com.esri.arcgis.carto
Class MapServerBasicSublayer

java.lang.Object
  com.esri.arcgis.carto.MapServerBasicSublayer

All Implemented Interfaces:

ILayer, ILayerDrawingProperties, ILayerGeneralProperties, ILegendInfo, IMapServerGroupLayer, IMapServerSublayer, IMapServerSublayer2, IGeoDataset, com.esri.arcgis.interop.RemoteObjRef, IPersist, IPersistStream, Externalizable, Serializable

public class MapServerBasicSublayer
extends Object
implements com.esri.arcgis.interop.RemoteObjRef, IMapServerSublayer, IMapServerSublayer2, IMapServerGroupLayer, ILayer, ILegendInfo, IGeoDataset, IPersistStream, ILayerGeneralProperties, ILayerDrawingProperties, Externalizable

Provides programmatic access to a basic map server sublayer.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

See Also:

Serialized Form

Constructor Summary

MapServerBasicSublayer(Object obj)
Construct a MapServerBasicSublayer using a reference to such an object returned from ArcGIS Engine or Server.

Method Summary

void	draw(int drawPhase, IDisplay display, ITrackCancel trackCancel) Draws the layer to the specified display for the given draw phase.
boolean	equals(Object o) Compare this object with another
IEnvelope	getAreaOfInterest() The default area of interest for the layer.
void	getClassID(GUID[] pClassID) getClassID
int	getCount() Number of layers in the collection.
IEnvelope	getExtent() The extent of the GeoDataset.
double	getLastMaximumScale() Last maximum scale setting used by layer.
double	getLastMinimumScale() Last minimum scale setting used by layer.
ILayer	getLayer(int index) Layer in the collection at the specified index.
ILayerDescription	getLayerDescription() The layer description.
ILegendGroup	getLegendGroup(int index) Legend group at the specified index.
int	getLegendGroupCount() Number of legend groups contained by the object.
ILegendItem	getLegendItem() Optional.
double	getMaximumScale() Maximum scale (representative fraction) at which the layer will display.
double	getMinimumScale() Minimum scale (representative fraction) at which the layer will display.
String	getName() Layer name.
void	getSizeMax(_ULARGE_INTEGER[] pcbSize) getSizeMax
String	getSourceID() The source ID of the layer.
ISpatialReference	getSpatialReference() The spatial reference of the GeoDataset.
int	getSupportedDrawPhases() Supported draw phases.
String	getTipText(double x, double y, double tolerance) Map tip text at the specified location.
int	hashCode() the hashcode for this object
String	ILayerGeneralProperties_getLayerDescription() Description for the layer.
boolean	isCached() Indicates if the layer needs its own display cache.
void	isDirty() isDirty
boolean	isDrawingPropsDirty() Indicates if the layer drawing properties are dirty.
boolean	isHasLabels() Indicates if the layer has labels to turn on and off.
boolean	isScaleSymbols() Indicates whether the layer should scale its symbols according to the reference scale.
boolean	isShowLabels() Indicates whether the layer should display its dynamic labels.
boolean	isShowTips() Indicates if the layer shows map tips.
boolean	isSymbolsAreGraduated() Indicates if symbols are graduated.
boolean	isValid() Indicates if the layer is currently valid.
boolean	isVisible() Indicates if the layer is currently visible.
void	load(IStream pstm) load
void	readExternal(ObjectInput in)
void	save(IStream pstm, int fClearDirty) save
void	setCached(boolean cached) Indicates if the layer needs its own display cache.
void	setDrawingPropsDirty(boolean dirty) Indicates if the layer drawing properties are dirty.
void	setLayerDescription(String text) Description for the layer.
void	setMaximumScale(double maxScale) Maximum scale (representative fraction) at which the layer will display.
void	setMinimumScale(double minScale) Minimum scale (representative fraction) at which the layer will display.
void	setName(String name) Layer name.
void	setScaleSymbols(boolean scaleSymbols) Indicates whether the layer should scale its symbols according to the reference scale.
void	setShowLabels(boolean show) Indicates whether the layer should display its dynamic labels.
void	setShowTips(boolean show) Indicates if the layer shows map tips.
void	setSourceID(String sourceID) The source ID of the layer.
void	setSpatialReferenceByRef(ISpatialReference rhs1) Spatial reference for the layer.
void	setSymbolsAreGraduated(boolean symbolsAreGraduated) Indicates if symbols are graduated.
void	setVisible(boolean visible) Indicates if the layer is currently visible.
void	showLayers(boolean show, ILongArray layerIds) Shows/ hides the layers given layer ids.
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.esri.arcgis.interop.RemoteObjRef

