Package com.smartgwt.client.widgets.drawing

# Class DrawSector

java.lang.Object
com.google.gwt.user.client.ui.UIObject
com.google.gwt.user.client.ui.Widget
com.smartgwt.client.widgets.BaseWidget
com.smartgwt.client.widgets.drawing.DrawItem
com.smartgwt.client.widgets.drawing.DrawSector

All Implemented Interfaces:
  `HasAttachHandlers`, `HasHandlers`, `EventListener`, `HasVisibility`, `IsWidget`, `LogicalStructure`, `HasClickHandlers`, `HasDoubleClickHandlers`, `HasDragMoveHandlers`, `HasDragResizeMoveHandlers`, `HasDragResizeStartHandlers`, `HasDragResizeStopHandlers`, `HasDragStartHandlers`, `HasDragStopHandlers`, `HasDrawEndHandlers`, `HasDrawStartHandlers`, `HasMouseDownHandlers`, `HasMouseMoveHandlers`, `HasMouseOutHandlers`, `HasMouseOverHandlers`, `HasMouseUpHandlers`, `HasMovedHandlers`, `HasResizedHandlers`, `HasShowContextMenuHandlers`

public class DrawSector extends DrawItem
DrawItem subclass to render Pie Slices.

- ## Nested Class Summary

  ## Nested classes/interfaces inherited from class com.google.gwt.user.client.ui.UIObject

  `UIObject.DebugIdImpl, UIObject.DebugIdImplEnabled`

- ## Field Summary

  ### Fields inherited from class com.smartgwt.client.widgets.BaseWidget

  `config, configOnly, factoryCreated, factoryProperties, id, nativeObject, scClassName`

  ### Fields inherited from class com.google.gwt.user.client.ui.UIObject

  `DEBUG_ID_PREFIX`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `DrawSector()`
  `DrawSector(JavaScriptObject jsObj)`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `static void`
  `changeAutoChildDefaults(String autoChildName, Canvas defaults)`
  Changes the defaults for Canvas AutoChildren named `autoChildName`.
  `static void`
  `changeAutoChildDefaults(String autoChildName, DrawItem defaults)`
  Changes the defaults for DrawItem AutoChildren named `autoChildName`.
  `static void`
  `changeAutoChildDefaults(String autoChildName, FormItem defaults)`
  Changes the defaults for FormItem AutoChildren named `autoChildName`.
  `protected JavaScriptObject`
  `create()`
  `Point`
  `getArcMidpoint()`
  Calculates the coordinates of the midpoint of this DrawSector's circular arc.
  `static Point`
  `getArcMidpoint(double centerX, double centerY, double startAngle, double endAngle, double radius)`
  Calculates the midpoint coordinates of the circular arc of the sector defined by the given centerPoint, startAngle, endAngle, and radius.
  `Point`
  `getCenter()`
  Returns the sector's `centerPoint`.
  `Point`
  `getCenterPoint()`
  Center point of the sector
  `float`
