code:dome_projection_v01
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>Maske – Farbwechsel + Volle Buttonfläche + Korrekte Rotation</title>
<script src="https://cdn.jsdelivr.net/npm/p5@1.6.0/lib/p5.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/dat-gui/0.7.7/dat.gui.min.js"></script>
<style>
body { margin: 0; overflow: hidden; background: black; }
canvas { display: block; position: absolute; z-index: -1; }
#gui-container { position: absolute; left: 50px; bottom: 50px; z-index: 10; pointer-events: auto; }
#help-container {
position: absolute; left: 50px; top: 50px;
background: rgba(0,0,0,0.7); color: white; padding: 10px 20px;
border: 1px solid red; border-radius: 10px; font-family: sans-serif; font-size: 14px;
z-index: 20; display: none;
}
.dg.main { background-color: #222 !important; color: red !important; }
.dg .close-button { display: none !important; }
.dg .slider-fg { background: red !important; }
.dg .c .slider { background: #444 !important; }
.dg .cr.number { border-left: 3px solid red !important; }
.dg input[type="text"] { color: red !important; }
</style>
</head>
<body>
<div id="gui-container"></div>
<div id="help-container">
<strong>Shortcuts:</strong><br>
[h] Show/Hide Handles and GUI<br>
[r] Reset Workspace<br>
[a] Fill Circle Red<br>
[b] Fill Circle Green<br>
[c] Fill Circle Blue<br>
[d] Fill Circle Yellow<br>
[0] Remove Circle Fill<br><br>
<em>Click outside the area → Fullscreen toggle</em><br>
<em>Click on Load A/B/C/D → Change color</em>
</div>
<script>
let corners = [], circleCenter, interfaceElements = [], draggingIndex = -1, draggingCircleCenter = false, draggingInterfaceIndex = -1;
let showHandles = false, circleFillColor = null;
const cornerRadius = 25, interfaceSize = { w: 240, h: 80 };
let params = { Diameter: 400 }, gui;
function setup() {
createCanvas(windowWidth, windowHeight);
resetCorners(); resetCircleCenter(); setupInterfaceElements();
gui = new dat.GUI({ autoPlace: false });
document.getElementById('gui-container').appendChild(gui.domElement);
gui.add(params, 'Diameter', 100, 1000).step(1).name('Circle Diameter');
document.getElementById('gui-container').style.display = 'none';
}
function draw() {
background(0);
fill(50); noStroke();
beginShape(); for (let pt of corners) vertex(pt.x, pt.y); endShape(CLOSE);
if (circleFillColor) fill(circleFillColor); else noFill();
stroke(255); strokeWeight(1);
ellipse(circleCenter.x, circleCenter.y, params.Diameter);
noStroke();
rectMode(CENTER); textAlign(CENTER, CENTER); textSize(16);
for (let el of interfaceElements) {
push();
translate(el.position.x, el.position.y);
rotate(radians(el.rotation));
fill(100); rect(0, 0, interfaceSize.w, interfaceSize.h);
fill(255); text(el.label, 0, 0);
if (showHandles) { fill(255, 0, 0); ellipse(0, 0, cornerRadius); }
pop();
}
if (showHandles) {
fill(255, 0, 0);
for (let pt of corners) ellipse(pt.x, pt.y, cornerRadius);
ellipse(circleCenter.x, circleCenter.y, cornerRadius);
}
}
function mousePressed() {
const guiBounds = document.getElementById('gui-container').getBoundingClientRect();
if (mouseX >= guiBounds.left && mouseX <= guiBounds.left + guiBounds.width &&
mouseY >= guiBounds.top && mouseY <= guiBounds.top + guiBounds.height) return;
for (let i = 0; i < interfaceElements.length; i++) {
let el = interfaceElements[i];
let local = screenToLocal(mouseX, mouseY, el);
if (local.x > -interfaceSize.w/2 && local.x < interfaceSize.w/2 &&
local.y > -interfaceSize.h/2 && local.y < interfaceSize.h/2) {
if (showHandles) {
draggingInterfaceIndex = i;
} else {
if (el.label.includes("A")) circleFillColor = color(255, 0, 0);
if (el.label.includes("B")) circleFillColor = color(0, 255, 0);
