mirror of
https://github.com/bendtherules/line_chart_demo.git
synced 2026-08-18 13:52:30 +00:00
Done axis and hover details
This commit is contained in:
Abhas Bhattacharya
@@ -0,0 +1,320 @@
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// d3.tip
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// Copyright (c) 2013 Justin Palmer
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// ES6 / D3 v4 Adaption Copyright (c) 2016 Constantin Gavrilete
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// Removal of ES6 for D3 v4 Adaption Copyright (c) 2016 David Gotz
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//
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// Tooltips for d3.js SVG visualizations
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d3.functor = function functor(v) {
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return typeof v === "function" ? v : function() {
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return v;
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};
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};
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d3.tip = function() {
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var direction = d3_tip_direction,
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offset = d3_tip_offset,
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html = d3_tip_html,
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node = initNode(),
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svg = null,
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point = null,
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target = null
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function tip(vis) {
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svg = getSVGNode(vis)
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point = svg.createSVGPoint()
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document.body.appendChild(node)
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}
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// Public - show the tooltip on the screen
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//
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// Returns a tip
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tip.show = function() {
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var args = Array.prototype.slice.call(arguments)
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if(args[args.length - 1] instanceof SVGElement) target = args.pop()
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var content = html.apply(this, args),
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poffset = offset.apply(this, args),
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dir = direction.apply(this, args),
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nodel = getNodeEl(),
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i = directions.length,
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coords,
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scrollTop = document.documentElement.scrollTop || document.body.scrollTop,
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scrollLeft = document.documentElement.scrollLeft || document.body.scrollLeft
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nodel.html(content)
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.style('position', 'absolute')
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.style('opacity', 1)
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.style('pointer-events', 'all')
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while(i--) nodel.classed(directions[i], false)
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coords = direction_callbacks[dir].apply(this)
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nodel.classed(dir, true)
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.style('top', (coords.top + poffset[0]) + scrollTop + 'px')
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.style('left', (coords.left + poffset[1]) + scrollLeft + 'px')
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return tip
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}
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// Public - hide the tooltip
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//
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// Returns a tip
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tip.hide = function() {
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var nodel = getNodeEl()
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nodel
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.style('opacity', 0)
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.style('pointer-events', 'none')
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return tip
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}
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// Public: Proxy attr calls to the d3 tip container. Sets or gets attribute value.
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//
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// n - name of the attribute
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// v - value of the attribute
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//
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// Returns tip or attribute value
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tip.attr = function(n, v) {
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if (arguments.length < 2 && typeof n === 'string') {
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return getNodeEl().attr(n)
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} else {
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var args = Array.prototype.slice.call(arguments)
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d3.selection.prototype.attr.apply(getNodeEl(), args)
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}
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return tip
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}
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// Public: Proxy style calls to the d3 tip container. Sets or gets a style value.
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//
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// n - name of the property
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// v - value of the property
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//
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// Returns tip or style property value
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tip.style = function(n, v) {
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// debugger;
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if (arguments.length < 2 && typeof n === 'string') {
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return getNodeEl().style(n)
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} else {
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var args = Array.prototype.slice.call(arguments);
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if (args.length === 1) {
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var styles = args[0];
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Object.keys(styles).forEach(function(key) {
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return d3.selection.prototype.style.apply(getNodeEl(), [key, styles[key]]);
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});
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}
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}
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return tip
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}
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// Public: Set or get the direction of the tooltip
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//
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// v - One of n(north), s(south), e(east), or w(west), nw(northwest),
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// sw(southwest), ne(northeast) or se(southeast)
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//
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// Returns tip or direction
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tip.direction = function(v) {
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if (!arguments.length) return direction
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direction = v == null ? v : d3.functor(v)
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return tip
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}
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// Public: Sets or gets the offset of the tip
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//
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// v - Array of [x, y] offset
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//
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// Returns offset or
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tip.offset = function(v) {
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if (!arguments.length) return offset
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offset = v == null ? v : d3.functor(v)
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return tip
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}
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// Public: sets or gets the html value of the tooltip
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//
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// v - String value of the tip
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//
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// Returns html value or tip
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tip.html = function(v) {
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if (!arguments.length) return html
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html = v == null ? v : d3.functor(v)
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return tip
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}
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// Public: destroys the tooltip and removes it from the DOM
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//
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// Returns a tip
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tip.destroy = function() {
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if(node) {
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getNodeEl().remove();
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node = null;
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}
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return tip;
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}
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function d3_tip_direction() { return 'n' }
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function d3_tip_offset() { return [0, 0] }
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function d3_tip_html() { return ' ' }
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var direction_callbacks = {
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n: direction_n,
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s: direction_s,
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e: direction_e,
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w: direction_w,
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nw: direction_nw,
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ne: direction_ne,
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sw: direction_sw,
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se: direction_se
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};
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var directions = Object.keys(direction_callbacks);
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function direction_n() {
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var bbox = getScreenBBox()
