正在寻找用Java绘制组织结构图的库
我有一个表示组织结构图的树结构，我需要以PDF格式输出树。我看过Prefuse、JFreeChart、yFiles和JGraph，但它们似乎都要求我编写一些逻辑。以前有人这样做过吗？有谁能推荐一个好的图书馆使用吗？试试AT&T的Graphviz 不确定“逻辑”是什么意思，但你必须在某个地方提供有关层次结构中父母和子女的数据。试试AT&T的Graphviz正在寻找用Java绘制组织结构图的库,java,pdf,graph,Java,Pdf,Graph,我有一个表示组织结构图的树结构，我需要以PDF格式输出树。我看过Prefuse、JFreeChart、yFiles和JGraph，但它们似乎都要求我编写一些逻辑。以前有人这样做过吗？有谁能推荐一个好的图书馆使用吗？试试AT&T的Graphviz 不确定“逻辑”是什么意思，但你必须在某个地方提供有关层次结构中父母和子女的数据。试试AT&T的Graphviz 不确定“逻辑”是什么意思，但您必须在某个地方提供层次结构中有关父级和子级的数据。您可以使用Jfree图表生成图形/树。我用过JFree聊天，很
不确定“逻辑”是什么意思，但您必须在某个地方提供层次结构中有关父级和子级的数据。您可以使用Jfree图表生成图形/树。我用过JFree聊天，很简单。你必须把数据放在2D数组中，然后把它传递给方法
/**
* A simple demonstration application showing how to create a bar chart.
* http://opengeekz.com
*/
public class CreateBarChart {
String aFileName="image1.jpg";
int width=250;
int height=200;
double quality=100;
JFreeChart chart=null;
/**
* Create bar chart for given data
* @param aFileName file name of image.
* @param width Width of image.
* @param height Height of image.
* @param quality Quality of image file .
*/
public CreateBarChart(String aFileName,int width,int height,double quality)
{
this.aFileName=aFileName;
this.width=width;
this.height=height;
this.quality=quality;
}
public CreateBarChart()
{
}
/**
* Accept 2D array for graph row denotes x axis,column denotes y axis.
* @param barchartdata 2D array for x axis, and y axis.
* @return CategoryDataset
*/
private static CategoryDataset createDataset(String barchartdata[][]) {
// row keys...
String series1 = "";
// column keys...
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
for(int i=barchartdata.length-1;i>=0;i--)
{
if(barchartdata[i][0]==null)
{
break;
}
else
{
String value_str=barchartdata[i][0];
value_str=value_str.replaceAll("#","");
float value=0;
value=Integer.parseInt(value_str);
dataset.addValue(value, series1,barchartdata[i][1]);
}
}
// create the dataset...
return dataset;
}
/**
*
* @param barchartdata 2D array for x axis, and y axis.
* @return JFreeChart object for data.
*/
public JFreeChart createChart(String barchartdata[][]) {
CategoryDataset dataset = createDataset(barchartdata);
chart = ChartFactory.createBarChart3D(
"", // chart title
"", // domain axis label
"", // range axis label
dataset, // data
PlotOrientation.VERTICAL, // orientation
false, // include legend
false, // tooltips?
false // URLs?
);
// NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
// set the background color for the chart...
chart.setBackgroundPaint(Color.white);
chart.setPadding(RectangleInsets.ZERO_INSETS);
// get a reference to the plot for further customisation...
CategoryPlot plot = chart.getCategoryPlot();
plot.setBackgroundPaint(Color.WHITE);
plot.setDomainGridlinePaint(Color.white);
plot.setDomainGridlinesVisible(true);
plot.setRangeGridlinePaint(Color.white);
plot.getDomainAxis().setCategoryMargin(0.0f);
// set the range axis to display integers only...
final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
// disable bar outlines...
BarRenderer renderer = (BarRenderer) plot.getRenderer();
renderer.setDrawBarOutline(true);
// set up gradient paints for series...
