package smart.jrsoft.chart;
import java.awt.Color;
import java.io.FileOutputStream;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.data.xy.XYSeriesCollection;
import org.jfree.ui.RectangleInsets;
import javax.servlet.http.*;
/**
* @author Sychallenger
*/
public class DrawLine {
private static DrawLine instance = null; // 画折线图的实例
private String title = "折线图实例"; // 折线图标题
private String XTitle = "横柱标题"; // 折线图横坐标题目
private String YTitle = "纵柱标题"; // 折线图纵坐标题目
private int width = 800; // 图片宽度
private int height = 450; // 图片高度
private String fileName = "d:\\temp.jpg"; // 暂时保存的图片名称
private boolean isV = true; // 是否垂直线显示
private Color bgColor = Color.WHITE; // 图像背景颜色
private Color foreColor = Color.lightGray; // 会折线图区域背景颜色
private Color spaceLineColor = Color.white; // 间隔线颜色
private XYPointList xyList=null;
private FileOutputStream fosJpg = null; // 生成折线图的输出流
private XYSeriesCollection xyseriescollection = new XYSeriesCollection(); // 点序列集合
/**
* 获取该类单一对象
* @return 该类事例
*/
public static synchronized DrawLine getInstance() {
if (instance == null)
instance = new DrawLine();
return instance;
}
/**
* 设置坐标集合名称 用于存放画折线图的点
* @param str 坐标集合名称
* @return 成功 true
*/
public boolean setXYPointList(String str){
if(this.xyList!=null){
this.xyList=null;
}
this.xyList=new XYPointList(str);
return true;
}
/**
* 添加点集
* @return 成功 true
*/
public boolean addPointList(){
if(this.xyList==null){
return false;
}
this.xyseriescollection.addSeries(this.xyList.getXYSeries());
return true;
}
/**
* 给坐标集合添加点坐标
* @param xValue x坐标值
* @param yValue y坐标值
* @return 成功 true 失败 false
*/
public boolean addPoint(double xValue,double yValue){
if(this.xyList==null){
return false;
}
this.xyList.add(xValue,yValue);
return true;
}
/**
* 设置初始化参数
*/
public void init(){
setTitle("折线图实例");
setXTitle("横柱标题");
setYTitle("纵柱标题");
setWidth(800);
setHeight(450);
setFileName("d:\\temp.jpg");
setIsV(true);
setBgColor(Color.white);
setForeColor(Color.lightGray);
setSpaceLineColor(Color.white);
}
/**
* 恢复默认值
*/
public void reset(){
init();
}
/**
* 设置图像标题名称
* @param title 图像标题名称
*/
public void setTitle(String title) {
this.title = title;
}
/**
* 设置图像的水平坐标名称
* @param title 水平坐标名称
*/
public void setXTitle(String title) {
this.XTitle = title;
}
/**
* 设置图像的垂直坐标的名称
* @param title 图像的垂直坐标的名称
*/
public void setYTitle(String title) {
this.YTitle = title;
}
/**
* 设置图像的宽度
* @param width 图像的宽度
*/
public void setWidth(int width) {
this.width = width;
}
/**
* 设置图像的宽度
* @param width 图像的宽度
*/
public void setHeight(int height) {
this.height = height;
}
/**
* 设置图像高度
* @param height
*/
public void setXTitle(int height) {
this.height = height;
}
/**
* 设置保存文件名称
* @param fileName 保存文件名称
*/
private void setFileName(String fileName) {
this.fileName = fileName;
}
/**
* 设置绘水平图还是垂直图
* @param isV 水平图还是垂直图
*/
public void setIsV(boolean isV) {
this.isV = isV;
}
/**
* 设置背景颜色
* @param color 背景颜色
*/
public void setBgColor(Color color){
this.bgColor=color;
}
/**
* 设置背景颜色
* @param red red色素值
* @param green green色素值
* @param blue blue色素值
*/
public void setBgColor(int red,int green,int blue){
this.bgColor=new Color(red,green,blue);
}
/**
* 改变背景颜色
* @param str 背景颜色描述 比如:BLACK black blue Blue 等
*/
public void setBgcolor(String str){
this.bgColor=ChangeColor.getColor(str);
}
/**
* 设置绘折线图区域的背景颜色
* @param color 绘折线图区域的背景颜色
*/
public void setForeColor(Color color){
this.foreColor=color;
}
/**
* 设置绘折线图区域的背景颜色
* @param red red色素值
* @param green green色素值
* @param blue blue色素值
*/
public void setForeColor(int red,int green,int blue){
this.foreColor=new Color(red,green,blue);
}
/**
* 设置绘折线图区域的背景颜色
* @param str 背景颜色描述 比如:BLACK black blue Blue 等
*/
public void setForeColor(String str){
this.foreColor=ChangeColor.getColor(str);
}
/**
* 设置间隔线的颜色
* @param red red色素值
* @param green green色素值
* @param blue blue色素值
*/
public void setSpaceLineColor(int red,int green,int blue){
this.spaceLineColor=new Color(red,green,blue);
}
/**
* 设置间隔线的颜色
* @param color 间隔线的颜色
*/
public void setSpaceLineColor(Color color){
this.spaceLineColor=color;
}
/**
* 设置绘折线图区域的背景颜色
* @param str 背景颜色描述 比如:BLACK black blue Blue 等
*/
public void setSpaceLineColor(String str){
this.spaceLineColor=ChangeColor.getColor(str);
}
/**
* 添加点集
* @param xyPointList 点集
*/
