com.bbn.openmap.layer.link
Class LinkPoint

java.lang.Object
  com.bbn.openmap.layer.link.LinkPoint

All Implemented Interfaces:

LinkGraphicConstants, LinkPropertiesConstants

public class LinkPoint
extends java.lang.Object
implements LinkGraphicConstants, LinkPropertiesConstants

Read and write the Link protocol for points. The protocol for the point has location information for the point, as well as a radius value indicating the size associated with this point. OMPoints also support whether the point should be rendered as a rectangle or an oval. That choice is specified as a property for the LinkPoint, along with any other rendering or attribute information that should be applied to the point.

Field Summary

static java.lang.String

LPC_POINT_OVAL The property for the LinkPoint to specify if the OMPoint should be rendered as an oval.

Fields inherited from interface com.bbn.openmap.layer.link.LinkGraphicConstants

BASELINE_BOTTOM, BASELINE_MIDDLE, BASELINE_TOP, BLACK_COLOR_STRING, CLEAR_COLOR_STRING, COLORMODEL_DIRECT, COLORMODEL_INDEXED, COLORMODEL_URL, COLUMN_MAJOR, COORDMODE_ORIGIN, COORDMODE_PREVIOUS, DECIMAL_DEGREES, GRAPHICTYPE_ARC, GRAPHICTYPE_BITMAP, GRAPHICTYPE_CIRCLE, GRAPHICTYPE_ELLIPSE, GRAPHICTYPE_GRAPHIC, GRAPHICTYPE_GRID, GRAPHICTYPE_LINE, GRAPHICTYPE_POINT, GRAPHICTYPE_POLY, GRAPHICTYPE_RASTER, GRAPHICTYPE_RECTANGLE, GRAPHICTYPE_TEXT, JUSTIFY_CENTER, JUSTIFY_LEFT, JUSTIFY_RIGHT, KM, LINETYPE_GREATCIRCLE, LINETYPE_RHUMB, LINETYPE_STRAIGHT, LINETYPE_UNKNOWN, MILES, NMILES, RADIANS, RENDERTYPE_LATLON, RENDERTYPE_OFFSET, RENDERTYPE_UNKNOWN, RENDERTYPE_XY, ROW_MAJOR

Fields inherited from interface com.bbn.openmap.layer.link.LinkPropertiesConstants

LPC_BACKWARD_DIAG_PATTERN, LPC_CENTER_LAT, LPC_CENTER_LONG, LPC_CLEAR_PROPERTIES, LPC_CLEAR_PROPERTIES_CHAR, LPC_CROSS_PATTERN, LPC_DASH, LPC_DASH_DOT, LPC_DASH_DOT_DOT, LPC_DIAG_CROSS_PATTERN, LPC_DOT, LPC_FILLCOLOR, LPC_FILLPATTERN, LPC_FORWARD_DIAG_PATTERN, LPC_GRAPHICID, LPC_HEIGHT, LPC_HIGHLIGHTCOLOR, LPC_HORIZONTAL_PATTERN, LPC_HTML, LPC_INFO, LPC_LATMAX, LPC_LATMIN, LPC_LINECOLOR, LPC_LINESTYLE, LPC_LINEWIDTH, LPC_LINKRASTERIMAGEURL, LPC_LINKROTATION, LPC_LINKTEXTBASELINE, LPC_LINKTEXTFONT, LPC_LINKTEXTSTRING, LPC_LONG_DASH, LPC_LONMAX, LPC_LONMIN, LPC_MESSAGE, LPC_OLD_FILLCOLOR, LPC_OLD_FILLPATTERN, LPC_OLD_HIGHLIGHTCOLOR, LPC_OLD_LINECOLOR, LPC_OLD_LINESTYLE, LPC_OLD_LINEWIDTH, LPC_OLD_LINKTEXTFONT, LPC_OLD_LINKTEXTSTRING, LPC_PROJECTION, LPC_PROPERY_MANAGEMENT_POLICY, LPC_PROPERY_MANAGEMENT_POLICY_CHAR, LPC_REUSE_PROPERTIES, LPC_REUSE_PROPERTIES_CHAR, LPC_SCALE, LPC_SOLID, LPC_SOLID_PATTERN, LPC_TIME, LPC_URL, LPC_VERTICAL_PATTERN, LPC_WIDTH

