Resize the Pgraphics!!!

Programming Questions

jainsapna

in Programming Questions • 2 years ago

I am creating a PGraphics and on the mouse click ,I wish to increase the size of the graphics .But when I am trying to do so I am getting an error :

processing.app.debug.RunnerException: ArrayIndexOutOfBoundsException: Coordinate out of bounds!
    at processing.app.Sketch.placeException(Sketch.java:1543)
    at processing.app.debug.Runner.findException(Runner.java:582)
    at processing.app.debug.Runner.reportException(Runner.java:558)
    at processing.app.debug.Runner.exception(Runner.java:498)
    at processing.app.debug.EventThread.exceptionEvent(EventThread.java:367)
    at processing.app.debug.EventThread.handleEvent(EventThread.java:255)
    at processing.app.debug.EventThread.run(EventThread.java:89)
Exception in thread "Animation Thread" java.lang.ArrayIndexOutOfBoundsException: Coordinate out of bounds!
    at sun.awt.image.IntegerInterleavedRaster.setDataElements(IntegerInterleavedRaster.java:404)
    at processing.core.PGraphicsJava2D$ImageCache.update(Unknown Source)
    at processing.core.PGraphicsJava2D.imageImpl(Unknown Source)
    at processing.core.PGraphics.image(Unknown Source)
    at processing.core.PApplet.image(Unknown Source)
    at sketch_jun09a.draw(sketch_jun09a.java:32)
    at processing.core.PApplet.handleDraw(Unknown Source)
    at processing.core.PApplet.run(Unknown Source)
    at java.lang.Thread.run(Thread.java:619)

and the code is

PGraphics pg;
void setup()
{
size(600,600);
pg = createGraphics(200,200,P2D);
}
void draw()
{
pg.beginDraw();
pg.background(0,255,0);
pg.endDraw();
image(pg,0,0);
}
void mousePressed()
{
pg.resize(300,300);
println(pg.width);
}

I will appreciate any help !!!
Thanks.

Replies(1)

tfguy44

Re: Resize the Pgraphics!!!

2 years ago

resize() works on a PImage, not a PGraphics!

If you want a resized image of it, simple draw it a different size:

=====

PGraphics pg;

int pgsize = 200;

color bgcolor = color(0,255,0);

void setup()

{

size(600,600);

pg = createGraphics(200,200,P2D);

}

void draw()

{

pg.beginDraw();

pg.background(bgcolor);

pg.fill(255);

pg.ellipse(20,30,40,50);

pg.endDraw();

image(pg,0,0, pgsize, pgsize);

}

void mousePressed()

{

pgsize = 300;

bgcolor = color(255,0,255);

}

=====

If you really want to change the size of your PGraphics object, just create a new one:

=====

PGraphics pg;

void setup()

{

size(600,600);

pg = createGraphics(200,200,P2D);

}

void draw()

{

pg.beginDraw();

pg.background(0,255,0);

pg.endDraw();

image(pg,0,0);

}

void mousePressed()

{

if(pg.width != 300){

pg = createGraphics(300,300,P2D);

}

println(pg.width);

}

=====

(Additional drawing changes in the first one to illustrate the change.)

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