Revision 33613 branches/v2_0_0_prep/libraries/libFMap_mapcontext/src/org/gvsig/fmap/mapcontext/ViewPort.java
ViewPort.java | ||
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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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* <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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*/ |
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protected ExtentHistory extents = new ExtentHistory(); |
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/** |
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* <p> |
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* the affine transformation between the {@link #extent extent} in <i>map 2D |
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* coordinates</i> to the image area in the screen, in <i>screen 2D |
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* coordinates</i> (pixels). |
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* </p> |
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* |
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* @see AffineTransform |
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* |
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* @see #getAffineTransform() |
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* @see #setAffineTransform(AffineTransform) |
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* @see #calculateAffineTransform() |
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*/ |
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private AffineTransform trans = new AffineTransform(); |
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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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* <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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* Measurement unit used for measuring distances and displaying information. |
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* </p> |
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* |
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* @see #getDistanceUnits() |
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* @see #setDistanceUnits(int) |
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*/ |
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private int distanceUnits = 1; |
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/** |
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* <p> |
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* Measurement unit used for measuring areas and displaying information. |
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* </p> |
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* |
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* @see #getDistanceArea() |
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* @see #setDistanceArea(int) |
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*/ |
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private int distanceArea = 1; |
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/** |
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* <p> |
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* Measurement unit used by this view port for the map. |
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* </p> |
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* |
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* @see #getMapUnits() |
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* @see #setMapUnits(int) |
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*/ |
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private int mapUnits = 1; |
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/** |
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* <p> |
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* the affine transformation between the {@link #extent extent} in <i>map 2D |
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* coordinates</i> to the image area in the screen, in <i>screen 2D |
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* coordinates</i> (pixels). |
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* </p> |
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* |
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* @see AffineTransform |
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* |
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* @see #getAffineTransform() |
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* @see #setAffineTransform(AffineTransform) |
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* @see #calculateAffineTransform() |
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*/ |
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private AffineTransform trans = new AffineTransform(); |
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/** |
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* <p> |
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* Array with the {@link ViewPortListener ViewPortListener}s registered to |
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* this view port. |
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* </p> |
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* |
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* @see #addViewPortListener(ViewPortListener) |
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* @see #removeViewPortListener(ViewPortListener) |
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*/ |
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private ArrayList listeners = new ArrayList(); |
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/** |
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* <p> |
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* Measurement unit used for measuring distances and displaying information. |
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* </p> |
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* |
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* @see #getDistanceUnits() |
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* @see #setDistanceUnits(int) |
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*/ |
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private int distanceUnits = 1; |
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/** |
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* <p> |
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* Measurement unit used for measuring areas and displaying information. |
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* </p> |
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* |
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* @see #getDistanceArea() |
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* @see #setDistanceArea(int) |
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*/ |
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private int distanceArea = 1; |
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/** |
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* <p> |
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* Measurement unit used by this view port for the map. |
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* </p> |
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* |
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* @see #getMapUnits() |
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* @see #setMapUnits(int) |
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*/ |
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private int mapUnits = 1; |
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/** |
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* <p> |
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* The offset is the position where start drawing the map. |
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* </p> |
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* <p> |
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* The offset of a <a href="http://www.gvsig.gva.es/">gvSIG</a>'s |
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* <i>View</i> is always (0, 0) because the drawing area fits with the full |
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* window area. But in a <a href="http://www.gvsig.gva.es/">gvSIG</a>'s |
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* <i>Layout</i> it's up to the place where the <code>FFrameView</code> is |
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* located. |
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* </p> |
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* |
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* @see #getOffset() |
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* @see #setOffset(Point2D) |
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*/ |
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private Point2D offset = new Point2D.Double(0, 0); |
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/** |
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* <p> |
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* Array with the {@link ViewPortListener ViewPortListener}s registered to |
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* this view port. |
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* </p> |
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* |
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* @see #addViewPortListener(ViewPortListener) |
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* @see #removeViewPortListener(ViewPortListener) |
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*/ |
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private ArrayList listeners = new ArrayList(); |
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/** |
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* <p> |
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* Clipping area. |
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* </p> |
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*/ |
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// private Rectangle2D clip; |
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/** |
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* <p> |
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* The offset is the position where start drawing the map. |
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* </p> |
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* <p> |
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* The offset of a <a href="http://www.gvsig.gva.es/">gvSIG</a>'s |
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* <i>View</i> is always (0, 0) because the drawing area fits with the full |
|
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* window area. But in a <a href="http://www.gvsig.gva.es/">gvSIG</a>'s |
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* <i>Layout</i> it's up to the place where the <code>FFrameView</code> is |
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* located. |
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* </p> |
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* |
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* @see #getOffset() |
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* @see #setOffset(Point2D) |
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*/ |
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private Point2D offset = new Point2D.Double(0, 0); |
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/** |
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* <p> |
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* Background color of this view. |
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* </p> |
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* |
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* @see #getBackColor() |
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* @see #setBackColor(Color) |
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*/ |
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private Color backColor = null; // Color.WHITE; |
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/** |
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* <p> |
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* Clipping area. |
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* </p> |
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*/ |
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// private Rectangle2D clip; |
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/**
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* <p>
|
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* Information about the map projection used in this view.
