com.bbn.openmap.omGraphics
Class OMArc

java.lang.Object
  com.bbn.openmap.omGraphics.geom.BasicGeometry
      com.bbn.openmap.omGraphics.OMGraphicAdapter
          com.bbn.openmap.omGraphics.OMArc

All Implemented Interfaces:

OMGeometry, OMGraphic, OMGraphicConstants, java.io.Serializable, java.lang.Cloneable

Direct Known Subclasses:

OMCircle

public class OMArc
extends OMGraphicAdapter
implements OMGraphic

Graphic object that represents an arc.

NOTE:

See the RESTRICTIONS on Lat/Lon polygons/polylines which apply to arcs as well. Not following the guidelines listed may result in ambiguous/undefined shapes! Similar assumptions apply to the other vector graphics that we define: polys, rects, lines.

These assumptions are virtually the same as those on the more generic OMPoly graphic type.

See Also:

OMPoly, Serialized Form

Field Summary

protected int	arcType For Arcs, how the arc should be closed when rendered.
protected java.awt.geom.Point2D	center Center point.
protected double	extent The angular extent of the arc in decimal degrees.
protected double	height The pixel vertical diameter of the arc.
protected int	nverts Number of vertices to draw for lat/lon poly-arcs.
protected double	off_x Horizontal pixel offset.
protected double	off_y Vertical pixel offset.
protected double	radius Radius of arc in radians.
protected double	rotationAngle The angle by which the circle/ellipse is to be rotated, in radians
protected double	start The starting angle of the arc in decimal degrees.
protected double	width The pixel horizontal diameter of the arc.
protected double	x1 Horizontal pixel location of the center.
protected double	y1 Vertical pixel location of the center.

Fields inherited from class com.bbn.openmap.omGraphics.OMGraphicAdapter

declutterType, displayPaint, edgeMatchesFill, fillPaint, hasLabel, linePaint, matted, mattingPaint, renderType, selected, selectPaint, showEditablePalette, stroke, textureMask

Fields inherited from class com.bbn.openmap.omGraphics.geom.BasicGeometry

attributes, lineType, needToRegenerate, shape, visible

Fields inherited from interface com.bbn.openmap.omGraphics.OMGraphicConstants

ADD_GRAPHIC_MASK, APP_OBJECT, BASIC_STROKE, CHANGE_APPEARANCE, clear, DECIMAL_DEGREES, DECLUTTERTYPE_LINE, DECLUTTERTYPE_MOVE, DECLUTTERTYPE_NONE, DECLUTTERTYPE_SPACE, DEFAULT_ROTATIONANGLE, DELETE_GRAPHIC_MASK, DESELECT_GRAPHIC_MASK, DESELECTALL_GRAPHIC_MASK, GRAPHICTYPE_ARC, GRAPHICTYPE_BITMAP, GRAPHICTYPE_CIRCLE, GRAPHICTYPE_ELLIPSE, GRAPHICTYPE_GRAPHIC, GRAPHICTYPE_GRID, GRAPHICTYPE_LINE, GRAPHICTYPE_POINT, GRAPHICTYPE_POLY, GRAPHICTYPE_RASTER, GRAPHICTYPE_RECTANGLE, GRAPHICTYPE_TEXT, INDEX, INFOLINE, LABEL, LINETYPE_GREATCIRCLE, LINETYPE_RHUMB, LINETYPE_STRAIGHT, LINETYPE_UNKNOWN, LOWER_GRAPHIC_MASK, LOWER_TO_BOTTOM_GRAPHIC_MASK, NO_ROTATE, OMGRAPHIC_ELT, OMGRAPHIC_TYPE_ATTR, RADIANS, RAISE_GRAPHIC_MASK, RAISE_TO_TOP_GRAPHIC_MASK, REMOVABLE, RENDERTYPE_LATLON, RENDERTYPE_OFFSET, RENDERTYPE_UNKNOWN, RENDERTYPE_XY, SELECT_GRAPHIC_MASK, SORT_GRAPHICS_MASK, TOOLTIP, UPDATE_GRAPHIC_MASK, UPDATED

Constructor Summary

OMArc()
The simplest constructor for an OMArc, and it expects that all fields will be filled in later.

