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import java.awt.Color;
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import java.awt.Dimension;
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import java.awt.Toolkit;
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import java.awt.color.ColorSpace;
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import java.awt.geom.AffineTransform;
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import java.awt.geom.NoninvertibleTransformException;
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import java.awt.geom.Point2D;
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import java.awt.geom.Rectangle2D;
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import java.util.ArrayList;
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import java.util.Iterator;
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import org.cresques.cts.GeoCalc;
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import org.cresques.cts.IProjection;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.gvsig.tools.lang.Cloneable;
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/**
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* <p>
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* <code>ViewPort</code> class represents the logic needed to transform a
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*
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* @author Vicente Caballero Navarro
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*/
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public class ViewPort implements Persistent {
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private static final String FIELD_DISTANCE_AREA = "distanceArea";
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private static final String FIELD_IMAGE_SIZE = "imageSize";
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private static final String FIELD_PROJ = "proj";
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private static final String FIELD_OFFSET = "offset";
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private static final String FIELD_MAP_UNITS = "mapUnits";
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private static final String FIELD_EXTENT = "extent";
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private static final String FIELD_EXTENTS = "extents";
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private static final String FIELD_DISTANCE_UNITS = "distanceUnits";
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private static final String FIELD_DIST3PIXEL = "dist3pixel";
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private static final String FIELD_DIST1PIXEL = "dist1pixel";
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private static final String FIELD_CLIP = "clip";
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private static final String FIELD_BACK_COLOR = "backColor";
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private static final String FIELD_ADJUSTED_EXTENT = "adjustedExtent";
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public class ViewPort implements Persistent, Cloneable {
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private static final GeometryManager geomManager = GeometryLocator
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.getGeometryManager();
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private static final Logger logger = LoggerFactory.getLogger(ViewPort.class);
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private static final String FIELD_DISTANCE_AREA = "distanceArea";
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private static final String FIELD_IMAGE_SIZE = "imageSize";
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private static final String FIELD_PROJ = "proj";
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private static final String FIELD_OFFSET = "offset";
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private static final String FIELD_MAP_UNITS = "mapUnits";
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private static final String FIELD_EXTENT = "extent";
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private static final String FIELD_EXTENTS = "extents";
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private static final String FIELD_DISTANCE_UNITS = "distanceUnits";
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private static final String FIELD_DIST3PIXEL = "dist3pixel";
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private static final String FIELD_DIST1PIXEL = "dist1pixel";
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private static final String FIELD_CLIP = "clip";
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private static final String FIELD_BACK_COLOR = "backColor";
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private static final String FIELD_ADJUSTED_EXTENT = "adjustedExtent";
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/**
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* <p>
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* Screen resolution in <i>dots-per-inch</i>. Useful to calculate the
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* geographic scale of the view.
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* </p>
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*
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* @see Toolkit#getScreenResolution()
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* @see #getScale()
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*/
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private static int dpi = java.awt.Toolkit.getDefaultToolkit()
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.getScreenResolution();
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private static final GeometryManager geomManager =
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GeometryLocator.getGeometryManager();
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private static final Logger logger =
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LoggerFactory.getLogger(ViewPort.class);
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/**
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* <p>
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* Area selected by user using some tool.
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* </p>
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*
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* <p>
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* When the zoom changes (for instance when using the zoom in or zoom out
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* tools, but also zooming to a selected feature or shape) the extent that
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* covers that area is the value returned by this method. It is not the
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* actual area shown in the view because it does not care about the aspect
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* ratio of the available area. However, any part of the real world
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* contained in this extent is shown in the view.
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* </p>
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* <p>
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* Probably this is not what you are looking for. If you are looking for the
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* complete extent currently shown, you must use
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* {@linkplain #getAdjustedExtent()} method which returns the extent that
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* contains this one but regarding the current view's aspect ratio.
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* </p>
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*
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* @see #getExtent()
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* @see #setEnvelope(Envelope)
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*/
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protected Rectangle2D extent;
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/**
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* <p>
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* Screen resolution in <i>dots-per-inch</i>. Useful to calculate the
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* geographic scale of the view.
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* </p>
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*
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* @see Toolkit#getScreenResolution()
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* @see #getScale()
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*/
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private static int dpi = java.awt.Toolkit.getDefaultToolkit()
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.getScreenResolution();
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/**
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* <p>
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* Location and dimensions of the extent adjusted to the image size.
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* </p>
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*
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* @see #getAdjustedExtent()
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*/
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protected Rectangle2D adjustedExtent;
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/**
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* <p>
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* Area selected by user using some tool.
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* </p>
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*
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* <p>
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* When the zoom changes (for instance when using the zoom in or zoom out
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* tools, but also zooming to a selected feature or shape) the extent that
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* covers that area is the value returned by this method. It is not the
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* actual area shown in the view because it does not care about the aspect
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* ratio of the available area. However, any part of the real world
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* contained in this extent is shown in the view.
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* </p>
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* <p>
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* Probably this is not what you are looking for. If you are looking for the
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* complete extent currently shown, you must use
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* {@linkplain #getAdjustedExtent()} method which returns the extent that
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* contains this one but regarding the current view's aspect ratio.
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* </p>
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*
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* @see #getExtent()
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* @see #setEnvelope(Envelope)
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*/
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protected Rectangle2D extent;
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/**
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* Draw version of the context. It's used for know when de componend has
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* changed any visualization property
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*
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* @see getDrawVersion
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* @see updateDrawVersion
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*/
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private long drawVersion = 0L;
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/**
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* <p>
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* Location and dimensions of the extent adjusted to the image size.
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* </p>
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*
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* @see #getAdjustedExtent()
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*/
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protected Rectangle2D adjustedExtent;
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/**
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* <p>
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* History with the last extents of the view.
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* </p>
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*
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* @see #setPreviousExtent()
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* @see #getExtents()
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*/
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protected ExtentHistory extents = new ExtentHistory();
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/**
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* Draw version of the context. It's used for know when de componend has
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* changed any visualization property
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*
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* @see getDrawVersion
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* @see updateDrawVersion
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*/
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private long drawVersion = 0L;
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/**
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* <p>
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* Size in <i>screen coordinates</i> of the rectangle where the image is
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* displayed.
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* </p>
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* <p>
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* Used by {@linkplain #calculateAffineTransform()} to calculate:<br>
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*
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* <ul>
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* <li>The new {@link #scale scale} .
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* <li>The new {@link #adjustedExtent adjustableExtent} .
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* <li>The new {@link #trans trans} .
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* <li>The new real world coordinates equivalent to 1 pixel (
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* {@link #dist1pixel dist1pixel}) .
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218 |
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* <li>The new real world coordinates equivalent to 3 pixels (
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* {@link #dist3pixel dist3pixel}) .
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* </ul>
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* </p>
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*
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* @see #getImageSize()
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* @see #getImageHeight()
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* @see #getImageWidth()
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* @see #setImageSize(Dimension)
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*/
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private Dimension imageSize;
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/**
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* <p>
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* History with the last extents of the view.