  `getEndAngle()`
  Deprecated.
  `GwtFloatVsDouble`
  `double`
  `getEndAngleAsDouble()`
  End angle of the sector in degrees.
  `KnobType[]`
  `getKnobs()`
  DrawSector only supports the `KnobType.MOVE` knob type.
  `LogicalStructureObject`
  `getLogicalStructure()`
  Getter implementing the `LogicalStructure` interface, which supports Eclipse's logical structure debugging facility.
  `static DrawSector`
  `getOrCreateRef(JavaScriptObject jsObj)`
  `int`
  `getRadius()`
  Radius of the sector.
  `double`
  `getRadiusAsDouble()`
  Radius of the sector.
  `float`
  `getRotation()`
  Deprecated.
  `GwtFloatVsDouble`
  `double`
  `getRotationAsDouble()`
  Rotation in degrees about the `centerPoint` of the DrawSector.
  `boolean`
  `getShowTitleLabelBackground()`
  If the `titleLabel` is showing, should the `titleLabelBackground` be created and placed behind the `titleLabel`?
  `float`
  `getStartAngle()`
  Deprecated.
  `GwtFloatVsDouble`
  `double`
  `getStartAngleAsDouble()`
  Start angle of the sector in degrees.
  `void`
  `moveBy(int x, int y)`
  Move the DrawSector by the specified amounts.
  `DrawSector`
  `setCenterPoint(Point centerPoint)`
  Center point of the sector
  If this method is called after the component has been drawn/initialized: Change the center point for this sector.
  `static void`
  `setDefaultProperties(DrawSector drawSectorProperties)`
  Class level method to set the default properties of this class.
  `DrawSector`
  `setEndAngle(double endAngle)`
  End angle of the sector in degrees.
  `DrawSector`
  `setEndAngle(float endAngle)`
  Deprecated.
  `GwtFloatVsDouble`
  `DrawSector`
  `setKnobs(KnobType... knobs)`
  DrawSector only supports the `KnobType.MOVE` knob type.
  `LogicalStructureObject`
  `setLogicalStructure(DrawSectorLogicalStructure s)`
  Setter implementing the `LogicalStructure` interface, which supports Eclipse's logical structure debugging facility.
  `DrawSector`
  `setRadius(int radius)`
  Radius of the sector.
  `DrawSector`
  `setRotation(double rotation)`
  Rotation in degrees about the `centerPoint` of the DrawSector.
  `DrawSector`
  `setRotation(float rotation)`
  Deprecated.
  `GwtFloatVsDouble`
  `DrawSector`
  `setShowTitleLabelBackground(boolean showTitleLabelBackground)`
  If the `titleLabel` is showing, should the `titleLabelBackground` be created and placed behind the `titleLabel`?
  `DrawSector`
  `setStartAngle(double startAngle)`
  Start angle of the sector in degrees.
  `DrawSector`
  `setStartAngle(float startAngle)`
  Deprecated.
  `GwtFloatVsDouble`

