我正在学习用于创建GUI的javafx。我想实现X-Y NumberAxis的简单折线图。根据折线图的属性,连接数据点的线永远不会相交。
例如 - 假设数据点
public string getRealPathFromUri (final Uri content)
{
// get intent from activity and added it here
Uri uri;
String stringUri;
stringUri = uri.toString();
}
折线图中这些点的输出是 - ] 1)
有没有办法改变折线图的这种行为?或连接散点图的点?
请注意,我将动态添加点,下限,两个轴的上限将不断变化。
答案 0 :(得分:3)
关闭图表的sorting policy。
lineChart.setAxisSortingPolicy(LineChart.SortingPolicy.NONE);
当我使用它时,我会得到这个漂亮的孩子的涂鸦。
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.chart.LineChart;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.XYChart;
import javafx.stage.Stage;
public class LineChartSample extends Application {
@Override public void start(Stage stage) {
final NumberAxis xAxis = new NumberAxis();
final NumberAxis yAxis = new NumberAxis();
final LineChart<Number,Number> lineChart =
new LineChart<>(xAxis, yAxis);
XYChart.Series<Number, Number> series = new XYChart.Series<>();
series.getData().addAll(
new XYChart.Data<>(4, 24),
new XYChart.Data<>(1, 23),
new XYChart.Data<>(6, 36),
new XYChart.Data<>(8, 45),
new XYChart.Data<>(2, 14),
new XYChart.Data<>(9, 43),
new XYChart.Data<>(7, 22),
new XYChart.Data<>(12, 25),
new XYChart.Data<>(10, 17),
new XYChart.Data<>(5, 34),
new XYChart.Data<>(3, 15),
new XYChart.Data<>(11, 29)
);
lineChart.setAxisSortingPolicy(LineChart.SortingPolicy.NONE);
Scene scene = new Scene(lineChart,800,600);
lineChart.getData().add(series);
lineChart.setLegendVisible(false);
stage.setScene(scene);
stage.show();
}
public static void main(String[] args) {
launch(args);
}
}