Module com.esri.arcgisruntime

Package com.esri.arcgisruntime.mapping.view.geometryeditor

Class GeometryEditor

java.lang.Object

com.esri.arcgisruntime.mapping.view.geometryeditor.GeometryEditor

public final class GeometryEditor
extends Object

Allows you to create new geometries, and change existing geometries, by interacting with a MapView.

To use a GeometryEditor:

• Set the MapView.geometryEditorProperty().
• Call one of the start methods.
  • To interactively create new geometries from scratch, call start(GeometryType) passing in a GeometryType to determine the type of geometry created.
  • For geometry editing workflows, pass an existing Geometry into start(Geometry).
• You can then edit the geometry directly on the map view using mouse or touch gestures.
  • The toolProperty() determines how you draw on the map to define the new geometry, for example by adding individual vertices or with a freehand gesture. The default tool is VertexTool.
  • If you passed in an initial geometry, it is displayed in the view, and you can interact with the geometry to make changes.
• Call stop() to return the geometry and prevent the geometry editor from processing any more interactions.
  • Geometries are immutable, therefore a new Geometry object reflecting the updates is returned from geometryProperty() and GeometryEditor.stop() each time.

When started (startedProperty() is true), you can interact with the different GeometryEditorElement objects that compose the representation of the geometry in the map view. Depending on what is selected, different types of GeometryEditorElement are returned from the selectedElementProperty(). Tap to select the different elements and drag to move them. Tap multiple times on an element to select the different types of GeometryEditorElement representing vertices, parts, and the entire geometry. You can control which interactions are possible by changing the InteractionConfiguration of the current tool. For example, you can change the types of element you can tap to select, and whether they can create new vertices or parts by tapping or dragging on the map. Programmatic changes to the geometryProperty() or selectedElementProperty() (for example selectVertex(long, long) or moveSelectedElement(Point)) are not affected by the settings in InteractionConfiguration. The type of the current GeometryEditor.toolProperty() determines what type of interactions will add new vertices and parts to the geometry.

Change the appearance of the geometry by using the GeometryEditorStyle of the current GeometryEditor.toolProperty() tool - for example to match the symbology used by the graphic or feature being edited.

Programmatic editing methods are also provided so you can augment your interactive geometry editing to support specific user requirements. For example:

• Use insertVertex(Point) to add a subsequent vertex based on a GPS location from LocationDisplay.
• Use deleteSelectedElement() to delete the current selected element.
• Use moveSelectedElement(Point) to move the currently selected GeometryEditorElement to a specific Point, or moveSelectedElement(double, double) to nudge it in a specific direction.
• Use replaceGeometry(Geometry) to take the current geometry, apply an operation such as a union or intersect by using GeometryEngine, and then replace the current geometry with the result so you can continue to edit as required.
• Use undo() and redo() to undo and redo individual interactive or programmatic edits.

Use change listeners on geometryProperty() and selectedElementProperty() to be notified when a user interaction or API call has changed the GeometryEditor.selectedElementProperty() or GeometryEditor.geometryProperty().

Changing the geometry state can also change canUndoProperty().

Since:

200.1.0

Property Summary

Properties

Type	Property	Description
ReadOnlyBooleanProperty	canRedo	True if there are actions that can be redone on the geometry, false otherwise.
ReadOnlyBooleanProperty	canUndo	True if there are actions that can be undone on the geometry, false otherwise.
ReadOnlyObjectProperty<Geometry>	geometry	The current geometry, updated as you interact with the view.
ReadOnlyObjectProperty<GeometryEditorElement>	selectedElement	The element that is currently selected in the GeometryEditor, or null if nothing is selected.
ReadOnlyBooleanProperty	started	True if an editing session is active, false otherwise.
ObjectProperty<GeometryEditorTool>	tool	The tool defining how you interact with the view to create and edit the geometry.
BooleanProperty	visible	True if the geometry is visible in the view, false otherwise.

Constructor Summary

Constructors

Constructor	Description
GeometryEditor()	Creates a default GeometryEditor.