getJintegraDispatch, release

Constructor Detail

MapServerBasicSublayer

public MapServerBasicSublayer(Object obj)
                       throws IOException

Construct a MapServerBasicSublayer using a reference to such an object returned from ArcGIS Engine or Server. This is semantically equivalent to casting obj to MapServerBasicSublayer.
Casting to this class from the return value of a method will not work, as this class represents an abstract class in ArcObjects.
*
MapServerBasicSublayer o = (MapServerBasicSublayer)obj; // will not work

MapServerBasicSublayer o = new MapServerBasicSublayer(obj); // Use this constructor instead
* @param obj an object returned from ArcGIS Engine or Server

Throws:

IOException - if there are interop problems MapServerBasicSublayer theMapServerBasicSublayer = (MapServerBasicSublayer) obj;

Method Detail

equals

public boolean equals(Object o)

Compare this object with another

Overrides:

equals in class Object

hashCode

public int hashCode()

the hashcode for this object

Overrides:

hashCode in class Object

isHasLabels

public boolean isHasLabels()
                    throws IOException,
                           AutomationException

Indicates if the layer has labels to turn on and off.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

isHasLabels in interface IMapServerSublayer

Specified by:

isHasLabels in interface IMapServerSublayer2

Returns:

The hasLabels

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isShowLabels

public boolean isShowLabels()
                     throws IOException,
                            AutomationException

Indicates whether the layer should display its dynamic labels.

Remarks

This only applies to layers where the property HasLabels on IMapServerSubLayer is TRUE. This means that the layer's labels must be "on" in the original map document.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

isShowLabels in interface IMapServerSublayer

Specified by:

isShowLabels in interface IMapServerSublayer2

Returns:

The show

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setShowLabels

public void setShowLabels(boolean show)
                   throws IOException,
                          AutomationException

Indicates whether the layer should display its dynamic labels.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

setShowLabels in interface IMapServerSublayer

Specified by:

setShowLabels in interface IMapServerSublayer2

Parameters:

show - The show (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isScaleSymbols

public boolean isScaleSymbols()
                       throws IOException,
                              AutomationException

Indicates whether the layer should scale its symbols according to the reference scale.

Remarks

A reference scale set for a map containing a Map Server object will have no effect on Map Server layer symbology. In order for symbols to scale, the originial map document on which the Map Server object is based must have a reference scale set. The Map layer must also support symbol scaling. If both these conditions are true, use ScaleSymbols to activate or deactivate a Map Server Sublayer's symbol scaling.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

isScaleSymbols in interface IMapServerSublayer

Specified by:

isScaleSymbols in interface IMapServerSublayer2

Returns:

The scaleSymbols

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setScaleSymbols

public void setScaleSymbols(boolean scaleSymbols)
                     throws IOException,
                            AutomationException

Indicates whether the layer should scale its symbols according to the reference scale.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

setScaleSymbols in interface IMapServerSublayer

Specified by:

setScaleSymbols in interface IMapServerSublayer2

Parameters:

scaleSymbols - The scaleSymbols (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getLayerDescription

public ILayerDescription getLayerDescription()
                                      throws IOException,
                                             AutomationException

The layer description.

Remarks

Use LayerDescription to access properties of ILayerDescription. The ID value may not match the Layer index value on ICompositeLayer or ICompositeLayer2. This is because the count on ICompositeLayer or ICompositeLayer2 does not include members of composite layers embedded within the MapServerSublayer. Only the parent layer is counted.