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return {
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top: bbox.n.y - node.offsetHeight,
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left: bbox.n.x - node.offsetWidth / 2
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}
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}
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function direction_s() {
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var bbox = getScreenBBox()
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return {
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top: bbox.s.y,
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left: bbox.s.x - node.offsetWidth / 2
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}
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}
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function direction_e() {
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var bbox = getScreenBBox()
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return {
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top: bbox.e.y - node.offsetHeight / 2,
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left: bbox.e.x
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}
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}
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function direction_w() {
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var bbox = getScreenBBox()
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return {
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top: bbox.w.y - node.offsetHeight / 2,
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left: bbox.w.x - node.offsetWidth
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}
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}
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function direction_nw() {
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var bbox = getScreenBBox()
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return {
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top: bbox.nw.y - node.offsetHeight,
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left: bbox.nw.x - node.offsetWidth
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}
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}
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function direction_ne() {
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var bbox = getScreenBBox()
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return {
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top: bbox.ne.y - node.offsetHeight,
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left: bbox.ne.x
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}
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}
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function direction_sw() {
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var bbox = getScreenBBox()
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return {
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top: bbox.sw.y,
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left: bbox.sw.x - node.offsetWidth
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}
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}
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function direction_se() {
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var bbox = getScreenBBox()
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return {
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top: bbox.se.y,
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left: bbox.e.x
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}
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}
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function initNode() {
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var node = d3.select(document.createElement('div'))
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node
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.style('position', 'absolute')
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.style('top', 0)
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.style('opacity', 0)
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.style('pointer-events', 'none')
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.style('box-sizing', 'border-box')
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return node.node()
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}
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function getSVGNode(el) {
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el = el.node()
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if(el.tagName.toLowerCase() === 'svg')
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return el
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return el.ownerSVGElement
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}
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function getNodeEl() {
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if(node === null) {
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node = initNode();
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// re-add node to DOM
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document.body.appendChild(node);
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};
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return d3.select(node);
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}
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// Private - gets the screen coordinates of a shape
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//
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// Given a shape on the screen, will return an SVGPoint for the directions
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// n(north), s(south), e(east), w(west), ne(northeast), se(southeast), nw(northwest),
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// sw(southwest).
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//
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// +-+-+
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// | |
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// + +
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// | |
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// +-+-+
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//
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// Returns an Object {n, s, e, w, nw, sw, ne, se}
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function getScreenBBox() {
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var targetel = target || d3.event.target;
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while ('undefined' === typeof targetel.getScreenCTM && 'undefined' === targetel.parentNode) {
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targetel = targetel.parentNode;
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}
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var bbox = {},
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matrix = targetel.getScreenCTM(),
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tbbox = targetel.getBBox(),
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width = tbbox.width,
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height = tbbox.height,
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x = tbbox.x,
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y = tbbox.y
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point.x = x
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point.y = y
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bbox.nw = point.matrixTransform(matrix)
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point.x += width
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bbox.ne = point.matrixTransform(matrix)
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point.y += height
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bbox.se = point.matrixTransform(matrix)
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point.x -= width
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bbox.sw = point.matrixTransform(matrix)
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point.y -= height / 2
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bbox.w = point.matrixTransform(matrix)
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point.x += width
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bbox.e = point.matrixTransform(matrix)
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point.x -= width / 2
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point.y -= height / 2
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bbox.n = point.matrixTransform(matrix)
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point.y += height
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bbox.s = point.matrixTransform(matrix)
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return bbox
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}
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return tip
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};
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@@ -28,7 +28,11 @@ body
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background-color: rgba(0,0,0,0.1);
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}
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line-chart
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.d3-tip
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{
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background-color: rgba(255,255,255,0.85);
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font-size: 1.2em;
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padding: 0 .35em;
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border-radius: .5em;
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}
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@@ -6,6 +6,7 @@
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<link rel="stylesheet" href="index.css">
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<script type="text/javascript" src="d3.v4.min.js"></script>
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<script type="text/javascript" src="d3-selection-multi.v0.4.min.js"></script>
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<script type="text/javascript" src="d3-tip.js"></script>
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<script type="text/javascript" src="jquery.min.js"></script>
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</head>
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<body>
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@@ -1,6 +1,10 @@
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var all_data_points = []; // all_data_points = [ [[x1,y1],[x2,y2],[another point]], [another chart] ]
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var axisTickPadding = 25;
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var axisLabelPadding = 25;
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var axisPadding = axisTickPadding + axisLabelPadding;
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// gather all data
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d3.selectAll("line-chart").each( function () {
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var ele = d3.select(this)
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@@ -34,40 +38,40 @@ list_line_chart.each( function (data_chart, index_chart) {
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}
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}
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var drawing_width = parent_width - axisPadding;
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var drawing_height = parent_height - axisPadding;
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// prepare scales
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var xscale = d3.scaleLinear().
