Examples with Ellipse2D aima.core.util.math.geom.shapes.Ellipse2D used on opensource projects

Example 1 with Ellipse2D

use of aima.core.util.math.geom.shapes.Ellipse2D in project aima-java by aimacode.

the class SVGGroupParser method parseEllipse.

/**
	 * Parses the current element as an ellipse. This ellipse is added to the {@code shapes} if it is rendered.
	 */
private void parseEllipse() {
    String value = reader.getAttributeValue(null, CX_ATTRIBUTE);
    final double cx = parseNumber(value);
    value = reader.getAttributeValue(null, CY_ATTRIBUTE);
    final double cy = parseNumber(value);
    value = reader.getAttributeValue(null, RX_ATTRIBUTE);
    final double rx = parseNumber(value);
    value = reader.getAttributeValue(null, RY_ATTRIBUTE);
    final double ry = parseNumber(value);
    if (rx != 0.0d && ry != 0.0d) {
        //SVG standard specifies that the radius is forced to have a value. Otherwise the rendering for this element is disabled.
        IGeometric2D elipse = new Ellipse2D(new Point2D(cx, cy), rx, ry).transform(currentMatrix);
        shapes.add(elipse);
    }
}

Example 2 with Ellipse2D

use of aima.core.util.math.geom.shapes.Ellipse2D in project aima-java by aimacode.

the class SVGGroupParserTest method setUp.

@Before
public void setUp() {
    testGroup = new ArrayList<IGeometric2D>();
    testGroup.ensureCapacity(10);
    testGroup.add(new Polyline2D(testVertices1, true));
    testGroup.add(new Line2D(15.0d, 15.0d, 200.0d, 100.0d));
    testGroup.add(new Ellipse2D(new Point2D(300.0d, 80.0d), 60.0d, 40.0d));
    testGroup.add(new Circle2D(new Point2D(180.0d, 160.0d), 20.0d));
    testGroup.add(new Rect2D(161.0d, 200.0d, 261.0d, 250.0d));
    testGroup.add(new Polyline2D(testVertices2, true));
    testGroup.add(new Line2D(0.0d, 0.0d, 700.0d, 0.0d));
    testGroup.add(new Line2D(700.0d, 0.0d, 700.0d, 500.0d));
    testGroup.add(new Line2D(700.0d, 500.0d, 0.0d, 500.0d));
    testGroup.add(new Line2D(0.0d, 500.0d, 0.0d, 0.0d));
    testParser = new SVGGroupParser();
}

Example 3 with Ellipse2D

use of aima.core.util.math.geom.shapes.Ellipse2D in project aima-java by aimacode.

the class SVGGroupParserTest method testParse.

