I'm trying to scale a PGraphics, and I have no idea how to do it.

I tried calling scale() before image() and also using the image() width and height arguments, but the resulting scaled image has way too much artifact to be remotely usable.

Here is the snippet:

Code:

PGraphics test = createGraphics(300, 300, JAVA2D);

void setup()
{
  size(300,300);
  noLoop();
  
  background(0);
  
  test.beginDraw();
  test.stroke(255);
  test.fill(255);
  test.point(0, 0);
  test.endDraw();
}

void draw()
{

}

void mouseDragged()
{
  background(0);
  test.beginDraw();
  test.stroke(255);
  test.fill(255);
  test.line(pmouseX, pmouseY, mouseX, mouseY);
  test.endDraw();
  image(test, 0, 0);
  redraw();
}

void keyPressed()
{
    background(0);
    test.background(0);
    image(test, 0, 0, 100, 100);
    redraw();
}
 

Well, you're right, increasing the strokeWeight helps. But, I'm curious to know how does Processing resize the image. In photoshop, if I recreate the same kind of graphics and resize it, I only get these artifacts from the nearest neighbors resample. What is processing using? Could I somehow use a different technique like bicubic smoother (which gave me the best result in photoshop) inside of processing?

And on another note, the line() method, from what I understand plots a line between two points. And the beginDraw allows for the PGraphics pixel[] array to be filled up. Then image() copies those pixels unto the display. So what if I wanted to resize my PGraphics so that it's pixel[] array and it's size are actually updated?

Finally, line(), seems like a vector graphics method to me (but I'm no expert at all), a my right to believe that? So I'm wondering, what if I would want to make my PGraphics hold vector graphics instead, from that line(), so that resizing it wouldn't give me any loss of quality which is what vector are good for?