OMArc(double latPoint, double lonPoint, double radius, double s, double e)
Creates an OMArc with a Lat-lon center and a lat-lon axis.

OMArc(double latPoint, double lonPoint, double radius, Length units, double s, double e)
Create an OMArc with a lat/lon center and a physical distance radius.

OMArc(double latPoint, double lonPoint, double radius, Length units, int nverts, double s, double e)
Create an OMArc with a lat/lon center and a physical distance radius.

OMArc(double latPoint, double lonPoint, int w, int h, double s, double e)
Create an OMArc, positioned with a lat-lon center and x-y axis.

OMArc(double latPoint, double lonPoint, int offset_x1, int offset_y1, int w, int h, double s, double e)
Create a OMArc, positioned at a Lat-lon location, x-y offset, x-y axis.

OMArc(int x1, int y1, int w, int h, double s, double e)
Create a OMArc, positioned with a x-y center with x-y axis.

OMArc(LatLonPoint center, double radius, Length units, int nverts, double s, double e)
Create an OMArc with a lat/lon center and a physical distance radius.

Method Summary

java.lang.Object	clone() Generic return of SinkGraphic for subclasses that don't implement clone properly.
protected java.awt.Shape	createArcShape(double x, double y, double fwidth, double fheight) An internal method designed to fetch the Shape to be used for an XY or OFFSET OMArc.
boolean	generate(Projection proj) Prepare the arc for rendering.
int	getArcType() Get the ArcType.
java.awt.geom.Point2D	getCenter() Get the center Point.
protected java.util.ArrayList<float[]>	getCoordLists(GeoProj proj, LatLonPoint center, double radius, int nverts) An internal method designed to fetch the ArrayList for LATLON OMArcs.
double	getExtentAngle() Get the extent angle of the arc.
int	getHeight() Get the vertical pixel diameter of the arc.
LatLonPoint	getLatLon() Get the center LatLonPoint.
int	getNumVerts() Get the number of vertices of the lat/lon arc.
int	getOffX() Get the x offset from the center.
int	getOffY() Get the y position of the center.
boolean	getPolarCorrection() Get the polar-fill-correction-flag.
java.awt.geom.GeneralPath	getPolarShapeLine() Return the java.awt.Shape (GeneralPath) that reflects a arc that encompasses a pole.
double	getRadius() Get the radius.
double	getRotationAngle() Get the current rotation of the arc.
double	getStartAngle() Get the starting angle of the arc.
int	getWidth() Get the horizontal pixel diameter of the arc.
int	getX() Get the x position of the center.
int	getY() Get the y position of the center.
void	render(java.awt.Graphics g) Paint the arc.
void	restore(OMGeometry source) Takes the generic OMGraphic settings from another OMGraphic and pushes them to this one.
void	setArcType(int type) Set the ArcType, either Arc2D.OPEN (default), Arc2D.PIE or Arc2D.CHORD.
void	setCenter(LatLonPoint p) Set the latitude and longitude of the center point.
void	setExtent(double value) Set the angular extent of the arc.
void	setHeight(int value) Set the vertical pixel diameter of the arc.
void	setLatLon(double lat, double lon) Set the latitude and longitude of the center point.
void	setNeedToRegenerate(boolean value) Sets the regenerate flag for the graphic.
void	setNumVerts(int nverts) Set the number of vertices of the lat/lon arc.
void	setOffX(int value) Set the x offset from the center.
void	setOffY(int value) Set the y offset from the center.
void	setPolarCorrection(boolean value) Set the polar-fill-correction-flag.
void	setRadius(double radius) Set the radius.
void	setRadius(double radius, Length units) Set the radius with units.
void	setRotationAngle(double angle) Set the angle by which the arc is to rotated.
void	setStart(double value) Set the starting angle the arc.
void	setWidth(int value) Set the horizontal pixel diameter of the arc.
void	setX(int value) Set the x position of the center.
void	setY(int value) Set the y position of the center.
protected boolean	shouldCenterBeInShape() Helper function that helps the generate method figure out if the center point should be in the generate shape - if it's not, the code knows that there is a problem with the poles, and the polar correction code needs to be run.

