Package com.luciad.model

Class TLcd2DRegularTiledBoundsIndexedModel

java.lang.Object
com.luciad.model.ALcdModel
com.luciad.model.TLcd2DRegularTiledBoundsIndexedModel
All Implemented Interfaces:
ILcd2DBoundsIndexedModel, ILcd2DBoundsInteractable, ILcdIntegerIndexedModel, ILcdModel, ILcdBounded, ILcdDisposable, Serializable, AutoCloseable
@Deprecated public class TLcd2DRegularTiledBoundsIndexedModel extends ALcdModel implements ILcd2DBoundsIndexedModel, ILcdIntegerIndexedModel
Deprecated.
This API is only here to support deprecated formats.
This class provides an implementation of ILcd2DBoundsIndexedModel that is also an ILcdIntegerIndexedModel for models of which most elements are located in mutually exclusive geographic tiles.

The prerequisites for using this model are:

  • Most of the elements that are to be added to the model should be located in tiles of the same dimension and that are geographically non-overlapping.
  • The tiles of equal dimension, called regular tiles, should occupy a raster-like structure.
  • This raster needn't be completely covered by regular tiles (all tiles should be regular, but there may be tiles missing in the raster).
  • This tiling scheme should be known before adding elements to the model.
The higher the number of elements located in the regular tiles (compared to the number of elements not part of some regular tile), the higher the efficiency of this model will be in handling its elements.

The model has additional filters that are applied to elements that are added or removed.

This class is thread-safe for read-only access of its elements. For read-write access, external locking must be used, typically on the model itself. The utility class TLcdLockUtil provides convenient methods readLock(Object), readUnlock(Object), writeLock(Object), and writeUnlock(Object) to do so.

Before LuciadLightspeed version 7.0, the methods for accessing elements were synchronized. The current implementation no longer performs this internal synchronization, mainly for allowing concurrent read-only access and therefore better performance in multi-threaded applications. Note that internal synchronization on its own was not sufficient for safe concurrent reading and writing (e.g. due to the elements() method, which returns an enumeration). If internal synchronization is required for backward compatibility, one can set the static compatibility flag with setSynchronized(boolean), or one can define the system property com.luciad.model.TLcd2DRegularTiledBoundsIndexedModel.synchronized when starting up the Java Virtual Machine, typically as follows: 

   java -Dcom.luciad.model.TLcd2DBoundsIndexedModel.synchronized ....
Internal synchronization will then be performed, as in previous versions.
See Also:

  • Constructor Details

    • TLcd2DRegularTiledBoundsIndexedModel

      public TLcd2DRegularTiledBoundsIndexedModel(ILcdBounds aModelBounds, ILcdBounded[] aTiles, ILcdBounds aRegularTileBounds)
      Deprecated.
      Constructs a new empty TLcd2DRegularBoundsIndexedModel.
      Parameters:
      aModelBounds - the initial bounds of the model. These bounds must not be modified by the user after they have been passed. They should encompass all the elements the user plans to add to the model, whether or not they are located in a regular tile, .
      aTiles - the ILcdBounded that define the bounds of the regular tiles where the user plans to add elements into. The tiles should form a regular raster (all tiles should have the same dimensions, and should be aligned with each other in both horizontal and vertical direction), but the raster should not be completely filled with tiles. Elements that are added to this model, whose bounds do not fit into one of the given tile bounds (whether because they are outside the regular raster, or inside the raster but located on a place were no tile exists, or covering multiple tiles) will be added to the default tile, covering the given aModelBounds.
      aRegularTileBounds - the ILcdBounds which width and height define a regular tile.

      Note: passing irregular tiles (whether unaligned or of different sizes), could result in wrong results when using the applyOnInteract2DBounds methods.

    • TLcd2DRegularTiledBoundsIndexedModel

      public TLcd2DRegularTiledBoundsIndexedModel(ILcdBounds aModelBounds, ILcdBounds aRegularRasterBounds, int aNrTileCols, int aNrTileRows)
      Deprecated.
      Constructs a new empty TLcd2DRegularBoundsIndexedModel, initialized with the given model bounds. A regular raster of tiles is created within the model, based on the given raster bounds and the given number of tile rows and columns.
      Parameters:
      aModelBounds - the initial bounds of the model. These bounds must not be modified by the user after they have been passed. They should encompass all the elements, whether or not located in a regular tile, the user plans to add to the model.
      aRegularRasterBounds - the bounds that define the regular raster.
      aNrTileCols - the number of columns to be created in the regular raster.
      aNrTileRows - the number of rows to be created in the regular raster.

