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Create multiple objects attached to trackables
import processing.ar.*;
ARTracker tracker;
ArrayList<ARAnchor> trackAnchors = new ArrayList<ARAnchor>();
void setup() {
fullScreen(AR);
tracker = new ARTracker(this);
tracker.start();
noStroke();
}
void draw() {
lights();
drawAnchors();
drawTrackables();
}
void mousePressed() {
ARTrackable hit = tracker.get(mouseX, mouseY);
if (hit != null) trackAnchors.add(new ARAnchor(hit));
}
void drawAnchors() {
for (ARAnchor anchor : trackAnchors) {
if (anchor.isTracking()) drawSphere(anchor, 0.05);
if (anchor.isStopped()) anchor.dispose();
}
tracker.clearAnchors(trackAnchors);
}
void drawTrackables() {
for (int i = 0; i < tracker.count(); i++) {
ARTrackable t = tracker.get(i);
pushMatrix();
t.transform();
float lx = t.lengthX();
float lz = t.lengthZ();
if (mousePressed && t.isSelected(mouseX, mouseY)) {
fill(255, 0, 0, 100);
} else {
fill(255, 100);
}
drawPlane(lx, lz);
popMatrix();
}
}
void drawSphere(ARAnchor anchor, float r) {
anchor.attach();
fill(#CF79F5);
sphere(r);
anchor.detach();
}
void drawPlane(float lx, float lz) {
beginShape(QUADS);
vertex(-lx/2, 0, -lz/2);
vertex(-lx/2, 0, +lz/2);
vertex(+lx/2, 0, +lz/2);
vertex(+lx/2, 0, -lz/2);
endShape();
}
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