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* </p>
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*
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* @see #setPreviousExtent()
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* @see #getExtents()
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207 |
*/
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protected ExtentHistory extents = new ExtentHistory();
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209 |
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|
/**
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231 |
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* <p>
|
232 |
|
* the affine transformation between the {@link #extent extent} in <i>map 2D
|
233 |
|
* coordinates</i> to the image area in the screen, in <i>screen 2D
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234 |
|
* coordinates</i> (pixels).
|
235 |
|
* </p>
|
236 |
|
*
|
237 |
|
* @see AffineTransform
|
238 |
|
*
|
239 |
|
* @see #getAffineTransform()
|
240 |
|
* @see #setAffineTransform(AffineTransform)
|
241 |
|
* @see #calculateAffineTransform()
|
242 |
|
*/
|
243 |
|
private AffineTransform trans = new AffineTransform();
|
|
210 |
/**
|
|
211 |
* <p>
|
|
212 |
* Size in <i>screen coordinates</i> of the rectangle where the image is
|
|
213 |
* displayed.
|
|
214 |
* </p>
|
|
215 |
* <p>
|
|
216 |
* Used by {@linkplain #calculateAffineTransform()} to calculate:<br>
|
|
217 |
*
|
|
218 |
* <ul>
|
|
219 |
* <li>The new {@link #scale scale} .
|
|
220 |
* <li>The new {@link #adjustedExtent adjustableExtent} .
|
|
221 |
* <li>The new {@link #trans trans} .
|
|
222 |
* <li>The new real world coordinates equivalent to 1 pixel (
|
|
223 |
* {@link #dist1pixel dist1pixel}) .
|
|
224 |
* <li>The new real world coordinates equivalent to 3 pixels (
|
|
225 |
* {@link #dist3pixel dist3pixel}) .
|
|
226 |
* </ul>
|
|
227 |
* </p>
|
|
228 |
*
|
|
229 |
* @see #getImageSize()
|
|
230 |
* @see #getImageHeight()
|
|
231 |
* @see #getImageWidth()
|
|
232 |
* @see #setImageSize(Dimension)
|
|
233 |
*/
|
|
234 |
private Dimension imageSize;
|
244 |
235 |
|
245 |
|
/**
|
246 |
|
* <p>
|
247 |
|
* Measurement unit used for measuring distances and displaying information.
|
248 |
|
* </p>
|
249 |
|
*
|
250 |
|
* @see #getDistanceUnits()
|
251 |
|
* @see #setDistanceUnits(int)
|
252 |
|
*/
|
253 |
|
private int distanceUnits = 1;
|
254 |
|
/**
|
255 |
|
* <p>
|
256 |
|
* Measurement unit used for measuring areas and displaying information.
|
257 |
|
* </p>
|
258 |
|
*
|
259 |
|
* @see #getDistanceArea()
|
260 |
|
* @see #setDistanceArea(int)
|
261 |
|
*/
|
262 |
|
private int distanceArea = 1;
|
263 |
|
/**
|
264 |
|
* <p>
|
265 |
|
* Measurement unit used by this view port for the map.
|
266 |
|
* </p>
|
267 |
|
*
|
268 |
|
* @see #getMapUnits()
|
269 |
|
* @see #setMapUnits(int)
|
270 |
|
*/
|
271 |
|
private int mapUnits = 1;
|
|
236 |
/**
|
|
237 |
* <p>
|
|
238 |
* the affine transformation between the {@link #extent extent} in <i>map 2D
|
|
239 |
* coordinates</i> to the image area in the screen, in <i>screen 2D
|
|
240 |
* coordinates</i> (pixels).
|
|
241 |
* </p>
|
|
242 |
*
|
|
243 |
* @see AffineTransform
|
|
244 |
*
|
|
245 |
* @see #getAffineTransform()
|
|
246 |
* @see #setAffineTransform(AffineTransform)
|
|
247 |
* @see #calculateAffineTransform()
|
|
248 |
*/
|
|
249 |
private AffineTransform trans = new AffineTransform();
|
272 |
250 |
|
273 |
|
/**
|
274 |
|
* <p>
|
275 |
|
* Array with the {@link ViewPortListener ViewPortListener}s registered to
|
276 |
|
* this view port.
|
277 |
|
* </p>
|
278 |
|
*
|
279 |
|
* @see #addViewPortListener(ViewPortListener)
|
280 |
|
* @see #removeViewPortListener(ViewPortListener)
|
281 |
|
*/
|
282 |
|
private ArrayList listeners = new ArrayList();
|
|
251 |
/**
|
|
252 |
* <p>
|
|
253 |
* Measurement unit used for measuring distances and displaying information.
|
|
254 |
* </p>
|
|
255 |
*
|
|
256 |
* @see #getDistanceUnits()
|
|
257 |
* @see #setDistanceUnits(int)
|
|
258 |
*/
|
|
259 |
private int distanceUnits = 1;
|
|
260 |
/**
|
|
261 |
* <p>
|
|
262 |
* Measurement unit used for measuring areas and displaying information.
|
|
263 |
* </p>
|
|
264 |
*
|
|
265 |
* @see #getDistanceArea()
|
|
266 |
* @see #setDistanceArea(int)
|
|
267 |
*/
|
|
268 |
private int distanceArea = 1;
|
|
269 |
/**
|
|
270 |
* <p>
|
|
271 |
* Measurement unit used by this view port for the map.
|
|
272 |
* </p>
|
|
273 |
*
|
|
274 |
* @see #getMapUnits()
|
|
275 |
* @see #setMapUnits(int)
|
|
276 |
*/
|
|
277 |
private int mapUnits = 1;
|
283 |
278 |
|
284 |
|
/**
|
285 |
|
* <p>
|
286 |
|
* The offset is the position where start drawing the map.
|
287 |
|
* </p>
|
288 |
|
* <p>
|
289 |
|
* The offset of a <a href="http://www.gvsig.gva.es/">gvSIG</a>'s
|
290 |
|
* <i>View</i> is always (0, 0) because the drawing area fits with the full
|
291 |
|
* window area. But in a <a href="http://www.gvsig.gva.es/">gvSIG</a>'s
|
292 |
|
* <i>Layout</i> it's up to the place where the <code>FFrameView</code> is
|
293 |
|
* located.
|
294 |
|
* </p>
|
295 |
|
*
|
296 |
|
* @see #getOffset()
|
297 |
|
* @see #setOffset(Point2D)
|
298 |
|
*/
|
299 |
|
private Point2D offset = new Point2D.Double(0, 0);
|
|
279 |
/**
|
|
280 |
* <p>
|
|
281 |
* Array with the {@link ViewPortListener ViewPortListener}s registered to
|
|
282 |
* this view port.
|
|
283 |
* </p>
|
|
284 |
*
|
|
285 |
* @see #addViewPortListener(ViewPortListener)
|
|
286 |
* @see #removeViewPortListener(ViewPortListener)
|
|
287 |
*/
|
|
288 |
private ArrayList listeners = new ArrayList();
|
300 |
289 |
|
301 |
|
/**
|
302 |
|
* <p>
|
303 |
|
* Clipping area.
|
304 |
|
* </p>
|
305 |
|
*/
|
306 |
|
// private Rectangle2D clip;
|
|
290 |
/**
|
|
291 |
* <p>
|
|
292 |
* The offset is the position where start drawing the map.
|
|
293 |
* </p>
|
|
294 |
* <p>
|
|
295 |
* The offset of a <a href="http://www.gvsig.gva.es/">gvSIG</a>'s
|
|
296 |
* <i>View</i> is always (0, 0) because the drawing area fits with the full
|
|
297 |
* window area. But in a <a href="http://www.gvsig.gva.es/">gvSIG</a>'s
|
|
298 |
* <i>Layout</i> it's up to the place where the <code>FFrameView</code> is
|
|
299 |
* located.
|
|
300 |
* </p>
|
|
301 |
*
|
|
302 |
* @see #getOffset()
|
|
303 |
* @see #setOffset(Point2D)
|
|
304 |
*/
|
|
305 |
private Point2D offset = new Point2D.Double(0, 0);
|
307 |
306 |
|
308 |
|
/**
|
309 |
|
* <p>
|
310 |
|
* Background color of this view.
|
311 |
|
* </p>
|
312 |
|
*
|
313 |
|
* @see #getBackColor()
|
314 |
|
* @see #setBackColor(Color)
|
315 |
|
*/
|
316 |
|
private Color backColor = null; // Color.WHITE;
|
|
307 |
/**
|
|
308 |
* <p>
|
|
309 |
* Clipping area.
