| Interface | Description |
|---|---|
| DataChangeListener |
Interface for classes listening for data change events.
|
| DataContext |
This interface defines the context in which
the collection of data classes (e.g.,
DataChoice,
DirectDataChoice, DerivedDataDescriptor,
DataSource etc.) exist. |
| DataSource |
Interface for a source of Data
|
| DataSourceFactory |
An interface for DataSource factory methods
|
| Class | Description |
|---|---|
| AddeUtil |
A class for holding some Adde related constants and static methods
|
| CacheDataSource |
Used to cache a data choice and its data
|
| CacheDataSource.DataChoiceHolder |
Class DataChoiceHolder holds a data chocie and a unique id and a name
|
| CompositeDataChoice |
A class for compositing data choices.
|
| DataAlias |
This class manages a set of data aliases - a mapping between
canonical names and a list of aliases for the canonical name.
|
| DataCategory |
This represents a hierarchical category of string names
and is used to categorize different flavors of data within
DataChoice objects and for determining what displays are applicable
to what data.
|
| DataChoice |
An abstract base class that represents some selection of data.
|
| DataDataChoice |
A data choice that simply holds a reference to a visad.Data object
|
| DataGroup |
A generic base class that represents a source of data.
|
| DataInstance |
A superclass for data instances.
|
| DataManager |
A class for managing
DataSources |
| DataOperand |
This class holds a name/value pair that represents an operand for the
DerivedDataChoice
|
| DataReferenceListener |
A class for listening to changes in DataReferences
|
| DataSelection |
A class that represents some selection of data.
|
| DataSelectionComponent |
Used by a display control and field selector to show arbitrary data
selection stuff.
|
| DataSourceDescriptor |
A class to hold the descriptive metadata about a DataSource
|
| DataSourceImpl |
An abstract class that implements the DataSource interface.
|
| DataSourceResults |
Holds the results from the createDataSource call.
|
| DataTimeRange |
Class DataTimeRange specifies a time range
|
| DataUtil |
A class to hold general utility functions for manipulating data
|
| DerivedDataChoice |
A subclass of DataChoice for derived quantities.
|
| DerivedDataDescriptor |
This class is used to hold the descriptions of possible
DerivedDataChoice-s that are specified in the derived.xml
resource file. |
| DerivedNeed |
This class holds the specification of the "
|
| DescriptorDataSource |
This simply holds a list of DerivedDataDescriptors
It is used, for example, to represent a collection
of end-user defined formulas (i.e., DerivedDataDescriptor)
|
| DirectDataChoice |
A subclass of DataChoice for supporting a leaf choice.
|
| FilesDataSource |
A data source for balloon and aircraft tracks
|
| GempakUtil |
Created by yuanho on 9/11/15.
|
| GeoLocationInfo |
Holds geo-location information - lat/lon bounding box, image size, etc.
|
| GeoSelection |
Holds geo-location information - lat/lon bounding box, image size, etc.
|
| GeoSelectionPanel |
Holds geo-location information - lat/lon bounding box, image size, etc.
|
| GeoSelectionPanel.MyNavigatedMapPanel |
Class MyNavigatedMapPanel shows the subset panel
|
| ListDataChoice |
A subclass of DataChoice for derived quantities.
|
| ListDataSource |
This simply holds a list of DataChoices
It is used, for example, to represent a collection
of end-user defined formulas (i.e., DerivedDataChoice)
|
| NamedArray | |
| SerializedDataSource |
This data source knows how to read in a zip file that contains an index xml file and a set of
serialized visad.Data objects
|
| UnboundDataChoice |
Represents a DataChoice in a formula that is unbound.
|
| UrlDataChoice |
A DataChoice for a URL
|
| UserDataChoice |
Represents a DataChoice in a formula that is numeric.
|
| UserOperandValue |
This class holds a name/value pair that represents an operand for the
DerivedDataChoice
|
| UtmInfo |
A class for holding some Adde related constants and static methods
|
| VarInfo |
Class Variable Holds info about track variables
|
| VisadDataSource |
This is an implementation that will read in a generic data file
and return a single Data choice that is a VisAD Data object.
|
| Exception | Description |
|---|---|
| BadDataException |
WrapperException thrown for bad data |
| DataCancelException |
Exception thrown when loading of data is canceled.
|
There are some utility methods that allow you to create a DataCategory from a
"-" separated String definition. For example:
DataCategory category = DataCategory.parseCategory ("2D grid", true);
Will give a DataCategory with the single component "2D grid". The true
says to make the DataCategory be a display category.
Alternatively:
DataCategory.parseCategory ("GRID-2D-TIME;", false);
will create a non-display DataCategory that can be used by DisplayControl-s
that need gridded, 2 dimensional data with time.
Another utility method takes a String of ";" delimited DataCategory specifications
and returns a List:
List 2dcategories = DataCategory.parseCategories ("2D grid;GRID-2D-TIME;");
Or
List 3dcategories = DataCategory.parseCategories ("3D grid;GRID-3D-TIME;");
Here by default the first category parsed (e.g., "2D grid" and "3D grid") will
be the display categories.
So the DataChoice objects, which represent data available from a DataSource,
hold a list of categories that define the flavor of data. The DisplayControl-s,
(well really the ControlDescriptor-s) hold a list of
categories which define the flavors of data they are applicable to. The categories that
a DisplayControl has can contain regular expression patterns.
To see what display controls are applicable to what categories look at the file:
/ucar/unidata/idv/resources.controls.xml
There you will see entries like:
categories="*-2D-*;*-3D-*"This says that the given DisplayControl is applicable to anything that has 2D or 3D in any of its category components.
The TextDisplayControl has categories:
categories="text;html"which says it is applicable to any category of "text" or "html"
The image sequence control has a single category:
categories="IMAGE-2D-TIME"Which says it will only match data that has the exact category 2d, images with time.