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Re: I don't get it

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Jonas Thörnvall <jonas.thornvall@gmail.com> wrote: 

> I understand the code, not how the recursion effect it... 

Recursion is actually a quite simple, but as Ben said,

| Recursion and non-local variables don't mix well.

You are simultaneously claiming these facts:

  - My code is so simple anyone can understand it

  - My code is broken in a way I don't understand
  
At that point, before seeking help, you need to figure out which
of those statements is true.

> You see one cannot look into a blackbox, you can learn how it behave 
> and that is why i ask you people, what is going on? 

You're asking a lot from volunteers.  You say your code is simple, but
it doesn't appear that way from the outside.  I didn't dig into it 
because there seems to be nothing of interest, and it's not simple 
enough to understand at a glance.


> Because i am clueless about what the recursion do to it. I probably 
> could and should do an iterative solution, but i want to know what 
> is going on.

From my perspective as a mostly functional-programming coder, *any*
code that accesses or mutates data outside its local scope is suspect.
Recursive code that does that is downright evil.

I'm sure it's been recommended to you before, but it would really 
help here if you read this and took its lessons to heart:

    <http://www.catb.org/~esr/faqs/smart-questions.html>
	
And if you could create a minimal complete example, it would make
a huge difference.  Does the problem still occur if you remove the
line `ctm.font = "26px Arial";`?  What about other similar lines?
You can either continue removing lines until your example is trivial, 
or you can rebuild from scratch only those parts you suspect might 
be at fault.  If doing this exercise does not help you find the 
problem on your own, then it should give you something others
can analyze without digging through your cruft.

  -- Scott

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Thread

I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-08 03:32 -0700
  Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-08 03:37 -0700
    Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-08 04:26 -0700
      Re: I don't get it JJ <jj4public@gmail.com> - 2021-04-08 19:39 +0700
        Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-08 05:53 -0700
          Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-08 13:55 -0700
            Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-09 00:46 -0700
              Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-09 10:03 +0100
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-09 04:09 -0700
                Re: I don't get it "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-04-09 11:07 -0700
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-10 03:23 +0100
                Re: I don't get it "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-04-10 22:02 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-11 01:05 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-11 01:07 -0700
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-11 11:42 +0100
                Re: I don't get it John G Harris <niam@jghnorth.org.uk.invalid> - 2021-04-09 20:01 +0100
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-09 13:31 -0700
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-10 03:37 +0100
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-09 23:53 -0700
                Re: I don't get it John G Harris <niam@jghnorth.org.uk.invalid> - 2021-04-10 12:05 +0100
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-10 15:59 +0100
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-10 15:47 +0100
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-10 18:25 +0100
                Re: I don't get it Jon Ribbens <jon+usenet@unequivocal.eu> - 2021-04-10 17:29 +0000
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-10 19:08 +0100
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-11 11:41 +0100
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-11 14:33 +0100
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-12 02:39 -0700
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-12 11:21 +0100
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-12 10:19 -0700
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-12 21:20 +0100
                Re: I don't get it "sc...@sauyet.com" <scott@sauyet.com> - 2021-04-12 14:32 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-13 04:11 -0700
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-13 14:58 +0100
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-13 09:20 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-13 09:29 -0700
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-13 20:06 +0100
                Re: I don't get it "sc...@sauyet.com" <scott@sauyet.com> - 2021-04-13 15:09 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-14 01:15 -0700
                Re: I don't get it "sc...@sauyet.com" <scott@sauyet.com> - 2021-04-14 05:22 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-15 11:52 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-15 11:57 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-15 12:04 -0700
                Re: I don't get it Scott Sauyet <scott.sauyet@gmail.com> - 2021-04-15 19:29 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-20 14:12 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-20 14:47 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-20 23:35 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-21 01:08 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-21 01:24 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-21 01:29 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-13 09:32 -0700
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-13 21:59 +0100
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-14 01:32 +0100
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-14 09:08 +0100
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-14 10:06 +0100
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-14 10:59 +0100
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-14 14:05 +0100
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-14 16:32 +0100
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-14 23:53 +0100
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-15 13:56 +0100
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-12 11:20 +0100
        Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-08 15:21 +0100
          Re: I don't get it Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2021-04-09 16:50 +0200
  Re: I don't get it Man From a city with name Viljandi <he12457@hotmail.com> - 2021-04-08 10:44 -0700
  Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-10 00:01 -0700

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