Method Summary

Modifier and Type	Method	Description
ReadOnlyBooleanProperty	canRedoProperty()	True if there are actions that can be redone on the geometry, false otherwise.
ReadOnlyBooleanProperty	canUndoProperty()	True if there are actions that can be undone on the geometry, false otherwise.
void	clearGeometry()	Clears the current geometry being edited.
void	clearSelection()	Clears the current selection.
void	deleteSelectedElement()	Deletes the selected element from the current geometry.
ReadOnlyObjectProperty<Geometry>	geometryProperty()	The current geometry, updated as you interact with the view.
boolean	getCanRedo()	Gets the value of the property canRedo.
boolean	getCanUndo()	Gets the value of the property canUndo.
Geometry	getGeometry()	Gets the value of the property geometry.
GeometryEditorElement	getSelectedElement()	Gets the value of the property selectedElement.
GeometryEditorTool	getTool()	Gets the value of the property tool.
void	insertVertex(Point point)	Creates a new vertex at the specified location and inserts it after the currently selected element, or appends the point if there is nothing selected.
boolean	isStarted()	Gets the value of the property started.
boolean	isVisible()	Gets the value of the property visible.
void	moveSelectedElement(double deltaX, double deltaY)	Moves the selected element by the specified distances along the x-axis and y-axis.
void	moveSelectedElement(Point newPoint)	Moves the selected element to the specified location.
void	redo()	Redoes the last action undone on the geometry.
void	replaceGeometry(Geometry geometry)	Replaces the current geometry with the specified geometry.
void	rotateSelectedElement(double angle, Point origin)	Rotates the selectedElementProperty() by the specified angle.
void	scaleSelectedElement(double scaleX, double scaleY, Point origin)	Scales the selected element by the specified factors.
ReadOnlyObjectProperty<GeometryEditorElement>	selectedElementProperty()	The element that is currently selected in the GeometryEditor, or null if nothing is selected.
void	selectGeometry()	Selects the entire geometry.
void	selectMidVertex(long partIndex, long segmentIndex)	Selects the mid-vertex with the specified indices.
void	selectPart(long partIndex)	Selects the part with the specified index.
void	selectVertex(long partIndex, long vertexIndex)	Selects the vertex with the specified indices.
void	setTool(GeometryEditorTool tool)	Sets the value of the property tool.
void	setVisible(boolean isVisible)	Sets the value of the property visible.
void	start(Geometry initialGeometry)	Starts a geometry editing session based on the specified geometry.
void	start(GeometryType geometryType)	Starts a geometry editing session with an empty geometry of the specified GeometryType.
ReadOnlyBooleanProperty	startedProperty()	True if an editing session is active, false otherwise.
Geometry	stop()	Stops the editing session by making the GeometryEditor no longer respond to user interaction and clears the geometry.
ObjectProperty<GeometryEditorTool>	toolProperty()	The tool defining how you interact with the view to create and edit the geometry.
void	undo()	Undoes the last action on the geometry.
BooleanProperty	visibleProperty()	True if the geometry is visible in the view, false otherwise.

Methods inherited from class java.lang.Object

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

Property Details

canRedo

public ReadOnlyBooleanProperty canRedoProperty

True if there are actions that can be redone on the geometry, false otherwise.

This applies to both programmatic and interactive changes to the geometry and is useful for enabling or disabling a UI control for redo actions.

The value of the canRedoProperty() changes when:

• an initial action that can be redone is performed in the GeometryEditor, or
• the last remaining action that can be redone was redone.

Since:

200.1.0

See Also:

• getCanRedo()

canUndo

public ReadOnlyBooleanProperty canUndoProperty

True if there are actions that can be undone on the geometry, false otherwise.

This applies to both programmatic and interactive changes to the geometry and is useful for enabling or disabling a UI control for undo actions.

The value of the canUndoProperty() changes when:

• an initial action that can be undone is performed in the GeometryEditor, or
• the last remaining action that can be undone was undone.

