com.bbn.openmap.layer.link
Class LinkGrid

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

All Implemented Interfaces:

LinkGraphicConstants

public class LinkGrid
extends java.lang.Object
implements LinkGraphicConstants

Reading and writing the Link protocol version of a grid object. It is assumed that the client will know how to render/handle this grid when it arrives, since it doesn't have any implicit drawing attributes, despite having a semantics object.

Field Summary

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

Constructor Summary

LinkGrid()

Method Summary

static OMGrid	read(java.io.DataInputStream dis) Read a Grid off a DataInputStream.
static OMGrid	read(java.io.DataInputStream dis, LinkProperties propertiesBuffer) Read a Grid off a DataInputStream.
static void	write(float lt, float ln, int rows, int columns, float orientation, float vResolution, float hResolution, int major, int[] data, LinkProperties properties, java.io.DataOutputStream dos) Lat/Lon placement.
static void	write(float lt, float ln, int offset_x1, int offset_y1, int rows, int columns, float orientation, float vResolution, float hResolution, int major, int[] data, LinkProperties properties, java.io.DataOutputStream dos) Lat/lon placement with XY offset.
static void	write(int x1, int y1, int rows, int columns, float orientation, float vResolution, float hResolution, int major, int[] data, LinkProperties properties, java.io.DataOutputStream dos) XY placement.
static void	write(OMGrid grid, Link link, LinkProperties props)

Methods inherited from class java.lang.Object

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

Constructor Detail

LinkGrid

public LinkGrid()

Method Detail

write

public static void write(float lt,
                         float ln,
                         int rows,
                         int columns,
                         float orientation,
                         float vResolution,
                         float hResolution,
                         int major,
                         int[] data,
                         LinkProperties properties,
                         java.io.DataOutputStream dos)
                  throws java.io.IOException

Lat/Lon placement.

Parameters:

lt - latitude of the top of the grid.

ln - longitude of the left side of the grid.

rows - number of vertical points of the grid.

columns - number of horizontal points of the grid.

orientation - the direction of the vertical axits of the grid, in radians from up ( North).

vResolution - degrees/point between rows of the grid.

hResolution - degrees/point between columns of the grid.

major - designation of the presentation of the data, as columns (COLUMN_MAJOR) or rows (ROW_MAJOR).

data - data points of the grid.

properties - description of drawing attributes.

dos - the data output stream to write the object to.

Throws:

java.io.IOException

write

public static void write(int x1,
                         int y1,
                         int rows,
                         int columns,
                         float orientation,
                         float vResolution,
                         float hResolution,
                         int major,
                         int[] data,
                         LinkProperties properties,
                         java.io.DataOutputStream dos)
                  throws java.io.IOException

XY placement.

Parameters:

x1 - window location of the left side of the grid.

y1 - window location of the top of the grid.

rows - number of vertical points of the grid.

columns - number of horizontal points of the grid.

orientation - the direction of the vertical axits of the grid, in radians from up ( North).

vResolution - pixels/point between rows of the grid.

hResolution - pixels/point between columns of the grid.

major - designation of the presentation of the data, as columns (COLUMN_MAJOR) or rows (ROW_MAJOR).

data - data points of the grid.

properties - description of drawing attributes.

dos - the data output stream to write the object to.

Throws:

java.io.IOException

write

public static void write(float lt,
                         float ln,
                         int offset_x1,
                         int offset_y1,
                         int rows,
                         int columns,
                         float orientation,
                         float vResolution,
                         float hResolution,
                         int major,
                         int[] data,
                         LinkProperties properties,
                         java.io.DataOutputStream dos)
                  throws java.io.IOException

Lat/lon placement with XY offset.

Parameters:

lt - latitude of the top of the image, before the offset.

ln - longitude of the left side of the image, before the offset.

offset_x1 - number of pixels to move image to the right.

offset_y1 - number of pixels to move image down.

rows - number of vertical points of the grid.

columns - number of horizontal points of the grid.

orientation - the direction of the vertical axits of the grid, in radians from up ( North).

vResolution - pixels/point between rows of the grid.

hResolution - pixels/point between columns of the grid.

major - designation of the presentation of the data, as columns (COLUMN_MAJOR) or rows (ROW_MAJOR).

data - data points of the grid.

properties - description of drawing attributes.

dos - the data output stream to write the object to.

Throws:

java.io.IOException

write

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

Throws:

java.io.IOException

read

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

Read a Grid off a DataInputStream. Assumes the Grid header has already been read.

Parameters:

dis - DataInputStream to read from.

Returns:

OMGrid

Throws:

java.io.IOException

See Also:

OMGrid

read

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

Read a Grid off a DataInputStream. Assumes the Grid header has already been read.

Parameters:

dis - DataInputStream to read from.

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

Returns:

OMGrid

Throws:

java.io.IOException

See Also:

OMGrid