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Index › Programming Questions & Help › Programs › How to rotate one PFont letter around it's center
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How to rotate one PFont letter around it's center? (Read 1607 times)
DoctorEternal
How to rotate one PFont letter around it's center?
Aug 25th, 2007, 2:31am  
I'm trying to rotate a single font character (a dingbat) around it's actual center. The code below rotates it on the baseline (I think). How can I get it to rotate around the exact center of the character like an PImage would do?

import processing.opengl.*;

PFont f;
int r = 0;
void setup() {
 f = loadFont("Mato.vlw");
 size(500,500, OPENGL);
 textFont(f, 80);
 frameRate(30);
 smooth();
}

void draw() {
 background(200, 100, 200);
 fill(0);
 pushMatrix();  
 translate(100,100);
 rotate(r++);  
 text("W", 0,0);
 popMatrix();
}
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WWW TuringOpera  
lenny
Re: How to rotate one PFont letter around it's cen
Reply #1 - Aug 25th, 2007, 6:20am  
import processing.opengl.*;

PFont f;
float r = 0;  
void setup() {
 f = createFont("engel.ttf",80);
 size(500,500, OPENGL);
 textFont(f, 80);
 frameRate(30);
 smooth();
}

void draw() {
 background(200, 100, 200);
 fill(0);
 pushMatrix();  
 translate(100,100);
 rotate(r+=5);  
 text("W", -textWidth("W")/2.0,40);
 popMatrix();
}
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fry
Re: How to rotate one PFont letter around it's cen
Reply #2 - Aug 26th, 2007, 1:59am  
but put size() first! that code will load the ttf twice.
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lenny
Re: How to rotate one PFont letter around it's cen
Reply #3 - Aug 26th, 2007, 2:29am  
ah, ok, sorry ;)
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DoctorEternal
Re: How to rotate one PFont letter around it's cen
Reply #4 - Sep 14th, 2007, 3:21am  
Close, but it still doesnt take into account the font's blank areas, it doesnt QUITE rotate around the center. Close!
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fry
Re: How to rotate one PFont letter around it's cen
Reply #5 - Sep 14th, 2007, 12:37pm  
use textAlign(CENTER, CENTER) before calling rotate.
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