Processing 1.0 - Processing Discourse - Intermittent textFont() / textSize() issue

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Intermittent textFont() / textSize() issue (Read 321 times)

J_D

Intermittent textFont() / textSize() issue
Feb 26^th, 2008, 2:21am

Forgive me if this is a lame question... I did search the forum but didn't see it mentioned in the archive.

I'm going through Ben Fry's "Visualizing Data" book (and really enjoying it by the way) and building up the sample code as I progress.

In many cases, the font for a program is loaded in setup() through the use of createFont() and textFont(). Later, once the draw() loop has started, textSize() is called to modify the size of labels at various times.

Most of the time, I get an exception telling me "Use textFont() before textSize()"... and I can certainly modify the code to call textFont() repeatedly, except that:

1) It doesn't occur EVERY time I run my program. Sometimes, I can hit CTRL+R repeatedly and it will run after 4-5 tries without modification. Weird.

2) The sample code doesn't call textFont() before each textSize call().

Am I missing something here? It seems that calling it once in setup() should take care of it (and that seems to be what the sample code from the book implies as well).

FWIW, I'm running Processing 0135 Beta under Windows Vista.

Thanks in advance,

Jeff

fry

Re: Intermittent textFont() / textSize() issue
Reply #1 - Feb 26^th, 2008, 8:11am

Yeah, somebody else ran across the same problem:
http://dev.processing.org/bugs/show_bug.cgi?id=726

The fix for now is to call textFont() inside draw() before using the text() command. I've seen quirks like this before but I'm not sure where this one is coming from (Vista? Sunspots?) Will look into it more for the next release.

J_D

Re: Intermittent textFont() / textSize() issue
Reply #2 - Feb 26^th, 2008, 6:57pm

fry wrote on Feb 26^th, 2008, 8:11am:

The fix for now is to call textFont() inside draw() before using the text() command. I've seen quirks like this before but I'm not sure where this one is coming from (Vista Sunspots) Will look into it more for the next release.

Thanks, Ben... that's easy enough.

BTW, I'm finding the book to be a great walkthrough/introduction to working with processing... I've done Java for years (and .NET more recently) and the simplicity of getting started with processing is REALLY refreshing.

fry YaBB Moderator Offline Posts: 2623 mass, usa	Re: Intermittent textFont() / textSize() issue Reply #3 - Feb 26^th, 2008, 8:23pm great! good to hear.

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