phyks/timeline.js
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Better visualization + over effect

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This commit is contained in:
Phyks 2014-03-28 18:04:14 +01:00
parent debf513daa
commit 6107f592a9
2 changed files with 67 additions and 34 deletions
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2
examples/index.html
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@ -7,7 +7,7 @@
}
</style>
</head>
<body onload="SVG.init('holder', '100%', '100%', 'both'); SVG.addPoints([[50, 50],[100,100],[150,25],[175, -200]]); SVG.draw(true);">
<body onload="SVG.init('holder', '100%', '100%', 'both', true); SVG.addPoints([[50, 50],[100,100],[150,25],[175, -200]]); SVG.draw();">
<div id="holder"></div>
<script type="text/javascript" src="../timeline.js"></script>
</body>

99
timeline.js
View File

@ -11,13 +11,14 @@ SVG.holder = false;
SVG.g = false;
SVG.axis = false;
SVG.raw_points = [];
SVG.rounded = false;
/* Initialization :
* id = id of the parent block
* height / width = size of the svg
* grid = small / big / both
*/
SVG.init = function (id, height, width, grid)
SVG.init = function (id, height, width, grid, rounded)
{
var holder = document.getElementById(id);
@ -106,6 +107,8 @@ SVG.init = function (id, height, width, grid)
SVG.axis.setAttribute('stroke-width', 3);
SVG.axis.setAttribute('marker-end', 'url("#markerArrow")');
SVG.g.appendChild(SVG.axis);
SVG.rounded = rounded;
}
SVG.newCoordinates = function(value, min, max, minValue, maxValue) {
@ -150,6 +153,7 @@ SVG.scale = function(data) {
}
SVG.addPoints = function (data) {
// TODO : Sort x croissants
for(point in data) {
SVG.raw_points.push([data[point][0], data[point][1]]);
}
@ -209,12 +213,12 @@ SVG.getControlPoints = function (data) {
return {p1:p1, p2:p2};
}
SVG.draw = function(rounded) {
SVG.draw = function() {
var scale = SVG.scale(SVG.raw_points);
var x = new Array();
var y = new Array();
var circle = false;
var line = false;
var element = false;
var rect = false;
var point = false;
var px = false;
var py = false;
@ -224,22 +228,38 @@ SVG.draw = function(rounded) {
for(point in SVG.raw_points) {
x.push(SVG.newCoordinates(SVG.raw_points[point][0], scale.minX, scale.maxX, SVG.marginLeft, SVG.holder.parentElement.offsetWidth - SVG.marginRight));
y.push(SVG.newCoordinates(SVG.raw_points[point][1], scale.minY, scale.maxY, SVG.marginBottom, SVG.holder.parentElement.offsetHeight - SVG.marginTop));
circle = document.createElementNS(SVG.ns, 'circle');
circle.setAttribute('class', 'point');
circle.setAttribute('cx', x[point]);
circle.setAttribute('cy', y[point]);
circle.setAttribute('r', 4);
circle.setAttribute('fill', '#333');
circle.setAttribute('stroke', '#3f72bf');
circle.setAttribute('stroke-width', 2);
SVG.g.appendChild(circle);
circle.addEventListener('mouseover', function() { this.setAttribute('r', '6'); })
circle.addEventListener('mouseout', function() { this.setAttribute('r', '4'); })
}
if(rounded === true) {
for(point = 0; point < SVG.raw_points.length; point++) {
rect = document.createElementNS(SVG.ns, 'rect');
rect.setAttribute('class', 'over');
rect.setAttribute('id', 'over_'+point);
if(point == 0) {
rect.setAttribute('x', 0);
}
else {
rect.setAttribute('x', (x[point] + x[point - 1]) / 2);
}
rect.setAttribute('y', 0);
