Problem with HTML applet and libraries. ("public" problem with controlP5)

matrej

Problem with HTML applet and libraries. ("public" problem with controlP5)

in Integration and Hardware • 1 year ago

Hi guys, I am a beginner in programming, but I use processing for my art projects in school.

I have one big problem. We have to make NETART, so I have to take my work to browsers and internet... But there is the problem... Anytime I try to export applet with library(such as PDF or controlP5). I get only white rect with size diameters...

I read somewhere, I have to make variables "public".But when I tried that, it doesn´t do anything, so I had to make it wrong somehow... Could you pls help me?

I use controlP5 library for changing size and opacity of triangles.

There is code for changing color named:"barva"

here is link for the applet: http://kliky.cz/blaha/applet/

Replies(2)

PhiLho

Re: Problem with HTML applet and libraries. ("public" problem with controlP5)

1 year ago

Seen in the Java console:

Exception in thread "Animation Thread" java.lang.NullPointerException
    at controlP5.ControlWindow.<init>(Unknown Source)
    at controlP5.ControlP5.init(Unknown Source)
    at controlP5.ControlP5.<init>(Unknown Source)
    at animaceMENU.setup(animaceMENU.java:39)
    at processing.core.PApplet.handleDraw(Unknown Source)
    at processing.core.PApplet.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

Looking at http://kliky.cz/blaha/applet/animaceMENU.java I see the line 39 is the one doing the new ControP5(this).
I don't see public variables in your code, but then again I haven't seen the corresponding warning. What version of controlP5 are you using?

matrej

Re: Re: Problem with HTML applet and libraries. ("public" problem with controlP5)

1 year ago

I use the latest version od controlP5.( version 0.7.2 release ). I don´t have there public variables. I don´t know which variables should I make public and where. In PDE or JAVA.

I am really beginner in programming, so be patient please :D

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