Since:

200.1.0

See Also:

• getCanUndo()

geometry

public ReadOnlyObjectProperty<Geometry> geometryProperty

The current geometry, updated as you interact with the view.

The geometry returned depends on the state of the GeometryEditor:

• Returns null while startedProperty() is false.
• Returns an empty geometry (Geometry.isEmpty() is true) immediately after the GeometryEditor was started using start(GeometryType).
• Returns the input geometry immediately after the GeometryEditor was started using start(Geometry).
• Returns the current geometry while the GeometryEditor is in use (startedProperty() is true).

The geometry is returned in the spatial reference of the associated MapView, if one is set. If there is no associated MapView, and the GeometryEditor was started by passing a geometry parameter to a start method, then the spatial reference of that geometry is used. If neither of these cases is true, the spatial reference of the geometry is null.

The value of the geometryProperty() changes when:

• Starting or stopping the geometry editor - for example using start(GeometryType) or stop()
• Performing programmatic edits - for example using insertVertex(Point) or deleteSelectedElement()
• Performing interactive edits - for example adding or moving a vertex
• Undoing or redoing edits - using undo() or redo().

Since:

200.1.0

See Also:

• getGeometry()

started

public ReadOnlyBooleanProperty startedProperty

True if an editing session is active, false otherwise.

When true, interactions with the view can affect the state of the geometryProperty() or selectedElementProperty().

Since:

200.1.0

See Also:

• isStarted()

visible

public BooleanProperty visibleProperty

True if the geometry is visible in the view, false otherwise.

Since:

200.1.0

See Also:

• isVisible()
• setVisible(boolean)

selectedElement

public ReadOnlyObjectProperty<GeometryEditorElement> selectedElementProperty

The element that is currently selected in the GeometryEditor, or null if nothing is selected.

Clicking or tapping on the different visible elements of a geometry in a view allows you to select and unselect them. This property returns a different type of GeometryEditorElement depending on what is selected - a vertex (GeometryEditorVertex), a mid-vertex (GeometryEditorMidVertex), a part of a polygon or polyline (GeometryEditorPart), or the entire geometry (GeometryEditorGeometry). You can change which selection interactions are allowed by using the InteractionConfiguration of the tool.

You can also programmatically select specific vertices (selectVertex(long, long)), mid-vertices (selectMidVertex(long, long)), parts of polygons or polylines (selectPart(long)), or the entire geometry (selectGeometry()). You can clear the selection using clearSelection().

The value of selectedElementProperty() changes when:

• Performing programmatic selection - for example using selectGeometry() or selectVertex(long, long)
• Performing interactive selection - for example selecting or unselecting a GeometryEditorElement
• The location of the selected element changes - for example moving the selected element programmatically or interactively
• Performing edits - for example inserting a vertex interactively or deleting the selected element programmatically

It may also change when:

• Undoing or redoing edits - using undo() or redo()
• Stopping the geometry editor using stop().

Since:

200.1.0

See Also:

• getSelectedElement()

tool

public ObjectProperty<GeometryEditorTool> toolProperty

The tool defining how you interact with the view to create and edit the geometry.

The default value is a VertexTool with all interactive operations enabled, providing a common way of editing points, multipoints, polygons, and polylines.

The tool can be replaced while a GeometryEditor is started (isStarted() = true), enabling a combination of tools to be used to edit a geometry.

Attempting to set the value to null will throw a NullPointerException.

Since:

200.1.0

See Also:

• getTool()
• setTool(GeometryEditorTool)

Constructor Details

GeometryEditor

public GeometryEditor()

Creates a default GeometryEditor.

Since:

200.1.0

Method Details

canRedoProperty

public ReadOnlyBooleanProperty canRedoProperty()

True if there are actions that can be redone on the geometry, false otherwise.

This applies to both programmatic and interactive changes to the geometry and is useful for enabling or disabling a UI control for redo actions.

The value of the canRedoProperty() changes when:

• an initial action that can be redone is performed in the GeometryEditor, or
• the last remaining action that can be redone was redone.

Since:

200.1.0

See Also:

• getCanRedo()

getCanRedo

public boolean getCanRedo()

Gets the value of the property canRedo.