|
|
310 |
* </p>
|
|
311 |
*/
|
|
312 |
// private Rectangle2D clip;
|
317 |
313 |
|
318 |
|
/**
|
319 |
|
* <p>
|
320 |
|
* Information about the map projection used in this view.
|
321 |
|
* </p>
|
322 |
|
*
|
323 |
|
* @see #getProjection()
|
324 |
|
* @see #setProjection(IProjection)
|
325 |
|
*/
|
326 |
|
private IProjection proj;
|
|
314 |
/**
|
|
315 |
* <p>
|
|
316 |
* Background color of this view.
|
|
317 |
* </p>
|
|
318 |
*
|
|
319 |
* @see #getBackColor()
|
|
320 |
* @see #setBackColor(Color)
|
|
321 |
*/
|
|
322 |
private Color backColor = null; // Color.WHITE;
|
327 |
323 |
|
328 |
|
/**
|
329 |
|
* <p>
|
330 |
|
* Represents the distance in <i>world coordinates</i> equivalent to 1 pixel
|
331 |
|
* in the view with the current extent.
|
332 |
|
* </p>
|
333 |
|
*
|
334 |
|
* @see #getDist1pixel()
|
335 |
|
* @see #setDist1pixel(double)
|
336 |
|
*/
|
337 |
|
private double dist1pixel;
|
|
324 |
/**
|
|
325 |
* <p>
|
|
326 |
* Information about the map projection used in this view.
|
|
327 |
* </p>
|
|
328 |
*
|
|
329 |
* @see #getProjection()
|
|
330 |
* @see #setProjection(IProjection)
|
|
331 |
*/
|
|
332 |
private IProjection proj;
|
338 |
333 |
|
339 |
|
/**
|
340 |
|
* <p>
|
341 |
|
* Represents the distance in <i>world coordinates</i> equivalent to 3
|
342 |
|
* pixels in the view with the current extent.
|
343 |
|
* </p>
|
344 |
|
*
|
345 |
|
* @see #getDist3pixel()
|
346 |
|
* @see #setDist3pixel(double)
|
347 |
|
*/
|
348 |
|
private double dist3pixel;
|
|
334 |
/**
|
|
335 |
* <p>
|
|
336 |
* Represents the distance in <i>world coordinates</i> equivalent to 1 pixel
|
|
337 |
* in the view with the current extent.
|
|
338 |
* </p>
|
|
339 |
*
|
|
340 |
* @see #getDist1pixel()
|
|
341 |
* @see #setDist1pixel(double)
|
|
342 |
*/
|
|
343 |
private double dist1pixel;
|
349 |
344 |
|
350 |
|
/**
|
351 |
|
* <p>
|
352 |
|
* Ratio between the size of <code>imageSize</code> and <code>extent</code>:
|
353 |
|
* <br>
|
354 |
|
* <i>
|
355 |
|
*
|
356 |
|
* <pre>
|
357 |
|
* min{(imageSize.getHeight()/extent.getHeight(), imageSize.getWidth()/extent.getWidth())}
|
358 |
|
* </pre>
|
359 |
|
*
|
360 |
|
* </i>
|
361 |
|
* </p>
|
362 |
|
*/
|
363 |
|
private double scale;
|
|
345 |
/**
|
|
346 |
* <p>
|
|
347 |
* Represents the distance in <i>world coordinates</i> equivalent to 3
|
|
348 |
* pixels in the view with the current extent.
|
|
349 |
* </p>
|
|
350 |
*
|
|
351 |
* @see #getDist3pixel()
|
|
352 |
* @see #setDist3pixel(double)
|
|
353 |
*/
|
|
354 |
private double dist3pixel;
|
364 |
355 |
|
365 |
|
/**
|
366 |
|
* <p>
|
367 |
|
* Clipping area.
|
368 |
|
* </p>
|
369 |
|
*
|
370 |
|
* @see #setClipRect(Rectangle2D)
|
371 |
|
*/
|
372 |
|
private Rectangle2D cliprect;
|
|
356 |
/**
|
|
357 |
* <p>
|
|
358 |
* Ratio between the size of <code>imageSize</code> and <code>extent</code>:
|
|
359 |
* <br>
|
|
360 |
* <i>
|
|
361 |
*
|
|
362 |
* <pre>
|
|
363 |
* min{(imageSize.getHeight()/extent.getHeight(), imageSize.getWidth()/extent.getWidth())}
|
|
364 |
* </pre>
|
|
365 |
*
|
|
366 |
* </i>
|
|
367 |
* </p>
|
|
368 |
*/
|
|
369 |
private double scale;
|
373 |
370 |
|
374 |
|
/**
|
375 |
|
* <p>
|
376 |
|
* Enables or disables the <i>"adjustable extent"</i> mode.
|
377 |
|
* </p>
|
378 |
|
*
|
379 |
|
* <p>
|
380 |
|
* When calculates the affine transform, if
|
381 |
|
* <ul>
|
382 |
|
* <li><i>enabled</i>: the new <code>adjustedExtent</code> will have the (X,
|
383 |
|
* Y) coordinates of the <code>extent</code> and an area that will be an
|
384 |
|
* scale of the image size. That area will have different height or width
|
385 |
|
* (not both) of the extent according the least ratio (height or width) in
|
386 |
|
*
|
387 |
|
* <pre>
|
388 |
|
* image.size/extent.size"
|
389 |
|
* </pre>.
|
390 |
|
* <li><i>disabled</i>: the new <code>adjustedExtent</code> will be like
|
391 |
|
* <code>extent</code>.
|
392 |
|
* </ul>
|
393 |
|
* </p>
|
394 |
|
*
|
395 |
|
* @see #setAdjustable(boolean)
|
396 |
|
*/
|
397 |
|
private boolean adjustableExtent = true;
|
|
371 |
/**
|
|
372 |
* <p>
|
|
373 |
* Clipping area.
|
|
374 |
* </p>
|
|
375 |
*
|
|
376 |
* @see #setClipRect(Rectangle2D)
|
|
377 |
*/
|
|
378 |
private Rectangle2D cliprect;
|
398 |
379 |
|
399 |
|
public ViewPort() {
|
400 |
|
|
401 |
|
}
|
402 |
|
/**
|
403 |
|
* <p>
|
404 |
|
* Creates a new view port with the information of the projection in
|
405 |
|
* <code>proj</code> argument, and default configuration:
|
406 |
|
* </p>
|
407 |
|
* <p>
|
408 |
|
* <ul>
|
409 |
|
* <li><i><code>distanceUnits</code></i> = meters
|
410 |
|
* <li><i><code>mapUnits</code></i> = meters
|
411 |
|
* <li><i><code>backColor</code></i> = <i>undefined</i>
|
412 |
|
* <li><i><code>offset</code></i> = <code>new Point2D.Double(0, 0);</code>
|
413 |
|
* </ul>
|
414 |
|
* </p>
|
415 |
|
*
|
416 |
|
* @param proj
|
417 |
|
* information of the projection for this view port
|
418 |
|
*/
|
419 |
|
public ViewPort(IProjection proj) {
|
420 |
|
// Por defecto
|
421 |
|
this.proj = proj;
|
422 |
|
}
|
|
380 |
/**
|
|
381 |
* <p>
|
|
382 |
* Enables or disables the <i>"adjustable extent"</i> mode.
|
|
383 |
* </p>
|
|
384 |
*
|
|
385 |
* <p>
|
|
386 |
* When calculates the affine transform, if
|
|
387 |
* <ul>
|
|
388 |
* <li><i>enabled</i>: the new <code>adjustedExtent</code> will have the (X,
|
|
389 |
* Y) coordinates of the <code>extent</code> and an area that will be an
|
|
390 |
* scale of the image size. That area will have different height or width
|
|
391 |
* (not both) of the extent according the least ratio (height or width) in
|
|
392 |
*
|
|
393 |
* <pre>
|
|
394 |
* image.size/extent.size"
|
|
395 |
* </pre>.