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* </p>
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*
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* @see #getProjection()
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* @see #setProjection(IProjection)
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*/
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private IProjection proj;
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/**
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* <p>
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* Background color of this view.
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* </p>
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*
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* @see #getBackColor()
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* @see #setBackColor(Color)
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*/
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private Color backColor = null; // Color.WHITE;
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/** |
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* <p> |
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* Represents the distance in <i>world coordinates</i> equivalent to 1 pixel |
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* in the view with the current extent. |
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* </p> |
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* |
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* @see #getDist1pixel() |
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* @see #setDist1pixel(double) |
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*/ |
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private double dist1pixel; |
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/** |
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* <p> |
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* Information about the map projection used in this view. |
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* </p> |
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* |
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* @see #getProjection() |
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* @see #setProjection(IProjection) |
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*/ |
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private IProjection proj; |
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/**
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* <p>
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* Represents the distance in <i>world coordinates</i> equivalent to 3
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* pixels in the view with the current extent.
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* </p>
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*
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* @see #getDist3pixel()
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* @see #setDist3pixel(double)
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*/
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private double dist3pixel;
|
|
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/**
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* <p>
|
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* Represents the distance in <i>world coordinates</i> equivalent to 1 pixel
|
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* in the view with the current extent.
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* </p>
|
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*
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* @see #getDist1pixel()
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* @see #setDist1pixel(double)
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*/
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private double dist1pixel;
|
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349 | 344 |
|
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/** |
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* <p> |
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* Ratio between the size of <code>imageSize</code> and <code>extent</code>: |
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* <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> |
|
779 |
* If you are looking for the complete extent currently shown, you must use |
|
780 |
* the {@linkplain #getAdjustedEnvelope()} method. |
|
781 |
* </p> |
|
782 |
* |
|
783 |