  ### Methods inherited from class com.smartgwt.client.widgets.drawing.DrawItem

  `addClickHandler, addDoubleClickHandler, addDragMoveHandler, addDragResizeMoveHandler, addDragResizeStartHandler, addDragResizeStopHandler, addDragStartHandler, addDragStopHandler, addDrawEndHandler, addDrawStartHandler, addMouseDownHandler, addMouseMoveHandler, addMouseOutHandler, addMouseOverHandler, addMouseUpHandler, addMovedHandler, addResizedHandler, addShowContextMenuHandler, bringToFront, computeAngle, computeAngleAsDouble, dragResizeMove, draw, erase, getAttributeAsBoolean, getAttributeAsDate, getAttributeAsDouble, getAttributeAsElement, getAttributeAsFloat, getAttributeAsInt, getAttributeAsJavaScriptObject, getAttributeAsMap, getAttributeAsString, getBoundingBox, getBoundingBoxAsDouble, getById, getByJSObject, getCanDrag, getCanHover, getCanvasAutoChild, getContextMenu, getCornerResizeKnob, getCursor, getDestroyed, getDestroying, getDragStartDistance, getDrawGroup, getDrawItemAutoChild, getDrawPane, getDrawPaneAsString, getEditProxyConstructor, getEndArrow, getEndKnob, getEventOpaque, getFillColor, getFillGradient, getFillGradientAsString, getFillOpacity, getFormItemAutoChild, getHoverDelay, getHoverHTML, getKeepInParentRect, getLineCap, getLineColor, getLineOpacity, getLinePattern, getLineWidth, getMoveKnob, getMoveKnobOffset, getMoveKnobPoint, getPageLeft, getPageTop, getPaletteDefaults, getPrompt, getProportionalResizeModifiers, getProportionalResizing, getRef, getResizeBoundingBox, getResizeBoundingBoxAsDouble, getResizeKnobPoints, getResizeOutline, getResizeViaLocalTransformOnly, getRotateKnob, getScale, getShadow, getShowHover, getShowResizeOutline, getSideResizeKnob, getStartArrow, getStartKnob, getSvgString, getTitle, getTitleAutoFit, getTitleAutoFitMargin, getTitleAutoFitRotationMode, getTitleLabel, getTitleLabelBackground, getTitleLabelPadding, getTitleRotationMode, getTranslate, getUnderlyingGWTCanvas, getUseSimpleTransform, getXShearFactor, getYShearFactor, getZIndex, hide, hideAllKnobs, hideKnobs, hideKnobs, hover, isInBounds, isPointInPath, moveTo, resizeBy, resizeTo, rotateBy, rotateTo, scaleBy, scaleTo, sendToBack, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAutoChildConstructor, setAutoChildProperties, setAutoChildProperties, setAutoChildProperties, setAutoChildProperties, setAutoChildVisibility, setCanDrag, setCanHover, setCenterPoint, setContextMenu, setCursor, setDefaultProperties, setDragStartDistance, setDrawGroup, setDrawPane, setDrawPane, setEditProxyConstructor, setEndArrow, setEventOpaque, setFillColor, setFillGradient, setFillGradient, setFillOpacity, setHoverDelay, setKeepInParentRect, setKeepInParentRect, setLineCap, setLineColor, setLineOpacity, setLinePattern, setLineWidth, setLogicalStructure, setMoveKnobOffset, setMoveKnobPoint, setPrompt, setPropertyValue, setProportionalResizeModifiers, setProportionalResizing, setResizeKnobPoints, setResizeViaLocalTransformOnly, setScale, setShadow, setShapeData, setShowHover, setShowResizeOutline, setStartArrow, setTitle, setTitleAutoFit, setTitleAutoFitMargin, setTitleAutoFitRotationMode, setTitleLabelPadding, setTitleRotationMode, setTranslate, setUseSimpleTransform, setXShearFactor, setYShearFactor, setZIndex, show, showAllKnobs, showKnobs, showKnobs, supportsEndArrow, supportsStartArrow`

  ### Methods inherited from class com.smartgwt.client.widgets.BaseWidget

  `addDrawHandler, addDynamicProperty, addDynamicProperty, addDynamicProperty, addDynamicProperty, applyFactoryProperties, clearDynamicProperty, completeCreation, destroy, doAddHandler, doInit, doOnRender, equals, error, errorIfNotCreated, getAttribute, getAttributeAsDateArray, getAttributeAsFloatArray, getAttributeAsIntArray, getAttributeAsObject, getAttributeAsRecord, getAttributeAsStringArray, getAutoDraw, getClassName, getConfig, getDOM, getHandlerCount, getID, getInnerHTML, getJsObj, getOrCreateJsObj, getScClassName, hasAutoAssignedID, hasDynamicProperty, hashCode, initNativeObject, internalSetID, internalSetID, isConfigOnly, isCreated, isDrawn, isFactoryCreated, onBind, onDestroy, onDraw, onInit, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAutoDraw, setConfig, setConfigOnly, setDefaultProperties, setDragTracker, setFactoryCreated, setHtmlElement, setID, setJavaScriptObject, setLogicalStructure, setLogicalStructure, setNullProperty, setPosition, setProperty, setProperty, setProperty, setProperty, setProperty, setProperty, setProperty, setScClassName, toString`

  ### Methods inherited from class com.google.gwt.user.client.ui.Widget

  `addAttachHandler, addBitlessDomHandler, addDomHandler, addHandler, asWidget, asWidgetOrNull, createHandlerManager, delegateEvent, doAttachChildren, doDetachChildren, fireEvent, getLayoutData, getParent, isAttached, isOrWasAttached, onAttach, onBrowserEvent, onDetach, onLoad, onUnload, removeFromParent, setLayoutData, sinkEvents, unsinkEvents`

