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Custom Points
Essential Chart supports plotting of points on the Chart Area even if they don't belong to a series. These are stored in the ChartControl.CustomPoints collection. They can be set at custom coordinates of the Chart Area or be made to follow a certain point or percentage coordinates. A custom point displays a text, background, border, symbol and marker which is a line that connects the CustomPoint with the point on the chart area when it is offset from it.
Custom Points in a Column Chart
The Custom Point symbols in the above image represents the following Custom Types respectively.
1.Yellow “Circle” – PointFollow,
2.Orange “Star” - Pixel,
3.Pink “Pentagon” - Percent,
4.OrangeRed “Diamond” - ChartCoordinates.
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