Processing 1.0 - Processing Discourse

We closed this forum 18 June 2010. It has served us well since 2005 as the ALPHA forum did before it from 2002 to 2005. New discussions are ongoing at the new URL http://forum.processing.org. You'll need to sign up and get a new user account. We're sorry about that inconvenience, but we think it's better in the long run. The content on this forum will remain online.

‹ Previous Topic | Next Topic ›

Pages: 1

PDF for Dummies (Read 3755 times)

st33d

PDF for Dummies
Apr 25^th, 2006, 9:40pm

I tried running some suggestion of what was referred to here but I can't figure out how to get it to work.

The following code doesn't work, it doesn't generate an applet window but it generates a blank pdf that Acrobat refuses to deal with because it's being worked on. There's nothing for the mousePress event to be focused on:
Code:


import processing.pdf.*;
void setup() {
  size(400, 400, pdf, "filename.pdf");
}
void draw() {
  line(0,0,height,width);
}
void mousePressed() {
  exit();
}

I've looked in the revision notes and I can't find any illumination. It's clear that it's quite obvious to everyone else what they're supposed to do but I can't even get a "hello world" applet for pdf running.

Could someone show me the bare minimum code to get this thing to work please?

fry YaBB Moderator Offline Posts: 2623 mass, usa	Re: PDF for Dummies Reply #1 - Apr 25^th, 2006, 10:13pm as of more recent releases, pdf sketches don't open a window, so mousePressed isn't gonna work. try this: Code: import processing.pdf.*; void setup() { size(400, 400, PDF, "filename.pdf"); } void draw() { line(0,0,height,width); exit(); }

mark hill

Re: PDF for Dummies
Reply #2 - Apr 25^th, 2006, 10:55pm

This works really well

, but my Illustrator cs2 beach balls me like crazy on OSX, but I put that down to RAM and Adobe.

Is it possible to exclude elements from the draw cycle?
I'm recording across several frames and have some GUI stuff I'd prefer not to save as part of the PDF. I can work round easily enough, but perhaps there's already a way?

fry YaBB Moderator Offline Posts: 2623 mass, usa	Re: PDF for Dummies Reply #3 - Apr 25^th, 2006, 11:17pm yep, that's what beginRecord/endRecord are for.

mark hill

Re: PDF for Dummies
Reply #4 - Apr 26^th, 2006, 9:20am

But what if I'm building a PDF that takes a shot every (n)th frame, but part of the interaction requires a GUI element to be on the screen. How would I omit the GUI stuff from the recording without being forced to start a new file each frame?

Or, how could I keep drawing to the screen, but only record every (n)th frame, as it would appear that once recording has started all drawing is saved, and not just the bits you want.

Sorry if I'm missing something very obvious, it wouldn't be the first time!

JohnG Ex Member	Re: PDF for Dummies Reply #5 - Apr 26^th, 2006, 10:52am That's what beginRecord/endRecord are for. You create your sketch with size(400,400); withotu the PDF stuff, then when you want to record a certain frame you do: Code: beginRecord(PDF, "frame-####.pdf"); ... awesome drawing stuff ... endRecord();

st33d God Member Offline Posts: 666	Re: PDF for Dummies Reply #6 - Apr 26^th, 2006, 11:38am Thanks guys.

mark hill

Re: PDF for Dummies
Reply #7 - Apr 26^th, 2006, 11:54am

Quote:

That's what beginRecord/endRecord are for.

Thanks, John. Yes, that's what I've been doing, however...

As a sequence of interactions over a number of frames, rather than them all being part of the same PDF, they'd be ####.pdf sequential files. (I seem to remember an experiment yesterday, where beginRecord and endRecord (n)frames later produces a single file, not a #### sequence).

Anyhow it's not really an issue to worry about, it's just that I'm not at my machine so can't test this out, so sorry for any misunderstanding. Just curious!

fry

Re: PDF for Dummies
Reply #8 - Apr 26^th, 2006, 1:35pm

to make it all part of the same file, you create the pdf in setup, and then pass that to beginRecord inside draw. this is the second example on beginRecord in revisions.txt.

Code:

PGraphics pdf;

void setup() {
  // setup stuff..
  pdf = createGraphics(PDF, "blah.pdf");
}

void draw() {
  // draw gui things not in the pdf

  beginRecord(pdf);
  // draw pdf things
  endRecord();
}

mark hill Senior Member Offline Posts: 316	Re: PDF for Dummies Reply #9 - Apr 26^th, 2006, 3:53pm Thanks for the explanation. The penny has well and truly dropped.

st33d God Member Offline Posts: 666	Re: PDF for Dummies Reply #10 - Jun 12^th, 2006, 1:17am I'm guessing the answer is going to be no (because I've tried already), but is there a way I can get my 3D line drawing to output a flat PDF? PDF doesn't work with P3D commands as I've gathered, but is there any scope for this? Or is it some crazy voodoo I should get off my bum and learn?

watz Full Member Offline Posts: 202	Re: PDF for Dummies Reply #11 - Jun 12^th, 2006, 12:29pm PDF can do 3D if you use the beginRaw() / endRaw() methods instead of beginRecord() / endRecord(). It will then support lines and polygons, but not points. Also, it won't do Z-buffering, so intersecting objects will be rendered in the order they are drawn. See this example: PDF for complex 3D output
	marius watz // unlekker // code & form // Generator.x

st33d

Re: PDF for Dummies
Reply #12 - Jun 12^th, 2006, 6:29pm

Code:


void keyPressed(){
  PGraphicsPDF pdf=(PGraphicsPDF)beginRaw(PDF, "myPdf.pdf");
  //background() command is ignored
  pdf.fill(255);
  pdf.noStroke();
  pdf.rect(0,0, width,height);

  /*
  Insert Glory
  */

  endRaw();
}

Got it, thank you very much.

Pages: 1

‹ Previous Topic | Next Topic ›