Methods inherited from class com.bbn.openmap.omGraphics.OMGraphicAdapter

deselect, distance, getDeclutterType, getDisplayColor, getDisplayPaint, getEdgeMatchesFill, getFillColor, getFillPaint, getHasLabel, getLineColor, getLinePaint, getMattingPaint, getRenderType, getSelectColor, getSelectPaint, getShowEditablePalette, getStroke, getTextureMask, hasLineTypeChoice, initLabelingDuringGenerate, isClear, isMatted, isSelected, normalizeDistanceForLineWidth, readStroke, readTextureMask, regenerate, renderLabel, renderShape, select, setDeclutterType, setEdgeMatchesFill, setFillColor, setFillPaint, setGraphicsColor, setGraphicsForEdge, setGraphicsForFill, setHasLabel, setLabelLocation, setLabelLocation, setLabelLocation, setLabelLocation, setLabelLocation, setLabelLocation, setLabelLocation, setLabelLocation, setLineColor, setLinePaint, setMatted, setMattingPaint, setRenderType, setSelectColor, setSelected, setSelectPaint, setShowEditablePalette, setStroke, setTextureMask, shouldRenderEdge, shouldRenderFill, writeStroke, writeTextureMask

Methods inherited from class com.bbn.openmap.omGraphics.geom.BasicGeometry

_distance, appendShapeEdge, appendShapeEdge, appendShapeEdge, appendShapeEdge, clearAttributes, contains, createAttributeMap, createBoxShape, createShape, createShape, describeShapeDetail, describeShapeDetail, distanceToEdge, distanceToEdge, draw, draw, fill, fill, getAppObject, getAttribute, getAttributes, getDescription, getLineType, getNeedToRegenerate, getShape, isRenderable, isRenderable, isVisible, putAttribute, removeAttribute, setAppObject, setAttributes, setLineType, setShape, setVisible

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.bbn.openmap.omGraphics.OMGraphic

deselect, getDeclutterType, getDisplayColor, getDisplayPaint, getFillColor, getFillPaint, getLineColor, getLinePaint, getMattingPaint, getRenderType, getSelectColor, getSelectPaint, getShowEditablePalette, getStroke, getTextureMask, hasLineTypeChoice, isMatted, isSelected, normalizeDistanceForLineWidth, regenerate, renderLabel, select, setDeclutterType, setFillPaint, setGraphicsColor, setGraphicsForEdge, setGraphicsForFill, setLabelLocation, setLabelLocation, setLabelLocation, setLinePaint, setMatted, setMattingPaint, setRenderType, setSelected, setSelectPaint, setShowEditablePalette, setStroke, setTextureMask, shouldRenderEdge, shouldRenderFill

Methods inherited from interface com.bbn.openmap.omGraphics.OMGeometry

clearAttributes, contains, distance, distanceToEdge, draw, draw, fill, fill, getAppObject, getAttribute, getAttributes, getDescription, getLineType, getNeedToRegenerate, getShape, isRenderable, isRenderable, isVisible, putAttribute, removeAttribute, setAppObject, setAttributes, setLineType, setShape, setVisible

Field Detail

x1

protected double x1

Horizontal pixel location of the center.

y1

protected double y1

Vertical pixel location of the center.

off_x

protected double off_x

Horizontal pixel offset.

off_y

protected double off_y

Vertical pixel offset.