  ### Methods inherited from class com.google.gwt.user.client.ui.UIObject

  `addStyleDependentName, addStyleName, ensureDebugId, ensureDebugId, ensureDebugId, getAbsoluteLeft, getAbsoluteTop, getElement, getOffsetHeight, getOffsetWidth, getStyleElement, getStyleName, getStyleName, getStylePrimaryName, getStylePrimaryName, isVisible, isVisible, onEnsureDebugId, removeStyleDependentName, removeStyleName, resolvePotentialElement, setElement, setElement, setHeight, setPixelSize, setSize, setStyleDependentName, setStyleName, setStyleName, setStyleName, setStyleName, setStylePrimaryName, setStylePrimaryName, setVisible, setVisible, setWidth, sinkBitlessEvent`

  ### Methods inherited from class java.lang.Object

  `clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

  ### Methods inherited from interface com.google.gwt.event.shared.HasHandlers

  `fireEvent`

- ## Constructor Details

  - ### DrawSector

    public DrawSector()

  - ### DrawSector

    public DrawSector(JavaScriptObject jsObj)

- ## Method Details

  - ### getOrCreateRef

    public static DrawSector getOrCreateRef(JavaScriptObject jsObj)

  - ### changeAutoChildDefaults

    public static void changeAutoChildDefaults(String autoChildName, Canvas defaults)
    Changes the defaults for Canvas AutoChildren named `autoChildName`.
    Parameters:
      `autoChildName` - name of an AutoChild to customize the defaults for.
      `defaults` - Canvas defaults to apply. These defaults override any existing properties without destroying or wiping out non-overridden properties. For usage tips on this param, see `SGWTProperties`.
    See Also:
      - `AutoChildUsage`

  - ### changeAutoChildDefaults

    public static void changeAutoChildDefaults(String autoChildName, FormItem defaults)
    Changes the defaults for FormItem AutoChildren named `autoChildName`.
    Parameters:
      `autoChildName` - name of an AutoChild to customize the defaults for.
      `defaults` - FormItem defaults to apply. These defaults override any existing properties without destroying or wiping out non-overridden properties. For usage tips on this param, see `SGWTProperties`.
    See Also:
      - `AutoChildUsage`

  - ### changeAutoChildDefaults

    public static void changeAutoChildDefaults(String autoChildName, DrawItem defaults)
    Changes the defaults for DrawItem AutoChildren named `autoChildName`.
    Parameters:
      `autoChildName` - name of an AutoChild to customize the defaults for.
      `defaults` - DrawItem defaults to apply. These defaults override any existing properties without destroying or wiping out non-overridden properties. For usage tips on this param, see `SGWTProperties`.
    See Also:
      - `AutoChildUsage`

  - ### create

    protected JavaScriptObject create()
    Overrides:
      `create` in class `DrawItem`

  - ### setCenterPoint

    public DrawSector setCenterPoint(Point centerPoint)
    Center point of the sector
    If this method is called after the component has been drawn/initialized: Change the center point for this sector.
    Parameters:
      `centerPoint` - X coordinate of the center point (in the global coordinate system). Default value is [0,0]
    Returns:
      `DrawSector` instance, for chaining setter calls

  - ### getCenterPoint

    public Point getCenterPoint()
    Center point of the sector
    Returns:
      Current centerPoint value. Default value is [0,0]

  - ### setEndAngle

    public DrawSector setEndAngle(float endAngle) throws IllegalStateException
    Deprecated.
    `GwtFloatVsDouble`
    End angle of the sector in degrees. See `startAngle` for further details.
    Parameters:
      `endAngle` - New endAngle value. Default value is 20.0
    Returns:
      `DrawSector` instance, for chaining setter calls
    Throws:
      `IllegalStateException` - this property cannot be changed after the component has been created

  - ### getEndAngle

    public float getEndAngle()
    Deprecated.
    `GwtFloatVsDouble`
    End angle of the sector in degrees. See `startAngle` for further details.
    Returns:
      Current endAngle value. Default value is 20.0

