ZK Charts"

Latest revision as of 04:17, 20 January 2022

Author
Bernd Will

Date
March 19, 2009

Version
ZK 3.5 or higher

Chart

Did you know, that ZK offers 29 chart types out of the box ?

You can find the latest source code of the examples at this address: [1] To use a chart component , developers must prepare a ChartModel and a ChartEngine. Developers also set proper chart type, and the threeD (3D) attribute to draw proper chart. The model and type must fit together, or the result is unpredictable. The 3D chart is not supported on all chart type.

available chart types

Type	Model	3D
`pie`	`PieModel`	`o`
`ring`	`PieModel`	`x`
`bar`	`CategoryModel`	`o`
`line`	`CategoryModel` or `XYModel`	`o`
`area`	`CategoryModel` or `XYModel`	`x`
`stacked_bar`	`CategoryModel`	`o`
`stacked_area`	`CategoryModel` or `XYModel`	`x`
`waterfall`	`CategoryModel`	`x`
`polar`	`XYModel`	x
`scatter`	`XYModel`	x
`time_series`	`XYModel`	x
`polar`	`XYModel`	x
`step_area`	`XYModel`	x
`step`	`XYModel`	x
`histogram`	`XYModel`	x
`candlestick`	`HiLoModel`	x
`hilow`	`HiLoModel`	x
`XYZ`	`XYZModel`	x
`wafer`	`wafermodel`	x
`gantt`	`ganttmodel`	x
`wind`	`windmodel`	x

typical charting code sequence

<vbox>
     <chart id="mychart" title="Pie Chart Demo" width="500" height="250" type="pie" threeD="true" fgAlpha="128"/>
     <zscript>
         PieModel model = new MyPieModel();
         ... fill the model here ...
         mychart.setModel(model);
     </zscript>
 </vbox>

Charts based on Pie Model

Type	Model	3D
`pie`	`PieModel`	`o`
`ring`	`PieModel`	`x`

	
 <vbox>
 <zscript>
   PieModel piemodel = new SimplePieModel();
   piemodel.setValue("C/C++", new Double(12.5));
   piemodel.setValue("Java", new Double(50.2));
   piemodel.setValue("VB", new Double(20.5));
   piemodel.setValue("PHP", new Double(15.5));
 </zscript>
 	<label value="pie" />
 	<chart id="piechart" title="Pie Chart" width="500" height="250"
 		type="pie" threeD="false" fgAlpha="128" onClick="drilldown()" />
 	<zscript>
   piechart.setModel(piemodel);
 </zscript>
 </vbox>

Charts based on Category Model

Type	Model	3D
`bar`	`CategoryModel`	`o`
`line`	`CategoryModel` or `XYModel`	`o`
`area`	`CategoryModel` or `XYModel`	`x`
`stacked_bar`	`CategoryModel`	`o`
`stacked_area`	`CategoryModel` or `XYModel`	`x`
`waterfall`	`CategoryModel`	`x`

<vbox>
<zscript>
CategoryModel catmodel = new SimpleCategoryModel();
catmodel.setValue("2001", "Q1", new Integer(20));
catmodel.setValue("2001", "Q2", new Integer(35));
catmodel.setValue("2001", "Q3", new Integer(40));
catmodel.setValue("2001", "Q4", new Integer(55));
catmodel.setValue("2002", "Q1", new Integer(40));
catmodel.setValue("2002", "Q2", new Integer(60));
catmodel.setValue("2002", "Q3", new Integer(70));
catmodel.setValue("2002", "Q4", new Integer(90));
</zscript>

	<label value="bar" />
	<chart id="barchart" title="Bar Chart" width="500" height="250"
		type="bar" threeD="false" fgAlpha="128" onClick="drilldown()" />
	<zscript>
  barchart.setModel(catmodel);
</zscript>
</vbox>

Charts based on XY Model

Type	Model	3D
`line`	`CategoryModel` or `XYModel`	`o`
`area`	`CategoryModel` or `XYModel`	`x`
`stacked_area`	`CategoryModel` or `XYModel`	`x`
`polar`	`XYModel`	x
`scatter`	`XYModel`	x
`time_series`	`XYModel`	x
`polar`	`XYModel`	x
`step_area`	`XYModel`	x
`step`	`XYModel`	x
`histogram`	`XYModel`	x