|
|
396 |
* <li><i>disabled</i>: the new <code>adjustedExtent</code> will be like
|
|
397 |
* <code>extent</code>.
|
|
398 |
* </ul>
|
|
399 |
* </p>
|
|
400 |
*
|
|
401 |
* @see #setAdjustable(boolean)
|
|
402 |
*/
|
|
403 |
private boolean adjustableExtent = true;
|
423 |
404 |
|
424 |
|
/**
|
425 |
|
* <p>
|
426 |
|
* Changes the status of the <i>"adjustable extent"</i> option to enabled or
|
427 |
|
* disabled.
|
428 |
|
* </p>
|
429 |
|
*
|
430 |
|
* <p>
|
431 |
|
* If view port isn't adjustable, won't bear in mind the aspect ratio of the
|
432 |
|
* available rectangular area to calculate the affine transform from the
|
433 |
|
* original map in real coordinates. (Won't scale the image to adapt it to
|
434 |
|
* the available rectangular area).
|
435 |
|
* </p>
|
436 |
|
*
|
437 |
|
* @param boolean the boolean to be set
|
438 |
|
*/
|
439 |
|
public void setAdjustable(boolean adjustable) {
|
440 |
|
if (adjustable == adjustableExtent) {
|
441 |
|
return;
|
442 |
|
}
|
443 |
|
adjustableExtent = adjustable;
|
444 |
|
this.updateDrawVersion();
|
445 |
|
}
|
|
405 |
public ViewPort() {
|
446 |
406 |
|
447 |
|
/**
|
448 |
|
* <p>
|
449 |
|
* Appends the specified {@link ViewPortListener ViewPortListener} listener
|
450 |
|
* if weren't.
|
451 |
|
* </p>
|
452 |
|
*
|
453 |
|
* @param arg0
|
454 |
|
* the listener to add
|
455 |
|
*
|
456 |
|
* @return <code>true</code> if has been added successfully
|
457 |
|
*
|
458 |
|
* @see #removeViewPortListener(ViewPortListener)
|
459 |
|
*/
|
460 |
|
public boolean addViewPortListener(ViewPortListener arg0) {
|
461 |
|
if (!listeners.contains(arg0)) {
|
462 |
|
return listeners.add(arg0);
|
463 |
|
}
|
464 |
|
return false;
|
465 |
|
}
|
|
407 |
}
|
466 |
408 |
|
467 |
|
/**
|
468 |
|
* <p>
|
469 |
|
* Removes the specified {@link ViewPortListener ViewPortListener} listener,
|
470 |
|
* if existed.
|
471 |
|
* </p>
|
472 |
|
*
|
473 |
|
* @param arg0
|
474 |
|
* the listener to remove
|
475 |
|
*
|
476 |
|
* @return <code>true</code> if the contained the specified listener.
|
477 |
|
*
|
478 |
|
* @see #addViewPortListener(ViewPortListener)
|
479 |
|
*/
|
480 |
|
public boolean removeViewPortListener(ViewPortListener arg0) {
|
481 |
|
return listeners.remove(arg0);
|
482 |
|
}
|
|
409 |
/**
|
|
410 |
* <p>
|
|
411 |
* Creates a new view port with the information of the projection in
|
|
412 |
* <code>proj</code> argument, and default configuration:
|
|
413 |
* </p>
|
|
414 |
* <p>
|
|
415 |
* <ul>
|
|
416 |
* <li><i><code>distanceUnits</code></i> = meters
|
|
417 |
* <li><i><code>mapUnits</code></i> = meters
|
|
418 |
* <li><i><code>backColor</code></i> = <i>undefined</i>
|
|
419 |
* <li><i><code>offset</code></i> = <code>new Point2D.Double(0, 0);</code>
|
|
420 |
* </ul>
|
|
421 |
* </p>
|
|
422 |
*
|
|
423 |
* @param proj
|
|
424 |
* information of the projection for this view port
|
|
425 |
*/
|
|
426 |
public ViewPort(IProjection proj) {
|
|
427 |
// Por defecto
|
|
428 |
this.proj = proj;
|
|
429 |
}
|
483 |
430 |
|
484 |
|
/**
|
485 |
|
* <p>
|
486 |
|
* Converts and returns the distance <code>d</code>, that is in <i>map
|
487 |
|
* coordinates</i> to <i>screen coordinates</i> using a <i>delta
|
488 |
|
* transform</i> with the transformation affine information in the
|
489 |
|
* {@link #trans #trans} attribute.
|
490 |
|
* </p>
|
491 |
|
*
|
492 |
|
* @param d
|
493 |
|
* distance in <i>map coordinates</i>
|
494 |
|
*
|
495 |
|
* @return distance equivalent in <i>screen coordinates</i>
|
496 |
|
*
|
497 |
|
* @see #toMapDistance(int)
|
498 |
|
* @see AffineTransform#deltaTransform(Point2D, Point2D)S
|
499 |
|
*/
|
500 |
|
public int fromMapDistance(double d) {
|
501 |
|
Point2D.Double pWorld = new Point2D.Double(1, 1);
|
502 |
|
Point2D.Double pScreen = new Point2D.Double();
|
|
431 |
/**
|
|
432 |
* <p>
|
|
433 |
* Changes the status of the <i>"adjustable extent"</i> option to enabled or
|
|
434 |
* disabled.
|
|
435 |
* </p>
|
|
436 |
*
|
|
437 |
* <p>
|
|
438 |
* If view port isn't adjustable, won't bear in mind the aspect ratio of the
|
|
439 |
* available rectangular area to calculate the affine transform from the
|
|
440 |
* original map in real coordinates. (Won't scale the image to adapt it to
|
|
441 |
* the available rectangular area).
|
|
442 |
* </p>
|
|
443 |
*
|
|
444 |
* @param boolean the boolean to be set
|
|
445 |
*/
|
|
446 |
public void setAdjustable(boolean adjustable) {
|
|
447 |
if (adjustable == adjustableExtent) {
|
|
448 |
return;
|
|
449 |
}
|
|
450 |
adjustableExtent = adjustable;
|
|
451 |
this.updateDrawVersion();
|
|
452 |
}
|
503 |
453 |
|
504 |
|
try {
|
505 |
|
trans.deltaTransform(pWorld, pScreen);
|
506 |
|
} catch (Exception e) {
|
507 |
|
System.err.print(e.getMessage());
|
508 |
|
}
|
|
454 |
/**
|
|
455 |
* <p>
|
|
456 |
* Appends the specified {@link ViewPortListener ViewPortListener} listener
|
|
457 |
* if weren't.
|
|
458 |
* </p>
|
|
459 |
*
|
|
460 |
* @param arg0
|
|
461 |
* the listener to add
|
|
462 |
*
|
|
463 |
* @return <code>true</code> if has been added successfully
|
|
464 |
*
|
|
465 |
* @see #removeViewPortListener(ViewPortListener)
|
|
466 |
*/
|
|
467 |
public boolean addViewPortListener(ViewPortListener arg0) {
|
|
468 |
if (!listeners.contains(arg0)) {
|
|
469 |
return listeners.add(arg0);
|
|
470 |
}
|
|
471 |
return false;
|
|
472 |
}
|
509 |
473 |
|
510 |
|
return (int) (d * pScreen.x);
|
511 |
|
}
|
|
474 |
/**
|
|
475 |
* <p>
|
|
476 |
* Removes the specified {@link ViewPortListener ViewPortListener} listener,
|
|
477 |
* if existed.
|
|
478 |
* </p>
|
|
479 |
*
|
|
480 |
* @param arg0
|
|
481 |
* the listener to remove
|
|
482 |
*
|
|
483 |
* @return <code>true</code> if the contained the specified listener.
