jambiplotter.java

来自「QT4 gui programming的随书光盘」· Java 代码 · 共 36 行

import java.lang.Math;
import java.util.ArrayList;
import com.trolltech.qt.core.*;
import com.trolltech.qt.gui.*;
import com.softwareinc.plotter.Plotter;
import com.softwareinc.plotter.PlotSettings;

public class JambiPlotter {
    public static void main(String[] args) {
        QApplication.initialize(args);

        PlotSettings settings = new PlotSettings();
        settings.setMinX(0.0);
        settings.setMaxX(100.0);
        settings.setMinY(0.0);
        settings.setMaxY(100.0);

        int numPoints = 100;
        ArrayList<QPointF> points0 = new ArrayList<QPointF>();
        ArrayList<QPointF> points1 = new ArrayList<QPointF>();
        for (int x = 0; x < numPoints; ++x) {
            points0.add(new QPointF(x, Math.random() * 100));
            points1.add(new QPointF(x, Math.random() * 100));
        }

        Plotter plotter = new Plotter();
        plotter.setWindowTitle(plotter.tr("Jambi Plotter"));
        plotter.setPlotSettings(settings);
        plotter.setCurveData(0, points0);
        plotter.setCurveData(1, points1);
        plotter.show();

        QApplication.exec();
    }
}