| | |
| | | |
| | | import com.ximple.util.DgnUtility; |
| | | |
| | | public class EllipseElement extends Element implements GeometryConverter |
| | | { |
| | | public class EllipseElement extends Element implements GeometryConverter { |
| | | private static final Logger logger = Logger.getLogger(EllipseElement.class); |
| | | |
| | | public EllipseElement(byte[] raw) |
| | | { |
| | | EllipseElement(byte[] raw) { |
| | | super(raw); |
| | | } |
| | | |
| | | public double getStartAngle() |
| | | { |
| | | public double getStartAngle() { |
| | | return 0.0; |
| | | } |
| | | |
| | | public void setStartAngle(double value) |
| | | { |
| | | public void setStartAngle(double value) { |
| | | } |
| | | |
| | | public double getSweepAngle() |
| | | { |
| | | public double getSweepAngle() { |
| | | return 360.0; |
| | | } |
| | | |
| | | public void setSweepAngle(double value) |
| | | { |
| | | public void setSweepAngle(double value) { |
| | | } |
| | | |
| | | public double getPrimary() |
| | | { |
| | | public double getPrimary() { |
| | | rawBuffer.position(18 * 2); |
| | | ByteOrder bo = rawBuffer.order(); |
| | | rawBuffer.order(ByteOrder.BIG_ENDIAN); |
| | |
| | | return DgnUtility.convertDGNToIEEEDouble(primary) / 1000.0; |
| | | } |
| | | |
| | | public void setPrimary(double value) |
| | | { |
| | | public void setPrimary(double value) { |
| | | double temp = value * 1000.0; |
| | | short[] primary = DgnUtility.convertIEEEDoubleToDGN(temp); |
| | | |
| | | System.arraycopy(primary, 0, raw, 18, 4); |
| | | } |
| | | |
| | | public double getSecondary() |
| | | { |
| | | public double getSecondary() { |
| | | rawBuffer.position(22 * 2); |
| | | ByteOrder bo = rawBuffer.order(); |
| | | rawBuffer.order(ByteOrder.BIG_ENDIAN); |
| | |
| | | return DgnUtility.convertDGNToIEEEDouble(secondary) / 1000.0; |
| | | } |
| | | |
| | | public void setSecondary(double value) |
| | | { |
| | | public void setSecondary(double value) { |
| | | double temp = value * 1000.0; |
| | | short[] secondary = DgnUtility.convertIEEEDoubleToDGN(temp); |
| | | |
| | | System.arraycopy(secondary, 0, raw, 22, 4); |
| | | } |
| | | |
| | | public double getRotationAngle() |
| | | { |
| | | public double getRotationAngle() { |
| | | int rotation = (raw[26] << 16 & 0xffff0000); |
| | | rotation |= raw[27] & 0x0000ffff; |
| | | |
| | | return DgnUtility.converIntToRotation(rotation); |
| | | } |
| | | |
| | | public void setRotationAngle(double value) |
| | | { |
| | | public void setRotationAngle(double value) { |
| | | int angle = DgnUtility.converRotatioToInt(value); |
| | | |
| | | raw[26] = (short) (angle >> 16 & 0x0000ffff); |
| | | raw[27] = (short) (angle & 0x0000ffff); |
| | | } |
| | | |
| | | public Coordinate getOrigin() |
| | | { |
| | | public Coordinate getOrigin() { |
| | | rawBuffer.position(28 * 2); |
| | | ByteOrder bo = rawBuffer.order(); |
| | | rawBuffer.order(ByteOrder.BIG_ENDIAN); |
| | |
| | | return new Coordinate(dx, dy); |
| | | } |
| | | |
| | | public void setOrigin(Coordinate value) |
| | | { |
| | | public void setOrigin(Coordinate value) { |
| | | double temp = DgnUtility.converCoordToUnit(value.x); |
| | | short[] x = DgnUtility.convertIEEEDoubleToDGN(temp); |
| | | |
| | |
| | | System.arraycopy(y, 0, raw, 32, 4); |
| | | } |
| | | |
| | | public Geometry toGeometry(GeometryFactory factory) |
| | | { |
| | | public Geometry toGeometry(GeometryFactory factory) { |