// public void addXYPointList(XYPointList xyPointList) {
// this.xyseriescollection.addSeries(xyPointList.getXYSeries());
// }
/**
* 按文件路径保存生成的折线图
* @param fileName 保存文件名称 文件名称为（使用路径为）: d:\\web\test.jpg
* @return 成功:true 失败:false
*/
public boolean saveAbs(String fileName) {
JFreeChart jfreechart = null;
if (fileName != null) {
this.setFileName(fileName);
}
if (isV == true) {
jfreechart = ChartFactory.createXYLineChart(this.title,
this.XTitle, this.YTitle,
xyseriescollection,
PlotOrientation.VERTICAL, true, true, false);
}
else {
jfreechart = ChartFactory.createXYLineChart(this.title,
this.XTitle, this.YTitle,
xyseriescollection,
PlotOrientation.HORIZONTAL, true, true, false);
}
jfreechart.setBackgroundPaint(this.bgColor);
XYPlot xyplot = (XYPlot) jfreechart.getPlot();
xyplot.setBackgroundPaint(this.foreColor);
xyplot.setAxisOffset(new RectangleInsets(5D, 5D, 5D, 5D));
xyplot.setDomainGridlinePaint(this.spaceLineColor);
xyplot.setRangeGridlinePaint(this.spaceLineColor);
XYLineAndShapeRenderer xylineandshaperenderer = (XYLineAndShapeRenderer)
xyplot
.getRenderer();
xylineandshaperenderer.setShapesVisible(true);
xylineandshaperenderer.setShapesFilled(true);
NumberAxis numberaxis = (NumberAxis) xyplot.getRangeAxis();
numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
FileOutputStream fosJpg = null;
try {
fosJpg = new FileOutputStream(fileName);
ChartUtilities.writeChartAsJPEG(fosJpg, 100, jfreechart, this.width, this.height,
null);
}
catch (Exception e) {
}
finally {
this.xyseriescollection.removeAllSeries();
try {
fosJpg.close();
}
catch (Exception e) {
}
}
return true;
}
/**
* 按网站路径保存生成的折线图
* @param request 在jsp页面中的request对象 用于获取文件路径
* @param fileName 保存文件名称 文件名称必须使用站点的绝对路径 如 : “/admin/test.jpg"
* @return true 成功 false 失败
*/
public boolean saveWebFile(HttpServletRequest request, String fileName) {
JFreeChart jfreechart = null;
if (fileName != null) {
this.setFileName(fileName);
}
fileName = request.getRealPath("") + fileName;
if (isV == true) {
jfreechart = ChartFactory.createXYLineChart(this.title,
this.XTitle, this.YTitle,
xyseriescollection,
PlotOrientation.VERTICAL, true, true, false);
}
else {
jfreechart = ChartFactory.createXYLineChart(this.title,
this.XTitle, this.YTitle,
xyseriescollection,
PlotOrientation.HORIZONTAL, true, true, false);
}
jfreechart.setBackgroundPaint(this.bgColor);
XYPlot xyplot = (XYPlot) jfreechart.getPlot();
xyplot.setBackgroundPaint(this.foreColor);
xyplot.setAxisOffset(new RectangleInsets(5D, 5D, 5D, 5D));
xyplot.setDomainGridlinePaint(this.spaceLineColor);
xyplot.setRangeGridlinePaint(this.spaceLineColor);
XYLineAndShapeRenderer xylineandshaperenderer = (XYLineAndShapeRenderer)
xyplot
.getRenderer();
xylineandshaperenderer.setShapesVisible(true);
xylineandshaperenderer.setShapesFilled(true);
NumberAxis numberaxis = (NumberAxis) xyplot.getRangeAxis();
numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
FileOutputStream fosJpg = null;
try {
fosJpg = new FileOutputStream(fileName);
ChartUtilities.writeChartAsJPEG(fosJpg, 100, jfreechart, this.width, this.height,
null);
}
catch (Exception e) {
}
finally {
this.xyseriescollection.removeAllSeries();
try {
fosJpg.close();
}
catch (Exception e) {
}
}
return true;
}
public static void main(String[] args) {
//1.生成画折线图的类对象
DrawLine drawLine = DrawLine.getInstance();
//2.添加点集
drawLine.setXYPointList("点集一");
drawLine.addPoint(1.0D, 1.0D);
drawLine.addPoint(2D, 4D);
drawLine.addPoint(3D, 3D);
drawLine.addPoint(4D, 5D);
drawLine.addPoint(6D, 7D);
drawLine.addPoint(7D, 7D);
drawLine.addPoint(8D, 8D);
drawLine.addPointList();
drawLine.setXYPointList("点集二");
drawLine.addPoint(5.0D, 1.0D);
drawLine.addPoint(2D, 3D);
drawLine.addPoint(5D, 3D);
drawLine.addPoint(2D, 5D);
drawLine.addPoint(3D, 2D);
drawLine.addPoint(7D, 1D);
drawLine.addPoint(3D, 8D);
drawLine.addPointList();
//3.设置图片属性
drawLine.init();
drawLine.setTitle("测试折线图");
drawLine.setXTitle("测试折线图横坐标");
drawLine.setYTitle("测试折线图纵坐标");
drawLine.setBgColor(Color.white);
drawLine.setForeColor(Color.lightGray);
drawLine.setSpaceLineColor(Color.white);
drawLine.setWidth(800);
drawLine.setHeight(450);
//4.保存图片
drawLine.saveAbs("e:\\DrawLine.jpg");
}
}
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