Constructor Summary

LinkPoint()

Method Summary

static OMPoint	read(java.io.DataInputStream dis) Read the DataInputStream, and create an OMPoint.
static OMPoint	read(java.io.DataInputStream dis, LinkProperties propertiesBuffer) Read the DataInputStream, and create an OMPoint.
static void	write(float lt, float ln, int px1, int py1, int radius, LinkProperties properties, java.io.DataOutputStream dos) Construct an XY point relative to a lat/lon point (RENDERTYPE_OFFSET).
static void	write(float lt, float ln, int radius, LinkProperties properties, java.io.DataOutputStream dos) Create a lat/lon point.
static void	write(int px1, int py1, int radius, LinkProperties properties, java.io.DataOutputStream dos) Construct an XY point at a screen location..
static void	write(OMPoint point, Link link, LinkProperties props) Write an OMPoint to the Link.

Methods inherited from class java.lang.Object

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

Field Detail

LPC_POINT_OVAL

public static final java.lang.String LPC_POINT_OVAL

The property for the LinkPoint to specify if the OMPoint should be rendered as an oval. The value should be true or false, depending if the point should be rendered as an oval.

See Also:

Constant Field Values

Constructor Detail

LinkPoint

public LinkPoint()

Method Detail

write

public static void write(float lt,
                         float ln,
                         int radius,
                         LinkProperties properties,
                         java.io.DataOutputStream dos)
                  throws java.io.IOException

Create a lat/lon point.

Parameters:

lt - latitude of north edge, decimal degrees.

ln - longitude of west edge, decimal degrees.

radius - pixel radius of the point.

properties - description of drawing attributes.

dos - DataOutputStream

Throws:

java.io.IOException

write

public static void write(int px1,
                         int py1,
                         int radius,
                         LinkProperties properties,
                         java.io.DataOutputStream dos)
                  throws java.io.IOException

Construct an XY point at a screen location..

Parameters:

px1 - x pixel position of the first corner relative to the window origin

py1 - y pixel position of the first corner relative to the window origin

radius - pixel radius of the point.

properties - description of drawing attributes.

dos - DataOutputStream

Throws:

java.io.IOException

write

public static void write(float lt,
                         float ln,
                         int px1,
                         int py1,
                         int radius,
                         LinkProperties properties,
                         java.io.DataOutputStream dos)
                  throws java.io.IOException

Construct an XY point relative to a lat/lon point (RENDERTYPE_OFFSET). It doesn't matter which corners of the point are used, as long as they are opposite from each other.

Parameters:

lt - latitude of the reference point, decimal degrees.

ln - longitude of the reference point, decimal degrees.

px1 - x pixel position of the first corner relative to the reference point

py1 - y pixel position of the first corner relative to the reference point

radius - a pixel radius of the point.

properties - description of drawing attributes.

dos - DataOutputStream

Throws:

java.io.IOException

write

public static void write(OMPoint point,
                         Link link,
                         LinkProperties props)
                  throws java.io.IOException

Write an OMPoint to the Link.

Throws:

java.io.IOException

read

public static OMPoint read(java.io.DataInputStream dis)
                    throws java.io.IOException

Read the DataInputStream, and create an OMPoint. Assumes that the LinkPoint header has been read from the link.

Parameters:

dis - DataInputStream

Returns:

OMPoint

Throws:

java.io.IOException

See Also:

OMPoint

read

public static OMPoint read(java.io.DataInputStream dis,
                           LinkProperties propertiesBuffer)
                    throws java.io.IOException

Read the DataInputStream, and create an OMPoint. Assumes that the LinkPoint header has been read from the link.

Parameters:

dis - DataInputStream

propertiesBuffer - a LinkProperties object used to cache previous settings that can be set on the OMPoint being read.

Returns:

OMPoint

Throws:

java.io.IOException

See Also:

OMPoint