|
|
484 |
*
|
|
485 |
* @see #addViewPortListener(ViewPortListener)
|
|
486 |
*/
|
|
487 |
public boolean removeViewPortListener(ViewPortListener arg0) {
|
|
488 |
return listeners.remove(arg0);
|
|
489 |
}
|
512 |
490 |
|
513 |
|
/**
|
514 |
|
* <p>
|
515 |
|
* Converts and returns the 2D point <code>(x,y)</code>, that is in <i>map
|
516 |
|
* coordinates</i> to <i>screen coordinates</i> (pixels) using the affine
|
517 |
|
* transformation in the {@link #trans #trans} attribute.
|
518 |
|
* </p>
|
519 |
|
*
|
520 |
|
* @param x
|
521 |
|
* the <code>x</code> <i>map coordinate</i> of a 2D point
|
522 |
|
* @param y
|
523 |
|
* the <code>y</code> <i>map coordinate</i> of a 2D point
|
524 |
|
*
|
525 |
|
* @return 2D point equivalent in <i>screen coordinates</i> (pixels)
|
526 |
|
*
|
527 |
|
* @see #fromMapPoint(Point2D)
|
528 |
|
* @see AffineTransform#transform(Point2D, Point2D)
|
529 |
|
*/
|
530 |
|
public Point2D fromMapPoint(double x, double y) {
|
531 |
|
Point2D.Double pWorld = new Point2D.Double(x, y);
|
532 |
|
Point2D.Double pScreen = new Point2D.Double();
|
|
491 |
/**
|
|
492 |
* <p>
|
|
493 |
* Converts and returns the distance <code>d</code>, that is in <i>map
|
|
494 |
* coordinates</i> to <i>screen coordinates</i> using a <i>delta
|
|
495 |
* transform</i> with the transformation affine information in the
|
|
496 |
* {@link #trans #trans} attribute.
|
|
497 |
* </p>
|
|
498 |
*
|
|
499 |
* @param d
|
|
500 |
* distance in <i>map coordinates</i>
|
|
501 |
*
|
|
502 |
* @return distance equivalent in <i>screen coordinates</i>
|
|
503 |
*
|
|
504 |
* @see #toMapDistance(int)
|
|
505 |
* @see AffineTransform#deltaTransform(Point2D, Point2D)S
|
|
506 |
*/
|
|
507 |
public int fromMapDistance(double d) {
|
|
508 |
Point2D.Double pWorld = new Point2D.Double(1, 1);
|
|
509 |
Point2D.Double pScreen = new Point2D.Double();
|
533 |
510 |
|
534 |
|
try {
|
535 |
|
trans.transform(pWorld, pScreen);
|
536 |
|
} catch (Exception e) {
|
537 |
|
System.err.print(e.getMessage());
|
538 |
|
}
|
|
511 |
try {
|
|
512 |
trans.deltaTransform(pWorld, pScreen);
|
|
513 |
} catch (Exception e) {
|
|
514 |
System.err.print(e.getMessage());
|
|
515 |
}
|
539 |
516 |
|
540 |
|
return pScreen;
|
541 |
|
}
|
|
517 |
return (int) (d * pScreen.x);
|
|
518 |
}
|
542 |
519 |
|
543 |
|
/**
|
544 |
|
* <p>
|
545 |
|
* Converts and returns the 2D point argument, that is in <i>map
|
546 |
|
* coordinates</i> to <i>screen coordinates</i> (pixels) using the affine
|
547 |
|
* transformation in the {@link #trans #trans} attribute.
|
548 |
|
* </p>
|
549 |
|
*
|
550 |
|
* @param point
|
551 |
|
* the 2D point in <i>map coordinates</i>
|
552 |
|
*
|
553 |
|
* @return 2D point equivalent in <i>screen coordinates</i> (pixels)
|
554 |
|
*
|
555 |
|
* @see #toMapPoint(Point2D)
|
556 |
|
* @see #fromMapPoint(double, double)
|
557 |
|
*/
|
558 |
|
public Point2D fromMapPoint(Point2D point) {
|
559 |
|
return fromMapPoint(point.getX(), point.getY());
|
560 |
|
}
|
|
520 |
/**
|
|
521 |
* <p>
|
|
522 |
* Converts and returns the 2D point <code>(x,y)</code>, that is in <i>map
|
|
523 |
* coordinates</i> to <i>screen coordinates</i> (pixels) using the affine
|
|
524 |
* transformation in the {@link #trans #trans} attribute.
|
|
525 |
* </p>
|
|
526 |
*
|
|
527 |
* @param x
|
|
528 |
* the <code>x</code> <i>map coordinate</i> of a 2D point
|
|
529 |
* @param y
|
|
530 |
* the <code>y</code> <i>map coordinate</i> of a 2D point
|
|
531 |
*
|
|
532 |
* @return 2D point equivalent in <i>screen coordinates</i> (pixels)
|
|
533 |
*
|
|
534 |
* @see #fromMapPoint(Point2D)
|
|
535 |
* @see AffineTransform#transform(Point2D, Point2D)
|
|
536 |
*/
|
|
537 |
public Point2D fromMapPoint(double x, double y) {
|
|
538 |
Point2D.Double pWorld = new Point2D.Double(x, y);
|
|
539 |
Point2D.Double pScreen = new Point2D.Double();
|
561 |
540 |
|
562 |
|
/**
|
563 |
|
* <p>
|
564 |
|
* Converts and returns the 2D point <code>(x,y)</code>, that is in
|
565 |
|
* <i>screen coordinates</i> (pixels) to <i>map coordinates</i> using the
|
566 |
|
* affine transformation in the {@link #trans #trans} attribute.
|
567 |
|
* </p>
|
568 |
|
*
|
569 |
|
* @param x
|
570 |
|
* the <code>x</code> <i>screen coordinate</i> of a 2D point
|
571 |
|
* @param y
|
572 |
|
* the <code>y</code> <i>screen coordinate</i> of a 2D point
|
573 |
|
*
|
574 |
|
* @return 2D point equivalent in <i>map coordinates</i>
|
575 |
|
*
|
576 |
|
* @see #toMapPoint(Point2D)
|
577 |
|
* @see #fromMapPoint(double, double)
|
578 |
|
*/
|
579 |
|
public Point2D toMapPoint(int x, int y) {
|
580 |
|
Point2D pScreen = new Point2D.Double(x, y);
|
|
541 |
try {
|
|
542 |
trans.transform(pWorld, pScreen);
|
|
543 |
} catch (Exception e) {
|
|
544 |
System.err.print(e.getMessage());
|
|
545 |
}
|
581 |
546 |
|
582 |
|
return toMapPoint(pScreen);
|
583 |
|
}
|
|
547 |
return pScreen;
|
|
548 |
}
|
584 |
549 |
|
585 |
|
/**
|
586 |
|
* <p>
|
587 |
|
* Converts and returns the {@link Rectangle2D Rectangle2D}, that is in
|
588 |
|
* <i>screen coordinates</i> (pixels) to <i>map coordinates</i> using
|
589 |
|
* {@linkplain #toMapDistance(int)}, and {@linkplain #toMapPoint(int, int)}.
|
590 |
|
* </p>
|
591 |
|
*
|
592 |
|
* @param r
|
593 |
|
* the 2D rectangle in <i>screen coordinates</i> (pixels)
|
594 |
|
* @return 2D rectangle equivalent in <i>map coordinates</i>
|
595 |
|
*
|
596 |
|
* @see #fromMapRectangle(Rectangle2D)
|
597 |
|
* @see #toMapDistance(int)
|
598 |
|
* @see #toMapPoint(int, int)
|
599 |
|
*/
|
600 |
|
public Rectangle2D toMapRectangle(Rectangle2D r) {
|
601 |
|
Rectangle2D rect = new Rectangle2D.Double();
|
602 |
|
Point2D p1 = toMapPoint((int) r.getX(), (int) r.getY());
|
603 |
|
Point2D p2 = toMapPoint((int) r.getMaxX(), (int) r.getMaxY());
|
604 |
|
rect.setFrameFromDiagonal(p1, p2);
|
605 |
|
return rect;
|
606 |
|
}
|
|
550 |
/**
|
|
551 |
* <p>
|
|
552 |
* Converts and returns the 2D point argument, that is in <i>map
|
|
553 |
* coordinates</i> to <i>screen coordinates</i> (pixels) using the affine
|
|
554 |
* transformation in the {@link #trans #trans} attribute.
