/// <summary>
/// Creates a chart.
/// </summary>
/// <param name="anchor">the client anchor describes how this chart is attached to</param>
/// <returns>the newly created chart</returns>
public IChart CreateChart(IClientAnchor anchor)
{
int chartNumber = GetPackagePart().Package.
GetPartsByContentType(XSSFRelation.CHART.ContentType).Count + 1;
XSSFChart chart = (XSSFChart)CreateRelationship(
XSSFRelation.CHART, XSSFFactory.GetInstance(), chartNumber);
String chartRelId = chart.GetPackageRelationship().Id;
XSSFGraphicFrame frame = CreateGraphicFrame((XSSFClientAnchor)anchor);
frame.SetChart(chart, chartRelId);
return(chart);
}