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// set domain with an immediately invoked function
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domain(function (arr_point) {
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var max_val = d3.max(arr_point,function (point) {
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return point[0];
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})
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}) * 1.1;
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var min_val = 0;
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return [min_val,max_val];
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}(data_chart)).
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// set region to svg width and height
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range([0,parent_width])
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range([0,drawing_width])
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var yscale = d3.scaleLinear().
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// set domain with an immediately invoked function
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domain(function (arr_point) {
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var max_val = d3.max(arr_point,function (point) {
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return point[1];
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})
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}) * 1.1;
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var min_val = 0;
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return [min_val,max_val];
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}(data_chart)).
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// set region to svg width and height
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range([parent_height,0])
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range([drawing_height,0])
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var ele_svg = ele_chart.append("svg");
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var ele_svg = ele_chart.append("svg").attr("width",parent_width).attr("height",parent_height);
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ele_svg.attr("width",parent_width).attr("height",parent_height).
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selectAll("circle").data(function(d) {return d;}).enter().append("circle").
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attr("r",5).
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attr("cx",function (d) {return xscale(d[0]);}).
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attr("cy",function (d) {return yscale(d[1]);})
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var ele_drawingArea = ele_svg.append("g").
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attr("width",drawing_width).attr("height",drawing_height).
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attr("transform","translate("+axisPadding+",0)")
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ele_svg.selectAll("line").data(function(d){
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// draw the lines
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var arr_ele_lines = ele_drawingArea.
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selectAll("line").data(function(d){
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return d.map(function (val,index,arr) {
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if (index < arr.length - 1)
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{
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@@ -94,4 +98,106 @@ list_line_chart.each( function (data_chart, index_chart) {
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"stroke-width":"2"
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})
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// draw the points
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var arr_ele_points = ele_drawingArea.
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selectAll("circle").data(function(d) {return d;}).enter().append("circle").
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attr("r",5).
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attr("cx",function (d) {return xscale(d[0]);}).
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attr("cy",function (d) {return yscale(d[1]);})
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// create axis objects
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var xaxis = d3.axisBottom()
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.scale(xscale)
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.ticks(10);
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var yaxis = d3.axisLeft()
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.scale(yscale)
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.ticks(10);
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// add axis to svg
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ele_svg.
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append("g").classed("xaxis",true).
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call(xaxis).
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attr("transform","translate("+axisPadding+","+drawing_height+")")
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ele_svg.
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append("g").classed("yaxis",true).
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call(yaxis).
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attr("transform","translate("+axisPadding+","+"0)")
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// create, add and show tip on mouseover
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var tip_points = d3.tip()
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.attr('class', 'd3-tip')
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.html(function(d) { return "("+d[0]+","+d[1]+")"; })
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var vis = ele_drawingArea
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// REQUIRED: Call the tooltip on the context of the visualization
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.call(tip_points)
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arr_ele_points.
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on('mouseover', function () {
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tip_points.show.apply(this,arguments);
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var ele_point = d3.select(this);
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ele_point.
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transition().
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duration(.5).
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attrs({
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"fill":"rgb(128,128,128)",
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"r":7
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})
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}).
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on('mouseout', function () {
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tip_points.hide.apply(this,arguments);
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var ele_point = d3.select(this);
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ele_point.
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transition().
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duration(.5).
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attrs({
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"fill":"black",
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"r":5
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})
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})
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arr_ele_lines.
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on('mouseover', function () {
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var ele_line = d3.select(this);
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ele_line.
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transition().
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duration(.5).
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attrs({
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"stroke":"rgb(128,128,128)",
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"stroke-width":4
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})
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}).
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on('mouseout', function () {
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var ele_line = d3.select(this);
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ele_line.
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transition().
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duration(.5).
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attrs({
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"stroke":"black",
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"stroke-width":2
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})
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})
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// axis legend
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ele_svg
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.append('g').classed("x-label",true)
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.attr('transform', 'translate(' + (axisPadding+(parent_width - axisPadding)/2) + ', ' + (parent_height - axisLabelPadding/2) + ')')
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.append('text')
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.attr('text-anchor', 'middle')
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// .attr('transform', 'rotate(-90)')
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.text('X Axis Label')
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;
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ele_svg
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.append('g').classed("y-label",true)
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.attr('transform', 'translate(' + (axisLabelPadding) + ', ' + (parent_height - axisPadding)/2 + ')')
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.append('text')
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.attr('text-anchor', 'middle')
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.attr('transform', 'rotate(-90)')
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.attr("shape-rendering","crispEdges")
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.text('Y Axis Label')
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;
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})
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Reference in New Issue
Block a user