java - 从 Mathematica 到 Java 的图像

Question

我尝试从 Mathematica 中获取图像。我尝试评估一些使用包中的方法生成图形的 Mathematica 代码。如果我将代码粘贴到 Mathematica Notebook，图形将正确生成。

所以我的问题:

如何将此图形转换为 Java？？？

这是我的示例代码:

ml = MathLinkFactory.createKernelLink("-linkmode launch -linkname 'F:\\APPS\\Wolfram
Research\\Mathematica\\7.0\\mathkernel.exe'");

ml.addPacketListener(new MyPacketListener());
ml.discardAnswer();
PacketListener stdoutPrinter = new PacketPrinter(System.out);
ml.addPacketListener(stdoutPrinter);
// In stringList there is all the INPUT for Mathematica
for (int i = 0; stringList.size() > i; i++) 
{
  System.out.println("Input" + "[" + i + "]" + stringList.get(i));
  ml.evaluate(stringList.get(i));
  ml.discardAnswer();   
 }
ml.close();



class MyPacketListener implements PacketListener {
public boolean packetArrived(PacketArrivedEvent evt)
        throws MathLinkException {
    if (evt.getPktType() == MathLink.TEXTPKT) {
        KernelLink ml = (KernelLink) evt.getSource();
        System.out.println(ml.getString());
    }
    return true;
 }

输出是:

<<CIP`ExperimentalData`
<<CIP`MLR`
dataSet = CIP`ExperimentalData`GetQSPRDataSet02[];
CIP`Graphics`ShowDataSetInfo[{"IoPairs", "InputComponents", "OutputComponents"},  
    dataSet];
Number of IO pairs = 2169


Number of input components = 130

Number of output components = 1

mlrInfo = CIP`MLR`FitMlr[dataSet];
mlrInfoInInputForm = InputForm[mlrInfo];
pointSize = 0.025;
CIP`MLR`ShowMlrSingleRegression[{"ModelVsDataPlot", "CorrelationCoefficient"}, 
  dataSet, mlrInfo, GraphicsOptionPointSize -> pointSize];

(*-Graphics-*)
(*
Out 1 : Correlation coefficient = 0.999373
*)
pointSize = 0.01;
CIP`MLR`ShowMlrSingleRegression[{"AbsoluteSortedResidualsPlot", 
   "AbsoluteResidualsStatistics", "RMSE"}, 
   dataSet, mlrInfo, GraphicsOptionPointSize -> pointSize];

(*-Graphics-

Definition of 'Residual (absolute)': Data - Model

                                                                        -1
Out 1 : Residual (absolute): Mean/Median/Maximum Value = 1.4 / 9.84 × 10   / 

             1
>   1.79 × 10

Root mean squared error (RMSE) = 2.063

*)

我如何获得这些 -Graphics- ？

感谢您的帮助!

Answer 1

J/Link 用户指南有很好的代码示例，用于将图形从 Mathematica 发送到 Java: http://reference.wolfram.com/mathematica/JLink/tutorial/CallingJavaFromMathematica.html#29556