Examples of jsky.coords.CoordinateConverter

jsky.coords.CoordinateConverter
This interface may be implemented by classes that display images and can convert between different coordinate systems, optionally including world coordinates. Methods are available for converting between the following coordinate systems:

Screen Coordinates

The origin (0,0) is always at the upper left corner of the window. Whole pixels are counted and no transformations are taken into account.

Canvas Coordinates

The origin (0,0) is at the upper left corner of the image. Whole pixels are counted and no transformations are taken into account.

Image Coordinates

The origin is at lower left (FITS style) after all transformations are undone. At mag 1, the origin is (1, 1), otherwise it is a fraction of a pixel (0.5, 0.5). Image coordinates correspond to the coordinates in a FITS image.

User Coordinates

The origin (0.0, 0.0) is at upper left after all transformations undone. User coordinates are like image coordinates, except that the Y axis is reversed and the origin at mag 1 is (0., 0.) instead of (1. 1).

World Coordinates

World coordinates are converted from image coordinates based on the keywords in the image header, if available.

@version $Revision: 1.2 $ $Date: 2009/04/21 13:31:17 $ @author Allan Brighton

     */
    public CanvasFigure makeLabeledRectangle(Rectangle2D.Double rect, int coordType, Paint fill,
                                             Paint outline, float lineWidth,
                                             String label, int anchor, Paint labelColor, Font font,
                                             Interactor interactor) {
        CoordinateConverter coordinateConverter = _imageDisplay.getCoordinateConverter();
        Point2D.Double p = new Point2D.Double(rect.x, rect.y);
        coordinateConverter.convertCoords(p, coordType, CoordinateConverter.SCREEN, false);
        Point2D.Double size = new Point2D.Double(rect.width, rect.height);
        coordinateConverter.convertCoords(size, coordType, CoordinateConverter.SCREEN, true);
        Rectangle2D.Double r = new Rectangle2D.Double(p.x, p.y, size.x, size.y);
        return makeLabeledFigure(r, fill, outline, lineWidth, label, anchor, labelColor, font, interactor);
    }

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     * @param interactor the interactor for the figure (SelctionInteractor, DragInteractor, etc.)
     * @return the new figure
     */
    public CanvasFigure makeRectangle(Rectangle2D.Double rect, int coordType, Paint fill,
                                      Paint outline, float lineWidth, Interactor interactor) {
        CoordinateConverter coordinateConverter = _imageDisplay.getCoordinateConverter();
        Point2D.Double p = new Point2D.Double(rect.x, rect.y);
        coordinateConverter.convertCoords(p, coordType, CoordinateConverter.SCREEN, false);
        Point2D.Double size = new Point2D.Double(rect.width, rect.height);
        coordinateConverter.convertCoords(size, coordType, CoordinateConverter.SCREEN, true);
        Rectangle2D.Double r = new Rectangle2D.Double(p.x, p.y, size.x, size.y);
        return makeFigure(r, fill, outline, lineWidth, interactor);
    }

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     * @param lineWidth the line width
     * @return the new figure
     */
    public RotatableCanvasFigure makeRoiRectangle(Rectangle2D.Double rect, int coordType, Paint fill,
                                         Paint outline, float lineWidth) {
        CoordinateConverter coordinateConverter = _imageDisplay.getCoordinateConverter();
        Point2D.Double p = new Point2D.Double(rect.x, rect.y);
        coordinateConverter.convertCoords(p, coordType, CoordinateConverter.SCREEN, false);
        Point2D.Double size = new Point2D.Double(rect.width, rect.height);
        coordinateConverter.convertCoords(size, coordType, CoordinateConverter.SCREEN, true);


        Rectangle2D.Double r = new Rectangle2D.Double(p.x, p.y, size.x, size.y);
        return new RoiRectangle(r, fill, outline, lineWidth, _roiSelectionInteractor);
    }