MapServerSubLayer does not support the ILayerDescription properties ScaleSymbols, ShowLabels and Visible. ScaleSymbols and ShowLabels can be accessed via IMapServerSubLayer. The property controlling a MapServerSubLayers visibility, Visible, can be accessed via ILayer.

The ILayerDescription properties SelectionFeatures, SelectionColor, SelectionSymbol, SetSelectionSymbol, SelectionBufferDistance and ShowSelectionBuffer can be used to select and buffer (euclidean buffer) features of a Map Server SubLayer.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

getLayerDescription in interface IMapServerSublayer

Specified by:

getLayerDescription in interface IMapServerSublayer2

Returns:

A reference to a com.esri.arcgis.carto.ILayerDescription

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getSourceID

public String getSourceID()
                   throws IOException,
                          AutomationException

The source ID of the layer.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Specified by:

getSourceID in interface IMapServerSublayer2

Returns:

The sourceID

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setSourceID

public void setSourceID(String sourceID)
                 throws IOException,
                        AutomationException

The source ID of the layer.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Specified by:

setSourceID in interface IMapServerSublayer2

Parameters:

sourceID - The sourceID (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

showLayers

public void showLayers(boolean show,
                       ILongArray layerIds)
                throws IOException,
                       AutomationException

Shows/ hides the layers given layer ids.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Specified by:

showLayers in interface IMapServerGroupLayer

Parameters:

show - The show (in)

layerIds - A reference to a com.esri.arcgis.system.ILongArray (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getCount

public int getCount()
             throws IOException,
                    AutomationException

Number of layers in the collection.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Specified by:

getCount in interface IMapServerGroupLayer

Returns:

The layerCount

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getLayer

public ILayer getLayer(int index)
                throws IOException,
                       AutomationException

Layer in the collection at the specified index.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Specified by:

getLayer in interface IMapServerGroupLayer

Parameters:

index - The index (in)

Returns:

A reference to a com.esri.arcgis.carto.ILayer

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getName

public String getName()
               throws IOException,
                      AutomationException

Layer name.

Description

Remarks

Use this property to associate a string with a layer.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

getName in interface ILayer

Returns:

The name

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setName

public void setName(String name)
             throws IOException,
                    AutomationException

Layer name.

Description

Use the Name property to associate a string with the layer.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

setName in interface ILayer

Parameters:

name - The name (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isValid

public boolean isValid()
                throws IOException,
                       AutomationException

Indicates if the layer is currently valid.

Remarks

The valid property indicates if the layer is currently valid. Layers that reference feature classes are valid when they hold a reference to a valid feature class. The property does not however validate the integrity of the feature classes reference to the database. Therefore, in rare situations if a datasource is removed after a layer is initialized, the layer will report itself as valid but query attempts to the data source will error due to the lack of underlying data.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

isValid in interface ILayer

Returns:

The valid

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getAreaOfInterest

public IEnvelope getAreaOfInterest()
                            throws IOException,
                                   AutomationException

The default area of interest for the layer.

Remarks

Returns the spatial-referenced extent of the layer.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

getAreaOfInterest in interface ILayer

Returns:

A reference to a com.esri.arcgis.geometry.IEnvelope

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getMinimumScale

public double getMinimumScale()
                       throws IOException,
                              AutomationException

Minimum scale (representative fraction) at which the layer will display.

Remarks

Specifies the minimum scale at which the layer will be displayed. This means that if you zoom out beyond this scale, the layer will not display. For example, specify 1000 to have the layer not display when zoomed out beyond 1:1000.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

getMinimumScale in interface ILayer

Returns:

The minScale

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setMinimumScale

public void setMinimumScale(double minScale)
                     throws IOException,
                            AutomationException

Minimum scale (representative fraction) at which the layer will display.

Description

MinimumScale property specifies the minimum scale at which the layer will be displayed. Assign a Double value to set this property.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

setMinimumScale in interface ILayer

Parameters:

minScale - The minScale (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getMaximumScale

public double getMaximumScale()
                       throws IOException,
                              AutomationException

Maximum scale (representative fraction) at which the layer will display.