|
|
555 |
* </p>
|
|
556 |
*
|
|
557 |
* @param point
|
|
558 |
* the 2D point in <i>map coordinates</i>
|
|
559 |
*
|
|
560 |
* @return 2D point equivalent in <i>screen coordinates</i> (pixels)
|
|
561 |
*
|
|
562 |
* @see #toMapPoint(Point2D)
|
|
563 |
* @see #fromMapPoint(double, double)
|
|
564 |
*/
|
|
565 |
public Point2D fromMapPoint(Point2D point) {
|
|
566 |
return fromMapPoint(point.getX(), point.getY());
|
|
567 |
}
|
607 |
568 |
|
608 |
|
/**
|
609 |
|
* <p>
|
610 |
|
* Converts and returns the distance <code>d</code>, that is in <i>screen
|
611 |
|
* coordinates</i> to <i>map coordinates</i> using the transformation affine
|
612 |
|
* information in the {@link #trans #trans} attribute.
|
613 |
|
* </p>
|
614 |
|
*
|
615 |
|
* @param d
|
616 |
|
* distance in pixels
|
617 |
|
*
|
618 |
|
* @return distance equivalent in <i>map coordinates</i>
|
619 |
|
*
|
620 |
|
* @see #fromMapDistance(double)
|
621 |
|
* @see AffineTransform
|
622 |
|
*/
|
623 |
|
public double toMapDistance(int d) {
|
624 |
|
double dist = d / trans.getScaleX();
|
|
569 |
/**
|
|
570 |
* <p>
|
|
571 |
* Converts and returns the 2D point <code>(x,y)</code>, that is in
|
|
572 |
* <i>screen coordinates</i> (pixels) to <i>map coordinates</i> using the
|
|
573 |
* affine transformation in the {@link #trans #trans} attribute.
|
|
574 |
* </p>
|
|
575 |
*
|
|
576 |
* @param x
|
|
577 |
* the <code>x</code> <i>screen coordinate</i> of a 2D point
|
|
578 |
* @param y
|
|
579 |
* the <code>y</code> <i>screen coordinate</i> of a 2D point
|
|
580 |
*
|
|
581 |
* @return 2D point equivalent in <i>map coordinates</i>
|
|
582 |
*
|
|
583 |
* @see #toMapPoint(Point2D)
|
|
584 |
* @see #fromMapPoint(double, double)
|
|
585 |
*/
|
|
586 |
public Point2D toMapPoint(int x, int y) {
|
|
587 |
Point2D pScreen = new Point2D.Double(x, y);
|
625 |
588 |
|
626 |
|
return dist;
|
627 |
|
}
|
|
589 |
return toMapPoint(pScreen);
|
|
590 |
}
|
628 |
591 |
|
629 |
|
/**
|
630 |
|
* <p>
|
631 |
|
* Converts and returns the 2D point argument, that is in <i>screen
|
632 |
|
* coordinates</i> (pixels) to <i>map coordinates</i> using the inverse
|
633 |
|
* affine transformation of the {@link #trans #trans} attribute.
|
634 |
|
* </p>
|
635 |
|
*
|
636 |
|
* @param pScreen
|
637 |
|
* the 2D point in <i>screen coordinates</i> (pixels)
|
638 |
|
*
|
639 |
|
* @return 2D point equivalent in <i>map coordinates</i>
|
640 |
|
*
|
641 |
|
* @see #toMapPoint(int, int)
|
642 |
|
* @see AffineTransform#createInverse()
|
643 |
|
* @see AffineTransform#transform(Point2D, Point2D)
|
644 |
|
*/
|
645 |
|
public Point2D toMapPoint(Point2D pScreen) {
|
646 |
|
Point2D.Double pWorld = new Point2D.Double();
|
647 |
|
AffineTransform at;
|
|
592 |
/**
|
|
593 |
* <p>
|
|
594 |
* Converts and returns the {@link Rectangle2D Rectangle2D}, that is in
|
|
595 |
* <i>screen coordinates</i> (pixels) to <i>map coordinates</i> using
|
|
596 |
* {@linkplain #toMapDistance(int)}, and {@linkplain #toMapPoint(int, int)}.
|
|
597 |
* </p>
|
|
598 |
*
|
|
599 |
* @param r
|
|
600 |
* the 2D rectangle in <i>screen coordinates</i> (pixels)
|
|
601 |
* @return 2D rectangle equivalent in <i>map coordinates</i>
|
|
602 |
*
|
|
603 |
* @see #fromMapRectangle(Rectangle2D)
|
|
604 |
* @see #toMapDistance(int)
|
|
605 |
* @see #toMapPoint(int, int)
|
|
606 |
*/
|
|
607 |
public Rectangle2D toMapRectangle(Rectangle2D r) {
|
|
608 |
Rectangle2D rect = new Rectangle2D.Double();
|
|
609 |
Point2D p1 = toMapPoint((int) r.getX(), (int) r.getY());
|
|
610 |
Point2D p2 = toMapPoint((int) r.getMaxX(), (int) r.getMaxY());
|
|
611 |
rect.setFrameFromDiagonal(p1, p2);
|
|
612 |
return rect;
|
|
613 |
}
|
648 |
614 |
|
649 |
|
try {
|
650 |
|
at = trans.createInverse();
|
651 |
|
at.transform(pScreen, pWorld);
|
652 |
|
} catch (NoninvertibleTransformException e) {
|
653 |
|
throw new RuntimeException("Non invertible transform Exception", e);
|
654 |
|
}
|
|
615 |
/**
|
|
616 |
* <p>
|
|
617 |
* Converts and returns the distance <code>d</code>, that is in <i>screen
|
|
618 |
* coordinates</i> to <i>map coordinates</i> using the transformation affine
|
|
619 |
* information in the {@link #trans #trans} attribute.
|
|
620 |
* </p>
|
|
621 |
*
|
|
622 |
* @param d
|
|
623 |
* distance in pixels
|
|
624 |
*
|
|
625 |
* @return distance equivalent in <i>map coordinates</i>
|
|
626 |
*
|
|
627 |
* @see #fromMapDistance(double)
|
|
628 |
* @see AffineTransform
|
|
629 |
*/
|
|
630 |
public double toMapDistance(int d) {
|
|
631 |
double dist = d / trans.getScaleX();
|
655 |
632 |
|
656 |
|
return pWorld;
|
657 |
|
}
|
|
633 |
return dist;
|
|
634 |
}
|
658 |
635 |
|
659 |
|
/**
|
660 |
|
* <p>
|
661 |
|
* Returns the real distance (in <i>world coordinates</i>) at the graphic
|
662 |
|
* layers of two 2D points (in <i>map coordinates</i>) of the plane where is
|
663 |
|
* selected the <i>extent</i>.
|
664 |
|
* </p>
|
665 |
|
* <p>
|
666 |
|
* If the projection of this view is UTM, considers the Earth curvature.