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     * @param lineWidth the line width
     * @return the new figure
     */
    public RotatableCanvasFigure makeRoiEllipse(Ellipse2D.Double ellipse, int coordType, Paint fill,
                                       Paint outline, float lineWidth) {
        CoordinateConverter coordinateConverter = _imageDisplay.getCoordinateConverter();
        Point2D.Double p = new Point2D.Double(ellipse.x, ellipse.y);
        coordinateConverter.convertCoords(p, coordType, CoordinateConverter.SCREEN, false);
        Point2D.Double size = new Point2D.Double(ellipse.width, ellipse.height);
        coordinateConverter.convertCoords(size, coordType, CoordinateConverter.SCREEN, true);


        Ellipse2D.Double e = new Ellipse2D.Double(p.x, p.y, size.x, size.y);
        return new RoiEllipse(e, fill, outline, lineWidth, _roiSelectionInteractor);
    }

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     */
    public CanvasFigure makeLabeledEllipse(Ellipse2D.Double ellipse, int coordType, Paint fill,
                                           Paint outline, float lineWidth,
                                           String label, int anchor, Paint labelColor, Font font,
                                           Interactor interactor) {
        CoordinateConverter coordinateConverter = _imageDisplay.getCoordinateConverter();
        Point2D.Double p = new Point2D.Double(ellipse.x, ellipse.y);
        coordinateConverter.convertCoords(p, coordType, CoordinateConverter.SCREEN, false);
        Point2D.Double size = new Point2D.Double(ellipse.width, ellipse.height);
        coordinateConverter.convertCoords(size, coordType, CoordinateConverter.SCREEN, true);
        Ellipse2D.Double r = new Ellipse2D.Double(p.x, p.y, size.x, size.y);
        return makeLabeledFigure(r, fill, outline, lineWidth, label, anchor, labelColor, font, interactor);
    }

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     * @param interactor the interactor for the figure (SelctionInteractor, DragInteractor, etc.)
     * @return the new figure
     */
    public RotatableCanvasFigure makeEllipse(Ellipse2D.Double ellipse, int coordType, Paint fill,
                                    Paint outline, float lineWidth, Interactor interactor) {
        CoordinateConverter coordinateConverter = _imageDisplay.getCoordinateConverter();
        Point2D.Double p = new Point2D.Double(ellipse.x, ellipse.y);
        coordinateConverter.convertCoords(p, coordType, CoordinateConverter.SCREEN, false);
        Point2D.Double size = new Point2D.Double(ellipse.width, ellipse.height);
        coordinateConverter.convertCoords(size, coordType, CoordinateConverter.SCREEN, true);
        Ellipse2D.Double r = new Ellipse2D.Double(p.x, p.y, size.x, size.y);
        return makeFigure(r, fill, outline, lineWidth, interactor);
    }

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     * @param interactor determines the behavior of the figure (may be null)
     * @return the new figure
     */
    public CanvasFigure makeLabel(Point2D.Double pos, int coordType, String text, Paint color,
                                  Font font, Interactor interactor) {
        CoordinateConverter coordinateConverter = _imageDisplay.getCoordinateConverter();
        Point2D.Double p = new Point2D.Double(pos.x, pos.y);
        coordinateConverter.convertCoords(p, coordType, CoordinateConverter.SCREEN, false);
        return new ImageLabel(text, p, color, font, interactor);
    }

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            // of the image), we still want to return the X,Y values of the area clicked.
            center = new Point2D.Double(x + w / 2.0, y + h / 2.0);
        }


        // get the center position in image coordinates
        CoordinateConverter cc = _imageDisplay.getCoordinateConverter();
        cc.userToImageCoords(center, false);
        _imageX = center.x;
        _imageY = center.y;


        // get the center position in world coordinates
        cc.imageToWorldCoords(center, false);
        _centerPos = new WorldCoords(center, cc.getEquinox());
    }

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Related Classes of jsky.coords.CoordinateConverter

jsky.image.graphics.CoordsGridLayer

jsky.image.graphics.DivaImageGraphics

jsky.image.graphics.gui.FITSGraphics

jsky.image.gui.ImagePanner

jsky.image.gui.PickObject

jsky.image.gui.PickObjectStatistics

jsky.navigator.NavigatorQueryTool

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