public class CTChart extends LineChart
{
private final Path horizontalMinorGridLines = new Path();

public CTChart(final NumberAxis xAxis, final NumberAxis yAxis)
{
    super(xAxis, yAxis);
    this.setAnimated(false);
    this.setCreateSymbols(false);
    this.setAlternativeRowFillVisible(false);
    this.setLegendVisible(false);
    this.setHorizontalGridLinesVisible(true);
    this.setVerticalGridLinesVisible(true);

    getPlotChildren().add(horizontalMinorGridLines);
    horizontalMinorGridLines.getStyleClass().setAll("chart-horizontal-minor-grid-lines");

    int lowerBound = (int) yAxis.getLowerBound();
    int upperBound = (int) yAxis.getUpperBound();
    int tickUnit = (int) yAxis.getTickUnit();
    int minorTickCount = yAxis.getMinorTickCount();
    int minorTickUnit = tickUnit / minorTickCount;

    horizontalMinorGridLines.getElements().clear();

    for (int i = lowerBound; i < upperBound; i = i + minorTickUnit) {

        ObservableList<TickMark<Number>> tickMarks = yAxis.getTickMarks();
        for (TickMark<Number> tickMark : tickMarks) {
            tickMark.getPosition();
            // horizontalMinorGridLines.getElements().add(new MoveTo(zero, tickMark.getPosition()));
            // horizontalMinorGridLines.getElements().add(new LineTo(zero + xAxis.getWidth(), tickMark.getPosition()));
        }
    }
}
}