EJ Fox & Ian Johnson
streaming data, code, acid, design
// Run this once: set the collection to the original force layout
// comment out when done
// initialObject = {
// let obj = {};
// initialGroup.forEach(d => {
// let id = nodeId(d[0]);
// let o = (obj[id] = {
// x: d[0].x,
// y: d[0].y,
// name: d[0].data.name
// });
// db.collection('mindmap')
// .doc(id)
// .set(o);
// });
// return obj;
// }
firebaseLookup
uuid = require('uuid@8.3.0/dist/umd/uuid.min.js')
ColorHash = require('color-hash@1.0.3/dist/color-hash.js')
colorHash = new ColorHash()
userId = uuid.v4()
height = width * .67
svg
firebaseSvg
dragFirebase = function(simulation) {
function dragstarted(d) {
if (!d3.event.active) simulation.alphaTarget(0.3).restart();
// d.fx = d.x;
// d.fy = d.y;
// this wont work because we lose our drag handler
// let id = nodeId(d.__proto__);
// console.log("d", id, d.fx, d.fy);
// db.collection("mindmap")
// .doc(id)
// .update({ fill: "orange" });
}
function dragged(d) {
d.fx = d3.event.x;
d.fy = d3.event.y;
// d.fx = d.tx;
// d.fy = d.ty;
// d.x = d.tx;
// d.y = d.ty;
// let id = nodeId(d.__proto__);
// console.log("d", id, d.fx, d.fy);
}
function dragended(d) {
// update firebase
// console.log("drag end", d);
let id = nodeId(d.__proto__);
console.log("d", id, d.fx, d.fy);
let fy = d.fy > height - 50 ? height - 50 : d.fy;
let fx = d.fx > width - 50 ? width - 50 : d.fx;
db.collection("mindmap")
.doc(id)
.update({ x: fx, y: fy, fill: "lightgray" });
d.editing = false;
// d.fx = null;
// d.fy = null;
}
return d3
.drag()
.filter(d => {
return !d3.event.click;
// return d.editing;
})
.on("start", dragstarted)
.on("drag", dragged)
.on("end", dragended);
}
dragSim = simulation => {
function dragstarted(d) {
if (!d3.event.active) simulation.alphaTarget(0.3).restart();
d.fx = d.x;
d.fy = d.y;
}
function dragged(d) {
d.fx = d3.event.x;
d.fy = d3.event.y;
}
function dragended(d) {
if (!d3.event.active) simulation.alphaTarget(0);
d.fx = null;
d.fy = null;
}
return d3
.drag()
.on("start", dragstarted)
.on("drag", dragged)
.on("end", dragended);
}
chart
root = d3.hierarchy(mindmapTree)
links = root.links()
customLinks = [
{ source: 'Control camera positions (3D)', target: '3D' },
{ source: 'Crowd participation', target: 'Fun' }
]
nodes = root.descendants().slice(1)
Purpose-built for displays of data
Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.