  • Method Details

    • setSynchronized

      public static void setSynchronized(boolean aSynchronized)
      Deprecated.
      Specifies whether accessing elements should be synchronized, for backward compatibility. The default is false.

    • isSynchronized

      public static boolean isSynchronized()
      Deprecated.
      Returns whether accessing elements is synchronized.

    • applyOnInteract2DBounds

      public int applyOnInteract2DBounds(ILcdBounds aBounds, boolean aStrictOverlap, ILcdFunction aFunctionToApply, double aPrecisionX, double aPrecisionY)
      Deprecated.
      Description copied from interface: ILcd2DBoundsIndexedModel
      Applies the specified function to all the model elements of which the 2D bounds overlap with the specified bounds. By default, the order in which the function is applied on the elements is unspecified and depends on the implementation.

      The return value of the specified function is used as a stop criterion: the spatial query is interrupted if the function returns false.

      Specified by:
      applyOnInteract2DBounds in interface ILcd2DBoundsIndexedModel
      Parameters:
      aBounds - the rectangle to test overlap with.
      aStrictOverlap - if false, the spatial search may return more elements than the ones strictly overlapping; if true, the search only returns the elements that are overlapping. The latter mode is more precise, but it may be slower.
      aFunctionToApply - the function to apply on each element that overlaps with the given bounds. The return value of the specified function is used as a stop criterion: the spatial query is interrupted if the function returns false.
      aPrecisionX - the precision required in the x dimension, expressed in model units. For example, for a cartesian grid system expressed in meters, the values should be expressed in meters as well, for a geodetic coordinate system the accuracy values should be expressed in degrees.

      The precision is useful in combination with multi-leveled data (multiple representations of the same object, but with varying accuracy), so that the most appropriate accuracy level can be used. 0 means best possible accuracy, but it might trigger lazy-loaded implementations to load lots of data.

      aPrecisionY - the precision required in the y dimension, expressed in model units.
      Returns:
      the number of elements to which the ILcdFunction has been applied.

    • applyOnInteract2DBounds

      public int applyOnInteract2DBounds(ILcdBounds aBounds, boolean aStrictOverlap, ILcdFunction aFunctionToApply, double aPrecisionX, double aPrecisionY, double aMinSizeX, double aMinSizeY, boolean aIncludePoints)
      Deprecated.
      Description copied from interface: ILcd2DBoundsInteractable
      Applies the specified function to all the elements of which the 2D bounds overlap with the specified bounds. The order in which the function is applied on the elements is unspecified and depends on the implementation.

      Only elements that have at least the specified minimal size in the x dimension or in the y dimension are considered. This can be useful for quickly eliminating elements that are too small to be visible in a view, for instance. If required, an exception can be made for point elements, which have a size of 0 by 0. They can be forced to be considered, even though they would always be rejected as being too small for any sizes larger than 0.

      The return value of the specified function is used as a stop criterion: the spatial query will be interrupted as soon as the function returns false for an element it was applied on.

      Specified by:
      applyOnInteract2DBounds in interface ILcd2DBoundsIndexedModel
      Specified by:
      applyOnInteract2DBounds in interface ILcd2DBoundsInteractable
      Parameters:
      aBounds - the rectangle to test overlap with.
      aStrictOverlap - if false, the spatial search may return more elements than the ones strictly overlapping; if true, the search only returns the elements that are overlapping. The latter mode is more precise, but it may be slower.
      aFunctionToApply - the function to apply on each element that overlaps with the given bounds.
      aPrecisionX - the precision required in the x dimension, expressed in model units. For example, for a cartesian grid system expressed in meters, the values should be expressed in meters as well, for a geodetic coordinate system the accuracy values should be expressed in degrees.