  - ### setEndAngle

    public DrawSector setEndAngle(double endAngle) throws IllegalStateException
    End angle of the sector in degrees. See `startAngle` for further details.
    Parameters:
      `endAngle` - New endAngle value. Default value is 20.0
    Returns:
      `DrawSector` instance, for chaining setter calls
    Throws:
      `IllegalStateException` - this property cannot be changed after the component has been created

  - ### getEndAngleAsDouble

    public double getEndAngleAsDouble()
    End angle of the sector in degrees. See `startAngle` for further details.
    Returns:
      Current endAngle value. Default value is 20.0

  - ### setKnobs

    public DrawSector setKnobs(KnobType... knobs) throws IllegalStateException
    DrawSector only supports the `KnobType.MOVE` knob type.
    Overrides:
      `setKnobs` in class `DrawItem`
    Parameters:
      `knobs` - New knobs value. Default value is null
    Returns:
      `DrawSector` instance, for chaining setter calls
    Throws:
      `IllegalStateException` - this property cannot be changed after the component has been created
    See Also:
      - `DrawItem.setKnobs(com.smartgwt.client.types.KnobType...)`

  - ### getKnobs

    public KnobType[] getKnobs()
    DrawSector only supports the `KnobType.MOVE` knob type.
    Overrides:
      `getKnobs` in class `DrawItem`
    Returns:
      Current knobs value. Default value is null
    See Also:
      - `DrawItem.getKnobs()`

  - ### setRadius

    public DrawSector setRadius(int radius) throws IllegalStateException
    Radius of the sector.
    Parameters:
      `radius` - New radius value. Default value is 100
    Returns:
      `DrawSector` instance, for chaining setter calls
    Throws:
      `IllegalStateException` - this property cannot be changed after the component has been created

  - ### getRadius

    public int getRadius()
    Radius of the sector.
    Returns:
      Current radius value. Default value is 100

  - ### getRadiusAsDouble

    public double getRadiusAsDouble()
    Radius of the sector.
    Returns:
      Current radius value. Default value is 100

  - ### setRotation

    public DrawSector setRotation(float rotation) throws IllegalStateException
    Deprecated.
    `GwtFloatVsDouble`
    Rotation in degrees about the `centerPoint` of the DrawSector. The positive direction is clockwise.
    Overrides:
      `setRotation` in class `DrawItem`
    Parameters:
      `rotation` - New rotation value. Default value is 0.0
    Returns:
      `DrawSector` instance, for chaining setter calls
    Throws:
      `IllegalStateException` - this property cannot be changed after the component has been created

  - ### getRotation

    public float getRotation()
    Deprecated.
    `GwtFloatVsDouble`
    Rotation in degrees about the `centerPoint` of the DrawSector. The positive direction is clockwise.
    Overrides:
      `getRotation` in class `DrawItem`
    Returns:
      Current rotation value. Default value is 0.0

  - ### setRotation

    public DrawSector setRotation(double rotation) throws IllegalStateException
    Rotation in degrees about the `centerPoint` of the DrawSector. The positive direction is clockwise.
    Overrides:
      `setRotation` in class `DrawItem`
    Parameters:
      `rotation` - New rotation value. Default value is 0.0
    Returns:
      `DrawSector` instance, for chaining setter calls
    Throws:
      `IllegalStateException` - this property cannot be changed after the component has been created

  - ### getRotationAsDouble

    public double getRotationAsDouble()
    Rotation in degrees about the `centerPoint` of the DrawSector. The positive direction is clockwise.
    Overrides:
      `getRotationAsDouble` in class `DrawItem`
    Returns:
      Current rotation value. Default value is 0.0

  - ### setShowTitleLabelBackground

    public DrawSector setShowTitleLabelBackground(boolean showTitleLabelBackground) throws IllegalStateException
    If the `titleLabel` is showing, should the `titleLabelBackground` be created and placed behind the `titleLabel`?

    This defaults to true for `DrawSector`s and shapes that are not commonly filled (e.g. `DrawLine`s).

