com.esri.arcgis.controls
Class Snapping

java.lang.Object
  com.esri.arcgis.controls.Snapping

All Implemented Interfaces:

ISnappingEnvironment, com.esri.arcgis.interop.RemoteObjRef, IExtension, Serializable

public class Snapping
extends Object
implements com.esri.arcgis.interop.RemoteObjRef, ISnappingEnvironment, IExtension

Provides the snapping environment for tools to use.

Product Availability

Available with ArcGIS Engine.

See Also:

Serialized Form

Field Summary

Fields inherited from interface com.esri.arcgis.system.IExtension

IID, IID7f657ec9_dbf1_11d2_9f2f_00c04f6bc69e, xxDummy

Constructor Summary

Snapping()
Constructs a Snapping using ArcGIS Engine.

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

Method Summary

boolean	equals(Object o) Compare this object with another
static String	getClsid() getClsid.
String	getName() The name of the extension.
IPointSnapper	getPointSnapper() Returns the point snapper.
int	getSnappingType() The types of snapping currently being considered.
IColor	getSnapSymbolColor() The color of the snapping symbol.
ITextSymbol	getSnapTipSymbol() The symbol that displays the snap tip.
int	getSnapTipType() The types of snapping tip to be displayed.
int	getTolerance() Sets the snap tolerance in pixels.
int	hashCode() the hashcode for this object
boolean	isEnabled() Toggles snapping on/off.
boolean	isIgnoreIMSLayers() Ignores layers with slow response times.
boolean	isShowSnapTipBackground() Toggles snap tip background on/off.
boolean	isShowSnapTips() Toggles snap tips on/off.
boolean	isTextSnapping() Toggles snapping to text on/off.
void	setEnabled(boolean snapping) Toggles snapping on/off.
void	setIgnoreIMSLayers(boolean flag) Ignores layers with slow response times.
void	setPointSnapperByRef(IPointSnapper snapper) Returns the point snapper.
void	setShowSnapTipBackground(boolean show) Toggles snap tip background on/off.
void	setShowSnapTips(boolean show) Toggles snap tips on/off.
void	setSnappingType(int options) The types of snapping currently being considered.
void	setSnapSymbolColorByRef(IColor color) The color of the snapping symbol.
void	setSnapTipSymbolByRef(ITextSymbol symbol) The symbol that displays the snap tip.
void	setSnapTipType(int options) The types of snapping tip to be displayed.
void	setTextSnapping(boolean snapping) Toggles snapping to text on/off.
void	setTolerance(int tol) Sets the snap tolerance in pixels.
void	shutdown() Shuts down the extension.
void	startup(Object initializationData) Starts up the extension with the given initialization data.

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

Snapping

public Snapping()
         throws IOException,
                UnknownHostException

Constructs a Snapping using ArcGIS Engine.

Throws:

IOException - if there are interop problems

UnknownHostException - if there are interop problems

Snapping

public Snapping(Object obj)
         throws IOException

Construct a Snapping using a reference to such an object returned from ArcGIS Engine or Server. This is semantically equivalent to casting obj to Snapping.

Parameters:

obj - an object returned from ArcGIS Engine or Server

Throws:

IOException - if there are interop problems Snapping theSnapping = (Snapping) obj;

Method Detail

getClsid

public static String getClsid()

getClsid.

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

isEnabled

public boolean isEnabled()
                  throws IOException,
                         AutomationException

Toggles snapping on/off.

Remarks

The Enabled property determines whether the snapping environment is active. If enabled, tools that utilize the mouse movement will return valid ISnappingResult references. Because this is setting is shared across all tools and applications, it is not recommended that individual tools modify this setting.

Product Availability

Available with ArcGIS Engine.

Specified by:

isEnabled in interface ISnappingEnvironment

Returns:

The snapping

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setEnabled

public void setEnabled(boolean snapping)
                throws IOException,
                       AutomationException

Toggles snapping on/off.

Product Availability

Available with ArcGIS Engine.

Specified by:

setEnabled in interface ISnappingEnvironment

Parameters:

snapping - The snapping (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isTextSnapping

public boolean isTextSnapping()
                       throws IOException,
                              AutomationException

Toggles snapping to text on/off.

Product Availability

Available with ArcGIS Engine.

Specified by:

isTextSnapping in interface ISnappingEnvironment

Returns:

The snapping

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setTextSnapping

public void setTextSnapping(boolean snapping)
                     throws IOException,
                            AutomationException

Toggles snapping to text on/off.

Product Availability

Available with ArcGIS Engine.