Property description:

True if there are actions that can be redone on the geometry, false otherwise.

This applies to both programmatic and interactive changes to the geometry and is useful for enabling or disabling a UI control for redo actions.

The value of the canRedoProperty() changes when:

• an initial action that can be redone is performed in the GeometryEditor, or
• the last remaining action that can be redone was redone.

Since:

200.1.0

canUndoProperty

public ReadOnlyBooleanProperty canUndoProperty()

True if there are actions that can be undone on the geometry, false otherwise.

This applies to both programmatic and interactive changes to the geometry and is useful for enabling or disabling a UI control for undo actions.

The value of the canUndoProperty() changes when:

• an initial action that can be undone is performed in the GeometryEditor, or
• the last remaining action that can be undone was undone.

Since:

200.1.0

See Also:

• getCanUndo()

getCanUndo

public boolean getCanUndo()

Gets the value of the property canUndo.

Property description:

True if there are actions that can be undone on the geometry, false otherwise.

This applies to both programmatic and interactive changes to the geometry and is useful for enabling or disabling a UI control for undo actions.

The value of the canUndoProperty() changes when:

• an initial action that can be undone is performed in the GeometryEditor, or
• the last remaining action that can be undone was undone.

Since:

200.1.0

geometryProperty

public ReadOnlyObjectProperty<Geometry> geometryProperty()

The current geometry, updated as you interact with the view.

The geometry returned depends on the state of the GeometryEditor:

• Returns null while startedProperty() is false.
• Returns an empty geometry (Geometry.isEmpty() is true) immediately after the GeometryEditor was started using start(GeometryType).
• Returns the input geometry immediately after the GeometryEditor was started using start(Geometry).
• Returns the current geometry while the GeometryEditor is in use (startedProperty() is true).

The geometry is returned in the spatial reference of the associated MapView, if one is set. If there is no associated MapView, and the GeometryEditor was started by passing a geometry parameter to a start method, then the spatial reference of that geometry is used. If neither of these cases is true, the spatial reference of the geometry is null.

The value of the geometryProperty() changes when:

• Starting or stopping the geometry editor - for example using start(GeometryType) or stop()
• Performing programmatic edits - for example using insertVertex(Point) or deleteSelectedElement()
• Performing interactive edits - for example adding or moving a vertex
• Undoing or redoing edits - using undo() or redo().

Since:

200.1.0

See Also:

• getGeometry()

getGeometry

public Geometry getGeometry()

Gets the value of the property geometry.

Property description:

The current geometry, updated as you interact with the view.

The geometry returned depends on the state of the GeometryEditor:

• Returns null while startedProperty() is false.
• Returns an empty geometry (Geometry.isEmpty() is true) immediately after the GeometryEditor was started using start(GeometryType).
• Returns the input geometry immediately after the GeometryEditor was started using start(Geometry).
• Returns the current geometry while the GeometryEditor is in use (startedProperty() is true).

The geometry is returned in the spatial reference of the associated MapView, if one is set. If there is no associated MapView, and the GeometryEditor was started by passing a geometry parameter to a start method, then the spatial reference of that geometry is used. If neither of these cases is true, the spatial reference of the geometry is null.

The value of the geometryProperty() changes when:

• Starting or stopping the geometry editor - for example using start(GeometryType) or stop()
• Performing programmatic edits - for example using insertVertex(Point) or deleteSelectedElement()
• Performing interactive edits - for example adding or moving a vertex
• Undoing or redoing edits - using undo() or redo().

Since:

200.1.0

startedProperty

public ReadOnlyBooleanProperty startedProperty()

True if an editing session is active, false otherwise.

When true, interactions with the view can affect the state of the geometryProperty() or selectedElementProperty().

Since:

200.1.0

See Also:

• isStarted()

isStarted

public boolean isStarted()

Gets the value of the property started.

Property description:

True if an editing session is active, false otherwise.

When true, interactions with the view can affect the state of the geometryProperty() or selectedElementProperty().

