[Scilab-Dev] Documentation for Xcos
Adhitya Kamakshidasan
adhitya07 at gmail.com
Thu Feb 25 10:31:00 CET 2016
I've also filed a big report over here.
http://bugzilla.scilab.org/show_bug.cgi?id=14418
On 25-Feb-2016 2:58 pm, "adhitya" <adhitya07 at gmail.com> wrote:
> Hi,
>
> I'm doing this on Windows 10 with Java 7.
>
> I followed the instructions over here,
> https://wiki.scilab.org/ScilabWithinEclipse
>
> I'm currently using the Remote debugging option, to go through the files.
>
> Cheers,
>
> Adhitya
> On 25-Feb-2016 2:48 pm, "monika sharma" <[hidden email]
> <http:///user/SendEmail.jtp?type=node&node=4033566&i=0>> wrote:
>
>> Dear Adhitya,
>> Can you provide us your system specification and the steps you are
>> following for scilab compilation. I've provided a link
>> here
>> <https://wiki.scilab.org/Compiling%20Scilab%205.x%20under%20GNU-Linux%20Unix>.
>> Please go through the documents and let us know if you are following
>> anything apart from this.
>>
>> Regards,
>> Monika
>>
>> On Wed, Feb 24, 2016 at 12:39 PM, Adhitya Kamakshidasan <[hidden email]
>> <http:///user/SendEmail.jtp?type=node&node=4033566&i=1>> wrote:
>>
>>> Thanks for your reply,
>>>
>>> I used the function that you mentioned and created the following class.
>>>
>>> package org.scilab.modules.xcos;
>>>
>>> public class TestingXcos {
>>> public static void main(String args[]){
>>> Xcos.xcos(null, 0);
>>> }
>>> }
>>>
>>> However, I get a runtime exception, with the following message.
>>>
>>> Exception in thread "main" java.lang.ExceptionInInitializerError
>>> at org.scilab.modules.core.Scilab.<clinit>(Scilab.java:65)
>>> at org.scilab.modules.xcos.Xcos.<clinit>(Xcos.java:116)
>>> at org.scilab.modules.xcos.TestingXcos.main(TestingXcos.java:5)
>>> Caused by: java.lang.RuntimeException: XPathFactory#newInstance() failed
>>> to create an XPathFactory for the default object model:
>>> http://java.sun.com/jaxp/xpath/dom with the
>>> XPathFactoryConfigurationException:
>>> javax.xml.xpath.XPathFactoryConfigurationException:
>>> java.util.ServiceConfigurationError: javax.xml.xpath.XPathFactory:
>>> jar:file:/C:/Users/Adhitya/Documents/GitHub/scilab/Windows/thirdparty/saxon9he.jar!/META-INF/services/javax.xml.xpath.XPathFactory:2:
>>> Illegal configuration-file syntax
>>> at javax.xml.xpath.XPathFactory.newInstance(XPathFactory.java:102)
>>> at
>>> org.scilab.modules.commons.xml.ScilabXPathFactory.newInstance(ScilabXPathFactory.java:56)
>>> at
>>> org.scilab.modules.commons.xml.XConfiguration.<clinit>(XConfiguration.java:86)
>>> ... 3 more
>>>
>>>
>>> I've seen that there has been a similar issue in the past:
>>> http://bugzilla.scilab.org/show_bug.cgi?id=13854
>>>
>>> I also saw this bug related to saxon9he.jar over here:
>>> https://sourceforge.net/p/saxon/mailman/message/33221102/
>>>
>>> After that, I downgraded from Java 8 to Java 7 with the hopes of getting
>>> it to work. Still I get the same message.
>>>
>>> Am I missing something? Could you please help me out?
>>>
>>> Thanks,
>>>
>>> Adhitya
>>>
>>>
>>> On Fri, Feb 19, 2016 at 6:26 PM, Clément David-2 [via Scilab / Xcos -
>>> Mailing Lists Archives] <[hidden email]
>>> <http:///user/SendEmail.jtp?type=node&node=4033566&i=2>> wrote:
>>>
>>>> Hi,
>>>>
>>>> > ---- 1 ----
>>>> >
>>>> > As a part of my reverse engineering process, I have started from the
>>>> point where Xcos application
>>>> > is invoked, when the button is pressed in the MenuBar.
