Example usage for java.awt.geom Point2D getX

Introduction

In this page you can find the example usage for java.awt.geom Point2D getX.

Prototype

public abstract double getX();

Source Link

Document

Returns the X coordinate of this Point2D in double precision.

Usage

From source file:org.eclipse.titanium.graph.gui.layouts.BaseHierarchicalLayout.java

/**
 * Implementation of max distance This distance is defined as the maximum of
 * the distances to the predecessor nodes
 * /*from   ww w .  j a  v  a 2  s .  c  om*/
 * @param pos
 *            : The suspected position of the node
 * @param neighbours
 *            : The list of used neighbour nodes (predecessors, or
 *            successors)
 * @return The distance
 */
protected double getMaxDistance(final double pos, final Collection<V> neighbours) {
    double distance = Double.NEGATIVE_INFINITY;

    for (final V v : neighbours) {
        final Point2D pv = places.get(v);
        if (pv == null) {
            continue;
        }

        final double actDist = Math.abs(pv.getX() - pos);
        if (actDist > distance) {
            distance = actDist;
        }
    }
    return distance;
}

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From source file:edu.uci.ics.jung.algorithms.layout.SpringLayout.java

protected void calculateRepulsion() {
    try {/*from  ww w.jav  a  2s .c om*/
        for (V v : getGraph().getVertices()) {
            if (isLocked(v))
                continue;

            SpringVertexData svd = springVertexData.get(v);
            if (svd == null)
                continue;
            double dx = 0, dy = 0;

            for (V v2 : getGraph().getVertices()) {
                if (v == v2)
                    continue;
                Point2D p = transform(v);
                Point2D p2 = transform(v2);
                if (p == null || p2 == null)
                    continue;
                double vx = p.getX() - p2.getX();
                double vy = p.getY() - p2.getY();
                double distanceSq = p.distanceSq(p2);
                if (distanceSq == 0) {
                    dx += Math.random();
                    dy += Math.random();
                } else if (distanceSq < repulsion_range_sq) {
                    double factor = 1;
                    dx += factor * vx / distanceSq;
                    dy += factor * vy / distanceSq;
                }
            }
            double dlen = dx * dx + dy * dy;
            if (dlen > 0) {
                dlen = Math.sqrt(dlen) / 2;
                svd.repulsiondx += dx / dlen;
                svd.repulsiondy += dy / dlen;
            }
        }
    } catch (ConcurrentModificationException cme) {
        calculateRepulsion();
    }
}

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From source file:org.jfree.experimental.chart.plot.dial.StandardDialFrame.java

protected Shape getOuterWindow(Rectangle2D frame) {
    double radiusMargin = 0.02;
    double angleMargin = 1.5;
    Rectangle2D innerFrame = DialPlot.rectangleByRadius(frame, this.innerRadius - radiusMargin,
            this.innerRadius - radiusMargin);
    Rectangle2D outerFrame = DialPlot.rectangleByRadius(frame, this.outerRadius + radiusMargin,
            this.outerRadius + radiusMargin);
    Arc2D inner = new Arc2D.Double(innerFrame, this.startAngle - angleMargin, this.extent + 2 * angleMargin,
            Arc2D.OPEN);// w w w .java  2 s .  c o m
    Arc2D outer = new Arc2D.Double(outerFrame, this.startAngle + angleMargin + this.extent,
            -this.extent - 2 * angleMargin, Arc2D.OPEN);
    GeneralPath p = new GeneralPath();
    Point2D point1 = inner.getStartPoint();
    p.moveTo((float) point1.getX(), (float) point1.getY());
    p.append(inner, true);
    p.append(outer, true);
    p.closePath();
    return p;

}

---

From source file:org.opennms.features.topology.app.internal.jung.TopoFRLayout.java

protected void calcRepulsion(V v1) {
    FRVertexData fvd1 = getFRData(v1);/*  w w w . ja va 2s.  c  o  m*/
    if (fvd1 == null)
        return;
    fvd1.setLocation(0, 0);

    try {
        for (V v2 : getGraph().getVertices()) {
            if (v1 != v2) {
                Point2D p1 = transform(v1);
                Point2D p2 = transform(v2);
                if (p1 == null || p2 == null)
                    continue;
                double xDelta = p1.getX() - p2.getX();
                double yDelta = p1.getY() - p2.getY();

                xDelta = Math.abs(xDelta) > EPSILON ? xDelta
                        : xDelta == 0 ? epsilon() : Math.signum(xDelta) * EPSILON;
                yDelta = Math.abs(yDelta) > EPSILON ? yDelta
                        : yDelta == 0 ? epsilon() : Math.signum(yDelta) * EPSILON;

                double deltaLength = Math.sqrt((xDelta * xDelta) + (yDelta * yDelta));

                double force = (repulsion_constant * repulsion_constant) / deltaLength;

                if (Double.isNaN(force)) {
                    throw new RuntimeException(
                            "Unexpected mathematical result in FRLayout:calcPositions [repulsion]");
                }
                fvd1.offset((xDelta / deltaLength) * force, (yDelta / deltaLength) * force);
            }
        }
    } catch (ConcurrentModificationException cme) {
        calcRepulsion(v1);
    }
}

