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utils.js
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utils.js
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function getVectorNormal(vec) {
const normal = new THREE.Vector2(vec.x, vec.y);
normal.rotateAround(new THREE.Vector2(0, 0), Math.PI / 2);
normal.normalize();
normal.multiplyScalar(sequenceFlowWidth);
return normal;
}
function getAngleBetweenVectors(vec1, vec2) {
const a = new THREE.Vector2(vec1.x, vec1.y);
a.normalize();
const b = new THREE.Vector2(vec2.x, vec2.y);
b.normalize();
b.negate();
const angle = Math.atan2(b.y, b.x) - Math.atan2(a.y, a.x);
return angle;
}
function calculateWaypoints(waypoints) {
return waypoints.map((waypoint, idx) => {
const previousWaypoint = waypoints[idx - 1];
const nextWaypoint = waypoints[idx + 1];
if(!previousWaypoint) {
// first waypoint, take the normal
const movingVector = nextWaypoint.clone().sub(waypoint);
const normal = getVectorNormal(movingVector);
const shortNormal = normal.clone().multiplyScalar(flowOutlineWidthFactor);
return [
waypoint.clone().add(normal),
waypoint.clone().sub(normal),
waypoint.clone().add(shortNormal),
waypoint.clone().sub(shortNormal)
];
} else {
if(nextWaypoint) {
// middle point, take the half angle
const vec1 = waypoint.clone().sub(previousWaypoint);
const vec2 = nextWaypoint.clone().sub(waypoint);
const angle = getAngleBetweenVectors(vec1, vec2);
const halfAngle = angle / 2;
const normal = vec2.clone().rotateAround(new THREE.Vector2(0, 0), -halfAngle);
normal.normalize();
normal.multiplyScalar(sequenceFlowWidth * 1.5);
const shortNormal = normal.clone().multiplyScalar(flowOutlineWidthFactor);
if(halfAngle < 0) {
return [
waypoint.clone().add(normal),
waypoint.clone().sub(normal),
waypoint.clone().add(shortNormal),
waypoint.clone().sub(shortNormal)
];
} else {
return [
waypoint.clone().sub(normal),
waypoint.clone().add(normal),
waypoint.clone().sub(shortNormal),
waypoint.clone().add(shortNormal)
];
}
} else {
// last waypoint, take the normal
const movingVector = waypoint.clone().sub(previousWaypoint);
const normal = getVectorNormal(movingVector);
const shortNormal = normal.clone().multiplyScalar(flowOutlineWidthFactor);
return [
waypoint.clone().add(normal),
waypoint.clone().sub(normal),
waypoint.clone().add(shortNormal),
waypoint.clone().sub(shortNormal)
];
}
}
});
}
openSpaces = [];
function addSpace(p1,p2,p3) {
openSpaces.push({p1,p2,p3});
}
function updateModel(viewer) {
// remove old model entity
const oldElements = document.querySelectorAll('[model-entity="true"]');
console.log('oldelements', oldElements);
for(var i = 0; i < oldElements.length; i++) {
oldElements[i].parentNode.removeChild(oldElements[i]);
}
const oldElements2 = document.querySelectorAll('[model-entity2="true"]');
for(var i = 0; i < oldElements2.length; i++) {
oldElements2[i].parentNode.removeChild(oldElements2[i]);
}
availableDoors.length = 0;
// add new elements
let startPosition;
const data = [];
const elementRegistry = viewer.get('elementRegistry');
const scene = window.BATscene;
elementRegistry.forEach(element => {
const bo = element.businessObject;
if(element.type === 'label') {
return;
}
if(bo.$instanceOf('bpmn:SequenceFlow')) {
handleSequenceFlow(scene, element);
}
if(bo.$instanceOf('bpmn:Task')) {
handleTask(scene, element);
}
if(bo.$instanceOf('bpmn:Event')) {
handleGateway(scene, element);
if(bo.$instanceOf('bpmn:StartEvent')) {
startPosition = element;
}
}
if(bo.$instanceOf('bpmn:Gateway')) {
handleGateway(scene, element);
}
});
window.startPosition = startPosition;
}
function handleModel(viewer) {
const scene = document.createElement('a-scene');
// <a-sky color="#ECECEC"></a-sky>
const sky = document.createElement('a-sky');
sky.setAttribute('color', '#ECECEC');
scene.appendChild(sky);
let startPosition;
const data = [];
const elementRegistry = viewer.get('elementRegistry');
elementRegistry.forEach(element => {
const bo = element.businessObject;
if(element.type === 'label') {
return;
}
if(bo.$instanceOf('bpmn:SequenceFlow')) {
handleSequenceFlow(scene, element);
}
if(bo.$instanceOf('bpmn:Task')) {
handleTask(scene, element);
}
if(bo.$instanceOf('bpmn:Event')) {
handleGateway(scene, element);
if(bo.$instanceOf('bpmn:StartEvent')) {
startPosition = element;
}
}
if(bo.$instanceOf('bpmn:Gateway')) {
handleGateway(scene, element);
}
});
// <a-entity camera="userHeight: 1.7" look-controls></a-entity>
const posOffset = startPosition.width / 2 * globalScaleFactor;
const camera = document.createElement('a-entity');
camera.setAttribute('camera', 'userHeight: 1.7');
camera.setAttribute('look-controls', true);
camera.setAttribute('wasd-controls', 'acceleration: 250');
camera.setAttribute('position', (startPosition.y * globalScaleFactor + posOffset) + ' 0 ' + (-startPosition.x * globalScaleFactor - posOffset));
camera.setAttribute('collision', true);
scene.appendChild(camera);
// setup lights
const ambientLight = document.createElement('a-entity');
ambientLight.setAttribute('light', 'type: ambient; color: #BBB;');
scene.appendChild(ambientLight);
const movingLight = document.createElement('a-entity');
movingLight.setAttribute('light', 'type: point; color: #FFF; intensity: 0.2;');
camera.appendChild(movingLight);
const directionalLight = document.createElement('a-entity');
directionalLight.setAttribute('light', 'type: directional; color: #FFF; intensity: 0.6');
directionalLight.setAttribute('position', '0 1 0');
scene.appendChild(directionalLight);
document.querySelector('#vrContent').appendChild(scene);
window.startPosition = startPosition;
window.BATscene = scene;
window.BATcamera = camera;
}
function findOpenExits(element) {
let n=s=w=e = false;
element.incoming.forEach(incoming => {
const lastWp = incoming.waypoints[incoming.waypoints.length -1];
if(lastWp.x === element.x) {
w = incoming.source.businessObject.name;
}
if(lastWp.x === element.x + element.width) {
e = incoming.source.businessObject.name;
}
if(lastWp.y === element.y) {
n = incoming.source.businessObject.name;
}
if(lastWp.y === element.y + element.height) {
s = incoming.source.businessObject.name;
}
});
element.outgoing.forEach(outgoing => {
const lastWp = outgoing.waypoints[0];
if(lastWp.x === element.x) {
w = outgoing.target.businessObject.name;
}
if(lastWp.x === element.x + element.width) {
e = outgoing.target.businessObject.name;
}
if(lastWp.y === element.y) {
n = outgoing.target.businessObject.name;
}
if(lastWp.y === element.y + element.height) {
s = outgoing.target.businessObject.name;
}
});
return {n,s,w,e};
}