Examples of Arc2D

com.google.code.appengine.awt.geom.Arc2D
java.awt.geom.Arc2D
Arc2D is the abstract superclass for all objects that store a 2D arc defined by a framing rectangle, start angle, angular extent (length of the arc), and a closure type (OPEN, CHORD, or PIE).
The arc is a partial section of a full ellipse which inscribes the framing rectangle of its parent {@link RectangularShape}. The angles are specified relative to the non-square framing rectangle such that 45 degrees always falls on the line from the center of the ellipse to the upper right corner of the framing rectangle. As a result, if the framing rectangle is noticeably longer along one axis than the other, the angles to the start and end of the arc segment will be skewed farther along the longer axis of the frame.
The actual storage representation of the coordinates is left to the subclass. @version 10 Feb 1997 @author Jim Graham @since 1.2

Examples of java.awt.geom.Arc2D

                double y1 = line.getY1();
                double x2 = line.getX2();
                double y2 = line.getY2();
                double r =
                    Math.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1));
                Arc2D arc = createArc(x1, y1, r, angle, axisAngle);
                drawDashedShape(g, arc);
            }
        }
        // Maybe draw the grid:
        if (showGrid) {

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Examples of java.awt.geom.Arc2D

    private static Arc2D createArc(
        double cx, double cy, double r, double start, double end
    ) {
        start = - RotorControl.radiansToDegrees(start);
        end = - RotorControl.radiansToDegrees(end);
        Arc2D arc = new Arc2D.Double(
            cx - r, cy - r, 2 * r, 2 * r, start, end - start, Arc2D.PIE
        );
        return arc;
    }

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Examples of java.awt.geom.Arc2D

    outlines.add( new Ellipse2D.Double( -0.75, -0.75, 1.5, 1.5 ));
    outlinePaints.add( pntCtrlOut );
    
    double      angDeg, angRad, dx, dy;
    double      speakerWidth  = Math.max( 4, Math.min( 10, deltaAngle / 2 ));
    Arc2D      arc1 = new Arc2D.Double( -1.15, -1.15, 2.3, 2.3, 0, speakerWidth, Arc2D.PIE );
    Arc2D      arc2 = new Arc2D.Double( -1.05, -1.05, 2.1, 2.1, 0, speakerWidth, Arc2D.PIE );
//    GeneralPath    gen;
    Area      area;
    
    for( int i = 0; i < numSpots; i++ ) {
      angDeg  = startAngle + i * deltaAngle;
      angRad  = (-angDeg + 90) * Math.PI / 180;
      dx    = Math.cos( angRad );
      dy    = Math.sin( angRad );
      outlines.add( new Line2D.Double( 0.0, 0.0, dx, dy ));
      outlinePaints.add( pntCtrlOut );
      arc1.setAngleStart( angDeg - 90 - speakerWidth/2 );
      arc2.setAngleStart( angDeg - 90 - speakerWidth/2 );
      area  = new Area( arc1 );
      area.subtract( new Area( arc2 ));
      areas.add( area );
      areaPaints.add( pntCtrlIn );
    }

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Examples of java.awt.geom.Arc2D

        if(l.size()<2 && !(l.get(0) instanceof SVGPathSegMoveto) && !(l.get(1) instanceof SVGPathSegArc))
      throw new IllegalArgumentException();


    sx = ((SVGPathSegMoveto)l.get(0)).getX();
    sy = ((SVGPathSegMoveto)l.get(0)).getY();
    final Arc2D arc = ((SVGPathSegArc)l.get(1)).getArc2D(sx, sy);
    double angle = Math.toRadians(arc.getAngleStart())%(Math.PI*2);
    shape.setAngleStart(angle);
    angle = Math.toRadians(arc.getAngleExtent()+arc.getAngleStart())%(Math.PI*2);
    shape.setAngleEnd(angle);
    shape.setPosition(arc.getMinX(), arc.getMaxY());
    shape.setWidth(arc.getMaxX()-arc.getMinX());


    if(l.size()>2)
      if(l.get(2) instanceof SVGPathSegClosePath)
        shape.setArcStyle(ArcStyle.CHORD);
      else