@Test
public void testParse() {
    IGeometric2D x;
    IGeometric2D y;
    Iterator<IGeometric2D> j;
    try {
        j = testParser.parse(this.getClass().getResourceAsStream(file), groupID).iterator();
        Iterator<IGeometric2D> i = testGroup.iterator();
        while (i.hasNext()) {
            x = i.next();
            y = j.next();
            if (x instanceof Circle2D && y instanceof Circle2D) {
                assertEquals("Circle: Center-X.", ((Circle2D) (y)).getCenter().getX(), ((Circle2D) (x)).getCenter().getX(), 0.000005d);
                assertEquals("Circle: Center-Y.", ((Circle2D) (y)).getCenter().getY(), ((Circle2D) (x)).getCenter().getY(), 0.000005d);
                assertEquals("Circle: Radius.", ((Circle2D) (y)).getRadius(), ((Circle2D) (x)).getRadius(), 0.000005d);
            } else if (x instanceof Ellipse2D && y instanceof Ellipse2D) {
                assertEquals("Ellipse: Center-X.", ((Ellipse2D) (y)).getCenter().getX(), ((Ellipse2D) (x)).getCenter().getX(), 0.000005d);
                assertEquals("Ellipse: Center-Y.", ((Ellipse2D) (y)).getCenter().getY(), ((Ellipse2D) (x)).getCenter().getY(), 0.000005d);
                assertEquals("Ellipse: Horizontal length.", ((Ellipse2D) (y)).getHorizontalLength(), ((Ellipse2D) (x)).getHorizontalLength(), 0.000005d);
                assertEquals("Ellipse: Vertical length.", ((Ellipse2D) (y)).getVerticalLength(), ((Ellipse2D) (x)).getVerticalLength(), 0.000005d);
                assertEquals("Ellipse: Rotation angle.", ((Ellipse2D) (y)).getAngle(), ((Ellipse2D) (x)).getAngle(), 0.000005d);
            } else if (x instanceof Line2D && y instanceof Line2D) {
                assertEquals("Line: Start-X.", ((Line2D) (y)).getStart().getX(), ((Line2D) (x)).getStart().getX(), 0.000005d);
                assertEquals("Line: Start-Y.", ((Line2D) (y)).getStart().getY(), ((Line2D) (x)).getStart().getY(), 0.000005d);
                assertEquals("Line: End-X.", ((Line2D) (y)).getEnd().getX(), ((Line2D) (x)).getEnd().getX(), 0.000005d);
                assertEquals("Line: End-Y.", ((Line2D) (y)).getEnd().getY(), ((Line2D) (x)).getEnd().getY(), 0.000005d);
            } else if (x instanceof Polyline2D && y instanceof Polyline2D) {
                if (((Polyline2D) x).getVertexes().length != ((Polyline2D) x).getVertexes().length)
                    fail();
                else {
                    for (int k = 0; k < ((Polyline2D) x).getVertexes().length; k++) {
                        assertEquals("Polygon: Vertex-X", ((Polyline2D) x).getVertexes()[k].getX(), ((Polyline2D) y).getVertexes()[k].getX(), 0.000005d);
                        assertEquals("Polygon: Vertex-Y", ((Polyline2D) x).getVertexes()[k].getY(), ((Polyline2D) y).getVertexes()[k].getY(), 0.000005d);
                    }
                }
            } else if (x instanceof Rect2D && y instanceof Rect2D) {
                assertEquals("Line: UpperLeft-X.", ((Rect2D) (y)).getUpperLeft().getX(), ((Rect2D) (x)).getUpperLeft().getX(), 0.000005d);
                assertEquals("Line: UpperLeft-Y.", ((Rect2D) (y)).getUpperLeft().getY(), ((Rect2D) (x)).getUpperLeft().getY(), 0.000005d);
                assertEquals("Line: LowerRight-X.", ((Rect2D) (y)).getLowerRight().getX(), ((Rect2D) (x)).getLowerRight().getX(), 0.000005d);
                assertEquals("Line: LowerRight-Y.", ((Rect2D) (y)).getLowerRight().getY(), ((Rect2D) (x)).getLowerRight().getY(), 0.000005d);
            }
        }
        assertFalse("Both groups are the same length and contain only legal shapes.", i.hasNext() || j.hasNext());
    } catch (XMLStreamException e) {
        e.printStackTrace();
        fail();
    } catch (NullPointerException e) {
        e.printStackTrace();
        fail();
    }
}

Example 4 with Ellipse2D

use of aima.core.util.math.geom.shapes.Ellipse2D in project aima-java by aimacode.

the class Ellipse2DTest method setUp.

@Before
public void setUp() {
    center = new Point2D(12.0d, 14.0d);
    testEllipse = new Ellipse2D(center, 10.0d, 5.0d);
    zeroPoint = new Point2D(0.0d, 0.0d);
}

Example 5 with Ellipse2D

use of aima.core.util.math.geom.shapes.Ellipse2D in project aima-java by aimacode.

the class Ellipse2DTest method testRayCast.

