XYDiagram2D.DiagramToPoint(DateTime, Double) Method

Converts the diagram coordinates of a point into screen coordinates.

Namespace: DevExpress.XtraCharts

Assembly: DevExpress.XtraCharts.v18.2.dll

Declaration

C#

public ControlCoordinates DiagramToPoint(
    DateTime argument,
    double value
)

VB.NET

Public Function DiagramToPoint(
    argument As Date,
    value As Double
) As ControlCoordinates

Parameters

Name	Type	Description
argument	DateTime	A DateTime value, specifying the point’s argument.
value	Double	A Double, specifying the point’s value.

Returns

Type	Description
ControlCoordinates	A ControlCoordinates object, containing information about the point’s screen coordinates, and its associated pane.

Remarks

Use the DiagramToPoint method, to convert diagram coordinates of a point (measured in axis units) to the screen coordinates. For example, calling this method in the ChartControl.CustomPaint event handler allows you to obtain screen coordinates of series points, and draw custom graphics onto your chart across them.

Note

For the opposite conversion (of screen coordinates to diagram coordinates), use the XYDiagram2D.PointToDiagram method.

With the Radar and Polar diagram types, use the similar RadarDiagram.PointToDiagram and RadarDiagram.DiagramToPoint methods.

For more information, see Handling Client-side Scripts.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the DiagramToPoint(DateTime, Double) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-implement-range-selection-via-a-separate-chartcontrol-e3113/CS/InteractiveRangeSelect/Form1.cs#L167

    return;
ControlCoordinates leftBottom = Diagram.DiagramToPoint(minRange,
    Convert.ToDouble(Diagram.AxisY.VisualRange.MinValue));

VB.NET

how-to-implement-range-selection-via-a-separate-chartcontrol-e3113/VB/InteractiveRangeSelect/Form1.vb#L176

End If
Dim leftBottom As ControlCoordinates = Diagram.DiagramToPoint(minRange, Convert.ToDouble(Diagram.AxisY.VisualRange.MinValue))
Dim leftTop As ControlCoordinates = Diagram.DiagramToPoint(minRange, Convert.ToDouble(Diagram.AxisY.VisualRange.MaxValue))