text ($svgRef;"Hello world";0;0) ` convert from SVG_Ref_ID back to C_Picture SVG EXPORT TO PICTURE($svgRef;vGraph) ` clear SVG memory SVG_CLEAR ($svgRef) ` write out the picture file WRITE PICTURE FILE("";vGraph)

The sample code above should get you started with being able to use the SVG commands on a graph created with the GRAPH command.