<vbox>
<zscript>
XYModel xymodel = new SimpleXYModel();
xymodel.addValue("2001", new Integer(20), new Integer(120));
xymodel.addValue("2001", new Integer(40), new Integer(135));
xymodel.addValue("2001", new Integer(60), new Integer(140));
xymodel.addValue("2001", new Integer(80), new Integer(160));

xymodel.addValue("2002", new Integer(30), new Integer(120));
xymodel.addValue("2002", new Integer(50), new Integer(135));
xymodel.addValue("2002", new Integer(70), new Integer(140));
xymodel.addValue("2002", new Integer(90), new Integer(160));
</zscript>


	<label value="polar" />
	<chart id="polar" title="Polar Chart" width="500" height="250"
		type="polar" threeD="false" fgAlpha="128" onClick="drilldown()" />
	<zscript>
  polar.setModel(xymodel);
</zscript>
</vbox>

<vbox>
<zscript>
XYModel datemodel = new SimpleXYModel();
datemodel.addValue("2001", new Long(time(2001, 5, 2, 1, 10, 15).getTime()), new Integer(120));
datemodel.addValue("2001", new Long(time(2001, 5, 2, 2, 10, 15).getTime()), new Integer(135));
datemodel.addValue("2001", new Long(time(2001, 5, 2, 3, 10, 15).getTime()), new Integer(140));
datemodel.addValue("2001", new Long(time(2001, 5, 2, 4, 10, 15).getTime()), new Integer(160));

datemodel.addValue("2002", new Long(time(2001, 5, 2, 1, 10, 20).getTime()), new Integer(125));
datemodel.addValue("2002", new Long(time(2001, 5, 2, 2, 10, 20).getTime()), new Integer(130));
datemodel.addValue("2002", new Long(time(2001, 5, 2, 3, 10, 20).getTime()), new Integer(120));
datemodel.addValue("2002", new Long(time(2001, 5, 2, 4, 10, 20).getTime()), new Integer(180));
</zscript>

	<label value="step" />
	<chart id="step" title="Step Chart" width="500" height="250"
		type="step" threeD="false" fgAlpha="128" onClick="drilldown()" />
	<zscript>
  step.setModel(datemodel);
</zscript>
</vbox>

Charts based on HiLo Model

Type	Model	3D
`candlestick`	`HiLoModel`	x
`hilow`	`HiLoModel`	x

The data model needs this input data:

date
open
high
low
close
volume

<vbox>
<zscript>
HiLoModel hilomodel = new SimpleHiLoModel();
long d = new Date().getTime();
hilomodel.addValue(new Date(d),  new Double(45.5),  new Double(54.2), new Double(19.9), new Double(42.8), new Double(20));
hilomodel.addValue(new Date(d+1000),  new Double(46.5),  new Double(55.2),  new Double(43.8), new Double(50.9),   new Double(32));
hilomodel.addValue(new Date(d+2000),  new Double(47.5),  new Double(56.2),  new Double(44.8), new Double(51.9),   new Double(33));
hilomodel.addValue(new Date(d+3000),  new Double(48.5),  new Double(57.2),  new Double(45.8), new Double(52.9),   new Double(34));
hilomodel.addValue(new Date(d+4000),  new Double(49.5),  new Double(58.2),  new Double(46.8), new Double(53.9),   new Double(35));
hilomodel.addValue(new Date(d+5000),  new Double(50.5),  new Double(59.2),  new Double(47.8), new Double(54.9),   new Double(36));
hilomodel.addValue(new Date(d+6000),  new Double(51.5),  new Double(60.2),  new Double(48.8), new Double(55.9),   new Double(37));
hilomodel.addValue(new Date(d+7000),  new Double(52.5),  new Double(61.2),  new Double(49.8), new Double(56.9),   new Double(38));
hilomodel.addValue(new Date(d+8000),  new Double(53.5),  new Double(62.2),  new Double(50.8), new Double(57.9),   new Double(39));
hilomodel.addValue(new Date(d+9000),  new Double(54.5),  new Double(63.2),  new Double(51.8), new Double(58.9),   new Double(40));
hilomodel.addValue(new Date(d+10000),  new Double(55.5),  new Double(64.2),  new Double(52.8), new Double(59.9),   new Double(41));
hilomodel.addValue(new Date(d+11000),  new Double(56.5),  new Double(65.2),  new Double(53.8), new Double(60.9),   new Double(42));
hilomodel.addValue(new Date(d+12000),  new Double(57.5),  new Double(66.2),  new Double(54.8), new Double(61.9),   new Double(43));
hilomodel.addValue(new Date(d+13000),  new Double(58.5),  new Double(67.2),  new Double(55.8), new Double(62.9),   new Double(44));
hilomodel.addValue(new Date(d+14000),  new Double(59.5),  new Double(68.2),  new Double(56.8), new Double(63.9),   new Double(45));
hilomodel.addValue(new Date(d+15000),  new Double(60.5),  new Double(69.2),  new Double(57.8), new Double(64.9),   new Double(46));
hilomodel.addValue(new Date(d+16000),  new Double(61.5),  new Double(70.2),  new Double(58.8), new Double(65.9),   new Double(47));
hilomodel.addValue(new Date(d+17000),  new Double(62.5),  new Double(71.2),  new Double(59.8), new Double(66.9),   new Double(48));
hilomodel.addValue(new Date(d+18000),  new Double(63.5),  new Double(72.2),  new Double(60.8), new Double(67.9),   new Double(49));
</zscript>

	<label value="candlestick" />
	<chart id="candlestick" title="Candlestick Chart" width="500"
		height="250" type="candlestick" threeD="false" fgAlpha="128"
		onClick="drilldown()" />
	<zscript>
  candlestick.setModel(hilomodel);
</zscript>
</vbox>

Charts based on XYZ Model

<vbox>
<zscript>
XYZModel xyzmodel = new SimpleXYZModel();
xyzmodel.addValue("2001", new Integer(20), new Integer(120), new Integer(8));
xyzmodel.addValue("2001", new Integer(40), new Integer(135), new Integer(10));
xyzmodel.addValue("2001", new Integer(60), new Integer(140), new Integer(6));
xyzmodel.addValue("2001", new Integer(80), new Integer(160), new Integer(12));

xyzmodel.addValue("2002", new Integer(30), new Integer(120), new Integer(4));
xyzmodel.addValue("2002", new Integer(50), new Integer(135), new Integer(5));
xyzmodel.addValue("2002", new Integer(70), new Integer(140), new Integer(3));
xyzmodel.addValue("2002", new Integer(90), new Integer(160), new Integer(6));
</zscript>

	<label value="bubble" />
	<chart id="bubble" title="Bubble Chart" width="500" height="250"
		type="bubble" threeD="false" fgAlpha="128" onClick="drilldown()" />
	<zscript>
  bubble.setModel(xyzmodel);
</zscript>
</vbox>

Charts based on Wafer Model

<vbox>
<zscript><![CDATA[
final int xdim = 30;
final int ydim = 20;
final Random random = new Random();
WaferMapModel wafermodel = new WaferMapModel(xdim, ydim);
for (int x = 0; x < xdim; x++) {
	for (int y = 0; y < ydim; y++) {
		wafermodel.addValue(random.nextInt(5), x, y);
	}
}
]]></zscript>

	<label value="wafermap" />
	<chart id="wafermap" title="Wafer Map Chart" width="500"
		height="400" type="wafermap" threeD="false" fgAlpha="128"
		onClick="drilldown()" />
	<zscript>
  wafermap.setModel(wafermodel);
</zscript>
</vbox>

Charts based on Gantt Model

<chart id="gantt" title="Gantt Chart" width="700" height="400"
        type="gantt" threeD="false" fgAlpha="128" dateFormat="yyyy/MM/dd" >
    <zscript><![CDATA[
        import org.zkoss.zul.GanttModel.GanttTask;
         
        public Date date(int year, int month, int day) {
            final java.util.Calendar calendar = java.util.Calendar.getInstance();
            calendar.set(year, month-1, day);
            final Date result = calendar.getTime();
            return result;
        }
        //series, task (task description, start, end, complete percentage)
        GanttModel ganttmodel = new GanttModel();
        ganttmodel.addValue("Scheduled", new GanttTask("Write Proposal", date(2008,4,1), date(2008,4,5), 0.0));
        ganttmodel.addValue("Scheduled", new GanttTask("Obtain Approval", date(2008,4,9), date(2008,4,9), 0.0));
        ganttmodel.addValue("Scheduled", new GanttTask("Requirements Analysis", date(2008,4,10), date(2008,5,5), 0.0));
        ganttmodel.addValue("Scheduled", new GanttTask("Design Phase", date(2008,5,6), date(2008,5,30), 0.0));
        ganttmodel.addValue("Scheduled", new GanttTask("Design Signoff", date(2008,6,2), date(2008,6,2), 0.0));
        ganttmodel.addValue("Scheduled", new GanttTask("Alpha Implementation", date(2008,6,3), date(2008,7,31), 0.0));
        ganttmodel.addValue("Scheduled", new GanttTask("Design Review", date(2008,8,1), date(2008,8,8), 0.0));
        ganttmodel.addValue("Scheduled", new GanttTask("Revised Design Signoff", date(2008,8,10), date(2008,8,10), 0.0));
        ganttmodel.addValue("Scheduled", new GanttTask("Beta Implementation", date(2008,8,12), date(2008,9,12), 0.0));
        ganttmodel.addValue("Scheduled", new GanttTask("Testing", date(2008,9,13), date(2008,10,31), 0.0));
        ganttmodel.addValue("Scheduled", new GanttTask("Final Implementation", date(2008,11,1), date(2008,11,15), 0.0));
        ganttmodel.addValue("Scheduled", new GanttTask("Signoff", date(2008,11,28), date(2008,11,30), 0.0));
         
        ganttmodel.addValue("Actual", new GanttTask("Write Proposal", date(2008,4,1), date(2008,4,3), 0.0));
        ganttmodel.addValue("Actual", new GanttTask("Obtain Approval", date(2008,4,9), date(2008,4,9), 0.0));
        ganttmodel.addValue("Actual", new GanttTask("Requirements Analysis", date(2008,4,10), date(2008,5,15), 0.0));
        ganttmodel.addValue("Actual", new GanttTask("Design Phase", date(2008,5,15), date(2008,6,17), 0.0));
        ganttmodel.addValue("Actual", new GanttTask("Design Signoff", date(2008,6,30), date(2008,6,30), 0.0));
        ganttmodel.addValue("Actual", new GanttTask("Alpha Implementation", date(2008,7,1), date(2008,9,12), 0.0));
        ganttmodel.addValue("Actual", new GanttTask("Design Review", date(2008,9,12), date(2008,9,22), 0.0));
        ganttmodel.addValue("Actual", new GanttTask("Revised Design Signoff", date(2008,9,25), date(2008,9,27), 0.0));
        ganttmodel.addValue("Actual", new GanttTask("Beta Implementation", date(2008,8,12), date(2008,9,12), 0.0));
        ganttmodel.addValue("Actual", new GanttTask("Testing", date(2008,10,31), date(2008,11,17), 0.0));
        ganttmodel.addValue("Actual", new GanttTask("Final Implementation", date(2008,11,18), date(2008,12,5), 0.0));
        ganttmodel.addValue("Actual", new GanttTask("Signoff", date(2008,12,10), date(2008,12,11), 0.0));
        gantt.setModel(ganttmodel);
    ]]></zscript>
</chart>

Charts based on Wind Model

<vbox>
<zscript>
XYZModel windmodel = new SimpleXYZModel();
//series, date, direction (0-12), force(0-12)
windmodel.addValue("Wind!", new Long(date(2008, 1, 3).getTime()), new Double(0d), new Double(10.0));
windmodel.addValue("Wind!", new Long(date(2008, 1, 4).getTime()), new Double(1d), new Double(8.5));
windmodel.addValue("Wind!", new Long(date(2008, 1, 5).getTime()), new Double(2.0), new Double(10.0));
windmodel.addValue("Wind!", new Long(date(2008, 1, 6).getTime()), new Double(3.0), new Double(10.0));
windmodel.addValue("Wind!", new Long(date(2008, 1, 7).getTime()), new Double(4.0), new Double(7.0));
windmodel.addValue("Wind!", new Long(date(2008, 1, 8).getTime()), new Double(5.0), new Double(10.0));
windmodel.addValue("Wind!", new Long(date(2008, 1, 9).getTime()), new Double(6.0), new Double(8.0));
windmodel.addValue("Wind!", new Long(date(2008, 1, 10).getTime()), new Double(7.0), new Double(11.0));
windmodel.addValue("Wind!", new Long(date(2008, 1, 11).getTime()), new Double(8.0), new Double(10.0));
windmodel.addValue("Wind!", new Long(date(2008, 1, 12).getTime()), new Double(9.0), new Double(11.0));
windmodel.addValue("Wind!", new Long(date(2008, 1, 13).getTime()), new Double(10.0), new Double(3.0));
windmodel.addValue("Wind!", new Long(date(2008, 1, 14).getTime()), new Double(11.0), new Double(9.0));
windmodel.addValue("Wind!", new Long(date(2008, 1, 15).getTime()), new Double(12.0), new Double(11.0));
windmodel.addValue("Wind!", new Long(date(2008, 1, 16).getTime()), new Double(0.0), new Double(0.0));
</zscript>

	<label value="wind" />
	<chart id="wind" title="Wind Plot" width="700" height="400"
		type="wind" threeD="false" fgAlpha="128" onClick="drilldown()"
		dateFormat="yyyy/MM/dd" />
	<zscript>
  wind.setModel(windmodel);
</zscript>
</vbox>

Methods

Name	Description	Return Data Type
`getAreaListener`	Returns the renderer to render each area, or null if the default renderer is used.	`ChartAreaListener`
`getBgRGB`	Get the background color in int array (0: red, 1: green, 2:blue).	`int[]`
`getEngine`	Returns the implemetation chart engine.	`ChartEngine`
`getIntHeight`	Get the chart int width in pixel	`int`
`getIntWidth`	Get the chart int width in pixel	`int`
`getModel`	Returns the chart model associated with this chart, or null if this chart is not associated with any chart data model	`ChartModel`
`getPaneRGB`	Get the pane color in int array (0: red, 1: green, 2:blue).	`int[]`
`getTimeZone`	Returns the time zone that this Time Series Chart belongs to, or null if the default time zone is used.	`TimeZone`
`newChartEngine`	Instantiates the default chart engine	`ChartEngine`
`setAreaListener`	Sets the renderer which is used to render each area
`setEngine`	Sets the chart engine
`setModel`	Sets the chart model associated with this chart
`setTimeZone`	Sets the time zone that this Time Series Chart belongs to, or null if the default time zone is used
`smartDrawChart`	mark a draw flag to inform that this Chart needs update

Properties

Property	Description	Data Type	Default Value
`bgAlpha`	Sets the background alpha (transparency, 0 ~ 255).	`int`	`255`
`bgColor`	Sets the background color of the chart.It must be in `#RRGGBB` format (hexdecimal).	`String`	`null`
`fgAlpha`	Sets the foreground alpha (transparency, 0 ~ 255).	`int`	`255`
`height`	Sets height of chart, it must be a integer string	`String`	`200`
`orient`	Sets the chart orientation. Values: `vertical \| horizontal`	`String`	`vertical`
`paneAlpha`	Sets the pane alpha (transparency, 0 ~ 255).	`int`	`255`
`panelColor`	Sets the pane color of the chart.It must be `#RRGGBB` format (hexdecimal).	`String`	`null`
`period`	Sets the period used in Time Series Chart. Values : millisecond \| second \| minute \| \| hour \| day \| week \| month \| quarter \| year	`String`	`null`
`showLegend`	Sets the flag of showing the chart's legend	`boolean`	`true`
`showTooltiptext`	Sets the flag of showing the chart's tool tip text	`boolean`	`true`
`threeD`	Sets true to show three dimensional graph (If a type of chart got no 3d peer, this is ignored).	`boolean`	`false`
`title`	Sets the chart's title.	`String`	`null`
`type`	Set the chart's type Values: `pie \| ring \| bar \| line \| area \| stacked_bar` \| `stacked_`area \| `waterfall \| polar \| scatter \| time_series \| polar \| step_area` \| `step \| histogram \| candlestick \| hilow`	`String`	`null`
`width`	Sets width of chart, it must be a integer string	`String`	`400`
`xAxis`	Sets the label in xAxis.	`String`	`null`
`yAxis`	Sets the label in yAxis.	`String`	`null`

Supported Events

Name Event Type

onClick

[#MouseEvent org.zkoss.zk.ui.event.MouseEvent]

Description: Denotes user has clicked the component.

Use getX(), getY() method to get coordinates.

Use getArea() method to get the area component which user clicks on.

onClick event handling

If you want to catch the clicks onto chart elements, you can use this source code:

<zscript>
  void drilldown() {
  	String areaid = event.getArea();
  	if (areaid != null) {
	  	Area area = self.getFellow(areaid);
	  	alert(""+area.getAttribute("entity")+": "+area.getTooltiptext());
	}
  }
</zscript>

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