Hello, I known nothing about Tex, but did you try your formula directly with Google Charts with some tools like curl or made a test page based on http://code.google.com/intl/fr/apis/chart/docs/post_requests.html When you are able to made it directly, then you can retry with {formula} macro. Arnaud. 2010/4/27 Marine JULIAN <[email protected]>:

Hello everybody !

Sorry to send it again but I really need to know if there is a way to resolve either the googlecharts renderer issue or my native renderer problem... I'm working on xwiki for a french scientist research lab which needs to be able to render formulas (equations, matrics...) in wiki pages (for some research papers). If I won't find a solution, I will regret to have to stop to work on xwiki and find an other wiki... Though, until now, xwiki was perfect for us... This, I'll be very grateful to someone for looking at my issues and so for helping me !!

Marine

2010/4/23 Marine JULIAN <[email protected]>

...

Hello,

As I didn't find a solution about my native renderer problem issue, so I tried the google charts API one. Unfortunatly, when I write more than a certain number (not too many) of characters in formula tags, I have an error. Instead of using the google charts renderer, the snuggletex one is used... For instance when I wrote this simple code : {{formula}} 111111111111111111111111111111\\ 111111111111111111111111111111\\ 111111111111111111111111111111\\ 111111111111111111111111111111\\ 111111111111111111111111111111\\ 111111111111111111111111111111\\ 111111111111111111111111111111\\ 111111111111111111111111111111 {{/formula}} All break lines (\\) weren't rendered. But ! If I write only the four first lines, all is fine. Is this a know issue ? What can I do ?

Last question :    : When my wiki is local, can it make external HTTP ? Because, When I want to use the mathtran renderer I have this error : 2010-04-23 15:49:26,238 [ http://localhost:8080/xwiki/bin/tex/Public/FormulaMacro Again/440bdc8f8001d9d387dbb95e1f1328998c35678a03e22bbf8eb747dc9de8a34d] ERROR web.XWikiAction                 - Connection aborted

See Google Charts renderer error lines :  2010-04-23 12:04:37,463 [ http://localhost:8080/xwiki/bin/view/Public/FormulaMacroAgain] ERROR formula.FormulaMacro - Invalid renderer: [googlecharts]. Falling back to the safe renderer.org.xwiki.component.manager.ComponentLookupException: Failed to render formula using [googlecharts] renderer         at org.xwiki.rendering.internal.macro.formula.FormulaMacro.render(FormulaMacro.java:162)         at org.xwiki.rendering.internal.macro.formula.FormulaMacro.execute(FormulaMacro.java:112)         at org.xwiki.rendering.internal.macro.formula.FormulaMacro.execute(FormulaMacro.java:57)         at org.xwiki.rendering.internal.transformation.MacroTransformation.transformOnce(MacroTransformation.java:175)         at org.xwiki.rendering.internal.transformation.MacroTransformation.transform(MacroTransformation.java:120)         at org.xwiki.rendering.internal.transformation.DefaultTransformationManager.performTransformations(DefaultTransformationManager.java:72)         at com.xpn.xwiki.doc.XWikiDocument.performSyntaxConversion(XWikiDocument.java:5696)         at com.xpn.xwiki.doc.XWikiDocument.performSyntaxConversion(XWikiDocument.java:5671)         at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:626)         at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:595)         at com.xpn.xwiki.api.Document.getRenderedContent(Document.java:497)         at sun.reflect.GeneratedMethodAccessor236.invoke(Unknown Source)         at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)         at java.lang.reflect.Method.invoke(Unknown Source)         at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:389)         at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:378)         at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:270)         at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:252)         at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:332)         at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:336)         at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:191)         at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:156)         at com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRenderer.java:116)         at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1710)         at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1631)         at com.xpn.xwiki.web.Utils.parseTemplate(Utils.java:123)         at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:224)         at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)         at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)         at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)         at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)         at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)         at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)         at com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:152)         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)         at com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:295)         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)         at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)         at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:327)         at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126)         at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:109)         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)         at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:68)         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)         at com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:295)         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)         at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)         at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)         at org.mortbay.jetty.Server.handle(Server.java:326)         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:536)         at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:930)         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:747)         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:405)         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