Remarks

Specifies the maximum scale at which the layer will be displayed. This means that if you zoom in beyond this scale, the layer will not display. For example, specify 500 to have the layer not display when zoomed in beyond 1:500.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

getMaximumScale in interface ILayer

Returns:

The maxScale

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setMaximumScale

public void setMaximumScale(double maxScale)
                     throws IOException,
                            AutomationException

Maximum scale (representative fraction) at which the layer will display.

Description

MaximumScale property specifies the maximum scale at which the layer will be displayed. Assign a Double value to set this property.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

setMaximumScale in interface ILayer

Parameters:

maxScale - The maxScale (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isVisible

public boolean isVisible()
                  throws IOException,
                         AutomationException

Indicates if the layer is currently visible.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

isVisible in interface ILayer

Returns:

The visible

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setVisible

public void setVisible(boolean visible)
                throws IOException,
                       AutomationException

Indicates if the layer is currently visible.

Description

Use Visible property to set the visibility of the layer. When assigned False, the layer is invisible in the current view.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

setVisible in interface ILayer

Parameters:

visible - The visible (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isShowTips

public boolean isShowTips()
                   throws IOException,
                          AutomationException

Indicates if the layer shows map tips.

Remarks

Indicates whether or not map tips are shown for the layer. If set to True, then map tips will be shown for the layer. You can determine the text that will be shown via TipText. For a FeatureLayer, this text comes from the data for IFeatureLayer::DisplayField.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

isShowTips in interface ILayer

Returns:

The show

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setShowTips

public void setShowTips(boolean show)
                 throws IOException,
                        AutomationException

Indicates if the layer shows map tips.

Description

ShowTips is set to True when the layer shows map tips specified in the TipText property.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

setShowTips in interface ILayer

Parameters:

show - The show (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getTipText

public String getTipText(double x,
                         double y,
                         double tolerance)
                  throws IOException,
                         AutomationException

Map tip text at the specified location.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Specified by:

getTipText in interface ILayer

Parameters:

x - The x (in)

y - The y (in)

tolerance - The tolerance (in)

Returns:

The text

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isCached

public boolean isCached()
                 throws IOException,
                        AutomationException

Indicates if the layer needs its own display cache.

Remarks

This property indicates whether or not the layer requires its own display cache. If this property is True, then the Map will use a separate display cache for the layer so that it can be refreshed indpendently of other layers.

The Map is responsible for cache management. See IScreenDisplay::AddCache for more information on caches.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

isCached in interface ILayer

Returns:

The cached

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setCached

public void setCached(boolean cached)
               throws IOException,
                      AutomationException

Indicates if the layer needs its own display cache.

Description

Use Cached property to indicate if the layer needs its own cache for display.

Remarks

Informational property. Container is responsible for cache management.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

setCached in interface ILayer

Parameters:

cached - The cached (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getSupportedDrawPhases

public int getSupportedDrawPhases()
                           throws IOException,
                                  AutomationException

Supported draw phases.

Remarks

Indicates the draw phases supported by the layer (esriDPGeography, esriDPAnnotation, esriDPSelection, or any combination of the three). The supported draw phases are defined by esriDrawPhase. When multiple draw phases are supported, the sum of the constants is used. For example, if SupportedDrawPhases = 3 then the layer supports drawing in the geography and annotation phases.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

getSupportedDrawPhases in interface ILayer

Returns:

The drawPhases

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setSpatialReferenceByRef

public void setSpatialReferenceByRef(ISpatialReference rhs1)
                              throws IOException,
                                     AutomationException

Spatial reference for the layer.

Remarks

This property is only used for map display, setting this property does not change the spatial reference of the layer's underlying data. The ArcGIS framework uses this property to pass the spatial reference from the map to the layer in order to support on-the-fly projection.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

setSpatialReferenceByRef in interface ILayer

Parameters:

rhs1 - A reference to a com.esri.arcgis.geometry.ISpatialReference (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

draw

public void draw(int drawPhase,
                 IDisplay display,
                 ITrackCancel trackCancel)
          throws IOException,
                 AutomationException

Draws the layer to the specified display for the given draw phase.