Specified by:

setTextSnapping in interface ISnappingEnvironment

Parameters:

snapping - The snapping (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getSnappingType

public int getSnappingType()
                    throws IOException,
                           AutomationException

The types of snapping currently being considered.

Remarks

Use the esriSnappingType enumeration to define which snapping types should be evaluated when IPointSnapper.Snap is called. An individual snapping type can be specified, or a combination of snapping types may be used. The combination of snapping types is accomplished using a bit mask.

Snapping Types are evaluated in a fixed order defined below:

1. esriSnappingTypePoint
2. esriSnappingTypeIntersection
3. esriSnappingTypeEndpoint
4. esriSnappingTypeVertex
5. esriSnappingTypeMidpoint
6. esriSnappingTypeTangent
7. esriSnappingTypeEdge
   

SnappingType is an application-level setting.

Product Availability

Available with ArcGIS Engine.

Specified by:

getSnappingType in interface ISnappingEnvironment

Returns:

A com.esri.arcgis.controls.esriSnappingType constant

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setSnappingType

public void setSnappingType(int options)
                     throws IOException,
                            AutomationException

The types of snapping currently being considered.

Product Availability

Available with ArcGIS Engine.

Specified by:

setSnappingType in interface ISnappingEnvironment

Parameters:

options - A com.esri.arcgis.controls.esriSnappingType constant (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isShowSnapTips

public boolean isShowSnapTips()
                       throws IOException,
                              AutomationException

Toggles snap tips on/off.

Remarks

Determines whether snap tips are shown when a snapping type is satisfied. By default, snap tips are shown. The information displayed in the snap tip is determined by ISnappingEnvironment.SnapTipType.

ShowSnapTips is an application-level setting.

Product Availability

Available with ArcGIS Engine.

Specified by:

isShowSnapTips in interface ISnappingEnvironment

Returns:

The show

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setShowSnapTips

public void setShowSnapTips(boolean show)
                     throws IOException,
                            AutomationException

Toggles snap tips on/off.

Product Availability

Available with ArcGIS Engine.

Specified by:

setShowSnapTips in interface ISnappingEnvironment

Parameters:

show - The show (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getSnapTipType

public int getSnapTipType()
                   throws IOException,
                          AutomationException

The types of snapping tip to be displayed.

Remarks

The snapping tip type can contain the layer name of the feature layer that was snapped to, or the snapping type that was satisfied. The default is to show both the layer name and the snapping type as part of the snap tip.

Product Availability

Available with ArcGIS Engine.

Specified by:

getSnapTipType in interface ISnappingEnvironment

Returns:

A com.esri.arcgis.controls.esriSnappingTipType constant

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setSnapTipType

public void setSnapTipType(int options)
                    throws IOException,
                           AutomationException

The types of snapping tip to be displayed.

Product Availability

Available with ArcGIS Engine.

Specified by:

setSnapTipType in interface ISnappingEnvironment

Parameters:

options - A com.esri.arcgis.controls.esriSnappingTipType constant (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getSnapTipSymbol

public ITextSymbol getSnapTipSymbol()
                             throws IOException,
                                    AutomationException

The symbol that displays the snap tip.

Remarks

The SnapTipSymbol defines the textsymbol that is used to display information provided in the snap result’s description after a valid snap location was found. If ISnappingEnvironment.SnapTipType = 0 (no snap tip) this setting had no effect.

You have a number of options to customize the tip symbol, including advanced text capabilities provided by IFormattedTextSymbol to provide options for backgrounds, offsets, or right-to-left text capabilities.
The location of the tip is not customizable; the application will display the snap tip above and to the right of the snap location, unless at the extreme top or right bounds of the display.
SnapTipSymbol is an application-level setting.

Product Availability

Available with ArcGIS Engine.

Specified by:

getSnapTipSymbol in interface ISnappingEnvironment

Returns:

A reference to a com.esri.arcgis.display.ITextSymbol

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setSnapTipSymbolByRef

public void setSnapTipSymbolByRef(ITextSymbol symbol)
                           throws IOException,
                                  AutomationException

The symbol that displays the snap tip.

Product Availability

Available with ArcGIS Engine.

Specified by:

setSnapTipSymbolByRef in interface ISnappingEnvironment

Parameters:

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

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isShowSnapTipBackground

public boolean isShowSnapTipBackground()
                                throws IOException,
                                       AutomationException

Toggles snap tip background on/off.

Remarks

The snapping tip uses XOR to display the snapping tip text. If you are snapping against an orthophoto or other imagery data source, the text may be difficult to see. By setting ShowTipBackground to true, a solid color is displayed so the snap tip text may be clearly seen.