GradientPaint gp0 = new GradientPaint(
0.0f, 0.0f,new Color(0,118,112),
100.0f,100.0f,new Color(0,118,112)
);
renderer.setSeriesPaint(0, gp0);
CategoryAxis domainAxis = plot.getDomainAxis();
domainAxis.setCategoryLabelPositions(
CategoryLabelPositions.createUpRotationLabelPositions(Math.PI /5.0)
);
// OPTIONAL CUSTOMISATION COMPLETED.
try{
saveToFile(chart, aFileName);
}catch(Exception ex){ex.printStackTrace();}
return chart;
}
/**
* Save generated chart in jpg file.
* @param chart Object of JFreeChart class
* @param aFileName file name where jpg image to be saved.
* @throws FileNotFoundException
* @throws IOException
*/
private void saveToFile(JFreeChart chart,String aFileName)throws FileNotFoundException, IOException
{
BufferedImage img = draw(chart,width,height);
FileOutputStream fos = new FileOutputStream(aFileName);
JPEGImageEncoder encoder2 =JPEGCodec.createJPEGEncoder(fos);
JPEGEncodeParam param2 = encoder2.getDefaultJPEGEncodeParam(img);
param2.setQuality((float) quality, true);
encoder2.encode(img,param2);
fos.close();
} // saveToFile
/**
* Draw bar chat for JFreeChart object
* @param chart JFreeChart Object
* @param width Width of image
* @param height Height of Image
* @return Object of Buffered Image class
*/
private static BufferedImage draw(JFreeChart chart, int width, int height)
{
BufferedImage img =
new BufferedImage(width , height,
BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = img.createGraphics();
try{
chart.draw(g2, new Rectangle2D.Double(0, 0, width, height));
g2.dispose();
}catch(Exception ex){ex.printStackTrace();}
return img;
} // end draw
/**
*
* @param args
* @throws FileNotFoundException
* @throws IOException
*/
public static void main(String[] args) throws FileNotFoundException, IOException {
CreateBarChart demo = new CreateBarChart("f:/image.jpg",250,300,100);
String data[][]=new String[2][2];
data[0][0]="30";
data[0][1]="jan";
data[1][0]="20";
data[1][1]="feb";
demo.createChart(data);
demo.saveToFile(demo.chart,"iamge.jpg");
}
}
您可以使用生成Pdf。您可以使用Jfree图表生成图形/树。我用过JFree聊天，很简单。你必须把数据放在2D数组中，然后把它传递给方法
/**
* A simple demonstration application showing how to create a bar chart.
* http://opengeekz.com
*/
public class CreateBarChart {
String aFileName="image1.jpg";
int width=250;
int height=200;
double quality=100;
JFreeChart chart=null;
/**
* Create bar chart for given data
* @param aFileName file name of image.
* @param width Width of image.
* @param height Height of image.
* @param quality Quality of image file .
*/
public CreateBarChart(String aFileName,int width,int height,double quality)
{
this.aFileName=aFileName;
this.width=width;
this.height=height;
this.quality=quality;
}
public CreateBarChart()
{
}
/**
* Accept 2D array for graph row denotes x axis,column denotes y axis.
* @param barchartdata 2D array for x axis, and y axis.
* @return CategoryDataset
*/
private static CategoryDataset createDataset(String barchartdata[][]) {
// row keys...
String series1 = "";
// column keys...
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
for(int i=barchartdata.length-1;i>=0;i--)
{
if(barchartdata[i][0]==null)
{
break;
}
else
{
String value_str=barchartdata[i][0];
value_str=value_str.replaceAll("#","");
float value=0;
value=Integer.parseInt(value_str);
dataset.addValue(value, series1,barchartdata[i][1]);
}
}
// create the dataset...
return dataset;
}
/**
*
* @param barchartdata 2D array for x axis, and y axis.
* @return JFreeChart object for data.
*/
public JFreeChart createChart(String barchartdata[][]) {
CategoryDataset dataset = createDataset(barchartdata);
chart = ChartFactory.createBarChart3D(
"", // chart title
"", // domain axis label
"", // range axis label
dataset, // data
PlotOrientation.VERTICAL, // orientation
false, // include legend
false, // tooltips?
false // URLs?
