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Index › Programming Questions & Help › Programs › What's wrong here

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What's wrong here? (Read 593 times)

javier.arantegui

What's wrong here?
Jan 15^th, 2008, 4:33pm

Hi!

First post here. I hope I addressing my question in the right place. I started with Processing just a few hours ago and I'm having an small problem with my sketch.

My sketch is simple. It draws a parametrical mathematical function (the response of a second order system to a unit step, if you are interested). The parametres are z and tao. When one of them changes, the function is redrawn. To change both parametres I use two sliders from the library ContolP5.

The sketch works fine when I run it from the Processing IDE. The problem is when I export it. The exported version draws the function, but it doesn't redraw it when I change the parametres using the sliders.

The exported version of the sketch is here: http://web.udl.es/usuaris/w3511782/applet/

My OS is Kubuntu 7.10. The versión of Processing is 0135BETA and:

javier@javier-desktop:~$ java -version
java version "1.6.0_03"
Java(TM) SE Runtime Environment (build 1.6.0_03-b05)
Java HotSpot(TM) Client VM (build 1.6.0_03-b05, mixed mode, sharing)

Any help will be greatly appreciated. Thanks,

Javier

nkelly16 YaBB Newbies Offline Posts: 15	Re: What's wrong here? Reply #1 - Jan 17^th, 2008, 3:08pm i'm fairly new to processing too, but you could try calling noLoop() in your setup() method. i think this is mean the program will only update the draw when the redraw() is called in the slider() method. just a suggestion.

javier.arantegui

Re: What's wrong here?
Reply #2 - Jan 17^th, 2008, 4:48pm

Thanks for the help. But it doesn't work Sad

If I put noLoop(), the sketch is executed only once (I think) and nothing happens. The sliders don't work.

The funny thing is that the applet works fine if I run it from a terminal using:

java -jar _2o_Orden.jar

Probably it will work in Windows or Mac OS X just double clicking on it. You can get the jar file from here:

http://web.udl.es/usuaris/w3511782/applet/_2o_Orden.jar

This is driving me crazy. It is so simple that I can't understand why it doesn't work.

Javier

nkelly16 YaBB Newbies Offline Posts: 15	Re: What's wrong here? Reply #3 - Jan 17^th, 2008, 5:27pm that .jar works fine on mac osx. what OS are u running?

javier.arantegui Ex Member	Re: What's wrong here? Reply #4 - Jan 17^th, 2008, 5:49pm I'm using Kubuntu 7.10, a Linux distribution based on Ubuntu. Why does it work alone but refuses to work inside the browser? I'd like to know...

JohnG

Re: What's wrong here?
Reply #5 - Jan 17^th, 2008, 6:05pm

Just look at the Java Console when the applet is running:

Code:

ControlP5 0.2.7 infos, comments, questions at http://www.sojamo.de/controlP5
### WARNING @ ControlP5.invokeField java.lang.IllegalAccessException: Class controlP5.ControlBroadcaster can not access a member of class _2o_Orden with modifiers ""
### WARNING @ ControlP5.invokeField java.lang.IllegalAccessException: Class controlP5.ControlBroadcaster can not access a member of class _2o_Orden with modifiers ""
### WARNING @ ControlP5.invokeField java.lang.IllegalAccessException: Class controlP5.ControlBroadcaster can not access a member of class _2o_Orden with modifiers ""
.. etc etc etc

javier.arantegui Ex Member	Re: What's wrong here? Reply #6 - Jan 17^th, 2008, 6:26pm Thank you. How could I forget the Java console? :-O It seems that the problem is the ControlP5 library so I will formulate my question in the Libraries subforum. Here: http://processing.org/discourse/yabb_beta/YaBB.cgi?board=LibraryProblems;action=display;num=1200591394 Thanks, Javier

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