* @return the current envelope |
|
784 |
* |
|
785 |
* @see #setEnvelope(Envelope) |
|
786 |
* @see #getAdjustedEnvelope() |
|
787 |
* @see #setPreviousEnvelope() |
|
788 |
* @see #getEnvelopes() |
|
789 |
*/ |
|
790 |
public Envelope getEnvelope() { |
|
791 |
if (this.extent == null) { |
|
792 |
return null; |
|
793 |
} |
|
794 |
try { |
|
795 |
return geomManager.createEnvelope(extent.getMinX(), |
|
796 |
extent.getMinY(), |
|
797 |
extent.getMaxX(), |
|
798 |
extent.getMaxY(), |
|
799 |
SUBTYPES.GEOM2D); |
|
800 |
// This class has to use Envelope instead of Rectangle2D. This catch |
|
801 |
// will disappear |
|
802 |
} catch (CreateEnvelopeException e) { |
|
803 |
logger.error("Error creating the envelope"); |
|
804 |
} |
|
805 |
return null; |
|
806 |
} |
|
856 | 807 |
|
857 |
// Lanzamos los eventos de extent cambiado |
|
858 |
callExtentChanged(getAdjustedExtent()); |
|
859 |
} |
|
808 |
/** |
|
809 |
* <p> |
|
810 |
* Changes the <i>extent</i> and <i>adjusted extent</i> of this view port:<br> |
|
811 |
* <ul> |
|
812 |
* <li>Stores the previous extent. |
|
813 |
* <li>Calculates the new extent using <code>r</code>: |
|
814 |
* |
|
815 |
* <pre> |
|
816 |
* extent = |
|
817 |
* new Rectangle2D.Double(r.getMinX() - 0.1, |
|
818 |
* r.getMinY() - 0.1, |
|
819 |
* r.getWidth() + 0.2, |
|
820 |
* r.getHeight() + 0.2); |
|
821 |
* </pre> |
|
822 |
* |
|
823 |
* <li>Executes {@linkplain #calculateAffineTransform()}: getting the new |
|
824 |
* scale, adjusted extent, affine transformation between map and screen |
|
825 |
* coordinates, the real world coordinates equivalent to 1 pixel, and the |
|
826 |
* real world coordinates equivalent to 3 pixels. |
|
827 |
* <li>Notifies all {@link ViewPortListener ViewPortListener} registered |
|
828 |
* that the extent has changed. |
|
829 |
* </ul> |
|
830 |
* </p> |
|
831 |
* |
|
832 |
* @param r |
|
833 |
* the new extent |
|
834 |
* |
|
835 |
* @see #getExtent() |
|
836 |
* @see #getExtents() |
|
837 |
* @see #calculateAffineTransform() |
|
838 |
* @see #setPreviousExtent() |
|
839 |
*/ |
|
840 |
public void setEnvelope(Envelope r) { |
|
841 |
Rectangle2D newExtent = null; |
|
842 |
// Esto comprueba que el extent no es de anchura o altura = "0" |
|
843 |
// y si es as� lo redimensiona. |
|
844 |
if (r != null) { |
|
845 |
if ((r.getMaximum(0) - r.getMinimum(0) == 0) |
|
846 |
|| (r.getMaximum(1) - r.getMinimum(1) == 0)) { |
|
847 |
newExtent = |
|
848 |
new Rectangle2D.Double(r.getMinimum(0) - 0.1, |
|
849 |
r.getMinimum(1) - 0.1, |
|
850 |
r.getMaximum(0) - r.getMinimum(0) + 0.2, |
|
851 |
r.getMaximum(1) - r.getMinimum(1) + 0.2); |
|
852 |
} else { |
|
853 |
newExtent = |
|
854 |
new Rectangle2D.Double(r.getMinimum(0), |
|
855 |
r.getMinimum(1), |
|
856 |
Math.abs(r.getMaximum(0) - r.getMinimum(0)), |
|
857 |
Math.abs(r.getMaximum(1) - r.getMinimum(1))); |
|
858 |
} |
|
859 |
} |
|
860 | 860 |
|
861 |
/** |
|
862 |
* <p> |
|
863 |
* Changes the <i>extent</i> and <i>adjusted extent</i> of this view port:<br> |
|
864 |
* <ul> |
|
865 |
* <li>Executes {@linkplain #calculateAffineTransform()}: getting the new |
|
866 |
* scale, adjusted extent, affine transformation between map and screen |
|
867 |
* coordinates, the real world coordinates equivalent to 1 pixel, and the |
|
868 |
* real world coordinates equivalent to 3 pixels. |
|
869 |
* <li>Notifies to all {@link ViewPortListener ViewPortListener} registered |
|
870 |
* that the extent has changed. |
|
871 |
* </ul> |
|
872 |
* </p> |
|
873 |
* |
|
874 |
* @see #setEnvelope(Envelope) |
|
875 |
* @see #calculateAffineTransform() |
|
876 |
*/ |
|
877 |
public void refreshExtent() { |
|
878 |
// this.scale = scale; |
|
861 |
if (this.extent != null && this.extent.equals(newExtent)) { |
|
862 |
return; |
|
863 |
} |
|
864 |
if (extent != null) { |
|
865 |
extents.put(extent); |
|
866 |
} |
|
867 |
this.updateDrawVersion(); |
|
868 |
this.extent = newExtent; |
|
879 | 869 |
|
880 |
// Calcula la transformaci�n af�n
|
|
881 |
calculateAffineTransform();
|
|
870 |
// Calcula la transformaci�n af�n
|
|
871 |
calculateAffineTransform();
|
|
882 | 872 |
|
883 |
// Lanzamos los eventos de extent cambiado
|
|
884 |
callExtentChanged(getAdjustedExtent());
|
|
885 |
}
|
|
873 |
// Lanzamos los eventos de extent cambiado
|
|
874 |
callExtentChanged(getAdjustedExtent());
|
|
875 |
}
|
|
886 | 876 |
|
887 |
/** |
|
888 |
* <p> |
|
889 |
* Calculates and returns using the current projection of this view port, |
|
890 |
* the scale that is the extent in <i>screen coordinates</i> from the image |
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