);
// NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
// set the background color for the chart...
chart.setBackgroundPaint(Color.white);
chart.setPadding(RectangleInsets.ZERO_INSETS);
// get a reference to the plot for further customisation...
CategoryPlot plot = chart.getCategoryPlot();
plot.setBackgroundPaint(Color.WHITE);
plot.setDomainGridlinePaint(Color.white);
plot.setDomainGridlinesVisible(true);
plot.setRangeGridlinePaint(Color.white);
plot.getDomainAxis().setCategoryMargin(0.0f);
// set the range axis to display integers only...
final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
// disable bar outlines...
BarRenderer renderer = (BarRenderer) plot.getRenderer();
renderer.setDrawBarOutline(true);
// set up gradient paints for series...
GradientPaint gp0 = new GradientPaint(
0.0f, 0.0f,new Color(0,118,112),
100.0f,100.0f,new Color(0,118,112)
);
renderer.setSeriesPaint(0, gp0);
CategoryAxis domainAxis = plot.getDomainAxis();
domainAxis.setCategoryLabelPositions(
CategoryLabelPositions.createUpRotationLabelPositions(Math.PI /5.0)
);
// OPTIONAL CUSTOMISATION COMPLETED.
try{
saveToFile(chart, aFileName);
}catch(Exception ex){ex.printStackTrace();}
return chart;
}
/**
* Save generated chart in jpg file.
* @param chart Object of JFreeChart class
* @param aFileName file name where jpg image to be saved.
* @throws FileNotFoundException
* @throws IOException
*/
private void saveToFile(JFreeChart chart,String aFileName)throws FileNotFoundException, IOException
{
BufferedImage img = draw(chart,width,height);
FileOutputStream fos = new FileOutputStream(aFileName);
JPEGImageEncoder encoder2 =JPEGCodec.createJPEGEncoder(fos);
JPEGEncodeParam param2 = encoder2.getDefaultJPEGEncodeParam(img);
param2.setQuality((float) quality, true);
encoder2.encode(img,param2);
fos.close();
} // saveToFile
/**
* Draw bar chat for JFreeChart object
* @param chart JFreeChart Object
* @param width Width of image
* @param height Height of Image
* @return Object of Buffered Image class
*/
private static BufferedImage draw(JFreeChart chart, int width, int height)
{
BufferedImage img =
new BufferedImage(width , height,
BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = img.createGraphics();
try{
chart.draw(g2, new Rectangle2D.Double(0, 0, width, height));
g2.dispose();
}catch(Exception ex){ex.printStackTrace();}
return img;
} // end draw
/**
*
* @param args
* @throws FileNotFoundException
* @throws IOException
*/
public static void main(String[] args) throws FileNotFoundException, IOException {
CreateBarChart demo = new CreateBarChart("f:/image.jpg",250,300,100);
String data[][]=new String[2][2];
data[0][0]="30";
data[0][1]="jan";
data[1][0]="20";
data[1][1]="feb";
demo.createChart(data);
demo.saveToFile(demo.chart,"iamge.jpg");
}
}
您可以使用生成Pdf。我的意思是，我不想计算图表中给定行中可以容纳多少个节点。我想使用一个足够聪明的库来进行布局。我有所有的组织结构图数据。Graphviz就是这样-它为你做布局。我不确定你是否会对结果如此满意，因为我所看到的看起来不像是一个经典的组织结构图，但它内置了智能。我的意思是，我不想计算在我的图表中给定的行中可以容纳多少节点。我想使用一个足够聪明的库来进行布局。我有所有的组织结构图数据。Graphviz就是这样-它为你做布局。我不确定你是否会对结果如此满意，因为我所看到的看起来不像是一个经典的组织结构图，但它内置了智能。谢谢prakash。我会尝试一下，让你们知道它是否适合我。这是一个条形图的例子，用户要求提供组织结构图。两者都是不同的汉克斯·普拉卡什。我会尝试一下，让你们知道它是否适合我。这是一个条形图的例子，用户要求提供组织结构图。两者都不同