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From source file:edu.uci.ics.jung.algorithms.layout.FRLayout2.java

protected void calcRepulsion(V v1) {
    Point2D fvd1 = frVertexData.get(v1);
    if (fvd1 == null)
        return;//from   www .  j  a v a2  s.  c o  m
    fvd1.setLocation(0, 0);
    boolean v1_locked = isLocked(v1);

    try {
        for (V v2 : getGraph().getVertices()) {

            boolean v2_locked = isLocked(v2);
            if (v1_locked && v2_locked)
                continue;
            if (v1 != v2) {
                Point2D p1 = transform(v1);
                Point2D p2 = transform(v2);
                if (p1 == null || p2 == null)
                    continue;
                double xDelta = p1.getX() - p2.getX();
                double yDelta = p1.getY() - p2.getY();

                double deltaLength = Math.max(EPSILON, p1.distanceSq(p2));

                double force = (repulsion_constant * repulsion_constant);// / deltaLength;

                double forceOverDeltaLength = force / deltaLength;

                assert Double.isNaN(
                        force) == false : "Unexpected mathematical result in FRLayout:calcPositions [repulsion]";

                if (v2_locked) {
                    // double the offset for v1, as v2 will not be moving in
                    // the opposite direction
                    fvd1.setLocation(fvd1.getX() + 2 * xDelta * forceOverDeltaLength,
                            fvd1.getY() + 2 * yDelta * forceOverDeltaLength);
                } else {
                    fvd1.setLocation(fvd1.getX() + xDelta * forceOverDeltaLength,
                            fvd1.getY() + yDelta * forceOverDeltaLength);
                }
            }
        }
    } catch (ConcurrentModificationException cme) {
        calcRepulsion(v1);
    }
}

---

From source file:StrokeChooserPanel.java

/**
 * Draws a line using the sample stroke.
 *
 * @param g  the graphics device./*  w  ww.  j  av  a  2s . c o m*/
 */
public void paintComponent(final Graphics g) {

    final Graphics2D g2 = (Graphics2D) g;
    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    final Dimension size = getSize();
    final Insets insets = getInsets();
    final double xx = insets.left;
    final double yy = insets.top;
    final double ww = size.getWidth() - insets.left - insets.right;
    final double hh = size.getHeight() - insets.top - insets.bottom;

    // calculate point one
    final Point2D one = new Point2D.Double(xx + 6, yy + hh / 2);
    // calculate point two
    final Point2D two = new Point2D.Double(xx + ww - 6, yy + hh / 2);
    // draw a circle at point one
    final Ellipse2D circle1 = new Ellipse2D.Double(one.getX() - 5, one.getY() - 5, 10, 10);
    final Ellipse2D circle2 = new Ellipse2D.Double(two.getX() - 6, two.getY() - 5, 10, 10);

    // draw a circle at point two
    g2.draw(circle1);
    g2.fill(circle1);
    g2.draw(circle2);
    g2.fill(circle2);

    // draw a line connecting the points
    final Line2D line = new Line2D.Double(one, two);
    if (this.stroke != null) {
        g2.setStroke(this.stroke);
        g2.draw(line);
    }

}

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From source file:Visualizer.FRWeightedLayout.java

protected void calcRepulsion(Functionality.Node v1) {
    FRVertexData fvd1 = getFRData(v1);/* w w w.  java  2  s.  co m*/
    if (fvd1 == null)
        return;
    fvd1.setLocation(0, 0);

    try {
        for (Functionality.Node v2 : getGraph().getVertices()) {

            //                if (isLocked(v2)) continue;
            if (v1 != v2) {
                Point2D p1 = transform(v1);
                Point2D p2 = transform(v2);
                if (p1 == null || p2 == null)
                    continue;
                double xDelta = p1.getX() - p2.getX();
                double yDelta = p1.getY() - p2.getY();

                double deltaLength = Math.max(EPSILON, Math.sqrt((xDelta * xDelta) + (yDelta * yDelta)));

                double force = (repulsion_constant * repulsion_constant) / deltaLength;

                if (Double.isNaN(force)) {
                    throw new RuntimeException(
                            "Unexpected mathematical result in FRWeightedLayout:calcPositions [repulsion]");
                }

                fvd1.offset((xDelta / deltaLength) * force, (yDelta / deltaLength) * force);
            }
        }
    } catch (ConcurrentModificationException cme) {
        calcRepulsion(v1);
    }
}

