void simple_line_plot_ex()
{    
	Worksheet wks = Project.ActiveLayer();  // get the active worksheet
	if( !wks )
	{	
		out_str("Please activate one worksheet with data");
		return;
	}	 
	GraphPage gp;
	gp.Create("Line00");  // create a graph with Line00 template
	GraphLayer gl = gp.Layers(0);  // layer 1 of the graph
	Curve crv(wks, 0, 1);
	int nPlot = gl.AddPlot(crv, IDM_PLOT_LINE); // add a line plot to the graph, return plot index
	if( nPlot >= 0 )
		gl.Rescale();  // rescale the graph
}