if (el.label.includes("C")) circleFillColor = color(0, 0, 255);
if (el.label.includes("D")) circleFillColor = color(255, 255, 0);
}
return;
}
}
if (showHandles) {
if (dist(mouseX, mouseY, circleCenter.x, circleCenter.y) < cornerRadius / 2) {
draggingCircleCenter = true; return;
}
for (let i = 0; i < corners.length; i++) {
if (dist(mouseX, mouseY, corners[i].x, corners[i].y) < cornerRadius / 2) {
draggingIndex = i; return;
}
}
}
if (!insideWorkArea(mouseX, mouseY)) fullscreen(!fullscreen());
}
function screenToLocal(mx, my, el) {
let dx = mx - el.position.x;
let dy = my - el.position.y;
let angle = radians(-el.rotation);
let localX = dx * cos(angle) - dy * sin(angle);
let localY = dx * sin(angle) + dy * cos(angle);
return {x: localX, y: localY};
}
function mouseDragged() {
if (draggingIndex !== -1) {
corners[draggingIndex].x = mouseX;
corners[draggingIndex].y = mouseY;
} else if (draggingCircleCenter) {
circleCenter.x = mouseX;
circleCenter.y = mouseY;
} else if (draggingInterfaceIndex !== -1) {
if (insideWorkArea(mouseX, mouseY)) {
interfaceElements[draggingInterfaceIndex].position.x = mouseX;
interfaceElements[draggingInterfaceIndex].position.y = mouseY;
}
}
}
function mouseReleased() {
draggingIndex = -1; draggingCircleCenter = false; draggingInterfaceIndex = -1;
}
function keyPressed() {
if (key === 'h' || key === 'H') {
showHandles = !showHandles;
document.getElementById('gui-container').style.display = showHandles ? 'block' : 'none';
document.getElementById('help-container').style.display = showHandles ? 'block' : 'none';
}
if (key === 'r' || key === 'R') {
resetCorners(); resetCircleCenter(); setupInterfaceElements();
params.Diameter = 400; gui.updateDisplay(); circleFillColor = null;
}
if (key === 'a' || key === 'A') circleFillColor = color(255, 0, 0);
if (key === 'b' || key === 'B') circleFillColor = color(0, 255, 0);
if (key === 'c' || key === 'C') circleFillColor = color(0, 0, 255);
if (key === 'd' || key === 'D') circleFillColor = color(255, 255, 0);
if (key === '0') circleFillColor = null;
}
function windowResized() { resizeCanvas(windowWidth, windowHeight); }
function resetCorners() {
const margin = 20;
const s = min(540, (min(windowWidth, windowHeight) - 2 * margin) / 2);
const centerX = windowWidth / 2;
const centerY = windowHeight / 2;
corners = [
createVector(centerX - s, centerY - s),
createVector(centerX + s, centerY - s),
createVector(centerX + s, centerY + s),
createVector(centerX - s, centerY + s)
];
}
function resetCircleCenter() { circleCenter = createVector(windowWidth/2, windowHeight/2); }
function setupInterfaceElements() {
const cx = windowWidth / 2, cy = windowHeight / 2;
interfaceElements = [
{ id: "topLeft", label: "Load A", rotation: 180, position: createVector(cx-200, cy-200) },
{ id: "topRight", label: "Load B", rotation: 270, position: createVector(cx+200, cy-200) },
{ id: "bottomRight", label: "Load C", rotation: 0, position: createVector(cx+200, cy+200) },
{ id: "bottomLeft", label: "Load D", rotation: 90, position: createVector(cx-200, cy+200) }
];
}
function insideWorkArea(x, y) { return collidePointPoly(x, y, corners); }
function collidePointPoly(px, py, vertices) {
let collision = false;
for (let current = 0; current < vertices.length; current++) {
let next = (current + 1) % vertices.length;
let vc = vertices[current];
let vn = vertices[next];
if (((vc.y > py && vn.y < py) || (vc.y < py && vn.y > py)) &&
(px < (vn.x - vc.x) * (py - vc.y) / (vn.y - vc.y) + vc.x)) {
collision = !collision;
}
}
return collision;
}
</script>
</body>
</html>
/var/www/vhosts/ct-lab.info/wiki.ct-lab.info/data/pages/code/dome_projection_v01.txt · Last modified: 2025/04/29 16:16 by Felix Hardmood Beck