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Phyks
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examples/index.html
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14
examples/index.html
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<html>
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<head>
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<title>Dynamic Vector Circle</title>
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<style type="text/css">
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body {
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background-color: #333;
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}
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</style>
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</head>
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<body onload="SVG.init('holder', '100%', '100%', 'both'); SVG.addPoints([[50, 50],[100,100],[150,25],[175, -200]]); SVG.draw();">
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<div id="holder"></div>
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<script type="text/javascript" src="../timeline.js"></script>
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</body>
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</html>
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207
timeline.js
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timeline.js
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var SVG = {};
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SVG.ns = "http://www.w3.org/2000/svg";
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SVG.xlinkns = "http://www.w3.org/1999/xlink";
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SVG.marginBottom = 10;
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SVG.marginTop = 10;
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SVG.marginLeft = 10;
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SVG.marginRight = 10;
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SVG.holder = false;
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SVG.g = false;
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SVG.axis = false;
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SVG.raw_points = [];
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/* Initialization :
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* id = id of the parent block
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* height / width = size of the svg
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* grid = small / big / both
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*/
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SVG.init = function (id, height, width, grid)
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{
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var holder = document.getElementById(id);
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var svg = document.createElementNS(SVG.ns, 'svg:svg');
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svg.setAttribute('width', width);
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svg.setAttribute('height', height);
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svg.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', SVG.xlinkns);
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holder.appendChild(svg);
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SVG.holder = holder.querySelector('svg');
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var defs = document.createElementNS(SVG.ns, 'defs');
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SVG.holder.appendChild(defs);
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if(grid === 'small' || grid === 'both') {
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var small_grid_pattern = document.createElementNS(SVG.ns, 'pattern');
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small_grid_pattern.setAttribute('id', 'smallGrid');
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small_grid_pattern.setAttribute('width', 8);
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small_grid_pattern.setAttribute('height', 8);
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small_grid_pattern.setAttribute('patternUnits', 'userSpaceOnUse');
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var small_grid_path = document.createElementNS(SVG.ns, 'path');
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small_grid_path.setAttribute('d', 'M 8 0 L 0 0 0 8');
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small_grid_path.setAttribute('fill', 'none');
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small_grid_path.setAttribute('stroke', 'gray');
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small_grid_path.setAttribute('stroke-width', '0.5');
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small_grid_pattern.appendChild(small_grid_path);
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defs.appendChild(small_grid_pattern);
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}
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if(grid === 'big' || grid === 'both') {
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var grid_pattern = document.createElementNS(SVG.ns, 'pattern');
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grid_pattern.setAttribute('id', 'grid');
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grid_pattern.setAttribute('width', 80);
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grid_pattern.setAttribute('height', 80);
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grid_pattern.setAttribute('patternUnits', 'userSpaceOnUse');
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if(grid === 'both') {
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var grid_rect = document.createElementNS(SVG.ns, 'rect');
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grid_rect.setAttribute('width', 80);
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grid_rect.setAttribute('height', 80);
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grid_rect.setAttribute('fill', 'url(#smallGrid)');
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grid_pattern.appendChild(grid_rect);
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}
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var grid_path = document.createElementNS(SVG.ns, 'path');
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grid_path.setAttribute('d', 'M 80 0 L 0 0 0 80');
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grid_path.setAttribute('fill', 'none');
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grid_path.setAttribute('stroke', 'gray');
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grid_path.setAttribute('stroke-width', '1');
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grid_pattern.appendChild(grid_path);
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defs.appendChild(grid_pattern);
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}
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if(grid !== "none") {
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var grid = document.createElementNS(SVG.ns, 'rect');
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grid.setAttribute('width', "100%");
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grid.setAttribute('height', "100%");
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grid.setAttribute('fill', 'url(#grid)');
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SVG.holder.appendChild(grid);
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}
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var marker = document.createElementNS(SVG.ns, 'marker');
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marker.setAttribute('id', 'markerArrow');
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marker.setAttribute('markerWidth', 13);
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marker.setAttribute('markerHeight', 13);
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marker.setAttribute('refX', 2);
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marker.setAttribute('refY', 6);
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marker.setAttribute('orient', 'auto');
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var marker_path = document.createElementNS(SVG.ns, 'path');
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marker_path.setAttribute('d', 'M2,2 L2,11 L10,6 L2,2');
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marker_path.setAttribute('fill', 'gray');