| | | double temp = Math.abs(getStartAngle() - getSweepAngle()); |
| | | temp /= 4; |
| | | int pts = (temp < 3) ? 3 : (int) temp; |
| | | return factory.createPolygon(factory.createLinearRing(convertToLineString(pts)), null); |
| | | return factory.createPolygon(factory.createLinearRing(convertToPolygon(pts)), null); |
| | | } |
| | | |
| | | private Coordinate[] convertToLineString(int pts) |
| | | { |
| | | private Coordinate[] convertToPolygon(int pts) { |
| | | ArrayList<Coordinate> result = new ArrayList<Coordinate>(); |
| | | double beta = DgnUtility.converRotationToRadian(-getRotationAngle()); |
| | | double startAngle = getStartAngle(); |
| | |
| | | double endAngle = startAngle + sweepAngle; |
| | | double steps = sweepAngle / pts; |
| | | double current; |
| | | if (sweepAngle < 0) |
| | | { |
| | | for (current = startAngle; current > endAngle; current += steps) |
| | | { |
| | | Coordinate pt = computePointOnArcByAngle(beta, current); |
| | | result.add(pt); |
| | | } |
| | | |
| | | } else |
| | | { |
| | | for (current = startAngle; current < endAngle; current += steps) |
| | | { |
| | | Coordinate pt = computePointOnArcByAngle(beta, current); |
| | | result.add(pt); |
| | | } |
| | | //sweepAngle always 360 degree |
| | | for (current = startAngle; current < endAngle; current += steps) { |
| | | Coordinate pt = computePointOnEllipseByAngle(beta, current); |
| | | result.add(pt); |
| | | } |
| | | |
| | | Coordinate pt = computePointOnArcByAngle(beta, endAngle); |
| | | Coordinate pt = computePointOnEllipseByAngle(beta, endAngle); |
| | | result.add(pt); |
| | | |
| | | if (!result.get(0).equals(result.get(result.size() - 1))) |
| | | { |
| | | if (!result.get(0).equals(result.get(result.size() - 1))) { |
| | | result.add(result.get(0)); |
| | | } |
| | | |
| | |
| | | } |
| | | |
| | | |
| | | private Coordinate computePointOnArcByAngle(double beta, double current) |
| | | { |
| | | private Coordinate computePointOnEllipseByAngle(double beta, double current) { |
| | | double sinbeta = Math.sin(beta); |
| | | double cosbeta = Math.cos(beta); |
| | | Coordinate pt = new Coordinate(); |
| | |
| | | double sinalpha = Math.sin(alpha); |
| | | double cosalpha = Math.cos(alpha); |
| | | pt.x = getOrigin().x + (getPrimary() * cosalpha * cosbeta - |
| | | getSecondary() * sinalpha * sinbeta); |
| | | getSecondary() * sinalpha * sinbeta); |
| | | pt.y = getOrigin().y + (getPrimary() * cosalpha * sinbeta + |
| | | getSecondary() * sinalpha * cosbeta); |
| | | getSecondary() * sinalpha * cosbeta); |
| | | return pt; |
| | | } |
| | | |
| | | public static class ElementHandler extends Element.ElementHandler |
| | | { |
| | | public static class ElementHandler extends Element.ElementHandler { |
| | | private static ElementHandler instance = null; |
| | | |
| | | public ElementHandler() |
| | | { |
| | | public ElementHandler() { |
| | | super(ElementType.ELLIPSE); |
| | | } |
| | | |
| | | public static IElementHandler getInstance() |
| | | { |
| | | if (instance == null) |
| | | { |
| | | public static IElementHandler getInstance() { |
| | | if (instance == null) { |
| | | instance = new ElementHandler(); |
| | | } |
| | | |
| | | return instance; |
| | | } |
| | | |
| | | protected Element createElement(byte[] raw) |
| | | { |
| | | protected Element createElement(byte[] raw) { |
| | | return new EllipseElement(raw); |
| | | } |
| | | } |