drawDataMarker method
void
drawDataMarker(])
Draws marker with different shape and color of the appropriate data point in the series.
Implementation
@override
void drawDataMarker(int index, Canvas canvas, Paint fillPaint,
Paint strokePaint, double pointX, double pointY,
[CartesianSeriesRenderer? seriesRenderer]) {
canvas.drawPath(seriesRenderer!._markerShapes[index]!, fillPaint);
canvas.drawPath(seriesRenderer._markerShapes[index]!, strokePaint);
}