center

protected java.awt.geom.Point2D center

Center point.

radius

protected double radius

Radius of arc in radians. For LATLON arc. Note that the methods for this class use Decimal Degrees, or ask for a Length object to use for units. The radius is converted to radians for internal use.

width

protected double width

The pixel horizontal diameter of the arc. For XY and OFFSET arcs.

height

protected double height

The pixel vertical diameter of the arc. For XY and OFFSET arcs.

start

protected double start

The starting angle of the arc in decimal degrees. This is defined in decimal degrees because the java.awt.geom.Arc object wants it in decimal degrees. 0 is North?

extent

protected double extent

The angular extent of the arc in decimal degrees.

arcType

protected int arcType

For Arcs, how the arc should be closed when rendered. Arc2D.OPEN is the default, Arc2D.PIE and Arc2D.CHORD are options.

See Also:

Arc2D

nverts

protected int nverts

Number of vertices to draw for lat/lon poly-arcs.

rotationAngle

protected double rotationAngle

The angle by which the circle/ellipse is to be rotated, in radians

Constructor Detail

OMArc

public OMArc()

The simplest constructor for an OMArc, and it expects that all fields will be filled in later. Rendertype is RENDERTYPE_UNKNOWN.

OMArc

public OMArc(double latPoint,
             double lonPoint,
             int w,
             int h,
             double s,
             double e)

Create an OMArc, positioned with a lat-lon center and x-y axis. Rendertype is RENDERTYPE_OFFSET.

Parameters:

latPoint - latitude of center point, decimal degrees

lonPoint - longitude of center point, decimal degrees

w - horizontal diameter of arc, pixels

h - vertical diameter of arc, pixels

s - starting angle of arc, decimal degrees

e - angular extent of arc, decimal degrees

OMArc

public OMArc(int x1,
             int y1,
             int w,
             int h,
             double s,
             double e)

Create a OMArc, positioned with a x-y center with x-y axis. Rendertype is RENDERTYPE_XY.

Parameters:

x1 - window position of center point from left of window, in pixels

y1 - window position of center point from top of window, in pixels

w - horizontal diameter of arc, pixels

h - vertical diameter of arc, pixels

s - starting angle of arc, decimal degrees

e - angular extent of arc, decimal degrees. For XY rendertype arcs, positive extents go in the counter-clockwise direction, matching the java.awt.geom.Arc2D convention.

OMArc

public OMArc(double latPoint,
             double lonPoint,
             int offset_x1,
             int offset_y1,
             int w,
             int h,
             double s,
             double e)

Create a OMArc, positioned at a Lat-lon location, x-y offset, x-y axis. Rendertype is RENDERTYPE_OFFSET.

Parameters:

latPoint - latitude of center of arc.

lonPoint - longitude of center of arc.

offset_x1 - # pixels to the right the center will be moved from lonPoint.

offset_y1 - # pixels down that the center will be moved from latPoint.

w - horizontal diameter of arc, pixels.

h - vertical diameter of arc, pixels.

s - starting angle of arc, decimal degrees.

e - angular extent of arc, decimal degrees. For Offset rendertype arcs, positive extents go in the counter-clockwise direction, matching the java.awt.geom.Arc2D convention.

OMArc

public OMArc(double latPoint,
             double lonPoint,
             double radius,
             double s,
             double e)

Creates an OMArc with a Lat-lon center and a lat-lon axis. Rendertype is RENDERTYPE_LATLON.

Parameters:

latPoint - latitude of center point, decimal degrees

lonPoint - longitude of center point, decimal degrees

radius - distance in decimal degrees (converted to radians internally).

s - starting angle of arc, decimal degrees

e - angular extent of arc, decimal degrees. For LATLON rendertype arcs, positive extents go in the clockwise direction, matching the OpenMap convention in coordinate space.

