controlp5/examples/extra/ControlP5groupCanvas/ControlP5groupCanvas.pde

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/**
* ControlP5 Canvas
*
* by andreas schlegel, 2011
* www.sojamo.de/libraries/controlp5
*
*/
import controlP5.*;
ControlP5 cp5;
void setup() {
size(400,600);
smooth();
cp5 = new ControlP5(this);
cp5.addGroup("myGroup")
.setLabel("Testing Canvas")
.setPosition(100,200)
.setWidth(200)
.addCanvas(new TestCanvas())
;
}
void draw() {
background(0);
}
class TestCanvas extends Canvas {
float n;
float a;
public void setup(PGraphics pg) {
println("starting a test canvas.");
n = 1;
}
public void draw(PGraphics pg) {
n += 0.01;
pg.ellipseMode(CENTER);
pg.fill(lerpColor(color(0,100,200),color(0,200,100),map(sin(n),-1,1,0,1)));
pg.rect(0,0,200,200);
pg.fill(255,150);
a+=0.01;
ellipse(100,100,abs(sin(a)*150),abs(sin(a)*150));
ellipse(40,40,abs(sin(a+0.5)*50),abs(sin(a+0.5)*50));
ellipse(60,140,abs(cos(a)*80),abs(cos(a)*80));
}
}