Remarks

This method draws the layer to the Display for the specified DrawPhase. Use the TrackCancel object to allow the drawing of the layer to be interrupted by the user.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

draw in interface ILayer

Parameters:

drawPhase - A com.esri.arcgis.system.esriDrawPhase constant (in)

display - A reference to a com.esri.arcgis.display.IDisplay (in)

trackCancel - A reference to a com.esri.arcgis.system.ITrackCancel (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getLegendGroupCount

public int getLegendGroupCount()
                        throws IOException,
                               AutomationException

Number of legend groups contained by the object.

Remarks

The number of legend groups is determined by the implementation of the renderer, consequently this property is read only. For example, SimpleRenderer has one group, while a BiUniqueValueRenderer has any number of groups.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

getLegendGroupCount in interface ILegendInfo

Returns:

The count

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getLegendGroup

public ILegendGroup getLegendGroup(int index)
                            throws IOException,
                                   AutomationException

Legend group at the specified index.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Specified by:

getLegendGroup in interface ILegendInfo

Parameters:

index - The index (in)

Returns:

A reference to a com.esri.arcgis.carto.ILegendGroup

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getLegendItem

public ILegendItem getLegendItem()
                          throws IOException,
                                 AutomationException

Optional. Defines legend formatting for layer rendered with this object.

Remarks

Layer or renderer legend information is further formatted for display in ArcMap legends. A renderer can override this formatting by returning a LegendItem for this property. ESRI renderers typically do not return anything for this property. With this configuration, legend formatting becomes a user or developer choice on the legend object.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

getLegendItem in interface ILegendInfo

Returns:

A reference to a com.esri.arcgis.carto.ILegendItem

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isSymbolsAreGraduated

public boolean isSymbolsAreGraduated()
                              throws IOException,
                                     AutomationException

Indicates if symbols are graduated.

Description

Indicates whether the symbols used for a layer or renderer's legend vary by size.

Remarks

For example the proportional symbol renderer returns True for this property.

You can use this property to distinguish between a layer symbolized with graduated color or graduated symbol type layer symbology. Both of these symbolizations use a ClassBreaksRenderer, but only a graduated symbol symbolization will return True for this property.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

isSymbolsAreGraduated in interface ILegendInfo

Returns:

The symbolsAreGraduated

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setSymbolsAreGraduated

public void setSymbolsAreGraduated(boolean symbolsAreGraduated)
                            throws IOException,
                                   AutomationException

Indicates if symbols are graduated.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

setSymbolsAreGraduated in interface ILegendInfo

Parameters:

symbolsAreGraduated - The symbolsAreGraduated (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getSpatialReference

public ISpatialReference getSpatialReference()
                                      throws IOException,
                                             AutomationException

The spatial reference of the GeoDataset.

Remarks

This property is read only. For layers, when the first layer is added to ArcMap, its spatial reference is read by this property, and the map is set to this spatial reference.

Instances of the esriCarto.GroupLayer class will return null for this property, as a group layer can contain multiple datasets with different spatial references.

Modifications to a spatial reference returned by this property will not be persisted. To modify the spatial reference of a dataset, the IGeoDatasetSchemaEdit and IGeoDatasetSchemaEdit2 interfaces should be used.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

getSpatialReference in interface IGeoDataset

Returns:

A reference to a com.esri.arcgis.geometry.ISpatialReference

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getExtent

public IEnvelope getExtent()
                    throws IOException,
                           AutomationException

The extent of the GeoDataset.

Remarks

The IGeoDataset::Extent property returns an envelope representing the maximum extent of data which has been stored in the dataset.

Consider the following scenario. A new feature class has features added to it. The IGeoDataset::Extent is then requested and an envelope is returned. The extents of the envelope returned are represented by the red box in the image below.

