Re: jpype with JFreeChart, anyone interested to help?
On Jan 14, 8:25 pm, oyster [EMAIL PROTECTED] wrote: Thanx However I knew Chaco and matplotlib, and I use matplotlib during my school days. And as I have pointed out, they are for plot, but not chart. If you don't know the difference between plot and chart, you can have a look at athttp://www.jfree.org/jfreechart,http://www.rmchart.com Yes, it is true we can use plot lib to draw chart, but that is tedious. What are the chart types that are missing? Or do you find that the handling of categorical data is generally lacking? Charting and plotting are quite related, and I think you might get better traction trying to add the exact chart and axis types that you need to an existing package rather than starting yet another plotting package for Python. :) -Peter -- http://mail.python.org/mailman/listinfo/python-list
jpype with JFreeChart, anyone interested to help?
As you may know, there is no beautiful and free chart(not plot, you can find the examples at http://www.jfree.org/jfreechart, http://www.rmchart.com) module for python than runs on windows/linux/mac osx. On the other hand, there is a living package(http://www.jfree.org/jfreechart) for java, and it is nice. So what about make the interface to JFreeChart via jpype(http://jpype.sourceforge.net), or rewrite JFreeChart in and for Python to kick off JVM? I have tried this, but since I don't know Java, I did not go further. If anyone can help me with the following code, or organzie a py_jfreechart team, or put up a pyFreeChart team, that would be great. Thanks [code] import jpype p=r'e:\Java\j2re1.4.0\bin\client\jvm.dll' jpype.startJVM(p, r'-Djava.class.path=h:\jfreechart-1.0.9\lib\jfreechart-1.0.9.jar' ) pkg=jpype.JPackage(org.jfree.data) print pkg.DefaultKeyedValues print pkg.DefaultKeyedValues.DefaultKeyedValues print pkg.DefaultKeyedValues.DefaultKeyedValues.DefaultKeyedValues jc=jpype.JClass(org.jfree.data.DefaultKeyedValues) [/code] [msg] Java package org.jfree.data.DefaultKeyedValues Java package org.jfree.data.DefaultKeyedValues.DefaultKeyedValues Java package org.jfree.data.DefaultKeyedValues.DefaultKeyedValues.DefaultKeyedV alues Traceback (most recent call last): File H:\jfreechart-1.0.9\lib\b.py, line 11, in module jc=jpype.JClass(org.jfree.data.DefaultKeyedValues) File H:\jfreechart-1.0.9\lib\jpype\_jclass.py, line 54, in JClass raise _RUNTIMEEXCEPTION.PYEXC(Class %s not found % name) jpype._jexception.ExceptionPyRaisable: java.lang.Exception: Class org.jfree.data.DefaultKeyedValues not found [/msg] -- http://mail.python.org/mailman/listinfo/python-list
Re: jpype with JFreeChart, anyone interested to help?
On Jan 14, 6:51 am, oyster [EMAIL PROTECTED] wrote: As you may know, there is no beautiful and free chart(notplot, you can find the examples athttp://www.jfree.org/jfreechart,http://www.rmchart.com) module for python than runs on windows/linux/mac osx. Actually, may I humbly suggest two: Chaco: http://code.enthought.com/chaco/gallery/index.shtml matplotlib: http://matplotlib.sourceforge.net/ -Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: jpype with JFreeChart, anyone interested to help?
Thanx However I knew Chaco and matplotlib, and I use matplotlib during my school days. And as I have pointed out, they are for plot, but not chart. If you don't know the difference between plot and chart, you can have a look at at http://www.jfree.org/jfreechart, http://www.rmchart.com Yes, it is true we can use plot lib to draw chart, but that is tedious. 2008/1/15, [EMAIL PROTECTED] [EMAIL PROTECTED]: From: Peter Wang [EMAIL PROTECTED] To: python-list@python.org Date: Mon, 14 Jan 2008 07:58:02 -0800 (PST) Subject: Re: jpype with JFreeChart, anyone interested to help? On Jan 14, 6:51 am, oyster [EMAIL PROTECTED] wrote: As you may know, there is no beautiful and free chart(notplot, you can find the examples athttp://www.jfree.org/jfreechart,http://www.rmchart.com) module for python than runs on windows/linux/mac osx. Actually, may I humbly suggest two: Chaco: http://code.enthought.com/chaco/gallery/index.shtml matplotlib: http://matplotlib.sourceforge.net/ -Peter -- http://mail.python.org/mailman/listinfo/python-list