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marker.appendChild(marker_path);
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defs.appendChild(marker);
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SVG.g = document.createElementNS(SVG.ns, 'g');
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SVG.g.setAttribute('transform', 'translate(0, ' + holder.offsetHeight + ') scale(1, -1)');
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SVG.holder.appendChild(SVG.g);
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SVG.axis = document.createElementNS(SVG.ns, 'line');
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SVG.axis.setAttribute('x1', SVG.marginLeft);
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SVG.axis.setAttribute('x2', holder.offsetWidth - 13 - SVG.marginRight);
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SVG.axis.setAttribute('stroke', 'gray');
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SVG.axis.setAttribute('stroke-width', 3);
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SVG.axis.setAttribute('marker-end', 'url("#markerArrow")');
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SVG.g.appendChild(SVG.axis);
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}
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SVG.newCoordinates = function(value, min, max, minValue, maxValue) {
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var a = (maxValue - minValue) / (max - min);
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return a * value - a * min + minValue;
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}
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SVG.scale = function(data) {
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var minX = false, minY = 0;
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var maxX = false, maxY = false;
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var x = 0, y = 0;
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var circle = false, last_point = false, line = false;
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for(point in data) {
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x = data[point][0];
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y = data[point][1];
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if(x < minX || minX === false) {
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minX = x;
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}
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if(x > maxX || maxX === false) {
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maxX = x;
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}
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if(y < minY) {
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minY = y;
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}
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if(y > maxY || maxY === false) {
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maxY = y;
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}
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}
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/* Draw axis */
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SVG.axis.setAttribute('y1', SVG.newCoordinates(0, minY, maxY, SVG.marginBottom, SVG.holder.parentElement.offsetHeight - SVG.marginTop));
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SVG.axis.setAttribute('y2', SVG.newCoordinates(0, minY, maxY, SVG.marginBottom, SVG.holder.parentElement.offsetHeight - SVG.marginTop));
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var returned = new Array();
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returned['minX'] = minX;
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returned['minY'] = minY;
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returned['maxX'] = maxX;
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returned['maxY'] = maxY;
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return returned;
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}
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SVG.addPoints = function (data) {
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for(point in data) {
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SVG.raw_points.push([data[point][0], data[point][1]]);
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}
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}
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SVG.draw = function() {
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var points = [];
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var scale = SVG.scale(SVG.raw_points);
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/* Draw points */
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for(point in SVG.raw_points) {
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x = SVG.newCoordinates(SVG.raw_points[point][0], scale.minX, scale.maxX, SVG.marginLeft, SVG.holder.parentElement.offsetWidth - SVG.marginRight);
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y = SVG.newCoordinates(SVG.raw_points[point][1], scale.minY, scale.maxY, SVG.marginBottom, SVG.holder.parentElement.offsetHeight - SVG.marginTop);
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circle = document.createElementNS(SVG.ns, 'circle');
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circle.setAttribute('class', 'point');
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circle.setAttribute('cx', x);
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circle.setAttribute('cy', y);
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circle.setAttribute('r', 4);
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circle.setAttribute('fill', '#333');
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circle.setAttribute('stroke', '#3f72bf');
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circle.setAttribute('stroke-width', 2);
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SVG.g.appendChild(circle);
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circle.addEventListener('mouseover', function() { this.setAttribute('r', '6'); })
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circle.addEventListener('mouseout', function() { this.setAttribute('r', '4'); })
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if(points.length > 0) {
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last_point = points[points.length - 1];
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line = document.createElementNS(SVG.ns, 'line');
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line.setAttribute('class', 'line');
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line.setAttribute('x1', last_point[0]);
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line.setAttribute('x2', x);
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line.setAttribute('y1', last_point[1]);
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line.setAttribute('y2', y);
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line.setAttribute('stroke', '#3f72bf');
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line.setAttribute('stroke-width', 2);
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SVG.g.appendChild(line);
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}
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points.push([x, y]);
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}
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}
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var old = window.onresize || function() {};
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window.onresize = function() {
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old();
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if(SVG.g !== false) {
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SVG.g.setAttribute('transform', 'translate(0, ' + SVG.holder.parentElement.offsetHeight + ') scale(1, -1)');
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[].forEach.call(SVG.holder.querySelectorAll('.point, .line'), function(el) {
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el.parentElement.removeChild(el);
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});
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SVG.draw();
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}
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}
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