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Gets or sets whether the chart axes are displayed at right angles, regardless of chart rotation or elevation.
This property applies only to 3-D line, column, and bar charts.
bool RightAngleAxes { get; set; }
Property RightAngleAxes As Boolean
IChart chart = worksheet.Shapes.AddChart(ChartType.ColumnClustered3D, 20, 20, 300, 200).Chart;
chart.RightAngleAxes = true;
bool rightAngleAxes = chart.RightAngleAxes;