OMArc

public OMArc(double latPoint,
             double lonPoint,
             double radius,
             Length units,
             double s,
             double e)

Create an OMArc with a lat/lon center and a physical distance radius. Rendertype is RENDERTYPE_LATLON.

Parameters:

latPoint - latitude of center of arc in decimal degrees

lonPoint - longitude of center of arc in decimal degrees

radius - distance

units - com.bbn.openmap.proj.Length object.

s - starting angle of arc, decimal degrees.

e - angular extent of arc, decimal degrees. For LATLON rendertype arcs, positive extents go in the clockwise direction, matching the OpenMap convention in coordinate space.

OMArc

public OMArc(double latPoint,
             double lonPoint,
             double radius,
             Length units,
             int nverts,
             double s,
             double e)

Create an OMArc with a lat/lon center and a physical distance radius. Rendertype is RENDERTYPE_LATLON.

Parameters:

latPoint - latitude of center of arc in decimal degrees

lonPoint - longitude of center of arc in decimal degrees

radius - distance

units - com.bbn.openmap.proj.Length object specifying units.

nverts - number of vertices for the poly-arc (if < 3, value is generated internally)

s - starting angle of arc, decimal degrees.

e - angular extent of arc, decimal degrees. For LATLON rendertype arcs, positive extents go in the clockwise direction, matching the OpenMap convention in coordinate space.

OMArc

public OMArc(LatLonPoint center,
             double radius,
             Length units,
             int nverts,
             double s,
             double e)

Create an OMArc with a lat/lon center and a physical distance radius. Rendertype is RENDERTYPE_LATLON.

Parameters:

center - LatLon center of arc

radius - distance

units - com.bbn.openmap.proj.Length object specifying units for distance.

nverts - number of vertices for the poly-arc(if < 3, value is generated internally)

s - starting angle of arc, decimal degrees.

e - angular extent of arc, decimal degrees. For LATLON rendertype arcs, positive extents go in the clockwise direction, matching the OpenMap convention in coordinate space.

Method Detail

getX

public int getX()

Get the x position of the center. This is always meaningful only if the render type is RENDERTYPE_XY or RENDERTYPE_OFFSET, and meaningful after generation if the RENDERTYPE_LATLON.

Returns:

x position of center.

getY

public int getY()

Get the y position of the center. This is always meaningful only if the render type is RENDERTYPE_XY or RENDERTYPE_OFFSET, and meaningful after generation if the RENDERTYPE_LATLON.

Returns:

y position of center.

getOffX

public int getOffX()

Get the x offset from the center. This is meaningful only if the render type is RENDERTYPE_OFFSET.

Returns:

x offset from center.

getOffY

public int getOffY()

Get the y position of the center. This is meaningful only if the render type is RENDERTYPE_OFFSET.

Returns:

y offset from center.

getLatLon

public LatLonPoint getLatLon()

Get the center LatLonPoint. This is meaningful only if the rendertype is RENDERTYPE_LATLON or RENDERTYPE_OFFSET.

Returns:

LatLonPoint position of center.

getRadius

public double getRadius()

Get the radius. This is meaningful only if the render type is RENDERTYPE_LATLON.

Returns:

double radius in decimal degrees

getWidth

public int getWidth()

Get the horizontal pixel diameter of the arc. This is meaningful only if the render type is RENDERTYPE_XY or RENDERTYPE_OFFSET.

Returns:

the horizontal pixel diameter of the arc.

getHeight

public int getHeight()

Get the vertical pixel diameter of the arc. This is meaningful only if the render type is RENDERTYPE_XY or RENDERTYPE_OFFSET.

Returns:

the vertical pixel diameter of the arc.

getStartAngle

public double getStartAngle()

Get the starting angle of the arc.

Returns:

the starting angle of the arc in decimal degrees.

getExtentAngle

public double getExtentAngle()

Get the extent angle of the arc.

Returns:

the angular extent of the arc in decimal degrees. For LATLON rendertype arcs, positive extents go in the clockwise direction, matching the OpenMap convention in coordinate space. For XY and OFFSET rendertype arcs, positive extents go in the clockwise direction, matching the java.awt.geom.Arc2D convention.

getNumVerts

public int getNumVerts()

Get the number of vertices of the lat/lon arc. This will be meaningful only if the render type is RENDERTYPE_XY or RENDERTYPE_OFFSET and for LINETYPE_GREATARC or LINETYPE_RHUMB line types.

Returns:

int number of segment points

setX

public void setX(int value)

Set the x position of the center. This will be meaningful only if the render type is RENDERTYPE_XY.

Parameters:

value - the x position of center.

setY

public void setY(int value)

Set the y position of the center. This will be meaningful only if the render type is RENDERTYPE_XY.

Parameters:

value - the y position of center.

setOffX

public void setOffX(int value)

Set the x offset from the center. This will be meaningful only if the render type is RENDERTYPE_OFFSET.

Parameters:

value - the x position of center.

setOffY

public void setOffY(int value)

Set the y offset from the center. This will be meaningful only if the render type is RENDERTYPE_OFFSET.

Parameters:

value - the y position of center.

setLatLon

public void setLatLon(double lat,
                      double lon)

Set the latitude and longitude of the center point. This is meaningful only if the rendertype is RENDERTYPE_LATLON or RENDERTYPE_OFFSET.

Parameters:

lat - latitude in decimal degrees

lon - longitude in decimal degrees

setCenter

public void setCenter(LatLonPoint p)

Set the latitude and longitude of the center point. This is meaningful only if the rendertype is RENDERTYPE_LATLON or RENDERTYPE_OFFSET.

Parameters:

p - LatLonPoint of center.

getCenter

public java.awt.geom.Point2D getCenter()

Get the center Point.

setRadius

public void setRadius(double radius)

Set the radius. This is meaningful only if the render type is RENDERTYPE_LATLON. Note that while the radius is specified as decimal degrees, it only means the distance along the ground that that number of degrees represents at the equator, *NOT* a radius of a number of degrees around a certain location. There is a difference.

Parameters:

radius - float radius in decimal degrees

setRadius

public void setRadius(double radius,
                      Length units)

Set the radius with units. This is meaningful only if the render type is RENDERTYPE_LATLON.

Parameters:

radius - float radius

units - Length specifying unit type.

setWidth

public void setWidth(int value)

Set the horizontal pixel diameter of the arc. This is meaningful only if the render type is RENDERTYPE_XY or RENDERTYPE_OFFSET.

Parameters:

value - the horizontal pixel diameter of the arc.

setHeight

public void setHeight(int value)

Set the vertical pixel diameter of the arc. This is meaningful only if the render type is RENDERTYPE_XY or RENDERTYPE_OFFSET.

Parameters:

value - the vertical pixel diameter of the arc.

setStart

public void setStart(double value)

Set the starting angle the arc.

Parameters:

value - the starting angle of the arc in decimal degrees.

setExtent

public void setExtent(double value)

Set the angular extent of the arc.

Parameters:

value - the angular extent of the arc in decimal degrees. For LATLON rendertype arcs, positive extents go in the clockwise direction, matching the OpenMap convention in coordinate space. For XY and OFFSET rendertype arcs, positive extents go in the clockwise direction, matching the java.awt.geom.Arc2D convention.

setNumVerts

public void setNumVerts(int nverts)

Set the number of vertices of the lat/lon arc. This is meaningful only if the render type is RENDERTYPE_LATLON and for LINETYPE_GREATARC or LINETYPE_RHUMB line types. If < 1, this value is generated internally.

Parameters:

nverts - number of segment points

setArcType

public void setArcType(int type)

Set the ArcType, either Arc2D.OPEN (default), Arc2D.PIE or Arc2D.CHORD.

See Also:

Arc2D

getArcType

public int getArcType()

Get the ArcType.

See Also:

Arc2D

setRotationAngle

public void setRotationAngle(double angle)

Set the angle by which the arc is to rotated.

Parameters:

angle - the number of radians the arc is to be rotated. Measured clockwise from horizontal. Positive numbers move the positive x axis toward the positive y axis.

getRotationAngle

public double getRotationAngle()

Get the current rotation of the arc.

Returns:

the arc rotation.

setNeedToRegenerate

public void setNeedToRegenerate(boolean value)

Description copied from class: BasicGeometry

Sets the regenerate flag for the graphic. This flag is used to determine if extra work needs to be done to prepare the object for rendering. This also sets the shape to null;

Specified by:

setNeedToRegenerate in interface OMGeometry

Overrides:

setNeedToRegenerate in class BasicGeometry

Parameters:

value - boolean

getPolarCorrection

public boolean getPolarCorrection()

Get the polar-fill-correction-flag.

Returns:

boolean

See Also:

setPolarCorrection(boolean)

setPolarCorrection

public void setPolarCorrection(boolean value)

Set the polar-fill-correction-flag. We don't correctly render *filled* arcs/polygons which encompass a pole in Cylindrical projections. This method will toggle support for correcting this problem. You should only set this on arcs that encompass a pole and are drawn with a fill color. You do not need to set this if you're only drawing the arc outline.

Parameters:

value - boolean

See Also:

OMGraphic.setLinePaint(java.awt.Paint), OMGraphic.setFillPaint(java.awt.Paint)

shouldCenterBeInShape

protected boolean shouldCenterBeInShape()

Helper function that helps the generate method figure out if the center point should be in the generate shape - if it's not, the code knows that there is a problem with the poles, and the polar correction code needs to be run.

generate

public boolean generate(Projection proj)

Prepare the arc for rendering.

Specified by:

generate in interface OMGeometry

Specified by:

generate in class OMGraphicAdapter

Parameters:

proj - Projection

Returns:

true if generate was successful

See Also:

OMGraphicAdapter.regenerate(com.bbn.openmap.proj.Projection)

createArcShape

protected java.awt.Shape createArcShape(double x,
                                        double y,
                                        double fwidth,
                                        double fheight)

An internal method designed to fetch the Shape to be used for an XY or OFFSET OMArc. This method is smart enough to take the calculated position information and make a call to Arc2D.Double with start, extent and arcType information.

getCoordLists

protected java.util.ArrayList<float[]> getCoordLists(GeoProj proj,
                                                     LatLonPoint center,
                                                     double radius,
                                                     int nverts)

An internal method designed to fetch the ArrayList for LATLON OMArcs. This method is smart enough to take the calculated position information and make a call to Projection.forwardArc() with start, extent and arcType information.

getPolarShapeLine

public java.awt.geom.GeneralPath getPolarShapeLine()

Return the java.awt.Shape (GeneralPath) that reflects a arc that encompasses a pole. Used when the projection is Cylindrical.

Returns:

a GeneralPath object, or null if it's not needed (which is probably most of the time, if the arc doesn't include a pole or the projection isn't Cylindrical).

render

public void render(java.awt.Graphics g)

Paint the arc.

Specified by:

render in interface OMGeometry

Overrides:

render in class OMGraphicAdapter

Parameters:

g - Graphics context to render into

clone

public java.lang.Object clone()

Description copied from class: OMGraphicAdapter

Generic return of SinkGraphic for subclasses that don't implement clone properly.

Specified by:

clone in interface OMGraphic

Overrides:

clone in class OMGraphicAdapter

Returns:

Object cloned from this OMGraphic

See Also:

OMGraphic.clone()

restore

public void restore(OMGeometry source)

Description copied from class: OMGraphicAdapter

Takes the generic OMGraphic settings from another OMGraphic and pushes them to this one.

Specified by:

restore in interface OMGeometry

Overrides:

restore in class OMGraphicAdapter