      The precision is useful in combination with multi-leveled data (multiple representations of the same object, but with varying accuracy), so that the most appropriate accuracy level can be used. 0 means best possible accuracy, but it might trigger lazy-loaded implementations to load lots of data.

      aPrecisionY - the precision required in the y dimension, expressed in model units.
      aMinSizeX - the minimal element size in the x dimension (as in ILcdBounds.getWidth()), expressed in model units. Elements that are smaller than this size will be skipped. This may, for example, be useful when improving the efficiency of painting elements by skipping elements that are smaller than some threshold (e.g. one pixel, converted to model units).
      aMinSizeY - the minimal element size in the y dimension (as in ILcdBounds.getHeight()), expressed in model units.
      aIncludePoints - if true, zero-sized elements (points) are considered as well, even though they might be smaller than the minimum size.
      Returns:
      the number of elements to which the ILcdFunction has been applied.

    • setAddElementFilter

      public void setAddElementFilter(ILcdFilter aFilter)
      Deprecated.
      Sets the filter that can filter out elements before they are added.
      Parameters:
      aFilter - the filter.
      See Also:

    • getAddElementFilter

      public ILcdFilter getAddElementFilter()
      Deprecated.
      Returns the addElement filter.
      Returns:
      the addElement filter.
      See Also:

    • setRemoveElementFilter

      public void setRemoveElementFilter(ILcdFilter aFilter)
      Deprecated.
      Sets the filter that can filter out elements before they are removed.
      Parameters:
      aFilter - the filter.
      See Also:

    • getRemoveElementFilter

      public ILcdFilter getRemoveElementFilter()
      Deprecated.
      Returns the removeElement filter.
      Returns:
      the removeElement filter.
      See Also:

    • canAddElement

      public boolean canAddElement(Object aObject)
      Deprecated.
      Description copied from class: ALcdModel
      Returns true if the specified element can be added to this model, false otherwise.

      Note that this method generally does not validate whether the specified element is expressed in the same model reference as this model. It is the responsibility of the user of this model to make sure this precondition is fulfilled when an element is added to this model.

      This implementation always returns false.

      Specified by:
      canAddElement in interface ILcdModel
      Overrides:
      canAddElement in class ALcdModel
      Parameters:
      aObject - the element to be verified.
      Returns:
      true if the specified element can be added to this model, false otherwise.

    • addElement

      public void addElement(Object aElement, int aEventMode)
      Deprecated.
      Description copied from class: ALcdModel
      Adds the specified element to this model.

      Models that support this operation may place limitations on what elements may be added to this model. For example, implementations that are based on a spatial indexing structure will require that elements implement ILcdBounded.

      When adding an element, the user should make sure that canAddElement(aElement) holds, and that the element's geometry is expressed in the same model reference as this model. It is generally undefined what happens if an invalid element is added.

      Implementations of this interface should clearly specify in their documentation any restrictions on what elements may be added. Although it is unspecified what happens if the preconditions are not met, implementations are encouraged to throw meaningful exceptions (for example, NullPointerException, IllegalArgumentException, ClassCastException, UnsupportedOperationException), whenever possible.

      This implementation always throws an UnsupportedOperationException.

      Specified by:
      addElement in interface ILcdModel
      Overrides:
      addElement in class ALcdModel
      Parameters:
      aElement - the element to be added to this model.
      aEventMode - the mode for sending out the model change event. This can be FIRE_LATER or NO_EVENT.
      See Also:

    • canRemoveElement

      public boolean canRemoveElement(Object aObject)
      Deprecated.
      Description copied from class: ALcdModel
      Returns true if the specified element can be removed from this model, false otherwise. Note that this method generally does not check whether the specified element is actually contained in this model.

      This implementation always returns false.

      Specified by:
      canRemoveElement in interface ILcdModel
      Overrides:
      canRemoveElement in class ALcdModel
      Parameters:
      aObject - the element to be verified.
      Returns:
      true if the specified element can be removed from this model, false otherwise.

    • removeElement

      public void removeElement(Object aElement, int aEventMode)
      Deprecated.
      Description copied from class: ALcdModel
      Removes the specified element from this model. If the specified element is not contained in this model, this method has no effect.

      Although it is unspecified what happens if the preconditions are not met, implementations are encouraged to throw meaningful exceptions (for example, NullPointerException, IllegalArgumentException, ClassCastException, UnsupportedOperationException), whenever possible.

      This implementation always throws an UnsupportedOperationException.

      Specified by:
      removeElement in interface ILcdModel
      Overrides:
      removeElement in class ALcdModel
      Parameters:
      aElement - the element to be removed from this model.
      aEventMode - the mode for sending out the model change event. This can be FIRE_LATER or NO_EVENT.
      See Also:

    • removeAllElements

      public void removeAllElements(int aEventMode)
      Deprecated.
      Description copied from class: ALcdModel
      Removes all elements from this model.