    Note : This is an advanced setting

    Overrides:
      `setShowTitleLabelBackground` in class `DrawItem`
    Parameters:
      `showTitleLabelBackground` - New showTitleLabelBackground value. Default value is true
    Returns:
      `DrawSector` instance, for chaining setter calls
    Throws:
      `IllegalStateException` - this property cannot be changed after the component has been created

  - ### getShowTitleLabelBackground

    public boolean getShowTitleLabelBackground()
    If the `titleLabel` is showing, should the `titleLabelBackground` be created and placed behind the `titleLabel`?

    This defaults to true for `DrawSector`s and shapes that are not commonly filled (e.g. `DrawLine`s).

    Overrides:
      `getShowTitleLabelBackground` in class `DrawItem`
    Returns:
      Current showTitleLabelBackground value. Default value is true

  - ### setStartAngle

    public DrawSector setStartAngle(float startAngle) throws IllegalStateException
    Deprecated.
    `GwtFloatVsDouble`
    Start angle of the sector in degrees. Default of 0.0 will create a sector that starts with a line from the `centerPoint` and extends horizontally to the right for the indicated `radius`, then sweeps clockwise toward the `endAngle`.

    Note that the startAngle may validly be a greater numeric value than the endAngle. The sector will always be drawn clockwise from startAngle to endAngle, so a sector with startAngle of 350 and endAngle of 10 would draw a 20-degree segment sticking out to the right of the centerPoint.

    Drawing a full circle: A developer may have a drawSector transcribe a full circle by using values of 360 or greater as the end point. For example a drawSector with startAngle set to 350 and endAngle set to 710 would transcribe a full circle which starts and ends on the same line (10 degrees above the horizontal, to the right of the centerPoint).

    Parameters:
      `startAngle` - New startAngle value. Default value is 0.0
    Returns:
      `DrawSector` instance, for chaining setter calls
    Throws:
      `IllegalStateException` - this property cannot be changed after the component has been created

  - ### getStartAngle

    public float getStartAngle()
    Deprecated.
    `GwtFloatVsDouble`
    Start angle of the sector in degrees. Default of 0.0 will create a sector that starts with a line from the `centerPoint` and extends horizontally to the right for the indicated `radius`, then sweeps clockwise toward the `endAngle`.

    Note that the startAngle may validly be a greater numeric value than the endAngle. The sector will always be drawn clockwise from startAngle to endAngle, so a sector with startAngle of 350 and endAngle of 10 would draw a 20-degree segment sticking out to the right of the centerPoint.

    Drawing a full circle: A developer may have a drawSector transcribe a full circle by using values of 360 or greater as the end point. For example a drawSector with startAngle set to 350 and endAngle set to 710 would transcribe a full circle which starts and ends on the same line (10 degrees above the horizontal, to the right of the centerPoint).

    Returns:
      Current startAngle value. Default value is 0.0

  - ### setStartAngle

    public DrawSector setStartAngle(double startAngle) throws IllegalStateException
    Start angle of the sector in degrees. Default of 0.0 will create a sector that starts with a line from the `centerPoint` and extends horizontally to the right for the indicated `radius`, then sweeps clockwise toward the `endAngle`.

    Note that the startAngle may validly be a greater numeric value than the endAngle. The sector will always be drawn clockwise from startAngle to endAngle, so a sector with startAngle of 350 and endAngle of 10 would draw a 20-degree segment sticking out to the right of the centerPoint.

    Drawing a full circle: A developer may have a drawSector transcribe a full circle by using values of 360 or greater as the end point. For example a drawSector with startAngle set to 350 and endAngle set to 710 would transcribe a full circle which starts and ends on the same line (10 degrees above the horizontal, to the right of the centerPoint).

    Parameters:
      `startAngle` - New startAngle value. Default value is 0.0
    Returns:
      `DrawSector` instance, for chaining setter calls
    Throws:
      `IllegalStateException` - this property cannot be changed after the component has been created

  - ### getStartAngleAsDouble

    public double getStartAngleAsDouble()
    Start angle of the sector in degrees. Default of 0.0 will create a sector that starts with a line from the `centerPoint` and extends horizontally to the right for the indicated `radius`, then sweeps clockwise toward the `endAngle`.