-- Marine JULIAN

-- Marine JULIAN _______________________________________________ users mailing list [email protected] http://lists.xwiki.org/mailman/listinfo/users

I think is not Google Charts maximum formula length limit but HTTP GET limit. Try in HTTP POST Arnaud. 2010/4/28 Marine JULIAN <[email protected]>:

Hi Arnaud,

Thanks for your answer. I tried directly with Google Charts and, indeed, I had the same error. So, the issue is not owing to xwiki but to Google Charts. In fact, I discovered that Google Charts has a maximum formula length of 200 characters. Perhaps someone could add it to the documentation of Formula Macro. Because, when we exceed this maximum with {formula} macro, nothing tells us that we switch on SnuggleTex renderer.

Marine.

...

Hello,

I known nothing about Tex, but did you try your formula directly with Google Charts with some tools like curl or made a test page based on http://code.google.com/intl/fr/apis/chart/docs/post_requests.html When you are able to made it directly, then you can retry with {formula} macro.

-- View this message in context: http://xwiki.475771.n2.nabble.com/Formula-Macro-rendering-methods-tp4906580p... Sent from the XWiki- Users mailing list archive at Nabble.com. _______________________________________________ users mailing list [email protected] http://lists.xwiki.org/mailman/listinfo/users

Hi ! I've always had this infinite loading for the native renderer with this configuration : XWiki enterprise 2.1.25683 standalone, Windows 7, TeXLive and ImageMagick. I tried on an other machine with Windows XP, XWiki Enterprise (Manager) 2.2.6.28650, MikteK (http://miktex.org/) and ImageMagick. And no infinite loading !... But I had an error : ERROR formula.FormulaMacro - Invalid renderer: [native]. Falling back to the safe renderer. org.xwiki.component.manager.ComponentLookupException: Failed to render formula using [native] renderer at org.xwiki.rendering.internal.macro.formula.FormulaMacro.render(FormulaMacro.java:162) ... etc It's quite weird because I just modified the macro.formula.renderer=native line in the file WEB-INF/xwiki.properties... Does someone already have this error ? Marine Julian wrote:

Now, my main problem is that the native method doesn't work... I put in the build.properties the "macro.formula.renderer = native" lign. And, like you advice me, I installed TeXLive and ImageMagick (they are in the path's search system, I checked the three calls "latex", "dvips" and "convert" in my consol). But, when I try some equations (even basic ones), my wiki seems to "load" over and over without result. It's like it can't call external programs but doesn't notice and continues to do it again. Thus, when I click on "Save & Visualize", it stays on the edit page, seems to do something again and again and so it doesn't go to the view page. Do I miss some steps ?

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Hi ! I'm sorry for digging up my topic again and again but I really don't know what to do to solve my issue. Isn't there someone who can reproduce this error ? Or it is that there is no one who's able to tell me if the Formula Macro always supports the native renderer ? Thank you again for helping me. Marine Marine Julian wrote:

Hello everybody,

Does the Formula Macro always support the native renderer ? Indeed, I tried to use it with an other configuration (the third one !!!) : Debian, TexLive, ImageMagick, XEM 2.3. But I had again the same error... Here it is : ERROR formula.FormulaMacro - Invalid renderer: [native]. Falling back to the safe renderer. org.xwiki.component.manager.ComponentLookupException: Failed to render formula using [native] renderer at org.xwiki.rendering.internal.macro.formula.FormulaMacro.render(FormulaMacro.java:162) ... etc

Besides, is there a way to redefine the "safe renderer" ? I would like it to be googlecharts method. The snuggletex method is too limited...

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