      If an element cannot be removed, this method will return at the first failure. Succeeding elements won't be removed.

      Although it is unspecified what happens if the preconditions are not met, implementations are encouraged to throw meaningful exceptions (for example, NullPointerException, IllegalArgumentException, ClassCastException, UnsupportedOperationException), whenever possible.

      This implementation iterates over all elements in the model, and calls removeElement(Object, int) for each element to be removed, using event mode NO_EVENT if the specified event mode is NO_EVENT, FIRE_LATER otherwise. If the specified event mode is FIRE_NOW, fireCollectedModelChanges() is called afterwards.

      Specified by:
      removeAllElements in interface ILcdModel
      Overrides:
      removeAllElements in class ALcdModel
      Parameters:
      aEventMode - the mode for sending out the model change event. This can be FIRE_LATER or NO_EVENT.

    • elementsChanged

      public void elementsChanged(Vector aObjects, int aFireEventMode)
      Deprecated.
      Description copied from class: ALcdModel
      Notifies this model that the elements in the specified vector have changed.

      This implementation calls TLcdModelChangedEventSupport#elementsChanged(java.util.Vector, int).

      Specified by:
      elementsChanged in interface ILcdModel
      Overrides:
      elementsChanged in class ALcdModel
      Parameters:
      aObjects - the vector of elements that have changed.
      aFireEventMode - the mode for sending out the model change event. This can be FIRE_LATER or NO_EVENT.

    • elementChanged

      public void elementChanged(Object aElement, int aFireEventMode)
      Deprecated.
      Description copied from class: ALcdModel
      Notifies this model that the specified element has changed.

      This implementation calls TLcdModelChangedEventSupport#elementChanged(Object, int).

      Specified by:
      elementChanged in interface ILcdModel
      Overrides:
      elementChanged in class ALcdModel
      Parameters:
      aElement - the element that has changed.
      aFireEventMode - the mode for sending out the model change event. This can be FIRE_LATER or NO_EVENT.

    • size

      public int size()
      Deprecated.
      Description copied from interface: ILcdIntegerIndexedModel
      Returns the number of elements in this model.
      Specified by:
      size in interface ILcdIntegerIndexedModel
      Returns:
      the number of elements in this model.

    • elements

      public Enumeration elements()
      Deprecated.
      Description copied from interface: ILcdModel
      Returns an enumeration over all elements of this model. The order in which the elements are enumerated is unspecified by default.
      Specified by:
      elements in interface ILcdModel
      Returns:
      an enumeration over all elements of this model.

    • elementAt

      public Object elementAt(int aIndex)
      Deprecated.
      Description copied from interface: ILcdIntegerIndexedModel
      Returns the element at the specified index.
      Specified by:
      elementAt in interface ILcdIntegerIndexedModel
      Parameters:
      aIndex - an index into this ILcdModel.
      Returns:
      the element at the specified index.

    • indexOf

      public int indexOf(Object aObject)
      Deprecated.
      Description copied from interface: ILcdIntegerIndexedModel
      Returns the index of the first occurrence of the specified element in the model, or -1 if this model does not contain the element. More formally: returns the smallest i for which this.elementAt(i).equals(aElement).
      Specified by:
      indexOf in interface ILcdIntegerIndexedModel
      Parameters:
      aObject - the element to search for.
      Returns:
      the index of the first occurrence of the specified element in model vector, or -1 if this model does not contain the element.

    • contains

      public boolean contains(Object aObject)
      Deprecated.
      Returns whether a object is present in this model.
      Parameters:
      aObject - the object for which the check is performed.
      Returns:
      whether aObject is present in this model.

    • getBounds

      public ILcdBounds getBounds()
      Deprecated.
      Description copied from interface: ILcdBounded
      Returns the ILcdBounds by which the geometry of this ILcdBounded object is bounded.

      If the geometry does not allow retrieving valid bounds (for example a polyline with 0 points) the return value is unspecified. It is highly recommended to return an undefined bounds. You can create undefined bounds using the default constructors of TLcdLonLatBounds or TLcdXYBounds.

      Specified by:
      getBounds in interface ILcdBounded
      Returns:
      the ILcdBounds by which the geometry of this ILcdBounded object is bounded.