Since:

200.1.0

visibleProperty

public BooleanProperty visibleProperty()

True if the geometry is visible in the view, false otherwise.

Since:

200.1.0

See Also:

• isVisible()
• setVisible(boolean)

isVisible

public boolean isVisible()

Gets the value of the property visible.

Property description:

True if the geometry is visible in the view, false otherwise.

Since:

200.1.0

setVisible

public void setVisible(boolean isVisible)

Sets the value of the property visible.

Property description:

True if the geometry is visible in the view, false otherwise.

Since:

200.1.0

selectedElementProperty

public ReadOnlyObjectProperty<GeometryEditorElement> selectedElementProperty()

The element that is currently selected in the GeometryEditor, or null if nothing is selected.

Clicking or tapping on the different visible elements of a geometry in a view allows you to select and unselect them. This property returns a different type of GeometryEditorElement depending on what is selected - a vertex (GeometryEditorVertex), a mid-vertex (GeometryEditorMidVertex), a part of a polygon or polyline (GeometryEditorPart), or the entire geometry (GeometryEditorGeometry). You can change which selection interactions are allowed by using the InteractionConfiguration of the tool.

You can also programmatically select specific vertices (selectVertex(long, long)), mid-vertices (selectMidVertex(long, long)), parts of polygons or polylines (selectPart(long)), or the entire geometry (selectGeometry()). You can clear the selection using clearSelection().

The value of selectedElementProperty() changes when:

• Performing programmatic selection - for example using selectGeometry() or selectVertex(long, long)
• Performing interactive selection - for example selecting or unselecting a GeometryEditorElement
• The location of the selected element changes - for example moving the selected element programmatically or interactively
• Performing edits - for example inserting a vertex interactively or deleting the selected element programmatically

It may also change when:

• Undoing or redoing edits - using undo() or redo()
• Stopping the geometry editor using stop().

Since:

200.1.0

See Also:

• getSelectedElement()

getSelectedElement

public GeometryEditorElement getSelectedElement()

Gets the value of the property selectedElement.

Property description:

The element that is currently selected in the GeometryEditor, or null if nothing is selected.

Clicking or tapping on the different visible elements of a geometry in a view allows you to select and unselect them. This property returns a different type of GeometryEditorElement depending on what is selected - a vertex (GeometryEditorVertex), a mid-vertex (GeometryEditorMidVertex), a part of a polygon or polyline (GeometryEditorPart), or the entire geometry (GeometryEditorGeometry). You can change which selection interactions are allowed by using the InteractionConfiguration of the tool.

You can also programmatically select specific vertices (selectVertex(long, long)), mid-vertices (selectMidVertex(long, long)), parts of polygons or polylines (selectPart(long)), or the entire geometry (selectGeometry()). You can clear the selection using clearSelection().

The value of selectedElementProperty() changes when:

• Performing programmatic selection - for example using selectGeometry() or selectVertex(long, long)
• Performing interactive selection - for example selecting or unselecting a GeometryEditorElement
• The location of the selected element changes - for example moving the selected element programmatically or interactively
• Performing edits - for example inserting a vertex interactively or deleting the selected element programmatically

It may also change when:

• Undoing or redoing edits - using undo() or redo()
• Stopping the geometry editor using stop().

Since:

200.1.0

toolProperty

public ObjectProperty<GeometryEditorTool> toolProperty()

The tool defining how you interact with the view to create and edit the geometry.

The default value is a VertexTool with all interactive operations enabled, providing a common way of editing points, multipoints, polygons, and polylines.

The tool can be replaced while a GeometryEditor is started (isStarted() = true), enabling a combination of tools to be used to edit a geometry.

Attempting to set the value to null will throw a NullPointerException.

Since:

200.1.0

See Also:

• getTool()
• setTool(GeometryEditorTool)

getTool

public GeometryEditorTool getTool()

Gets the value of the property tool.

Property description:

The tool defining how you interact with the view to create and edit the geometry.

The default value is a VertexTool with all interactive operations enabled, providing a common way of editing points, multipoints, polygons, and polylines.

