com.partnersoft.v3x.io.formats.rover
Class RoverLib

java.lang.Object
  com.partnersoft.v3x.io.formats.rover.RoverLib

All Implemented Interfaces:

RoverConstants

public class RoverLib
extends java.lang.Object
implements RoverConstants

Various disgustingly lazy static methods.

Field Summary

Fields inherited from interface com.partnersoft.v3x.io.formats.rover.RoverConstants

DRAW_JUSTIFIED_TEXT, DRAW_OFFSET_POINT, DRAW_OFFSET_TEXT, DRAW_POINT, DRAW_POLYGON, DRAW_POLYLINE, DRAW_TEXT, EOF, JUSTIFY_BASELINE_CENTER, JUSTIFY_BASELINE_LEFT, JUSTIFY_BASELINE_RIGHT, JUSTIFY_NOTSPECIFIED, OPCODE_TYPE_BOUNDARY, SIZE_DRAW_JUSTIFIED_TEXT_PREAMBLE, SIZE_DRAW_OFFSET_POINT, SIZE_DRAW_OFFSET_TEXT_CONCLUSION, SIZE_DRAW_OFFSET_TEXT_PREAMBLE, SIZE_DRAW_POINT, SIZE_DRAW_POLYLINE_PREAMBLE, SIZE_DRAW_TEXT_PREAMBLE, STYLE_REGION

Constructor Summary

RoverLib()

Method Summary

static byte[]	bytesFor(RoverGraphic graphic) Creates a byte array containing the bytecodes for the given RoverGraphic.
static float	byteToRotation(byte packed) Parses a rotation in radians from a single byte.
static DoubleRectangle	extentsFor(java.io.InputStream roverStream) Returns the extents for the rovers in the provided input stream.
static float	firstXCoordIn(byte[] roverBytes) Returns first x coordinate for the given byte array.
static float	firstYCoordIn(byte[] roverBytes) Returns first y coordinate for the given byte array.
static byte	rotationToByte(float radians) Formats a rotation, in radians, as a single byte.
static RoverGraphic	roverGraphicFor(byte[] roverBytes) The opposite of bytesFor(); this creates a RoverGraphic object from the given byte array.
static void	setDataID(byte[] roverBytes, int ID) Sets the data ID for all items in the given byte array.
static void	setStyles(byte[] roverBytes, int styleCode)
static void	setStyles(byte[] roverBytes, int pointStyle, int lineStyle, int textStyle) Sets the style codes for all items in the given byte array.
static int	styleCodeFor(byte[] roverBytes) Extracts a style code from a byte array.

Methods inherited from class java.lang.Object

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

Constructor Detail

RoverLib

public RoverLib()

Method Detail

styleCodeFor

public static int styleCodeFor(byte[] roverBytes)

Extracts a style code from a byte array. Basically creates the stylecode from bytes 1 and 2.

firstXCoordIn

public static float firstXCoordIn(byte[] roverBytes)

Returns first x coordinate for the given byte array. Smart enough to dope out which is lines and which are points etc.

firstYCoordIn

public static float firstYCoordIn(byte[] roverBytes)

Returns first y coordinate for the given byte array. Smart enough to dope out which is lines and which are points etc.

bytesFor

public static byte[] bytesFor(RoverGraphic graphic)

Creates a byte array containing the bytecodes for the given RoverGraphic. Synchronized so that it can reuse some private globals - hey, if you want something that's not synchronized, write it yerself.

Oh, yeah, if it generates an IOException it catches it and dies - there really shouldn't be any.

roverGraphicFor

public static RoverGraphic roverGraphicFor(byte[] roverBytes)

The opposite of bytesFor(); this creates a RoverGraphic object from the given byte array.

extentsFor

public static DoubleRectangle extentsFor(java.io.InputStream roverStream)
                                  throws java.io.IOException

Returns the extents for the rovers in the provided input stream.

Throws:

java.io.IOException

rotationToByte

public static byte rotationToByte(float radians)

Formats a rotation, in radians, as a single byte. Obviously loses precision!

byteToRotation

public static float byteToRotation(byte packed)

Parses a rotation in radians from a single byte. Neat!

setDataID

public static void setDataID(byte[] roverBytes,
                             int ID)

Sets the data ID for all items in the given byte array.

setStyles

public static void setStyles(byte[] roverBytes,
                             int styleCode)

setStyles

public static void setStyles(byte[] roverBytes,
                             int pointStyle,
                             int lineStyle,
                             int textStyle)

Sets the style codes for all items in the given byte array.