Package org.jrobin.graph

Class RrdGraph

java.lang.Object

org.jrobin.graph.RrdGraph

All Implemented Interfaces:

RrdGraphConstants

public class RrdGraph
extends Object
implements RrdGraphConstants

Class which actually creates JRobin graphs (does the hard work).

Field Summary

Fields

Modifier and Type	Field	Description
(package private) DataProcessor	dproc
(package private) RrdGraphDef	gdef
(package private) ImageParameters	im
(package private) RrdGraphInfo	info
(package private) Mapper	mapper
(package private) ImageWorker	worker

Fields inherited from interface org.jrobin.graph.RrdGraphConstants

ALIGN_CENTER_MARKER, ALIGN_JUSTIFIED_MARKER, ALIGN_LEFT_MARKER, ALIGN_RIGHT_MARKER, COLOR_ARROW, COLOR_BACK, COLOR_CANVAS, COLOR_FONT, COLOR_FRAME, COLOR_GRID, COLOR_MGRID, COLOR_NAMES, COLOR_SHADEA, COLOR_SHADEB, DAY, DEFAULT_ARROW_COLOR, DEFAULT_BACK_COLOR, DEFAULT_BASE, DEFAULT_CANVAS_COLOR, DEFAULT_END, DEFAULT_FONT_COLOR, DEFAULT_FONT_NAME, DEFAULT_FRAME_COLOR, DEFAULT_GRID_COLOR, DEFAULT_HEIGHT, DEFAULT_IMAGE_FORMAT, DEFAULT_IMAGE_QUALITY, DEFAULT_MGRID_COLOR, DEFAULT_MONOSPACE_FONT_FILE, DEFAULT_PROPORTIONAL_FONT_FILE, DEFAULT_SHADEA_COLOR, DEFAULT_SHADEB_COLOR, DEFAULT_START, DEFAULT_UNITS_LENGTH, DEFAULT_WIDTH, FIRST_DAY_OF_WEEK, FONTTAG_AXIS, FONTTAG_DEFAULT, FONTTAG_LEGEND, FONTTAG_NAMES, FONTTAG_TITLE, FONTTAG_UNIT, FONTTAG_WATERMARK, FRIDAY, GLUE_MARKER, GRID_STROKE, HOUR, IN_MEMORY_IMAGE, LEGEND_BOX, LEGEND_BOX_SPACE, LEGEND_INTERSPACING, LEGEND_LEADING, LEGEND_LEADING_SMALL, MARKERS, MINUTE, MONDAY, MONTH, NO_JUSTIFICATION_MARKER, PADDING_BOTTOM, PADDING_LEFT, PADDING_LEGEND, PADDING_PLOT, PADDING_RIGHT, PADDING_TITLE, PADDING_TOP, PADDING_VLABEL, SATURDAY, SECOND, SUNDAY, THURSDAY, TICK_STROKE, TUESDAY, VERTICAL_SPACING_MARKER, WEDNESDAY, WEEK, YEAR

Constructor Summary

Constructors

Constructor	Description
RrdGraph(RrdGraphDef gdef)	Creates graph from the corresponding RrdGraphDef object.

Method Summary

Modifier and Type	Method	Description
(package private) double	getBoxSpace()
(package private) double	getFontCharWidth(int fonttag)
(package private) double	getFontHeight(int fonttag)
(package private) double	getInterlegendSpace()
(package private) double	getLeading()
RrdGraphInfo	getRrdGraphInfo()	Returns complete graph information in a single object.
(package private) double	getSmallFontHeight()
(package private) double	getSmallLeading()
void	render(Graphics g)	Renders this graph onto graphing device
(package private) double[]	xtr(long[] timestamps)
(package private) double[]	ytr(double[] values)

Methods inherited from class java.lang.Object

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

Field Detail

gdef

RrdGraphDef gdef

im

ImageParameters im

dproc

DataProcessor dproc

worker

ImageWorker worker

mapper

Mapper mapper

info

RrdGraphInfo info

Constructor Detail

RrdGraph

public RrdGraph(RrdGraphDef gdef)
         throws IOException,
                RrdException

Creates graph from the corresponding RrdGraphDef object.

Parameters:

gdef - Graph definition

Throws:

IOException - Thrown in case of I/O error

RrdException - Thrown in case of JRobin related error

Method Detail

getRrdGraphInfo

public RrdGraphInfo getRrdGraphInfo()

Returns complete graph information in a single object.

Returns:

Graph information (width, height, filename, image bytes, etc...)

getFontHeight

double getFontHeight(int fonttag)

getFontCharWidth

double getFontCharWidth(int fonttag)

getSmallFontHeight

double getSmallFontHeight()

getInterlegendSpace

double getInterlegendSpace()

getLeading

double getLeading()

getSmallLeading

double getSmallLeading()

getBoxSpace

double getBoxSpace()

xtr

double[] xtr(long[] timestamps)

ytr

double[] ytr(double[] values)

render

public void render(Graphics g)

Renders this graph onto graphing device

Parameters:

g - Graphics handle