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RCHART TUTORIAL, Chapter 9

Copyright 2003, J4L Components (http://www.java4less.com)
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Gaugechart configuration

This is a complete example of a gaugechart with 2 subgauges:

*Parameters*	*Description*	*Equivalent Java[TM] class/property*
YLABEL_COLOR=0xffffff Y2AXIS=TRUE YAXIS=TRUE XSCALE_MIN=0 YSCALE_MIN=0 Y2SCALE_MIN=0 XSCALE_MAX=100 YSCALE_MAX=25 Y2SCALE_MAX=15 XAXIS_START_WITH_BIG_TICK=TRUE YAXIS_START_WITH_BIG_TICK=TRUE Y2AXIS_START_WITH_BIG_TICK=TRUE YAXIS_STYLE=2.0\|0xffffff\|NORMAL YAXIS_FONT_COLOR=0xffffff XAXIS_INTEGER=TRUE YAXIS_INTEGER=TRUE LEGEND_FILL=0xffffff LEGEND_BORDER=0.2\|0x0\|NORMAL SERIE_1=gauge SERIE_2=gauge2 SERIE_3=gauge3 SERIE_TYPE_1=GAUGE SERIE_TYPE_2=GAUGE SERIE_TYPE_3=GAUGE SERIE_DATA_1=33\|15\|5 GAUGE_NEEDLE_1=Needle1 GAUGE_NEEDLE_2=Needle2 GAUGE_NEEDLE_3=needle3 GAUGE_NEEDLE_STYLE_1=0xff0000 GAUGE_NEEDLE_STYLE_2=0x0 GAUGE_NEEDLE_STYLE_3=0xffff00 SERIE_NEEDLE_STYLE_1=3.0\|0x0\|NORMAL SERIE_NEEDLE_STYLE_2=3.0\|0x0\|NORMAL SERIE_NEEDLE_STYLE_3=3.0\|0x0\|NORMAL SERIE_NEEDLE_LENTGH_1=70 GAUGE_RADIUS=0.8 GAUGE_BORDER=2.0\|0x0\|NORMAL GAUGE_AXIS1_LABEL_MARGIN=20 GAUGE_MAX_ZONE=90 GAUGE_MIN_ZONE=10 GAUGE_MAXMIN_ZONE_WIDTH=45 GAUGE_MAXMIN_ZONE_MARGIN=4 GAUGE_BACK=0xff GAUGE1_ENABLE=TRUE GAUGE1_BACK=0xffc800 GAUGE2_ENABLE=TRUE GAUGE2_BACK=0xffff LEGEND_MARGIN=0.3	X scale is the one of the main gauge Y scale is the one of the orange gauge Y2 scale is the one of the cyan gauge All scales have a big tick at possition 0 Do not paint decimal point The gauge have 3 needles Values to plot Style of the needles Define possition, size and color of the read and green areas (max, min) Activate first subgauge Activate second subgauge	gaugePlotter.subGauge2.axis1=Y2Axis; gaugePlotter.subGauge1.axis1=YAxis; gaugePlotter=new GaugePlotter() serie=new GaugeDataSerie(values,styles); see values in constructor of new GaugeDataSerie; legend.addItem("Needle 1",fstyle); see styles in constructor of new GaugeDataSerie; serie.needleStyle serie.needleLength gaugePlotter.radiusModifier gaugePlotter.maxZone gaugePlotter.minZone gaugePlotter.maxminZoneWidth gaugePlotter.maxminZoneMargin gaugePlotter.subGauge1=new GaugePlotter(); gaugePlotter.subGauge2=new GaugePlotter();

The subgauges are enabled with:

GAUGE1_ENABLE to true.
GAUGE2_ENABLE to true.

In this case the last (or last two) value of the SERIE_DATA_1 parameter will be used in the subgauge1 (and/or subgauge2). In this example, the value 15 is used for subgauge1 and the value 5 for the subgauge 2.

Parameters of the gauge marked with (*) can be used to defined the subgauges by adding "1" or "2" to the "GAUGE" word in the parameter's name. For example: GAUGE1_BORDER,GAUGE1_BASE,GAUGE2_BORDER,GAUGE2_BASE and so on.

*Parameters*	*Description*	*Equivalent Java[TM] class/property*
YAXIS=FALSE GAUGE1_ENABLE=FALSE GAUGE2_ENABLE=FALSE	remove second scale remove first subgauge remove second subgauge	gaugePlotter.axis2=null; gaugePlotter.subGauge1=null; gaugePlotter.subGauge2=null;

Gaugechart needs at least 1 scale, defined using the XAXIS* parameters. You can define a second scale for the gauge using the YAXIS* parameters. However, if you have defined subgauges, the YAXIS* scale will be used for subgauge1 and the Y2AXIS* scale parameters will be used for subgauge2.

*Parameters*	*Description*	*Equivalent Java[TM] class/property*
YAXIS=TRUE YSCALE_MAX=25 YSCALE_MIN=0	Creates second scale (the one in white) Define maximum value Define minimum value	gaugePlotter.axis2=YAxis; gaugePlotter.axis2.scale.max gaugePlotter.axis2.scale.min

The following parameters are used to configure the green and red areas:

GAUGE_MAX_ZONE(*): Zone above this value will be coloured using MAX_ZONE_COLOR.
GAUGE_MAX_ZONE_COLOR(*): Color used to mark the area near to the maximum in the scale. Default is red.
GAUGE_MIN_ZONE(*): Zone under this value will be coloured using MIN_ZONE_COLOR.
GAUGE_MIN_ZONE_COLOR(*): Color used to mark the area near to the minimum in the scale. Default is green.

*Parameters*	*Description*	*Equivalent Java[TM] class/property*
GAUGE_MAX_ZONE=80 GAUGE_MAX_ZONE_COLOR=0xffc800 GAUGE_MIN_ZONE=20 GAUGE_MIN_ZONE_COLOR=0xffff	Orange area starts at pos. 80 Color of max. zone is Orange Cyan area ends at pos. 20 Color of min. zone is cyan	gaugePlotter.maxZone gaugePlotter.maxZoneColor gaugePlotter.minZone gaugePlotter.minZoneColor

You can also change the size of the circle at the base of the needle.

GAUGE_BASE (*): Size of the circle painted as needle base (% of the radius). Default is 6 which mean 6% of the size of the gauge

*Parameters*	*Description*	*Equivalent Java[TM] class/property*
GAUGE_BASE=12	Size of the red circle at the base	guagePlotter.needleBase

You can change the width of the areas that mark the max and min zones:

GAUGE_MAXMIN_ZONE_WIDTH(*): Width in pixels of the ring for the max and min zones. Default is 50.

*Parameters*	*Description*	*Equivalent Java[TM] class/property*
GAUGE_MAXMIN_ZONE_WIDTH=15	width in pixels of the orange and cyan areas (default is 50).	gaugePlotter.maxminZoneWidth=15;

You can change the margin of the areas that mark the max and min zones:

GAUGE_MAXMIN_ZONE_MARGIN(*):Margin, in pixels (distance to border) of the min/max area. Default is 5.

*Parameters*	*Description*	*Equivalent Java[TM] class/property*
GAUGE_MAXMIN_ZONE_MARGIN=0	Cero means, the area starts at the border.	gaugePlotter.maxminZoneMargin=50;

The following parameters are used to change the start and end possition (angles) of the gauge:

GAUGE_START_ANGLE: Start angle of the scale of the gauge (default is -20). In order to draw a semicircular gauge you must use 0 as start angle and 180 as end angle.
GAUGE_END_ANGLE(*): End angle of the scale of the gauge (default is 200).

*Parameters*	*Description*	*Equivalent Java[TM] class/property*
GAUGE_START_ANGLE=10 GAUGE_END_ANGLE=170	Scale starts at angle 10 and ends at angle 170	gaugePlotter.startAngle=10; gaugePlotter.endAngle=170;

In order to change the possition of the labels of the scale you must use:

GAUGE_AXIS1_LABEL_MARGIN(*). Labels margin (in pixels) of the main scale. Use positive/negative to place the labels outside/inside the circle.Default value is 10 (pixels outside the gauge).
GAUGE_AXIS2_LABEL_MARGIN(*): Labels margin (in pixels) of the second scale. Use positive/negative to place the labels outside/inside the circle. Default value is -20

*Parameters*	*Description*	*Equivalent Java[TM] class/property*
GAUGE_AXIS1_LABEL_MARGIN=7 GAUGE_AXIS2_LABEL_MARGIN=5	Possition of the white labels are 5 pixels outside the scale.	gaugePlotter.axis1LabelMargin gaugePlotter.axis2LabelMargin

These parameters are used to change the possition of the scale:

GAUGE_AXIS1_MARGIN (*): Margin of the main scale (in pixels). Distance in pixels between border and ticks, the default is 5.
GAUGE_AXIS2_MARGIN (*): Margin of the second scale (in pixels). Distance in pixels between border and ticks of the second scale, the default is 40.

*Parameters*	*Description*	*Equivalent Java[TM] class/property*
GAUGE_AXIS1_MARGIN=-4 GAUGE_AXIS2_MARGIN=20 GAUGE_AXIS1_LABEL_MARGIN=7 GAUGE_AXIS2_LABEL_MARGIN=5	Ticks start 4 pixels outside the gauge. Ticks start 20 pixels inside the gauge. Labels are 7 pixels outside the scale..	gaugePlotter.axis1Margin gaugePlotter.axis2Margin gaugePlotter.axis1LabelMargin gaugePlotter.axis2LabelMargin

The size of the gauge and subgauges can be defined with:

GAUGE_RADIUS: Size of the radius gauge, Value between > 0 and < 2. Default is 1.
GAUGE_BORDER (*): Line style of the border of the pie.

*Parameters*	*Description*	*Equivalent Java[TM] class/property*
GAUGE_BORDER=0.2\|0xff0000\|NORMAL GAUGE_RADIUS=0.6	Red border of the gauge (also GAUGE1_BORDER, GAUGE2_BORDER) Size of the gauge	gaugePlotter.border gaugePlotter.radiusModifier

GAUGE_SUBGAUGE_SIZE: Size of the subgauges in % of the size of the main gauge. Default value is 30.

*Parameters*	*Description*	*Equivalent Java[TM] class/property*
GAUGE_SUBGAUGE_SIZE=40	Size of the subgauges	gaugePlotter.subGaugeSize=40;

GAUGE_BACK(*): Background color. Default is blue.

A gauge can contain up to 2 subgauges. In order to activate the subgauges you must set GAUGE2_ENABLE:

*Parameters*	*Description*	*Equivalent Java[TM] class/property*
GAUGE2_ENABLE=TRUE GAUGE2_START_ANGLE=0 GAUGE2_END_ANGLE=180 GAUGE2_BACK=0xffff LEGEND_MARGIN=0.3	Activate subgauge 2 Subgauge is a semicircle (angle 0-180)