The tool can be replaced while a GeometryEditor is started (isStarted() = true), enabling a combination of tools to be used to edit a geometry.

Attempting to set the value to null will throw a NullPointerException.

Since:

200.1.0

setTool

public void setTool(GeometryEditorTool tool)

Sets the value of the property tool.

Property description:

The tool defining how you interact with the view to create and edit the geometry.

The default value is a VertexTool with all interactive operations enabled, providing a common way of editing points, multipoints, polygons, and polylines.

The tool can be replaced while a GeometryEditor is started (isStarted() = true), enabling a combination of tools to be used to edit a geometry.

Attempting to set the value to null will throw a NullPointerException.

Since:

200.1.0

clearGeometry

public void clearGeometry()

Clears the current geometry being edited.

The GeometryType is maintained - to edit a different type of geometry, restart the GeometryEditor with the required type.

Since:

200.1.0

See Also:

• clearSelection()

clearSelection

public void clearSelection()

Clears the current selection.

This sets selectedElementProperty() to null. It does not change the geometryProperty().

Since:

200.1.0

See Also:

• clearGeometry()

deleteSelectedElement

public void deleteSelectedElement()

Deletes the selected element from the current geometry.

To clear the selection, but leave the state of the geometry unchanged, call clearSelection() instead.

Since:

200.1.0

See Also:

• selectedElementProperty()
• InteractionConfiguration.isAllowDeletingSelectedElement()

insertVertex

public void insertVertex(Point point)

Creates a new vertex at the specified location and inserts it after the currently selected element, or appends the point if there is nothing selected.

If the geometry is empty (Geometry.isEmpty() is true), the given point is added as the initial vertex, and then selected. If nothing is selected (selectedElementProperty() is null), the point is appended to the end of the geometry, and then selected. If the selected element is the first vertex in a part of a Multipart, the given point is inserted before the currently selected vertex, and then selected.

If the geometry is a non-empty Point, this method replaces the existing point with the given point and selects it.

Parameters:

point - the location of the new vertex

Throws:

NullPointerException - if point is null

Since:

200.1.0

See Also:

• InteractionConfiguration.allowVertexCreationProperty()

moveSelectedElement

public void moveSelectedElement(double deltaX,
 double deltaY)

Moves the selected element by the specified distances along the x-axis and y-axis.

Parameters:

deltaX - the distance to move the selected element along the x-axis, in the units of the geometry spatial reference.

deltaY - the distance to move the selected element along the y-axis, in the units of the geometry spatial reference.

Since:

200.1.0

See Also:

• InteractionConfiguration.allowMovingSelectedElementProperty()
• moveSelectedElement(Point)
• rotateSelectedElement(double, Point)
• scaleSelectedElement(double, double, Point)

moveSelectedElement

public void moveSelectedElement(Point newPoint)

Moves the selected element to the specified location.

If selectedElementProperty() is a GeometryEditorVertex, then the location of the vertex is moved to the given point. If the GeometryEditor.selectedElementProperty() is any other type of GeometryEditorElement, then the center of the element is moved to the given point.

Parameters:

newPoint - the new location for the selected element

Throws:

NullPointerException - if newPoint is null

Since:

200.1.0

See Also:

• InteractionConfiguration.allowMovingSelectedElementProperty()

redo

public void redo()

Redoes the last action undone on the geometry.

Since:

200.1.0

See Also:

• canRedoProperty()
• undo()

replaceGeometry

public void replaceGeometry(Geometry geometry)

Replaces the current geometry with the specified geometry.

Use this method to make changes to the geometry that are not directly supported using other GeometryEditor methods. For example, to start a new part in a Polygon or Polyline geometry, get the current geometry, use a MultipartBuilder to add the required part, and then pass the updated GeometryBuilder.toGeometry() to this method.

Parameters:

geometry - the new geometry to replace the current geometry. The GeometryType of these geometries must match.

Throws:

NullPointerException - if geometry is null

Since:

200.1.0

rotateSelectedElement

public void rotateSelectedElement(double angle,
 Point origin)

Rotates the selectedElementProperty() by the specified angle.

