NinjaScript > Language Reference > Drawing Tool

Definition

Returns the closest chart anchor within a specified maximum distance from the mouse cursor.

Method Return Value

This method returns an existing ChartAnchor

Syntax

GetClosestAnchor(ChartControl chartControl, ChartPanel chartPanel, ChartScale chartScale, double maxDist, Point point)

Method Parameters

chartControl	A ChartControl representing the x-axis
chartPanel	A ChartPanel representing the the panel for the chart
chartScale	A ChartScale representing the y-axis
maxDist	A double value representing the cursor's sensitivity used to detect the nearest anchor
point	A Point in device pixels representing the current mouse cursor position

Examples


public override Cursor GetCursor(ChartControl chartControl, ChartPanel chartPanel, ChartScale chartScale, Point point) { // get the closest anchor to where the user has clicked ChartAnchor closest = GetClosestAnchor(chartControl, chartPanel, chartScale, 10, point); if (closest != null) { // set cursor to indicate that it can be moved return Cursors.SizeNWSE; } // otherwise set cursor back to arrow else return Cursors.Arrow; }

public override Cursor GetCursor(ChartControl chartControl, ChartPanel chartPanel, ChartScale chartScale, Point point)
{
// get the closest anchor to where the user has clicked
ChartAnchor closest = GetClosestAnchor(chartControl, chartPanel, chartScale, 10, point);

if (closest != null)
{
// set cursor to indicate that it can be moved
return Cursors.SizeNWSE;
}
// otherwise set cursor back to arrow
else return Cursors.Arrow;
}