If a portion of the features were then deleted and the extent is again requested an envelope with the exact same extents as during the first request would be returned (see image below). This is because the deletion of features does not shrink the extent. However all additions of features outside the red box would increase the envelope returned to encompass the newly added features.

If you would like to update the IGeoDataset::Extent property to reflect the current features in your dataset please see IFeatureClassManage::UpdateExtent (also see IFeatureClassLoad). In the image below the extent has been updated and a new envelope is being returned.

ESRI's GroupLayer implements this property differently from most other layer coclasses. When you instantiate a new GroupLayer, this property will return a valid envelope with zero height and width. With most other newly instantiated layers (for example FeatureLayer, RasterLayer, TinLayer), this property initally returns Nothing.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

getExtent in interface IGeoDataset

Returns:

A reference to a com.esri.arcgis.geometry.IEnvelope

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isDirty

public void isDirty()
             throws IOException,
                    AutomationException

isDirty

Description

IPersistStream is a Microsoft interface. Please refer to MSDN for information about this interface.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

isDirty in interface IPersistStream

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

load

public void load(IStream pstm)
          throws IOException,
                 AutomationException

load

Description

IPersistStream is a Microsoft interface. Please refer to MSDN for information about this interface.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

load in interface IPersistStream

Parameters:

pstm - A reference to a com.esri.arcgis.system.IStream (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

save

public void save(IStream pstm,
                 int fClearDirty)
          throws IOException,
                 AutomationException

save

Description

IPersistStream is a Microsoft interface. Please refer to MSDN for information about this interface.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

save in interface IPersistStream

Parameters:

pstm - A reference to a com.esri.arcgis.system.IStream (in)

fClearDirty - The fClearDirty (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getSizeMax

public void getSizeMax(_ULARGE_INTEGER[] pcbSize)
                throws IOException,
                       AutomationException

getSizeMax

Description

IPersistStream is a Microsoft interface. Please refer to MSDN for information about this interface.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

getSizeMax in interface IPersistStream

Parameters:

pcbSize - A Structure: com.esri.arcgis.system._ULARGE_INTEGER (out: use single element array)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getClassID

public void getClassID(GUID[] pClassID)
                throws IOException,
                       AutomationException

getClassID

Description

IPersist is a Microsoft interface. Please refer to MSDN for information about this interface.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

getClassID in interface IPersist

Parameters:

pClassID - A Structure: com.esri.arcgis.support.ms.stdole.GUID (out: use single element array)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getLastMinimumScale

public double getLastMinimumScale()
                           throws IOException,
                                  AutomationException

Last minimum scale setting used by layer.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

getLastMinimumScale in interface ILayerGeneralProperties

Returns:

The minScale

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getLastMaximumScale

public double getLastMaximumScale()
                           throws IOException,
                                  AutomationException

Last maximum scale setting used by layer.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

getLastMaximumScale in interface ILayerGeneralProperties

Returns:

The maxScale

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

ILayerGeneralProperties_getLayerDescription

public String ILayerGeneralProperties_getLayerDescription()
                                                   throws IOException,
                                                          AutomationException

Description for the layer.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Specified by:

ILayerGeneralProperties_getLayerDescription in interface ILayerGeneralProperties

Returns:

The text

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setLayerDescription

public void setLayerDescription(String text)
                         throws IOException,
                                AutomationException

Description for the layer.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

setLayerDescription in interface ILayerGeneralProperties

Parameters:

text - The text (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isDrawingPropsDirty

public boolean isDrawingPropsDirty()
                            throws IOException,
                                   AutomationException

Indicates if the layer drawing properties are dirty.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

isDrawingPropsDirty in interface ILayerDrawingProperties

Returns:

The dirty

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setDrawingPropsDirty

public void setDrawingPropsDirty(boolean dirty)
                          throws IOException,
                                 AutomationException

Indicates if the layer drawing properties are dirty.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:

setDrawingPropsDirty in interface ILayerDrawingProperties

Parameters:

dirty - The dirty (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException