Some examples of usage of Jfreechart

Public abstract class Abstractstatistic implements statistic {

/**
* Create a statistical graphic
*
* @param Columnkeys
* Key word Group
* @param data
* Data Array
* @param title
* Title
* @param session
* @param Rowkeys
* Line key word
* @param showtype
* @return
*/

Public String createstatisticimg (string[] Columnkeys, double[][] data,
String title, HttpSession session, string[] Rowkeys, string showtype) {
try {

Jfreechart chart = null;
if (Showtype.equals ("1")) {
Chart = Createbarchart3d (data,columnkeys,rowkeys,title);
}
if (Showtype.equals ("2")) {
Chart = Createlinechart (data,columnkeys,rowkeys,title);
}
if (Showtype.equals ("3")) {
Chart = Createareachart (data,columnkeys,rowkeys,title);
}
if (Showtype.equals ("4")) {
Chart = Createlinechart3d (data, Columnkeys, Rowkeys, title);
}
String filename = servletutilities.savechartaspng (chart, 800, 450,
NULL, session);
return filename;
catch (IOException e) {
TODO auto-generated Catch block
E.printstacktrace ();
}
Return "";
}

Public Jfreechart Createbarchart3d (double[][] data, string[] Columnkeys, string[] rowkeys,string title) {


Categorydataset DataSet = Datasetutilities.createcategorydataset (
Rowkeys, Columnkeys, data);

Jfreechart chart = Chartfactory.createbarchart3d (title,//"Distribution and Contrast map")
"", NULL, DataSet, Plotorientation.vertical, True, False,
FALSE);

Chart.setbackgroundpaint (Color.White)//Set whole picture background color
Categoryplot plot = Chart.getcategoryplot ();
Plot.setbackgroundpaint (Color.gray);//Set the background color of the graphics area
Set whether vertical gridlines are displayed
Plot.setdomaingridlinesvisible (TRUE);
Set whether horizontal gridlines are displayed
Plot.setrangegridlinesvisible (TRUE);
Categoryaxis Domainaxis = Plot.getdomainaxis ();
/*------To set the tilt of the X axis title----*
Domainaxis.setcategorylabelpositions (Categorylabelpositions.standard);
Domainaxis.setmaximumcategorylabellines (20);

Domainaxis.setticklabelfont (New Font ("bold", Font.plain, 12));

Plot.setdomainaxis (Domainaxis);

  valueaxis Rangeaxis = Plot.getrangeaxis ();
  //Sets the maximum distance between one Item and the top of the picture
  rangeaxis.setuppermargin (0.15);
  //set the distance between the lowest Item and the bottom of the picture
  rangeaxis.setlowermargin (0.15);
  plot.setrangeaxis (Rangeaxis);
  barrenderer3d renderer = new Barrenderer3d ();
  renderer.setbaseoutlinepaint (Color.Black);
  //Sets the Wall color <br>
  renderer.setwallpaint (Color.gray);
  //sets the color of each column
  renderer.setseriespaint (0, new color (255, 0, 0));
  renderer.setseriespaint (1, New Color (0, 0, 255));
  renderer.setseriespaint (2, New Color (0, 255, 0));

Outline the color of each column
Renderer.setseriesoutlinepaint (0, Color.Black);
Renderer.setseriesoutlinepaint (1, Color.Black);
Renderer.setseriesoutlinepaint (2, Color.Black);
Sets the distance between the parallel columns contained in each region
Renderer.setitemmargin (0.1);

Displays the value of each column and modifies the font properties of the value
Renderer.setseriesitemlabelgenerator (0,new
Standardcategoryitemlabelgenerator ("##%", Java.text.NumberFormat.getPercentInstance ());
Renderer
. Setitemlabelgenerator (New Standardcategoryitemlabelgenerator ());
Renderer.setitemlabelfont (New Font ("bold", Font.plain, 12));
Renderer.setitemlabelsvisible (TRUE);
Set the label display position, without adding this sentence will be displayed in the column body
Renderer.setpositiveitemlabelposition (New Itemlabelposition (
Itemlabelanchor.outside12, Textanchor.bottom_center));

Plot.setrenderer (renderer);
Set the transparency of the column <BR>
Plot.setforegroundalpha (0.6f);

Set area, sales location <BR>
Plot.setdomainaxislocation (Axislocation.bottom_or_left);
Plot.setrangeaxislocation (Axislocation.bottom_or_left);

return chart;

}


Public Jfreechart Createlinechart (double[][] data, string[] Columnkeys, string[] rowkeys,string title) {

Categorydataset DataSet = Datasetutilities.createcategorydataset (
Rowkeys, Columnkeys, data);

Jfreechart chart = Chartfactory.createlinechart (title,//"Regional distribution and contrast map"
"", NULL, DataSet, Plotorientation.vertical, True, False,
FALSE);
Categoryplot plot = Chart.getcategoryplot ();
Categoryaxis Domainaxis = Plot.getdomainaxis ();
/*------To set the tilt of the X axis title----*
Domainaxis.setcategorylabelpositions (CATEGORYLABELPOSITIONS.UP_90);
Domainaxis.setticklabelfont (New Font ("bold", Font.plain, 12));
return chart;
}

Public Jfreechart Createlinechart3d (double[][] data, string[] Columnkeys, string[] rowkeys,string title) {

Categorydataset DataSet = Datasetutilities.createcategorydataset (
Rowkeys, Columnkeys, data);

Jfreechart chart = Chartfactory.createlinechart3d (title,//"Regional distribution and contrast map"
"", NULL, DataSet, Plotorientation.vertical, True, False,
FALSE);
Categoryplot plot = Chart.getcategoryplot ();
Categoryaxis Domainaxis = Plot.getdomainaxis ();
/*------To set the tilt of the X axis title----*
Domainaxis.setcategorylabelpositions (CATEGORYLABELPOSITIONS.UP_90);
Domainaxis.setticklabelfont (New Font ("bold", Font.plain, 12));
return chart;
}

Public Jfreechart Createareachart (double[][] data, string[] Columnkeys, string[] rowkeys,string title) {
Categorydataset DataSet = Datasetutilities.createcategorydataset (
Rowkeys, Columnkeys, data);
Jfreechart chart = Chartfactory.createareachart (title, "Statistic Time", "Statistic Quantity", DataSet, Plotorientation.vertical, True, true, FALSE);
Chart.setbackgroundpaint (Color.White);
Categoryplot Categoryplot = (categoryplot) chart.getplot ();
Categoryplot.setforegroundalpha (0.5F);
Categoryplot.setaxisoffset (New Rectangleinsets (5D, 5 D, 5 D, 5D));
Categoryplot.setbackgroundpaint (Color.lightgray);
Categoryplot.setdomaingridlinesvisible (TRUE);
Categoryplot.setdomaingridlinepaint (Color.White);
Categoryplot.setrangegridlinesvisible (TRUE);
Categoryplot.setrangegridlinepaint (Color.White);
Categoryaxis Categoryaxis = Categoryplot.getdomainaxis ();
Categoryaxis.setcategorylabelpositions (CATEGORYLABELPOSITIONS.UP_45);
Categoryaxis.setlowermargin (0.0D);
Categoryaxis.setuppermargin (0.0D);
Categoryaxis.addcategorylabeltooltip ("Type 1", "the" "the");
Categoryaxis.addcategorylabeltooltip ("Type 2", "the second type.");
Categoryaxis.addcategorylabeltooltip ("Type 3", "the third type.");
Numberaxis Numberaxis = (numberaxis) categoryplot.getrangeaxis ();
Numberaxis.setstandardtickunits (Numberaxis.createintegertickunits ());
Numberaxis.setlabelangle (0.0D);
return chart;
}