@Test
public final void testRayCast() {
    // static tests
    assertEquals("Ray doesn't intersect.", Double.POSITIVE_INFINITY, testEllipse.rayCast(new Ray2D(0.0d, 0.0d, 0.0d, 2.0d)), 0.000005d);
    assertEquals("Ray intersects.", 2.0d, testEllipse.rayCast(new Ray2D(0.0d, 14.0d, 12.0d, 14.0d)), 0.000005d);
    // serial tests
    Ellipse2D randomEllipse;
    Point2D randomPointOnEllipse;
    Point2D randomPoint;
    double currentXRadius;
    double currentYRadius;
    double xvalue;
    double yvalue;
    double randomAngle;
    int sector;
    int counter = 1000;
    do {
        randomEllipse = new Ellipse2D(new Point2D(Util.generateRandomDoubleBetween(-500.0d, 500.0d), Util.generateRandomDoubleBetween(-500.0d, 500.0d)), Util.generateRandomDoubleBetween(0.0d, 200.0d), Util.generateRandomDoubleBetween(0.0d, 200.0d));
        currentXRadius = randomEllipse.getHorizontalLength();
        currentYRadius = randomEllipse.getVerticalLength();
        xvalue = Util.generateRandomDoubleBetween(0.0d, currentXRadius);
        yvalue = (currentYRadius * Math.sqrt(currentXRadius * currentXRadius - xvalue * xvalue)) / currentXRadius;
        sector = Util.randomNumberBetween(1, 4);
        switch(sector) {
            case 2:
                {
                    yvalue = -yvalue;
                    randomPoint = new Point2D(Util.generateRandomDoubleBetween(randomEllipse.getCenter().getX() + xvalue, 1000.0d), Util.generateRandomDoubleBetween(-1000.0d, randomEllipse.getCenter().getY() + yvalue));
                    break;
                }
            case 3:
                {
                    xvalue = -xvalue;
                    yvalue = -yvalue;
                    randomPoint = new Point2D(Util.generateRandomDoubleBetween(-1000.0d, randomEllipse.getCenter().getX() + xvalue), Util.generateRandomDoubleBetween(-1000.0d, randomEllipse.getCenter().getY() + yvalue));
                    break;
                }
            case 4:
                {
                    xvalue = -xvalue;
                    randomPoint = new Point2D(Util.generateRandomDoubleBetween(-1000.0d, randomEllipse.getCenter().getX() + xvalue), Util.generateRandomDoubleBetween(randomEllipse.getCenter().getY() + yvalue, 1000.0d));
                    break;
                }
            default:
                {
                    randomPoint = new Point2D(Util.generateRandomDoubleBetween(randomEllipse.getCenter().getX() + xvalue, 1000.0d), Util.generateRandomDoubleBetween(randomEllipse.getCenter().getY() + yvalue, 1000.0d));
                    break;
                }
        }
        randomPointOnEllipse = new Point2D(randomEllipse.getCenter().getX() + xvalue, randomEllipse.getCenter().getY() + yvalue);
        randomAngle = Util.generateRandomDoubleBetween(-Math.PI / 2, Math.PI / 2);
        randomEllipse = (Ellipse2D) (randomEllipse.transform(TransformMatrix2D.rotate(randomAngle)));
        randomPoint = TransformMatrix2D.rotate(randomAngle).multiply(randomPoint);
        randomPointOnEllipse = TransformMatrix2D.rotate(randomAngle).multiply(randomPointOnEllipse);
        // System.out.printf("RayCast No. %d: Ellipse at (%.2f,%.2f), radii: (%.2f,%.2f). Rotation angle: %.2f, original angle: %.2f, point on ellipse: (%.2f,%.2f), outside point: (%.2f,%.2f), distance: %.2f.\n", 1000-counter, randomEllipse.getCenter().getX(), randomEllipse.getCenter().getY(), randomEllipse.getHorizontalLength(), randomEllipse.getVerticalLength(), randomEllipse.getAngle(), randomAngle, randomPointOnEllipse.getX(), randomPointOnEllipse.getY(), randomPoint.getX(), randomPoint.getY(), randomPoint.distance(randomPointOnEllipse));
        assertEquals("Serial rayCast test for Circle2D.", randomPoint.distance(randomPointOnEllipse), randomEllipse.rayCast(new Ray2D(randomPoint, randomPoint.vec(randomPointOnEllipse))), 0.000005d);
        counter -= 1;
    } while (counter > 0);
}