FindClosestPoint Method (DataSeries<TX,TY>)
Finds the closest point to a point with given X and Y value. Search region is a vertical area with center in X and [maxXDistance] X units to left and right
Syntax
public virtual int FindClosestPoint( IComparable xValue, IComparable yValue, double xyScaleRatio, double hitTestRadius )
Parameters
- xValue
- The X-value of point [X data units, not pixels]
- yValue
- The Y-value of point [Y data units, not pixels]
- xyScaleRatio
- xUnitsPerPixel/yUnitsPerPixel
- hitTestRadius
- Specifies search region in chart coordinates(ticks for DateTime or TimeSpan)
Return Value
The index of the found value, -1 if not found (when count is zero)
Requirements
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
See Also