Varia library working group XPPL. https://gitea.xpub.nl/XPUB/XPPL
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<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<script src="{{ url_for("static", filename="js/d3.min.js") }}"></script>
<script src="{{ url_for("static", filename="js/jquery-3.3.1.min.js") }}"></script>
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<style>
body{
width:100%;
height:100%;
padding: 0;
margin:0;
}
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rect{
width: 40px;
height: 40px;
stroke: black;
fill: none;
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}
svg{
width:100%;
height:100%;
padding: 0;
margin:0;
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}
.bg{
fill: blue;
width: 100%;
height:100%;
}
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.no_cover{
fill: yellow;
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}
</style>
</head>
<body>
<script>
console.log("hello");
// d3.json("/api/books").then(function(data){
// console.log("loaded");
// console.log(data)
// var g = d3.select('body')
// .append('div')
// .append('div');
// g.selectAll("div.item")
// .data(data.books)
// .enter()
// .append("div")
// .attr("class", "item")
// .text(function(d){return d.title})
// .style("position", "absolute")
// .style("top", function (d) { return d.scapeY})
// .style("left", function (d) { return d.scapeX})
//
// }) //.err(function(err) {console.log("error!", err)})
d3.json("/api/books").then(function(data){
console.log("loaded");
console.log(data)
var svg = d3.select('body')
.append('svg');
var bounds = svg.node().getBoundingClientRect(),
width = bounds.width, height = bounds.height;
var bg = svg.append("rect")
.attr("class", "bg")
.attr("width", width)
.attr("height", height)
.style("pointer-events", "all")
.call(d3.zoom()
.scaleExtent([0.1, 6])
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.on("zoom", zoomed));
function zoomed(){
g.attr("transform", d3.event.transform);
}
var g = svg.append('g');
var join = g.selectAll("g.item")
.data(data.books, function (d) { return d.id });
// process new items (enter)
join.enter()
.append("g")
.attr("class", "item")
// .text(function(d){return d.title})
.style("position", "absolute")
.attr("transform", function (d) { return "translate("+d.scapeX+","+d.scapeY+")"})
.call(d3.drag()
.on("start", function(d) {
svg.selectAll("g.item").sort(function (a, b) { // select the parent and sort the path's
if (a.id != d.id) return -1; // a is not the hovered element, send "a" to the back
else return 1; // a is the hovered element, bring "a" to the front
});
})
.on("drag", function(d,i) {
d.scapeX += d3.event.dx
d.scapeY += d3.event.dy
updateDB(d.id, d.scapeX, d.scapeY);
d3.select(this).attr("transform", function(d,i){
return "translate(" + [ d.scapeX,d.scapeY ] + ")"
})})
);
var itemLink = g.selectAll("g.item")
.append("a")
.attr("xlink:href", function(d){return "/books/"+d.id});
/*itemLink.append("rect")
.attr("class", "no_cover")
.attr('x', 0)
.attr('y', 0)
.attr('height', 60)
.attr('width', 40);*/
itemLink.append("svg:image")
.attr("class", "no_cover")
.attr('x', 0)
.attr('y', 0)
.attr('height', 60)
.attr('width', 40)
.attr("xlink:href", function(d){if(d.cover!=null) return "/cover/"+d.cover});
itemLink.append("text")
.text(function(d){return d.title})
.attr("x", 0)
.attr("y", 80)
.style("font-size", "6px");
/* .style("font-size", "10px")
.attr("width", 80);*/
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// update existing elements
join.transition(1000).attr("transform", function (d) { return "translate("+d.scapeX+","+d.scapeY+")"});
join.exit().remove();
function updateDB(id, xPos, yPos){
var postForm = { //Fetch form data
'id' : id,
'x' : xPos, //Store name fields value,
'y' : yPos
};
$.ajax({ //Process the form using $.ajax()
type : 'POST', //Method type
url : '/scape', //Your form processing file URL
data : postForm, //Forms name
dataType : 'json'
});
}
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})
</script>
</body>
</html>