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From source file:com.newatlanta.bluedragon.CustomClusteredXYBarRenderer.java

private void drawItemLabel(Graphics2D g2, PlotOrientation orientation, XYDataset dataset, int series, int item,
        Rectangle2D bar, boolean negative) {

    XYItemLabelGenerator generator = getItemLabelGenerator(series, item);
    if (generator == null)
        return;//from  w ww.ja va2  s . c o  m

    String label = generator.generateLabel(dataset, series, item);
    if (label == null) {
        return; // nothing to do
    }

    Font labelFont = getItemLabelFont(series, item);
    g2.setFont(labelFont);
    Paint paint = getItemLabelPaint(series, item);
    g2.setPaint(paint);

    // find out where to place the label...
    ItemLabelPosition position = null;
    if (!negative) {
        position = getPositiveItemLabelPosition(series, item);
    } else {
        position = getNegativeItemLabelPosition(series, item);
    }

    // work out the label anchor point...
    Point2D anchorPoint = calculateLabelAnchorPoint(position.getItemLabelAnchor(), bar, orientation);

    TextUtilities.drawRotatedString(label, g2, (float) anchorPoint.getX(), (float) anchorPoint.getY(),
            position.getTextAnchor(), position.getAngle(), position.getRotationAnchor());
}

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From source file:net.panthema.BispanningGame.MyEditingGraphMousePlugin.java

/**
 * If the mouse is pressed in an empty area, create a new vertex there. If
 * the mouse is pressed on an existing vertex, prepare to create an edge
 * from that vertex to another//from   w  ww  .ja  va 2  s .c o m
 */
@SuppressWarnings("unchecked")
public void mousePressed(MouseEvent e) {
    if (checkModifiers(e)) {
        final VisualizationViewer<V, E> vv = (VisualizationViewer<V, E>) e.getSource();
        final Point2D p = e.getPoint();
        GraphElementAccessor<V, E> pickSupport = vv.getPickSupport();
        if (pickSupport != null) {
            Graph<V, E> graph = vv.getModel().getGraphLayout().getGraph();

            final V vertex = pickSupport.getVertex(vv.getModel().getGraphLayout(), p.getX(), p.getY());
            if (vertex != null) { // get ready to make an edge
                startVertex = vertex;
                down = e.getPoint();
                transformEdgeShape(down, down);
                vv.addPostRenderPaintable(edgePaintable);
            } else { // make a new vertex
                V newVertex = vertexFactory.create();
                Layout<V, E> layout = vv.getModel().getGraphLayout();
                graph.addVertex(newVertex);
                layout.setLocation(newVertex,
                        vv.getRenderContext().getMultiLayerTransformer().inverseTransform(e.getPoint()));

                if (graph instanceof MyGraph)
                    ((MyGraph) graph).graphChanged();
            }
        }
        vv.repaint();
    }
}

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From source file:Visualizer.SpringLayoutWeighted.java

protected void relaxEdges() {
    try {/*from w  w w  .j  a va2 s .  c  o m*/
        for (Functionality.Edge e : getGraph().getEdges()) {
            Pair<Functionality.Node> endpoints = getGraph().getEndpoints(e);
            Functionality.Node v1 = endpoints.getFirst();
            Functionality.Node v2 = endpoints.getSecond();

            Point2D p1 = transform(v1);
            Point2D p2 = transform(v2);
            if (p1 == null || p2 == null)
                continue;
            double vx = p1.getX() - p2.getX();
            double vy = p1.getY() - p2.getY();
            double len = Math.sqrt(vx * vx + vy * vy);

            double desiredLen = lengthFunction.transform(e);

            // round from zero, if needed [zero would be Bad.].
            len = (len == 0) ? .0001 : len;

            double f = force_multiplier * (desiredLen - len) / len;

            if (DataModule.displayedGraph.edgeIsDotted(v1, v2)) {
                f = f / 2.5;
            }

            if (DataModule.displayedGraph.edgeIsNormal(v1, v2)) {
                f = f / 1.7;
            }

            f = f * Math.pow(stretch, (getGraph().degree(v1) + getGraph().degree(v2) - 2));

            // the actual movement distance 'dx' is the force multiplied by the
            // distance to go.
            double dx = f * vx;
            double dy = f * vy;
            SpringVertexData v1D, v2D;
            v1D = springVertexData.get(v1);
            v2D = springVertexData.get(v2);

            v1D.edgedx += dx;
            v1D.edgedy += dy;
            v2D.edgedx += -dx;
            v2D.edgedy += -dy;
        }
    } catch (ConcurrentModificationException cme) {
        relaxEdges();
    }
}

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