​2. [文件] lqdpie.html ~ 801B     下载(7)

刘强东吃饼

Your browser does not support the HTML5 canvas tag.

var config = {

id: 'p',

type: '%',

data: [

['刘强东',18.4],['老虎基金',22.1],['HHGL',15.8],['DST',11.2],['BAI',9.5],['Fortune ising',5.3],['Kingdom',5.0],['红杉资本',2.0],

]

};

var p= pie(config);

p.render();

3. [文件] pie.js ~ 3KB

(function() {

var Pie = (function() {

var F = function(conf) {

this.type=null;

this.id=null;

this.total=0;

this.container=null;

this.data=[];

this.init(conf);

return this;

};

F.prototype = {

defaultBgcolor: ['deeppink', 'mediumslateblue', 'chartreuse', 'goldenrod', "#ffff00", "#2F368F", "#F6A25D", "#2CA8E0", "#77D1F6", '#181818', '#45AB35', "#336699", "#5fD1F6"],

init: function(options) {

for (var p in options) {

this[p] = options[p];

}

this.container = document.getElementById(this.id);

},

percentize: function() {

if (this.type && this.type == '%') {

var sum = 0;

for (var i = 0; i < this.data.length; i++) {

sum += this.data[i][1];

if (this.data[i + 1] && (sum + this.data[i + 1][1]) > 100) {

break;

}

}

if (i != this.data.length) {

this.data = this.data.splice(0, i + 1);

}

if (sum != 100) {

this.data.push(['?', Math.ceil(100 - sum), '#282828']);

}

} else {

var sum = 0;

for (var i = 0; i < this.data.length; i++) {

sum += this.data[i][1];

}

if (0 == this.total) {

this.total = sum;

}

if (this.total - sum > 0) {

this.data.push(['?', this.total - sum, '#282828']);

}http://www.enterdesk.com/special/shouhui/​

for (var i = 0; i < this.data.length; i++) {

this.data[i][1] = Math.round((this.data[i][1] / this.total) * 100);

}手绘图片

}

},

renderPie: function() {

var x = this.container.clientWidth * .33;

var y = this.container.clientHeight * .5;

var radius = (x > y) ? y : x;

var ctx = this.container.getContext("2d");

var startPoint = 0;

for (var i = 0; i < this.data.length; i++) {

if (null == this.data[i][2]) {

this.data[i][2] = this.defaultBgcolor[i % this.defaultBgcolor.length];

}

ctx.fillStyle = this.data[i][2];

ctx.beginPath();

ctx.moveTo(x, y);

ctx.arc(x, y, radius, startPoint, startPoint + Math.PI * 2 * (this.data[i][1] / 100), false);

ctx.fill();

startPoint += Math.PI * 2 * (this.data[i][1] / 100);

}

return true;

},

renderLabel: function() {

var table = ['

for (var i = 0; i < this.data.length; i++) {

table.push('

');

table.push(this.data[i][0]);

table.push("

");

if (this.type && this.type == '%') {

table.push(this.data[i][1] + "%");

} else {

table.push(Math.ceil(this.total * this.data[i][1] / 100));

}

table.push("

");

}

table.push("

");

this.container.insertAdjacentHTML("afterEnd", '

');

},

render: function() {

this.percentize();

this.renderPie();

this.renderLabel();

return true;

}

};

var Pie = function(conf) {

return new F(conf);

},

r;

return Pie;

})();

window.pie = Pie;

})(window);