Processing 1.0 - Processing Discourse - why isnt working online?

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Index › Programming Questions & Help › Syntax Questions › why isnt working online

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why isnt working online? (Read 1373 times)

ifotinos YaBB Newbies Offline Posts: 36	why isnt working online? Feb 1^st, 2010, 9:15am i cant find why while it is runs ok localy, online it isnt i would be really greatful if u could help http://kerkyra.ionio.gr/~av200640/processing/

JR Full Member Offline Posts: 149	Re: why isnt working online? Reply #1 - Feb 1^st, 2010, 9:44am "A null PFont was passed to textFont()" Did you put the font in the data subdirectory?

koogy

Re: why isnt working online?
Reply #2 - Feb 1^st, 2010, 9:45am

the java console for my browser (firefox) says:

Caused by: java.lang.RuntimeException: A null PFont was passed to textFont()
...
at _1_2_10_8_final_for_web.show(_1_2_10_8_final_for_web.java:276)

i would check around line 276 of your code (the .java file that's generated, not your .pde).

that stacktrace in full:

Java Plug-in 1.6.0_18
Using JRE version 1.6.0_18-b07 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\koogy

java.lang.reflect.InvocationTargetException
at com.sun.deploy.util.DeployAWTUtil.invokeAndWait(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.runOnEDT(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.RuntimeException: A null PFont was passed to textFont()
at processing.core.PGraphics.textFont(PGraphics.java:2476)
at processing.core.PGraphics.textFont(PGraphics.java:2485)
at processing.core.PApplet.textFont(PApplet.java:7352)
at _1_2_10_8_final_for_web.show(_1_2_10_8_final_for_web.java:276)
at java.awt.Component.show(Unknown Source)
at java.awt.Component.setVisible(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable$3.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Exception: java.lang.reflect.InvocationTargetException

ifotinos YaBB Newbies Offline Posts: 36	Re: why isnt working online? Reply #3 - Feb 1^st, 2010, 4:28pm yes, everything is included in the data folder + i deleted everything aroung this line and the same happens

PhiLho

Re: why isnt working online?
Reply #4 - Feb 2^nd, 2010, 1:45am

Usual remark: avoid calling loadImage in draw(), load it in setup() and use it thereafter.
Strange: I also get an out of memory exception on the loadFont call.

Mmm, the verdana_100.vlw font is 3MB, not that much, but perhaps too much for an applet. Not sure about that, I have the standard setting of 60MB, which seems much higher, but Java itself eats lot of memory.

The problem is that until recently, there was no way to specify in the Web page how many memory the applet might need. Since Java 1.6.0_10, we can do that, now: jdk6: Release Notes for the Next-Generation Java™ Plug-In Technology. Before that, each user has to change the memory setting in the Java control panel: How to Increase the Java Applet Memory Limit

I am not sure that's the real problem, but it is worth exploring these settings.
Another solution is to make a smaller font file (export less symbols).

ifotinos YaBB Newbies Offline Posts: 36	Re: why isnt working online? Reply #5 - Feb 2^nd, 2010, 2:07am i used only one of the two fonts (244 kb) and still it is not running. So, it is not a memory problem or a font problem, at least i think it isnt.

koogy God Member Offline Posts: 788	Re: why isnt working online? Reply #6 - Feb 2^nd, 2010, 4:38am what does the java console say? have you tried it using appletviewer? it might be easier to see error messages that way.

alvaro Junior Member Offline Posts: 85 Berlin	Re: why isnt working online? Reply #7 - Feb 2^nd, 2010, 5:47am you have a method called show(). This overrides the show method from PApplet and you should not. Just call your method something else, like showFirst() for example. Then like PhiLo says, the font is too big, or there are too many characters. And put the stuff you just call once in setup(), not in draw(). cool sketch btw

ifotinos YaBB Newbies Offline Posts: 36	Re: why isnt working online? Reply #8 - Feb 2^nd, 2010, 6:20am alvaro show() mehtod was the problem! thank u all very much / but really, what do u mean by saying PApplet? and this is what i did: http://www.openprocessing.org/visuals/?visualID=7318

alvaro Junior Member Offline Posts: 85 Berlin	Re: why isnt working online? Reply #9 - Feb 2^nd, 2010, 6:37am long story... the reference says "PApplet is the parent Processing class that allows us to have access to all the Processing goodies."

PhiLho YaBB Moderator Offline Posts: 4190 Near Paris (France)	Re: why isnt working online? Reply #10 - Feb 2^nd, 2010, 7:30am Wow, good catch! I wouldn't have thought of this one. I must remember that problem...

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