Package org.locationtech.jts.jump.workbench.ui

Class Viewport

java.lang.Object

org.locationtech.jts.jump.workbench.ui.Viewport

All Implemented Interfaces:

Java2DConverter.PointConverter

public class Viewport
extends Object
implements Java2DConverter.PointConverter

Controls the area on the model being viewed by a LayerViewPanel.

Constructor Summary

Constructors

Constructor	Description
Viewport(LayerViewPanel panel)

Method Summary

Modifier and Type	Method	Description
void	addListener(ViewportListener l)
org.locationtech.jts.geom.Envelope	fullExtent()
org.locationtech.jts.geom.Envelope	getEnvelopeInModelCoordinates()
Java2DConverter	getJava2DConverter()
AffineTransform	getModelToViewTransform()
Point2D	getOriginInModelCoordinates()
LayerViewPanel	getPanel()
double	getScale()
ZoomHistory	getZoomHistory()
void	initialize(double newScale, Point2D newViewOriginAsPerceivedByModel)	Set both values but repaint once.
static AffineTransform	modelToViewTransform(double scale, Point2D viewOriginAsPerceivedByModel, double panelHeight)
void	removeListener(ViewportListener l)
org.locationtech.jts.geom.Coordinate	toModelCoordinate(Point2D viewPoint)
org.locationtech.jts.geom.Envelope	toModelEnvelope(double x1, double x2, double y1, double y2)
Point2D	toModelPoint(Point2D viewPoint)
Point2D	toViewPoint(Point2D modelPoint)
Point2D	toViewPoint(org.locationtech.jts.geom.Coordinate modelCoordinate)
Collection	toViewPoints(Collection modelCoordinates)
Rectangle2D	toViewRectangle(org.locationtech.jts.geom.Envelope envelope)
void	update()
void	zoom(Point2D centreOfNewViewAsPerceivedByOldView, double widthOfNewViewAsPerceivedByOldView, double heightOfNewViewAsPerceivedByOldView)	Of widthOfNewViewAsPerceivedByOldView and heightOfNewViewAsPerceivedByOldView, this method will choose the one producing the least zoom.
void	zoom(org.locationtech.jts.geom.Envelope modelEnvelope)
void	zoomToFullExtent()
void	zoomToViewPoint(Point2D centreOfNewViewAsPerceivedByOldView, double zoomFactor)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Viewport

public Viewport(LayerViewPanel panel)

Method Detail

getPanel

public LayerViewPanel getPanel()

addListener

public void addListener(ViewportListener l)

removeListener

public void removeListener(ViewportListener l)

getJava2DConverter

public Java2DConverter getJava2DConverter()

getZoomHistory

public ZoomHistory getZoomHistory()

update

public void update()
            throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException

modelToViewTransform

public static AffineTransform modelToViewTransform(double scale,
                                                   Point2D viewOriginAsPerceivedByModel,
                                                   double panelHeight)

getScale

public double getScale()

initialize

public void initialize(double newScale,
                       Point2D newViewOriginAsPerceivedByModel)

Set both values but repaint once.

getOriginInModelCoordinates

public Point2D getOriginInModelCoordinates()

zoom

public void zoom(Point2D centreOfNewViewAsPerceivedByOldView,
                 double widthOfNewViewAsPerceivedByOldView,
                 double heightOfNewViewAsPerceivedByOldView)
          throws NoninvertibleTransformException

Of widthOfNewViewAsPerceivedByOldView and heightOfNewViewAsPerceivedByOldView, this method will choose the one producing the least zoom.

Throws:

NoninvertibleTransformException

toModelPoint

public Point2D toModelPoint(Point2D viewPoint)
                     throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException

toModelCoordinate

public org.locationtech.jts.geom.Coordinate toModelCoordinate(Point2D viewPoint)
                                                       throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException

toViewPoint

public Point2D toViewPoint(Point2D modelPoint)
                    throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException

toViewPoint

public Point2D toViewPoint(org.locationtech.jts.geom.Coordinate modelCoordinate)
                    throws NoninvertibleTransformException

Specified by:

toViewPoint in interface Java2DConverter.PointConverter

Throws:

NoninvertibleTransformException

toModelEnvelope

public org.locationtech.jts.geom.Envelope toModelEnvelope(double x1,
                                                          double x2,
                                                          double y1,
                                                          double y2)
                                                   throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException

getModelToViewTransform

public AffineTransform getModelToViewTransform()
                                        throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException

getEnvelopeInModelCoordinates

public org.locationtech.jts.geom.Envelope getEnvelopeInModelCoordinates()

zoom

public void zoom(org.locationtech.jts.geom.Envelope modelEnvelope)
          throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException

zoomToFullExtent

public void zoomToFullExtent()
                      throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException

fullExtent

public org.locationtech.jts.geom.Envelope fullExtent()

zoomToViewPoint

public void zoomToViewPoint(Point2D centreOfNewViewAsPerceivedByOldView,
                            double zoomFactor)
                     throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException

toViewPoints

public Collection toViewPoints(Collection modelCoordinates)
                        throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException

toViewRectangle

public Rectangle2D toViewRectangle(org.locationtech.jts.geom.Envelope envelope)
                            throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException