com.bbn.openmap.omGraphics.geom
Class PolygonGeometry.LL

java.lang.Object
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  +--com.bbn.openmap.omGraphics.geom.BasicGeometry
        |
        +--com.bbn.openmap.omGraphics.geom.PolygonGeometry
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              +--com.bbn.openmap.omGraphics.geom.PolygonGeometry.LL

All Implemented Interfaces:

OMGeometry, OMGraphicConstants, java.io.Serializable

Direct Known Subclasses:

PolylineGeometry.LL

Enclosing class:

PolygonGeometry

public static class PolygonGeometry.LL

extends PolygonGeometry

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class com.bbn.openmap.omGraphics.geom.PolygonGeometry

PolygonGeometry.LL, PolygonGeometry.Offset, PolygonGeometry.XY

Field Summary

protected int	nsegs Number of segments to draw (used only for LINETYPE_GREATCIRCLE or LINETYPE_RHUMB lines).
protected float[]	rawllpts raw float lats and lons stored internally in radians.

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

doShapes, isPolygon, xpoints, ypoints

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

APP_OBJECT_KEY, appObject, ATT_MAP_KEY, lineType, needToRegenerate, shape, visible

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

ADD_GRAPHIC_MASK, BASIC_STROKE, 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_GRAPHIC, GRAPHICTYPE_GRID, GRAPHICTYPE_LINE, GRAPHICTYPE_POINT, GRAPHICTYPE_POLY, GRAPHICTYPE_RASTER, GRAPHICTYPE_RECTANGLE, GRAPHICTYPE_TEXT, INFOLINE, LABEL, LINETYPE_GREATCIRCLE, LINETYPE_RHUMB, LINETYPE_STRAIGHT, LINETYPE_UNKNOWN, LOWER_GRAPHIC_MASK, LOWER_TO_BOTTOM_GRAPHIC_MASK, RADIANS, RAISE_GRAPHIC_MASK, RAISE_TO_TOP_GRAPHIC_MASK, RENDERTYPE_LATLON, RENDERTYPE_OFFSET, RENDERTYPE_UNKNOWN, RENDERTYPE_XY, SELECT_GRAPHIC_MASK, SORT_GRAPHICS_MASK, TOOLTIP, UPDATE_GRAPHIC_MASK

Constructor Summary

PolygonGeometry.LL(float[] llPoints, int units, int lType)
Create an LL PolygonGeometry from a list of float lat/lon pairs.

PolygonGeometry.LL(float[] llPoints, int units, int lType, int nsegs)
Create an OMPoly from a list of float lat/lon pairs.

Method Summary

protected void	createShape() Since OMPoly has the option to not create a Shape, this method is here to create it if it is asked for.
boolean	generate(Projection proj) Prepare the geometry for rendering.
float[]	getLatLonArray() Return the rawllpts array.
int	getNumSegs() Get the number of subsegments for each segment in the poly.
int	getRenderType() Return the render type.
void	setLocation(float[] llPoints, int units) Set an OMPoly from a list of float lat/lon pairs.
void	setNumSegs(int nsegs) Set the number of subsegments for each segment in the poly.

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

distance, getDoShapes, getIsPolygon, getShape, setDoShapes, setIsPolygon

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

_distance, appendShapeEdge, appendShapeEdge, appendShapeEdge, appendShapeEdge, checkAttributeMap, checkAttributeMap, clearAttributes, contains, createAttributeMap, createBoxShape, createShape, createShape, describeShapeDetail, describeShapeDetail, deselect, distanceToEdge, draw, fill, getAppObject, getAppObject, getAttribute, getAttributeMap, getAttributes, getLineType, getNeedToRegenerate, isRenderable, isVisible, putAttribute, regenerate, removeAttribute, replaceAppObjectWithAttributeMap, select, setAppObject, setAppObject, setAttributes, setLineType, setNeedToRegenerate, setShape, setVisible

Methods inherited from class java.lang.Object

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

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

clearAttributes, contains, deselect, draw, fill, getAppObject, getAttribute, getAttributes, getLineType, getNeedToRegenerate, isRenderable, isVisible, putAttribute, regenerate, removeAttribute, select, setAppObject, setAttributes, setLineType, setNeedToRegenerate, setShape, setVisible

Field Detail

rawllpts

protected float[] rawllpts

raw float lats and lons stored internally in radians.

nsegs

protected int nsegs

Number of segments to draw (used only for LINETYPE_GREATCIRCLE or LINETYPE_RHUMB lines).

Constructor Detail

PolygonGeometry.LL

public PolygonGeometry.LL(float[] llPoints,
                          int units,
                          int lType,
                          int nsegs)

Create an OMPoly from a list of float lat/lon pairs.

NOTES:

• llPoints array is converted into radians IN PLACE for more efficient handling internally if it's not already in radians! For even better performance, you should send us an array already in radians format!
• If you want the poly to be connected (as a polygon), you need to ensure that the first and last coordinate pairs are the same.

Parameters:

llPoints - array of lat/lon points, arranged lat, lon, lat, lon, etc.

units - radians or decimal degrees. Use OMGraphic.RADIANS or OMGraphic.DECIMAL_DEGREES

lType - line type, from a list defined in OMGraphic.

nsegs - number of segment points (only for LINETYPE_GREATCIRCLE or LINETYPE_RHUMB line types, and if < 1, this value is generated internally)

PolygonGeometry.LL

public PolygonGeometry.LL(float[] llPoints,
                          int units,
                          int lType)

Create an LL PolygonGeometry from a list of float lat/lon pairs.

NOTES:

• llPoints array is converted into radians IN PLACE for more efficient handling internally if it's not already in radians! For even better performance, you should send us an array already in radians format!
• If you want the poly to be connected (as a polygon), you need to ensure that the first and last coordinate pairs are the same.

Parameters:

llPoints - array of lat/lon points, arranged lat, lon, lat, lon, etc.

units - radians or decimal degrees. Use OMGraphic.RADIANS or OMGraphic.DECIMAL_DEGREES

lType - line type, from a list defined in OMGraphic.

Method Detail

setLocation

public void setLocation(float[] llPoints,
                        int units)

Set an OMPoly from a list of float lat/lon pairs.

NOTES:

• llPoints array is converted into radians IN PLACE for more efficient handling internally if it's not already in radians! If you don't want the array to be changed, send in a copy.
• If you want the poly to be connected (as a polygon), you need to ensure that the first and last coordinate pairs are the same.

This is for RENDERTYPE_LATLON polys.

Parameters:

llPoints - array of lat/lon points, arranged lat, lon, lat, lon, etc.

units - radians or decimal degrees. Use OMGraphic.RADIANS or OMGraphic.DECIMAL_DEGREES

getLatLonArray

public float[] getLatLonArray()

Return the rawllpts array. NOTE: this is an unsafe method to access the rawllpts array. Use with caution. These are RADIANS!

Returns:

float[] rawllpts of lat, lon, lat, lon

setNumSegs

public void setNumSegs(int nsegs)

Set the number of subsegments for each segment in the poly. (This is only for LINETYPE_GREATCIRCLE or LINETYPE_RHUMB line types, and if < 1, this value is generated internally).

Parameters:

nsegs - number of segment points

getNumSegs

public int getNumSegs()

Get the number of subsegments for each segment in the poly. (This is only for LINETYPE_GREATCIRCLE or LINETYPE_RHUMB line types).

Returns:

int number of segment points

generate

public boolean generate(Projection proj)

Description copied from interface: OMGeometry

Prepare the geometry for rendering. This must be done before calling render()! If a vector graphic has lat-lon components, then we project these vertices into x-y space. For raster graphics we prepare in a different fashion.

If the generate is unsuccessful, it's usually because of some oversight, (for instance if proj is null), and if debugging is enabled, a message may be output to the controlling terminal.

Specified by:

generate in interface OMGeometry

Specified by:

generate in class BasicGeometry

Parameters:

proj - Projection

Returns:

boolean true if successful, false if not.

See Also:

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

createShape

protected void createShape()

Description copied from class: PolygonGeometry

Since OMPoly has the option to not create a Shape, this method is here to create it if it is asked for. The OMPoly needs to be generated.

Specified by:

createShape in class PolygonGeometry

getRenderType

public int getRenderType()

Description copied from interface: OMGeometry

Return the render type.

Specified by:

getRenderType in interface OMGeometry

Specified by:

getRenderType in class BasicGeometry

Returns:

the rendertype of the object - RENDERTYPE_LATLON, RENDERTYPE_XY, RENDERTYPE_OFFSET and RENDERTYPE_UNKNOWN.