- 2D Chart for WinForms Overview
- Key Features
- Chart for WinForms Quick Start
- Design-Time Support
- Chart Fundamentals
- Common Usage for Basic 2D Charts
- Specific 2D Charts
- Design-Time Tools for Creating 2D Charts
- Charting Data
- Data Binding
- Charting Labels
- Chart Area and Plot Area Objects
- Customizing Chart Elements
- Loading and Saving Charts, Data, and Images
- End-User Interaction
- Chart for WinForms Samples
- Chart for WinForms Tutorials
- Chart for WinForms Task-Based Help
Converting Data Points into Pixel Coordinates
The two methods that convert either data coordinates or data indices into pixel coordinates are the DataIndexToCoord and DataCoordToCoord methods of the ChartGroup object. The DataIndexToCoord method takes a series and point index and returns the client coordinates of the specified data point. The DataCoordToCoord method takes a set of data coordinates and returns a pixel coordinate. These methods are quite similar to the other conversion methods.
DataIndexToCoord Method
The DataIndexToCoord method takes four parameters, and returns a pixel coordinate as seen in the following example:
To write code in Visual Basic
Dim CoordX, CoordY As Integer
C1Chart1.ChartGroups.Group0.
DataIndexToCoord(ChartSeries, ChartPoint, CoordX, CoordY)
Debug.WriteLine("X Chart Coordinate: " & CoordX.ToString())
Debug.WriteLine("Y Chart Coordinate: " & CoordY.ToString())
To write code in C#
int CoordX=0, CoordY=0;
c1Chart1.ChartGroups.Group0.
DataIndexToCoord(ChartSeries, ChartPoint, ref CoordX, ref CoordY);
Debug.Writeline("X Chart Coordinate: " + CoordX.ToString());
Debug.Writeline("Y Chart Coordinate: " + CoordY.ToString());
DataCoordToCoord Method
The DataCoordToCoord method takes four parameters, and returns a pixel coordinate as seen in the following example:
To write code in Visual Basic
Dim CoordX, CoordY As Integer
C1Chart1.ChartGroups.Group0._
DataCoordToCoord(DataCordX, DataCoordY, CoordX, CoordY)
Debug.WriteLine("X Chart Coordinate: " & CoordX.ToString())
Debug.WriteLine("Y Chart Coordinate: " & CoordY.ToString())
To write code in C#
int CoordX=0, CoordY=0;
c1Chart1.ChartGroups.Group0.
DataCoordToCoord(DataCordX, DataCoordY, ref CoordX, ref CoordY);
ConsoleDebug.Writeline("X Chart Coordinate: " + CoordX.ToString());
ConsoleDebug.Writeline("Y Chart Coordinate: " + CoordY.ToString());
type=note
Note: For a complete sample using the DataCoordToCoord method, see the PropGrid or the explorer samples located here.