|
667 |
|
* </p>
|
668 |
|
*
|
669 |
|
* @param pt1
|
670 |
|
* a 2D point in <i>map coordinates</i>
|
671 |
|
* @param pt2
|
672 |
|
* another 2D point in <i>map coordinates</i>
|
673 |
|
*
|
674 |
|
* @return the distance in meters between the two points 2D
|
675 |
|
*
|
676 |
|
* @see GeoCalcImpl#distanceVincenty(Point2D, Point2D)
|
677 |
|
*/
|
678 |
|
public double distanceWorld(Point2D pt1, Point2D pt2) {
|
679 |
|
double dist = -1;
|
680 |
|
dist = pt1.distance(pt2);
|
|
636 |
/**
|
|
637 |
* <p>
|
|
638 |
* Converts and returns the 2D point argument, that is in <i>screen
|
|
639 |
* coordinates</i> (pixels) to <i>map coordinates</i> using the inverse
|
|
640 |
* affine transformation of the {@link #trans #trans} attribute.
|
|
641 |
* </p>
|
|
642 |
*
|
|
643 |
* @param pScreen
|
|
644 |
* the 2D point in <i>screen coordinates</i> (pixels)
|
|
645 |
*
|
|
646 |
* @return 2D point equivalent in <i>map coordinates</i>
|
|
647 |
*
|
|
648 |
* @see #toMapPoint(int, int)
|
|
649 |
* @see AffineTransform#createInverse()
|
|
650 |
* @see AffineTransform#transform(Point2D, Point2D)
|
|
651 |
*/
|
|
652 |
public Point2D toMapPoint(Point2D pScreen) {
|
|
653 |
Point2D.Double pWorld = new Point2D.Double();
|
|
654 |
AffineTransform at;
|
681 |
655 |
|
682 |
|
if ((proj != null) && !(proj instanceof UTM)) {
|
683 |
|
dist = new GeoCalc(proj).distanceVincenty(proj.toGeo(pt1), proj
|
684 |
|
.toGeo(pt2));
|
685 |
|
return dist;
|
686 |
|
}
|
687 |
|
return (dist * MapContext.getDistanceTrans2Meter()[getMapUnits()]);
|
688 |
|
}
|
|
656 |
try {
|
|
657 |
at = trans.createInverse();
|
|
658 |
at.transform(pScreen, pWorld);
|
|
659 |
} catch (NoninvertibleTransformException e) {
|
|
660 |
throw new RuntimeException("Non invertible transform Exception", e);
|
|
661 |
}
|
689 |
662 |
|
690 |
|
/**
|
691 |
|
* <p>
|
692 |
|
* Sets as extent and adjusted extent of this view port, the previous.
|
693 |
|
* Recalculating its parameters.
|
694 |
|
* </p>
|
695 |
|
*
|
696 |
|
* @see #getExtents()
|
697 |
|
* @see #calculateAffineTransform()
|
698 |
|
* @deprecated use {@link ViewPort#setPreviousEnvelope()}
|
699 |
|
*/
|
700 |
|
public void setPreviousExtent() {
|
701 |
|
setPreviousEnvelope();
|
702 |
|
}
|
|
663 |
return pWorld;
|
|
664 |
}
|
703 |
665 |
|
704 |
|
/**
|
705 |
|
* <p>
|
706 |
|
* Sets as envelope and adjusted envelope of this view port, the previous.
|
707 |
|
* Recalculating its parameters.
|
708 |
|
* </p>
|
709 |
|
*
|
710 |
|
* @see #getExtents()
|
711 |
|
* @see #calculateAffineTransform()
|
712 |
|
*/
|
713 |
|
public void setPreviousEnvelope() {
|
714 |
|
this.updateDrawVersion();
|
715 |
|
extent = extents.removePrev();
|
|
666 |
/**
|
|
667 |
* <p>
|
|
668 |
* Returns the real distance (in <i>world coordinates</i>) at the graphic
|
|
669 |
* layers of two 2D points (in <i>map coordinates</i>) of the plane where is
|
|
670 |
* selected the <i>extent</i>.
|
|
671 |
* </p>
|
|
672 |
* <p>
|
|
673 |
* If the projection of this view is UTM, considers the Earth curvature.
|
|
674 |
* </p>
|
|
675 |
*
|
|
676 |
* @param pt1
|
|
677 |
* a 2D point in <i>map coordinates</i>
|
|
678 |
* @param pt2
|
|
679 |
* another 2D point in <i>map coordinates</i>
|
|
680 |
*
|
|
681 |
* @return the distance in meters between the two points 2D
|
|
682 |
*
|
|
683 |
* @see GeoCalcImpl#distanceVincenty(Point2D, Point2D)
|
|
684 |
*/
|
|
685 |
public double distanceWorld(Point2D pt1, Point2D pt2) {
|
|
686 |
double dist = -1;
|
|
687 |
dist = pt1.distance(pt2);
|
716 |
688 |
|
717 |
|
// Calcula la transformaci�n af�n
|
718 |
|
calculateAffineTransform();
|
|
689 |
if ((proj != null) && !(proj instanceof UTM)) {
|
|
690 |
dist =
|
|
691 |
new GeoCalc(proj).distanceVincenty(proj.toGeo(pt1),
|
|
692 |
proj.toGeo(pt2));
|
|
693 |
return dist;
|
|
694 |
}
|
|
695 |
return (dist * MapContext.getDistanceTrans2Meter()[getMapUnits()]);
|
|
696 |
}
|
719 |
697 |
|
720 |
|
// Lanzamos los eventos de extent cambiado
|
721 |
|
callExtentChanged(getAdjustedExtent());
|
722 |
|
}
|
|
698 |
/**
|
|
699 |
* <p>
|
|
700 |
* Sets as extent and adjusted extent of this view port, the previous.
|
|
701 |
* Recalculating its parameters.
|
|
702 |
* </p>
|
|
703 |
*
|
|
704 |
* @see #getExtents()
|
|
705 |
* @see #calculateAffineTransform()
|
|
706 |
* @deprecated use {@link ViewPort#setPreviousEnvelope()}
|
|
707 |
*/
|
|
708 |
public void setPreviousExtent() {
|
|
709 |
setPreviousEnvelope();
|
|
710 |
}
|
723 |
711 |
|
724 |
|
/**
|
725 |
|
* <p>
|
726 |
|
* Gets the area selected by user using some tool.
|
727 |
|
* </p>
|
728 |
|
*
|
729 |
|
* <p>
|
730 |
|
* When the zoom changes (for instance using the <i>zoom in</i> or <i>zoom
|
731 |
|
* out</i> tools, but also zooming to a selected feature or shape) the
|
732 |
|
* extent that covers that area is the value returned by this method. It is
|
733 |
|
* not the actual area shown because it doesn't care about the aspect ratio
|
734 |
|
* of the image size of the view. However, any part of the real world
|
735 |
|
* contained in this extent is shown in the view.
|
736 |
|
* </p>
|
737 |
|
*
|
738 |
|
* <p>
|
739 |
|
* If you are looking for the complete extent currently shown, you must use
|
740 |
|
* the {@linkplain #getAdjustedExtent()} method.
|
741 |
|
* </p>
|
742 |
|
*
|
743 |
|
* @return the current extent
|
744 |
|
*
|
745 |
|
* @see #setEnvelope(Envelope)
|
746 |
|
* @see #getAdjustedExtent()
|
747 |
|
* @see #setPreviousExtent()
|
748 |
|
* @see #getExtents()
|
749 |
|
*
|
750 |
|
* @deprecated use {@link ViewPort#getEnvelope()}
|
751 |
|
*/
|
752 |
|
public Rectangle2D getExtent() {
|
753 |
|
return extent;
|
754 |
|
}
|
|
712 |
/**
|
|
713 |
* <p>
|
|
714 |
* Sets as envelope and adjusted envelope of this view port, the previous.
|
|
715 |
* Recalculating its parameters.
|
|
716 |
* </p>
|
|
717 |
*
|
|
718 |
* @see #getExtents()
|
|
719 |
* @see #calculateAffineTransform()
|
|
720 |
*/
|
|
721 |
public void setPreviousEnvelope() {
|
|
722 |
this.updateDrawVersion();
|
|
723 |
extent = extents.removePrev();
|
755 |
724 |
|
756 |
|
/**
|
757 |
|
* <p>
|
758 |
|
* Gets the envelope selected by user using some tool.
