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Topic: Accessing the control points of a font? (Read 929 times) |
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Ricard
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Accessing the control points of a font?
« on: Jan 14th, 2005, 9:14pm » |
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Otra vez,
Is there a way to access the control points of a letter, so that we can maybe stretch them in order to deform the letter?
thanks
ricard
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liminal
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Re: Accessing the control points of a font?
« Reply #1 on: Jan 14th, 2005, 10:04pm » |
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I don't know how to do this with p5, but with straight Java version 1.4+, you can use the java.awt.font.GlyphVector class. It will return a java.awt.Shape object which will give you the control points.
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Ricard
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Re: Accessing the control points of a font?
« Reply #2 on: Jan 15th, 2005, 4:03pm » |
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Muchas gracias for the post, I'll try it as soon as I can.
The people on this forum are very helpful. When I know a bit more P5 I'm going to start posting replies to help.
Ricard
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Ricard
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Re: Accessing the control points of a font?
« Reply #3 on: Jan 31st, 2005, 5:55pm » |
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Hi again,
I've been looking into the java.awt.font.GlyphVector and java.awt.Shape classes, an I'm having a little bit of problems integrating them into P5.
When I try to use the createGlyphVector(FontRenderContext frc, String str) from the Font class, I don't know how to get a FontRenderContext.
Is there anyway to get a FontRenderContext from a BApplet class?
Thanks,
Ricard
here is the code, so you can understand better what I'm trying to do.
as a suggestion, would it be possible to have easier access to the fonts' glyphvectors??
thanks again
Code:
import java.awt.geom.*;
import java.awt.font.*;
import java.awt.*;
public class Fonting extends BApplet {
Font f;
void setup()
{
size(400,400);
f = new Font("times new roman",Font.PLAIN,33);
background(255);
}
void loop()
{
background(255);
image(g,0,0);
String str = String.valueOf("a");
// HERE IS MY PROBLEM
// -------------------
GlyphVector gv = f.createGlyphVector(new FontRenderContext(),str);
// -------------------
Shape shp = gv.getOutline();
PathIterator pathIt = shp.getPathIterator(null);
processPathIterator(pathIt);
}
void keypressed()
{
String str = String.valueOf("a");
GlyphVector gv = f.createGlyphVector(null,str);
Shape shp = gv.getOutline();
PathIterator pathIt = shp.getPathIterator(null);
processPathIterator(pathIt);
}
void processPathIterator(PathIterator iter) {
float[] vals = new float[6];
int type;
while (!iter.isDone()) {
type = iter.currentSegment(vals);
switch (type) {
case PathIterator.SEG_CUBICTO:
// do nothing yet
break;
case PathIterator.SEG_LINETO:
// do nothing yet
break;
case PathIterator.SEG_MOVETO:
break;
case PathIterator.SEG_QUADTO:
// do nothing yet
break;
case PathIterator.SEG_CLOSE:
break;
default:
break;
}
iter.next();
}
}
}
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fjen
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Re: Accessing the control points of a font?
« Reply #4 on: Jan 31st, 2005, 7:55pm » |
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very interesting project! i'm currently putting together a list with project's that explore the creation of letterforms via code ... anyway, try this:
Code:
import java.awt.geom.*;
import java.awt.font.*;
import java.awt.*;
public class Fonting extends BApplet {
Font f;
FontRenderContext fontRenderContext;
void setup()
{
size(400,400);
framerate(1);
f = new Font("times roman",Font.PLAIN,33);
println(f.toString());
AffineTransform affineTransform = f.getTransform();
fontRenderContext = new FontRenderContext(affineTransform, false, false);
System.out.println("Setup done.");
}
void loop()
{
background(255);
}
void keyReleased()
{
String str = String.valueOf("a");
//((Graphics2D)getGraphics()).getFontRenderContext()
GlyphVector gv = f.createGlyphVector(fontRenderContext,str);
Shape shp = gv.getOutline();
PathIterator pathIt = shp.getPathIterator(null);
processPathIterator(pathIt);
}
String arrayToString (float[] arr)
{
String s = "------------------";
for (int i=0; i<arr.length; i++) s += "\n\t"+arr[i];
return s;
}
void processPathIterator(PathIterator iter) {
float[] vals = new float[6];
int type;
while (!iter.isDone()) {
type = iter.currentSegment(vals);
switch (type) {
case PathIterator.SEG_CUBICTO:
System.out.println( arrayToString(vals) );
break;
case PathIterator.SEG_LINETO:
System.out.println( arrayToString(vals) );
break;
case PathIterator.SEG_MOVETO:
System.out.println( arrayToString(vals) );
break;
case PathIterator.SEG_QUADTO:
System.out.println( arrayToString(vals) );
break;
case PathIterator.SEG_CLOSE:
System.out.println( arrayToString(vals) );
break;
default:
System.out.println( arrayToString(vals) );
break;
}
iter.next();
}
}
}
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/F
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fjen
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Re: Accessing the control points of a font?
« Reply #5 on: Jan 31st, 2005, 8:02pm » |
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oh ... two things:
(1) not sure why it does, but keypressed() should not compile at all ...
change to: keyReleased()
---> correction: the reason why it compiles is that it's treated as a new function ... keypressed != keyPressed since java is case-sensitive ... so it's not overriding the internal one and won't work .. that's confusing i think.
(2) and try not to create objects _every_ loop (the garbage collection will be thankful).
rather create them once in setup and only use them in loop ...
/F
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| « Last Edit: Jan 31st, 2005, 8:07pm by fjen » |
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Ricard
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Re: Accessing the control points of a font?
« Reply #6 on: Jan 31st, 2005, 10:38pm » |
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wow!!!
thank you VERY much fjen. This must have been the best reply I have ever got in a Forum, very useful and clear. I even learned a little bit about how the garbage collector works.
thanks. when I finish this little experiment I will send you the link so you can add it to your list if you find it interesting enough.
thanks again,
ricard
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