The angle of rotation is used in the form of the modulo of 360 degrees; for example rotating by 540 degrees is equivalent to rotating by 180 degrees. A positive value corresponds to a counterclockwise rotation.

If the origin Point has a different SpatialReference than the geometryProperty(), the point will be reprojected before the geometry is rotated, using the default transformation.

If GeometryEditor.selectedElementProperty() is a GeometryEditorVertex, or a GeometryEditorGeometry of type Point, and the origin parameter is null (or is at the same location as the selected element), then rotating the selected element has no effect.

Parameters:

angle - the angle by which to rotate the selected element, counterclockwise, in degrees

origin - the center of rotation. If null, the center of the extent of the GeometryEditor.selectedElementProperty() is used.

Since:

200.2.0

See Also:

• moveSelectedElement(double, double)
• moveSelectedElement(Point)
• scaleSelectedElement(double, double, Point)
• InteractionConfiguration.allowRotatingSelectedElementProperty()
• GeometryEngine.rotate(Geometry, double, Point)

scaleSelectedElement

public void scaleSelectedElement(double scaleX,
 double scaleY,
 Point origin)

Scales the selected element by the specified factors.

If the origin Point has a different SpatialReference than the geometryProperty(), the point will be reprojected before the geometry is rotated, using the default transformation.

Positive scale factors greater than 1 increase the size of the GeometryEditor.geometryProperty(), and positive factors between 0 and 1 reduce the size of the geometry. Negative scale factors produce a geometry reflected across the axes of the origin point. Negative factors less than -1 both reflect and increase the size of the geometry, and negative factors between -1 and 0 both reflect and reduce the size of the geometry.

Parameters:

scaleX - the scale factor along the x-axis. It can be positive or negative. It cannot be 0, or a non-numeric value.

scaleY - the scale factor along the y-axis. It can be positive or negative. It cannot be 0, or a non-numeric value.

origin - the point relative to which the geometry will be scaled. If null, or Geometry.isEmpty() is true, the center of the extent of the selectedElementProperty() is used.

Since:

200.2.0

See Also:

• moveSelectedElement(double, double)
• moveSelectedElement(Point)
• rotateSelectedElement(double, Point)
• InteractionConfiguration.allowScalingSelectedElementProperty()
• GeometryEngine.scale(Geometry, double, double, Point)

selectGeometry

public void selectGeometry()

Selects the entire geometry.

When the entire geometry is selected it can be edited interactively and programmatically. For example you can move the entire geometry interactively by dragging, or call moveSelectedElement(Point) or moveSelectedElement(double, double) to move it programmatically.

When the entire geometry is selected, the GeometryEditorGeometry returned from the selectedElementProperty() has a geometry equal to geometryProperty(). If the geometry is a Point, then a GeometryEditorVertex is returned from the selectedElementProperty() instead, which is equivalent to the entire geometry and provides immediate access to the x,y coordinates of the selected point geometry.

Since:

200.1.0

See Also:

• InteractionConfiguration.allowGeometrySelectionProperty()
• clearSelection()
• selectVertex(long, long)
• selectMidVertex(long, long)
• selectPart(long)

selectMidVertex

public void selectMidVertex(long partIndex,
 long segmentIndex)

Selects the mid-vertex with the specified indices.

Mid-vertices do not exist in the geometry. They exist only in the display to serve as a visual cue that new vertices can be inserted between existing vertices. Since they do not exist in the geometry, mid-vertices cannot be programmatically moved or deleted. They can be used to insert a new vertex interactively.

When a mid-vertex is selected, a GeometryEditorMidVertex is returned from the selectedElementProperty().

Parameters:

partIndex - the index of the part in the geometry editor's Multipart geometry that contains the mid-vertex to be selected. Use a value of 0 for non-multipart geometry types - Point and Multipoint.

segmentIndex - the index of segment that the mid-vertex to be selected lies on, within the given part of the geometry editor's Multipart geometry, or within the Multipoint geometry. Use a value of 0 for Point geometries.