|
759 |
|
* </p>
|
760 |
|
*
|
761 |
|
* <p>
|
762 |
|
* When the zoom changes (for instance using the <i>zoom in</i> or <i>zoom
|
763 |
|
* out</i> tools, but also zooming to a selected feature or shape) the
|
764 |
|
* envelope that covers that area is the value returned by this method. It
|
765 |
|
* is not the actual envelope shown because it doesn't care about the aspect
|
766 |
|
* ratio of the image size of the view. However, any part of the real world
|
767 |
|
* contained in this envelope is shown in the view.
|
768 |
|
* </p>
|
769 |
|
*
|
770 |
|
* <p>
|
771 |
|
* If you are looking for the complete extent currently shown, you must use
|
772 |
|
* the {@linkplain #getAdjustedEnvelope()} method.
|
773 |
|
* </p>
|
774 |
|
*
|
775 |
|
* @return the current envelope
|
776 |
|
*
|
777 |
|
* @see #setEnvelope(Envelope)
|
778 |
|
* @see #getAdjustedEnvelope()
|
779 |
|
* @see #setPreviousEnvelope()
|
780 |
|
* @see #getEnvelopes()
|
781 |
|
*/
|
782 |
|
public Envelope getEnvelope() {
|
783 |
|
if( this.extent == null ) {
|
784 |
|
return null;
|
785 |
|
}
|
786 |
|
try {
|
787 |
|
return geomManager.createEnvelope(extent.getMinX(), extent
|
788 |
|
.getMinY(), extent.getMaxX(), extent.getMaxY(),
|
789 |
|
SUBTYPES.GEOM2D);
|
790 |
|
// This class has to use Envelope instead of Rectangle2D. This catch
|
791 |
|
// will disappear
|
792 |
|
} catch (CreateEnvelopeException e) {
|
793 |
|
logger.error("Error creating the envelope");
|
794 |
|
}
|
795 |
|
return null;
|
796 |
|
}
|
|
725 |
// Calcula la transformaci�n af�n
|
|
726 |
calculateAffineTransform();
|
797 |
727 |
|
798 |
|
/**
|
799 |
|
* <p>
|
800 |
|
* Changes the <i>extent</i> and <i>adjusted extent</i> of this view port:<br>
|
801 |
|
* <ul>
|
802 |
|
* <li>Stores the previous extent.
|
803 |
|
* <li>Calculates the new extent using <code>r</code>:
|
804 |
|
*
|
805 |
|
* <pre>
|
806 |
|
* extent = new Rectangle2D.Double(r.getMinX() - 0.1, r.getMinY() - 0.1, r
|
807 |
|
* .getWidth() + 0.2, r.getHeight() + 0.2);
|
808 |
|
* </pre>
|
809 |
|
*
|
810 |
|
* <li>Executes {@linkplain #calculateAffineTransform()}: getting the new
|
811 |
|
* scale, adjusted extent, affine transformation between map and screen
|
812 |
|
* coordinates, the real world coordinates equivalent to 1 pixel, and the
|
813 |
|
* real world coordinates equivalent to 3 pixels.
|
814 |
|
* <li>Notifies all {@link ViewPortListener ViewPortListener} registered
|
815 |
|
* that the extent has changed.
|
816 |
|
* </ul>
|
817 |
|
* </p>
|
818 |
|
*
|
819 |
|
* @param r
|
820 |
|
* the new extent
|
821 |
|
*
|
822 |
|
* @see #getExtent()
|
823 |
|
* @see #getExtents()
|
824 |
|
* @see #calculateAffineTransform()
|
825 |
|
* @see #setPreviousExtent()
|
826 |
|
*/
|
827 |
|
public void setEnvelope(Envelope r) {
|
828 |
|
Rectangle2D newExtent = null;
|
829 |
|
// Esto comprueba que el extent no es de anchura o altura = "0"
|
830 |
|
// y si es as� lo redimensiona.
|
831 |
|
if (r != null) {
|
832 |
|
if ((r.getMaximum(0) - r.getMinimum(0) == 0)
|
833 |
|
|| (r.getMaximum(1) - r.getMinimum(1) == 0)) {
|
834 |
|
newExtent = new Rectangle2D.Double(r.getMinimum(0) - 0.1, r
|
835 |
|
.getMinimum(1) - 0.1, r.getMaximum(0) - r.getMinimum(0)
|
836 |
|
+ 0.2, r.getMaximum(1) - r.getMinimum(1) + 0.2);
|
837 |
|
} else {
|
838 |
|
newExtent = new Rectangle2D.Double(r.getMinimum(0), r
|
839 |
|
.getMinimum(1), Math.abs(r.getMaximum(0)
|
840 |
|
- r.getMinimum(0)), Math.abs(r.getMaximum(1)
|
841 |
|
- r.getMinimum(1)));
|
842 |
|
}
|
843 |
|
}
|
|
728 |
// Lanzamos los eventos de extent cambiado
|
|
729 |
callExtentChanged(getAdjustedExtent());
|
|
730 |
}
|
844 |
731 |
|
845 |
|
if (this.extent != null && this.extent.equals(newExtent)) {
|
846 |
|
return;
|
847 |
|
}
|
848 |
|
if (extent != null) {
|
849 |
|
extents.put(extent);
|
850 |
|
}
|
851 |
|
this.updateDrawVersion();
|
852 |
|
this.extent = newExtent;
|
|
732 |
/**
|
|
733 |
* <p>
|
|
734 |
* Gets the area selected by user using some tool.
|
|
735 |
* </p>
|
|
736 |
*
|
|
737 |
* <p>
|
|
738 |
* When the zoom changes (for instance using the <i>zoom in</i> or <i>zoom
|
|
739 |
* out</i> tools, but also zooming to a selected feature or shape) the
|
|
740 |
* extent that covers that area is the value returned by this method. It is
|
|
741 |
* not the actual area shown because it doesn't care about the aspect ratio
|
|
742 |
* of the image size of the view. However, any part of the real world
|
|
743 |
* contained in this extent is shown in the view.
|
|
744 |
* </p>
|
|
745 |
*
|
|
746 |
* <p>
|
|
747 |
* If you are looking for the complete extent currently shown, you must use
|
|
748 |
* the {@linkplain #getAdjustedExtent()} method.
|
|
749 |
* </p>
|
|
750 |
*
|
|
751 |
* @return the current extent
|
|
752 |
*
|
|
753 |
* @see #setEnvelope(Envelope)
|
|
754 |
* @see #getAdjustedExtent()
|
|
755 |
* @see #setPreviousExtent()
|
|
756 |
* @see #getExtents()
|
|
757 |
*
|
|
758 |
* @deprecated use {@link ViewPort#getEnvelope()}
|
|
759 |
*/
|
|
760 |
public Rectangle2D getExtent() {
|
|
761 |
return extent;
|
|
762 |
}
|
853 |
763 |
|
854 |
|
// Calcula la transformaci�n af�n
|
855 |
|
calculateAffineTransform();
|
|
764 |
/**
|
|
765 |
* <p>
|
|
766 |
* Gets the envelope selected by user using some tool.
|
|
767 |
* </p>
|
|
768 |
*
|
|
769 |
* <p>
|
|
770 |
* When the zoom changes (for instance using the <i>zoom in</i> or <i>zoom
|
|
771 |
* out</i> tools, but also zooming to a selected feature or shape) the
|
|
772 |
* envelope that covers that area is the value returned by this method. It
|
|
773 |
* is not the actual envelope shown because it doesn't care about the aspect
|
|
774 |
* ratio of the image size of the view. However, any part of the real world
|
|
775 |
* contained in this envelope is shown in the view.
|
|
776 |
* </p>
|
|
777 |
*
|
|
778 |
* <p>
|