>>>> >
>>>> > If possible, could you explain the StoreCommand() function? I see
>>>> that all incoming commands are
>>>> > en-queued in the commandQueue, to be processed one by one. But where
>>>> in the code, is the command
>>>> > getting de-queued for parsing?
>>>>
>>>> In fact, the commandQueue is the way to communicate to the Scilab
>>>> interpreter engine. When you
>>>> request an execution, the command is stored on the queue and latter the
>>>> engine pick the command and
>>>> execute it.
>>>>
>>>> When hitting the "Play" button on xcos, we push the diagram to the
>>>> Scilab workspace and put an
>>>> 'xcos_simulate' call to be executed.
>>>>
>>>>
>>>> > ---- 2 ----
>>>> >
>>>> > The command that is given in /etc/main_menubar.xml for opening Xcos
>>>> is
>>>> >
>>>> > if with_mode ('xcos') then xcos();
>>>> > else disp(gettext('Please install xcos module'))
>>>> >
>>>> > Would it be possible for you to point where xcos() is invoked after
>>>> interpretation and parsing?
>>>> >
>>>> > Hypothetically for instance, if I were to create a new method in
>>>> Java, so that I can see the Block
>>>> > Diagram Editor, like this -
>>>> >
>>>> > public static void main (String args[]){
>>>> > Xcos xcos = new Xcos(); //Assuming I can write something like
>>>> this
>>>> > }
>>>> >
>>>> > If this is possible, I would like to know, which is that particular
>>>> 'XCos' Class that can allow me
>>>> > to do this?
>>>> On the xcos module, there is an 'Xcos.java' file that contains some
>>>> annotated methods exported to C.
>>>> For instance you can take a look at the Xcos#xcos() method.
>>>>
>>>> --
>>>> Clément
>>>>
>>>> > On Mon, Feb 1, 2016 at 1:02 PM, Clément David-2 [via Scilab / Xcos -
>>>> Mailing Lists Archives]
>>>> > <[hidden email]> wrote:
>>>>
>>>> > > Hi Adhitya,
>>>> > >
>>>> > > The code is *the* reference but for more internal views I suggest
>>>> you to read these documents :
>>>> > >
>>>> > > * R. NIKOUKHAH AND S. STEER , Scicos a dynamic system builder and
>>>> simulator, IEEE INTERNATIONAL
>>>> > > CONFERENCE ON CACSD, DEARBORN , MICHIGAN , 1996.
>>>> > > * S. STEER , R. NIKOUKHAH , Scicos: a hybrid system formalism,
>>>> ESS’99, E RLANGEN , GERMANY ,
>>>> > > 1999.
>>>> > > * Masoud NAJAFI thesis , The Numerical Solver for the Simulation of
>>>> the Hybrid Dynamical
>>>> > > Systems
>>>> > > , 2005 .
>>>> > >
>>>> > > And for understanding what's behind each block, take a look at the
>>>> Scilab documentation, and
>>>> > > ScilabTec presentations.
>>>> > >
>>>> > > Regards,
>>>> > >
>>>> > > --
>>>> > > Clément
>>>> > >
>>>> > >
>>>> > > Le vendredi 29 janvier 2016 à 23:31 -0700, adhitya a écrit :
>>>> > >
>>>> > > > Hi,
>>>> > > >
>>>> > > > My name is Adhitya Kamakshidasan and I'm an Intern at FOSSEE, IIT
>>>> Bombay.
>>>> > > >
>>>> > > > We are trying to develop a standalone version of Xcos, that is
>>>> completely
>>>> > > > web-based.
>>>> > > >
>>>> > > > I would like to know if there is any documentation with respect
>>>> to how Xcos
>>>> > > > has been written - Flowcharts, Main methods, PDF's, etc.
>>>> > > >
>>>> > > > Currently, I'm trying to reverse-engineer the code, by slowly
>>>> moving through
>>>> > > > the code, and removing the parts that are not related to Xcos.
>>>> However, this
>>>> > > > is taking a lot of time.
>>>> > > >
>>>> > > > We would like your support in this regard.
>>>> > > >
>>>> > > > Thanks,
>>>> > > >
>>>> > > > Adhitya Kamakshidasan
>>>> > > >
>>>> > > >
>>>> > > >
>>>> > > > --
>>>> > > > View this message in context:
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>>>> > > html
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>>
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