This is an application-level setting, and is false by default.

Product Availability

Available with ArcGIS Engine.

Specified by:

isShowSnapTipBackground in interface ISnappingEnvironment

Returns:

The show

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setShowSnapTipBackground

public void setShowSnapTipBackground(boolean show)
                              throws IOException,
                                     AutomationException

Toggles snap tip background on/off.

Product Availability

Available with ArcGIS Engine.

Specified by:

setShowSnapTipBackground in interface ISnappingEnvironment

Parameters:

show - The show (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getSnapSymbolColor

public IColor getSnapSymbolColor()
                          throws IOException,
                                 AutomationException

The color of the snapping symbol.

Remarks

Specifies the color of the snapping symbol displayed when a valid snap result was found. The default color is black. Changing the color to a high contrast value such as yellow or cyan is particularly useful in situations where you are working against imagery or other layers symbolized using grayscale. The snap symbol itself cannot be altered.

Product Availability

Available with ArcGIS Engine.

Specified by:

getSnapSymbolColor in interface ISnappingEnvironment

Returns:

A reference to a com.esri.arcgis.display.IColor

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setSnapSymbolColorByRef

public void setSnapSymbolColorByRef(IColor color)
                             throws IOException,
                                    AutomationException

The color of the snapping symbol.

Product Availability

Available with ArcGIS Engine.

Specified by:

setSnapSymbolColorByRef in interface ISnappingEnvironment

Parameters:

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

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setTolerance

public void setTolerance(int tol)
                  throws IOException,
                         AutomationException

Sets the snap tolerance in pixels.

Product Availability

Available with ArcGIS Engine.

Specified by:

setTolerance in interface ISnappingEnvironment

Parameters:

tol - The tol (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getTolerance

public int getTolerance()
                 throws IOException,
                        AutomationException

Sets the snap tolerance in pixels.

Remarks

The tolerance defines the distance used to determine whether a given snapping type is satisfied. The tolerance is defined in pixels; the default is 7 pixels.

The tolerance is an application-level setting.

Product Availability

Available with ArcGIS Engine.

Specified by:

getTolerance in interface ISnappingEnvironment

Returns:

The tol

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getPointSnapper

public IPointSnapper getPointSnapper()
                              throws IOException,
                                     AutomationException

Returns the point snapper.

Remarks

The PointSnapper property returns a reference to the engine that is responsible for performing snapping operations.

Product Availability

Available with ArcGIS Engine.

Specified by:

getPointSnapper in interface ISnappingEnvironment

Returns:

A reference to a com.esri.arcgis.controls.IPointSnapper

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setPointSnapperByRef

public void setPointSnapperByRef(IPointSnapper snapper)
                          throws IOException,
                                 AutomationException

Returns the point snapper.

Product Availability

Available with ArcGIS Engine.

Specified by:

setPointSnapperByRef in interface ISnappingEnvironment

Parameters:

snapper - A reference to a com.esri.arcgis.controls.IPointSnapper (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isIgnoreIMSLayers

public boolean isIgnoreIMSLayers()
                          throws IOException,
                                 AutomationException

Ignores layers with slow response times.

Remarks

The IgnoreIMSLayers setting excludes IMS feature service layers from participating in the snapping cache. In most cases, the time required to build the snapping cache against IMS layers is not fast enough, so they are automatically excluded from the snapping cache. In certain situations, the IMS layer response time is reasonable (such as an IMS service on an intranet) setting this property to false will include these layers in the snapping cache. IgnoreIMSLayers is set to true by default.

Product Availability

Available with ArcGIS Engine.

Specified by:

isIgnoreIMSLayers in interface ISnappingEnvironment

Returns:

The flag

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setIgnoreIMSLayers

public void setIgnoreIMSLayers(boolean flag)
                        throws IOException,
                               AutomationException

Ignores layers with slow response times.

Product Availability

Available with ArcGIS Engine.

Specified by:

setIgnoreIMSLayers in interface ISnappingEnvironment

Parameters:

flag - The flag (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getName

public String getName()
               throws IOException,
                      AutomationException

The name of the extension.

Specified by:

getName in interface IExtension

Returns:

The extensionName

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

startup

public void startup(Object initializationData)
             throws IOException,
                    AutomationException

Starts up the extension with the given initialization data.

Specified by:

startup in interface IExtension

Parameters:

initializationData - A Variant (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

shutdown

public void shutdown()
              throws IOException,
                     AutomationException

Shuts down the extension.

Specified by:

shutdown in interface IExtension

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.