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Examples of java.awt.geom.Arc2D

                stream.writeDouble(ellipse.getY());
                stream.writeDouble(ellipse.getWidth());
                stream.writeDouble(ellipse.getHeight());
            }
            else if (shape instanceof Arc2D) {
                final Arc2D arc = (Arc2D) shape;
                stream.writeObject(Arc2D.class);
                stream.writeDouble(arc.getX());
                stream.writeDouble(arc.getY());
                stream.writeDouble(arc.getWidth());
                stream.writeDouble(arc.getHeight());
                stream.writeDouble(arc.getAngleStart());
                stream.writeDouble(arc.getAngleExtent());
                stream.writeInt(arc.getArcType());
            }
            else if (shape instanceof GeneralPath) {
                stream.writeObject(GeneralPath.class);
                final PathIterator pi = shape.getPathIterator(null);
                final float[] args = new float[6];

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Examples of java.awt.geom.Arc2D

    /**
     * Serialize an <code>Arc2D.Float</code> instance and check that it
     * can be deserialized correctly.
     */
    public void testArc2DFloatSerialization() {
        Arc2D a1 = new Arc2D.Float(
            1.0f, 2.0f, 3.0f, 4.0f, 5.0f, 6.0f, Arc2D.PIE
        );
        Arc2D a2 = null;
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutputStream out = new ObjectOutputStream(buffer);
            SerialUtilities.writeShape(a1, out);
            out.close();

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Examples of java.awt.geom.Arc2D

    /**
     * Serialize an <code>Arc2D.Double</code> instance and check that it
     * can be deserialized correctly.
     */
    public void testArc2DDoubleSerialization() {
        Arc2D a1 = new Arc2D.Double(1.0, 2.0, 3.0, 4.0, 5.0, 6.0, Arc2D.PIE);
        Arc2D a2 = null;
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutputStream out = new ObjectOutputStream(buffer);
            SerialUtilities.writeShape(a1, out);
            out.close();

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Examples of java.awt.geom.Arc2D

            // arc and ask for it's end angle and get the tangent there.
            Point2D prevEndPoint = 
                getSegmentTerminatingPoint(prev, prevSegType);
            boolean large   = (curr[3]!=0.);
            boolean goLeft = (curr[4]!=0.);
            Arc2D arc = ExtendedGeneralPath.computeArc
                (prevEndPoint.getX(), prevEndPoint.getY(),
                 curr[0], curr[1], curr[2],
                 large, goLeft, curr[5], curr[6]);
            double theta = arc.getAngleStart()+arc.getAngleExtent();
            theta = Math.toRadians(theta);
            dx = -arc.getWidth()/2.0*Math.sin(theta);
            dy = arc.getHeight()/2.0*Math.cos(theta);


            // System.out.println("In  Theta:  " + Math.toDegrees(theta) +  
            //                    " Dx/Dy: " + dx + "/" + dy);
            if (curr[2] != 0) {
                double ang = Math.toRadians(-curr[2]);

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Examples of java.awt.geom.Arc2D

        case ExtendedPathIterator.SEG_ARCTO: {
            // If the current segment is an ARCTO then we build the
            // arc and ask for it's end angle and get the tangent there.
            boolean large   = (next[3]!=0.);
            boolean goLeft = (next[4]!=0.);
            Arc2D arc = ExtendedGeneralPath.computeArc
                (currEndPoint.getX(), currEndPoint.getY(),
                 next[0], next[1], next[2],
                 large, goLeft, next[5], next[6]);
            double theta = arc.getAngleStart();
            theta = Math.toRadians(theta);
            dx = -arc.getWidth()/2.0*Math.sin(theta);
            dy = arc.getHeight()/2.0*Math.cos(theta);
            // System.out.println("Out Theta:  " + Math.toDegrees(theta) +  
            //                    " Dx/Dy: " + dx + "/" + dy);
            if (next[2] != 0) {
                double ang = Math.toRadians(-next[2]);
                double sinA = Math.sin(ang);

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Examples of java.awt.geom.Arc2D

            // If the endpoints (x, y) and (x0, y0) are identical, then this
            // is equivalent to omitting the elliptical arc segment entirely.
            return;
        }


        Arc2D arc = computeArc(x0, y0, rx, ry, angle, 
                               largeArcFlag, sweepFlag, x, y);
        if (arc == null) return;


        AffineTransform t = AffineTransform.getRotateInstance
            (Math.toRadians(angle), arc.getCenterX(), arc.getCenterY());
        Shape s = t.createTransformedShape(arc);
        path.append(s, true);


        makeRoom(7);
        types [numSeg++]  = ExtendedPathIterator.SEG_ARCTO;

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