Since:

200.1.0

See Also:

• InteractionConfiguration.allowMidVertexSelectionProperty()
• clearSelection()
• selectVertex(long, long)
• selectMidVertex(long, long)
• selectGeometry()

selectPart

public void selectPart(long partIndex)

Selects the part with the specified index.

When a part of a polygon or polyline geometry is selected, a GeometryEditorPart is returned from the selectedElementProperty(). If the polygon or polyline has only one part, then a GeometryEditorGeometry with a shape equivalent to the entire geometry is returned as the selected element instead, which provides immediate access to the extent (Geometry.getExtent()) and can be directly used in other geometry operations. If the current geometry is a Point or Multipoint, the entire geometry is selected.

When a part of a Polygon or Polyline (Multipart) geometry is selected it can be edited separately from the other parts of the geometry. For example, you can move only the selected part interactively by dragging, or call moveSelectedElement(Point) or moveSelectedElement(double, double) to move only the selected part programmatically.

Parameters:

partIndex - the index of the part in the geometry editor's Multipart geometry to be selected. Use a value of 0 for Multipoint geometries.

Since:

200.1.0

See Also:

• InteractionConfiguration.allowPartSelectionProperty()
• clearSelection()
• selectVertex(long, long)
• selectMidVertex(long, long)
• selectGeometry()

selectVertex

public void selectVertex(long partIndex,
 long vertexIndex)

Selects the vertex with the specified indices.

When a vertex is selected it can be edited while all other vertices of the geometry are unchanged. For example, you can move only the selected vertex interactively by dragging, or call moveSelectedElement(Point) or moveSelectedElement(double, double) to move the selected vertex programmatically.

When a vertex is selected, the selectedElementProperty() is a GeometryEditorVertex.

Parameters:

partIndex - the index of the part that contains the vertex (point) to be selected, within the geometry editor's Multipart geometry. Use a value of 0 for Point and Multipoint (non-multipart geometries).

vertexIndex - the index of the vertex (point) to be selected, within the given part of the geometry editor's Multipart geometry, or within the Multipoint geometry. Use a value of 0 for Point geometries.

Since:

200.1.0

See Also:

• InteractionConfiguration.allowVertexSelectionProperty()
• clearSelection()
• selectVertex(long, long)
• selectMidVertex(long, long)
• selectGeometry()

start

public void start(Geometry initialGeometry)

Starts a geometry editing session based on the specified geometry.

Use this method for data editing workflows, where you have an existing Geometry to be updated. After calling this method, the geometry is drawn in the map view, and interactions with the map view will select and edit the geometry, depending on the current toolProperty() and its InteractionConfiguration.

Parameters:

initialGeometry - the initial geometry to start the editing session with.

Throws:

NullPointerException - if initialGeometry is null

Since:

200.1.0

start

public void start(GeometryType geometryType)

Starts a geometry editing session with an empty geometry of the specified GeometryType.

Use this method for data creation workflows, where you know the GeometryType required but do not have an existing geometry to edit. After calling this method, nothing is drawn on the map view initially - user interactions on the map view will define and edit the geometry, depending on the current toolProperty().

GeometryEditor can be used to create Point, Multipoint, Polygon, and Polyline geometries - however FreehandTool, and ShapeTool are suitable for creating Polygon, and Polyline geometries only.

Parameters:

geometryType - the type of geometry to edit, must be one of: GeometryType.MULTIPOINT, GeometryType.POINT, GeometryType.POLYGON or GeometryType.POLYLINE.

Throws:

NullPointerException - if geometryType is null

Since:

200.1.0

stop

public Geometry stop()

Stops the editing session by making the GeometryEditor no longer respond to user interaction and clears the geometry.

Returns:

the final geometry before it is cleared. Null if the geometry editor is not started. Returns null if none.

Since:

200.1.0

See Also:

• geometryProperty()

undo

public void undo()

Undoes the last action on the geometry.

Since:

200.1.0

See Also:

• canUndoProperty()
• redo()