rect.setAttribute('fill', 'white');
rect.setAttribute('opacity', '0');
if(point == SVG.raw_points.length - 1) {
rect.setAttribute('width', (x[point] - x[point - 1])/2 + SVG.marginLeft);
}
else if(point == 0) {
rect.setAttribute('width', (x[1] - x[0])/2 + SVG.marginLeft);
}
else {
rect.setAttribute('width', (x[point + 1] - x[point - 1])/2);
}
rect.setAttribute('height', '100%');
SVG.g.appendChild(rect);
rect.addEventListener('mouseover', function() { SVG.holder.getElementById(this.getAttribute('id').replace('over', 'point')).setAttribute('r', '6'); })
rect.addEventListener('mouseout', function() { SVG.holder.getElementById(this.getAttribute('id').replace('over', 'point')).setAttribute('r', '4'); })
}
if(SVG.rounded === true) {
px = SVG.getControlPoints(x);
py = SVG.getControlPoints(y);
for(point = 0; point < SVG.raw_points.length - 1; point++) {
@ -251,21 +271,34 @@ SVG.draw = function(rounded) {
path += 'L '+x[point]+' '+y[point]+' ';
}
}
line = document.createElementNS(SVG.ns, 'path');
line.setAttribute('class', 'graph');
line.setAttribute('fill', '#3f72bf');
line.setAttribute('opacity', '0.25');
line.setAttribute('stroke', 'none');
line.setAttribute('d', 'M '+SVG.marginLeft+' '+SVG.marginBottom+' L '+x[0]+' '+y[0]+' '+ path + ' M '+SVG.marginLeft+' '+SVG.marginBottom+' Z');
SVG.g.insertBefore(line, SVG.g.querySelectorAll('.point')[0]);
element = document.createElementNS(SVG.ns, 'path');
element.setAttribute('class', 'graph');
element.setAttribute('fill', '#3f72bf');
element.setAttribute('opacity', '0.25');
element.setAttribute('stroke', 'none');
element.setAttribute('d', 'M '+SVG.marginLeft+' '+SVG.marginBottom+' L '+x[0]+' '+y[0]+' '+ path + ' M '+SVG.marginLeft+' '+SVG.marginBottom+' Z');
SVG.g.insertBefore(element, SVG.g.querySelectorAll('.over')[0]);
line = document.createElementNS(SVG.ns, 'path');
line.setAttribute('class', 'line');
line.setAttribute('stroke', '#3f72bf');
line.setAttribute('stroke-width', 2);
line.setAttribute('fill', 'none');
line.setAttribute('d', 'M '+x[0]+' '+y[0]+' '+path);
SVG.g.appendChild(line);
element = document.createElementNS(SVG.ns, 'path');
element.setAttribute('class', 'line');
element.setAttribute('stroke', '#3f72bf');
element.setAttribute('stroke-width', 2);
element.setAttribute('fill', 'none');
element.setAttribute('d', 'M '+x[0]+' '+y[0]+' '+path);
SVG.g.appendChild(element);
for(point in SVG.raw_points) {
element = document.createElementNS(SVG.ns, 'circle');
element.setAttribute('class', 'point');
element.setAttribute('id', 'point_'+point);
element.setAttribute('cx', x[point]);
element.setAttribute('cy', y[point]);
element.setAttribute('r', 4);
element.setAttribute('fill', '#333');
element.setAttribute('stroke', '#3f72bf');
element.setAttribute('stroke-width', 2);
SVG.g.appendChild(element);
}
}
var old = window.onresize || function() {};
@ -274,7 +307,7 @@ window.onresize = function() {
if(SVG.g !== false) {
SVG.g.setAttribute('transform', 'translate(0, ' + SVG.holder.parentElement.offsetHeight + ') scale(1, -1)');
SVG.axis.setAttribute('x2', holder.offsetWidth - 13 - SVG.marginRight);
[].forEach.call(SVG.holder.querySelectorAll('.point, .line, .graph'), function(el) {
[].forEach.call(SVG.holder.querySelectorAll('.over, .point, .line, .graph'), function(el) {
el.parentElement.removeChild(el);
});
SVG.draw();