    Note that the startAngle may validly be a greater numeric value than the endAngle. The sector will always be drawn clockwise from startAngle to endAngle, so a sector with startAngle of 350 and endAngle of 10 would draw a 20-degree segment sticking out to the right of the centerPoint.

    Drawing a full circle: A developer may have a drawSector transcribe a full circle by using values of 360 or greater as the end point. For example a drawSector with startAngle set to 350 and endAngle set to 710 would transcribe a full circle which starts and ends on the same line (10 degrees above the horizontal, to the right of the centerPoint).

    Returns:
      Current startAngle value. Default value is 0.0

  - ### getArcMidpoint

    public Point getArcMidpoint()
    Calculates the coordinates of the midpoint of this DrawSector's circular arc. The formula for this point is:

    >     var averageAngle = (startAngle + endAngle) / 2; // in degrees
    >      [centerX + radius * cosdeg(averageAngle), centerY + radius * sindeg(averageAngle)]

    Returns:
      the coordinates of the midpoint of the arc.

  - ### getCenter

    public Point getCenter()
    Returns the sector's `centerPoint`.
    Overrides:
      `getCenter` in class `DrawItem`
    Returns:
      the current centerPoint

  - ### moveBy

    public void moveBy(int x, int y)
    Move the DrawSector by the specified amounts.
    Overrides:
      `moveBy` in class `DrawItem`
    Parameters:
      `x` - number of pixels to move by horizontally
      `y` - number of pixels to move by vertically

  - ### getArcMidpoint

    public static Point getArcMidpoint(double centerX, double centerY, double startAngle, double endAngle, double radius)
    Calculates the midpoint coordinates of the circular arc of the sector defined by the given centerPoint, startAngle, endAngle, and radius. The formula for this point is:

    >     var averageAngle = (startAngle + endAngle) / 2; // in degrees
    >      [centerX + radius * cosdeg(averageAngle), centerY + radius * sindeg(averageAngle)]

    Parameters:
      `centerX` - X coordinate of the center point of the sector.
      `centerY` - Y coordinate of the center point of the sector.
      `startAngle` - start angle of the sector in degrees.
      `endAngle` - end angle of the sector in degrees.
      `radius` - radius of the sector.
    Returns:
      the coordinates of the midpoint of the arc.

  - ### setDefaultProperties

    public static void setDefaultProperties(DrawSector drawSectorProperties)
    Class level method to set the default properties of this class. If set, then all existing and subsequently created instances of this class will automatically have default properties corresponding to the properties set on the SmartGWT class instance passed to this function before its underlying SmartClient JS object was created. This is a powerful feature that eliminates the need for users to create a separate hierarchy of subclasses that only alter the default properties of this class. Can also be used for skinning / styling purposes.

    Note: This method is intended for setting default attributes only and will affect all instances of the underlying class (including those automatically generated in JavaScript). This method should not be used to apply standard EventHandlers or override methods for a class - use a custom subclass instead. Calling this method after instances have been created can result in undefined behavior, since it bypasses any setters and a class instance may have already examined a particular property and not be expecting any changes through this route.

    Parameters:
      `drawSectorProperties` - properties that should be used as new defaults when instances of this class are created
    See Also:
      - `SGWTProperties`

  - ### setLogicalStructure

    public LogicalStructureObject setLogicalStructure(DrawSectorLogicalStructure s)
    Setter implementing the `LogicalStructure` interface, which supports Eclipse's logical structure debugging facility.

  - ### getLogicalStructure

    public LogicalStructureObject getLogicalStructure()
    Getter implementing the `LogicalStructure` interface, which supports Eclipse's logical structure debugging facility.
    Specified by:
      `getLogicalStructure` in interface `LogicalStructure`
    Overrides:
      `getLogicalStructure` in class `DrawItem`