Package com.luciad.format.kml22.model.behavior

Class TLcdKML22Lod

java.lang.Object
com.luciad.datamodel.TLcdDataObject
com.luciad.format.kml22.model.TLcdKML22AbstractObject
com.luciad.format.kml22.model.behavior.TLcdKML22Lod
All Implemented Interfaces:
ILcdDataObject, ILcdCloneable, ILcdDeepCloneable, Cloneable
public class TLcdKML22Lod extends TLcdKML22AbstractObject
Domain class modeling the KML LodType type.

OGC KML Specification description: 

 This element can be used wherever the following element is referenced:

  -kml:AbstractObjectGroup

 Specifies the level of detail to use when displaying a kml:Region.
 An earth browser should calculate the size of the kml:Region when projected onto screen
 space then compute the square root of the kml:Region's area. For example, if an untiled
 kml:Region is square and the viewpoint is directly above the kml:Region, this measurement
 is equal to the width of the projected kml:Region. If this measurement falls within the limits
 defined by kml:minLodPixels and kml:maxLodPixels, and if the kml:LatLonAltBox is in
 view, then the kml:Region should be activated. If this limit is not reached, the associated
 geometry should not be drawn since it would be too far from the user's viewpoint to be
 visible.
 kml:minLodPixels shall be less than kml:maxLodPixels (where a value of -1 = infinite).
 It is also advised that kml:minFadeExtent + kml:maxFadeExtent is less than or equal to
 kml:maxLodPixels - kml:minLodPixels.
 The following diagram demonstrates how kml:Lod is used in the determination of the
 visibility of a region:
 In the following diagram, if P=the calculated projected pixel size, the circled numbers
 indicate the following:
     if (P < minLodPixels)
        opacity=0                                      //#1 in diagram
     else if(P < minLodPixels + minFadeExtent)
        opacity=(P - minLodPixels)/minFadeExtent       //#2 in diagram
     else if (P < maxLodPixels - maxFadeExtent)
        opacity=1                                      //#3 in diagram
     else if (P < maxLodPixels)
        opacity=(maxLodPixels-P)/maxFadeExtent         //#4 in diagram
     else
        opacity=0                                      //#5 in diagram
 kml:Lod shall contain the kml:minLodPixels outside of an update context, that is when not
 a descendant of kml:Update.
 See also 9.13 kml:Region.

Since:
10.0

  • Field Details

    • MIN_LOD_PIXELS_PROPERTY

      public static final TLcdDataProperty MIN_LOD_PIXELS_PROPERTY
      Data property that maps to the minLodPixels element. The possible values for this property are instances of Double.

    • MAX_LOD_PIXELS_PROPERTY

      public static final TLcdDataProperty MAX_LOD_PIXELS_PROPERTY
      Data property that maps to the maxLodPixels element. The possible values for this property are instances of Double.

    • MIN_FADE_EXTENT_PROPERTY

      public static final TLcdDataProperty MIN_FADE_EXTENT_PROPERTY
      Data property that maps to the minFadeExtent element. The possible values for this property are instances of Double.

    • MAX_FADE_EXTENT_PROPERTY

      public static final TLcdDataProperty MAX_FADE_EXTENT_PROPERTY
      Data property that maps to the maxFadeExtent element. The possible values for this property are instances of Double.

    • LOD_SIMPLE_EXTENSION_GROUP_PROPERTY

      public static final TLcdDataProperty LOD_SIMPLE_EXTENSION_GROUP_PROPERTY
      Data property that maps to the LodSimpleExtensionGroup element. The possible values for this property are instances of List<String>.

    • LOD_OBJECT_EXTENSION_GROUP_PROPERTY

      public static final TLcdDataProperty LOD_OBJECT_EXTENSION_GROUP_PROPERTY
      Data property that maps to the LodObjectExtensionGroup element. The possible values for this property are instances of List<TLcdKML22AbstractObject>.

  • Constructor Details

    • TLcdKML22Lod

      public TLcdKML22Lod(TLcdDataType aType)
      Creates a new TLcdKML22Lod with a custom TLcdDataType.
      Parameters:
      aType - a TLcdDataType.

  • Method Details

    • getMinLodPixels

      public Double getMinLodPixels()
      Returns the value of the property that maps to the minLodPixels element.
      Returns:
      the value of the MIN_LOD_PIXELS_PROPERTY property.

    • setMinLodPixels

      public void setMinLodPixels(Double aValue)
      Sets the value of the property that maps to the minLodPixels element.
      Parameters:
      aValue - the value to set for the MIN_LOD_PIXELS_PROPERTY property.

    • getMaxLodPixels

      public Double getMaxLodPixels()
      Returns the value of the property that maps to the maxLodPixels element.
      Returns:
      the value of the MAX_LOD_PIXELS_PROPERTY property.

    • setMaxLodPixels

      public void setMaxLodPixels(Double aValue)
      Sets the value of the property that maps to the maxLodPixels element.
      Parameters:
      aValue - the value to set for the MAX_LOD_PIXELS_PROPERTY property.

    • getMinFadeExtent

      public Double getMinFadeExtent()
      Returns the value of the property that maps to the minFadeExtent element.
      Returns:
      the value of the MIN_FADE_EXTENT_PROPERTY property.

    • setMinFadeExtent

      public void setMinFadeExtent(Double aValue)
      Sets the value of the property that maps to the minFadeExtent element.
      Parameters:
      aValue - the value to set for the MIN_FADE_EXTENT_PROPERTY property.

    • getMaxFadeExtent

      public Double getMaxFadeExtent()
      Returns the value of the property that maps to the maxFadeExtent element.
      Returns:
      the value of the MAX_FADE_EXTENT_PROPERTY property.

    • setMaxFadeExtent

      public void setMaxFadeExtent(Double aValue)
      Sets the value of the property that maps to the maxFadeExtent element.
      Parameters:
      aValue - the value to set for the MAX_FADE_EXTENT_PROPERTY property.