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00:00:00.000","topen":"6.53","tclose":"6.52","minclose":"6.47","maxclose":"6.58","qty":"6162700","amount":"40176646.19"},{"time":"2017-07-21 00:00:00.000","topen":"6.47","tclose":"6.52","minclose":"6.47","maxclose":"6.54","qty":"3349900","amount":"21807482.00"},{"time":"2017-07-24 00:00:00.000","topen":"6.52","tclose":"6.55","minclose":"6.52","maxclose":"6.64","qty":"7916398","amount":"52044542.80"},{"time":"2017-07-25 00:00:00.000","topen":"6.60","tclose":"6.63","minclose":"6.58","maxclose":"6.72","qty":"6519545","amount":"43250315.34"},{"time":"2017-07-26 00:00:00.000","topen":"6.63","tclose":"6.45","minclose":"6.33","maxclose":"6.63","qty":"12339743","amount":"79861463.86"},{"time":"2017-07-27 00:00:00.000","topen":"6.45","tclose":"6.45","minclose":"6.35","maxclose":"6.50","qty":"8810922","amount":"56754659.08"},{"time":"2017-07-28 00:00:00.000","topen":"6.44","tclose":"6.39","minclose":"6.37","maxclose":"6.46","qty":"6204291","amount":"39757229.53"},{"time":"2017-07-31 00:00:00.000","topen":"6.40","tclose":"6.45","minclose":"6.36","maxclose":"6.48","qty":"6115687","amount":"39319643.35"},{"time":"2017-08-01 00:00:00.000","topen":"6.47","tclose":"6.45","minclose":"6.43","maxclose":"6.48","qty":"5437571","amount":"35087794.04"},{"time":"2017-08-02 00:00:00.000","topen":"6.46","tclose":"6.39","minclose":"6.30","maxclose":"6.49","qty":"7227552","amount":"46184976.24"},{"time":"2017-08-03 00:00:00.000","topen":"6.39","tclose":"6.40","minclose":"6.37","maxclose":"6.43","qty":"3889920","amount":"24915404.80"},{"time":"2017-08-04 00:00:00.000","topen":"6.39","tclose":"6.40","minclose":"6.38","maxclose":"6.43","qty":"4203800","amount":"26914256.00"},{"time":"2017-08-07 00:00:00.000","topen":"6.40","tclose":"6.63","minclose":"6.39","maxclose":"6.69","qty":"12693373","amount":"83252054.58"},{"time":"2017-08-08 00:00:00.000","topen":"6.66","tclose":"6.55","minclose":"6.52","maxclose":"6.66","qty":"5734662","amount":"37697396.86"},{"time":"2017-08-09 00:00:00.000","topen":"6.58","tclose":"6.71","minclose":"6.57","maxclose":"6.77","qty":"9916362","amount":"66490457.72"},{"time":"2017-08-10 00:00:00.000","topen":"6.75","tclose":"6.63","minclose":"6.62","maxclose":"6.77","qty":"5699100","amount":"38102590.00"},{"time":"2017-08-11 00:00:00.000","topen":"6.66","tclose":"6.58","minclose":"6.51","maxclose":"6.66","qty":"4929691","amount":"32425518.14"},{"time":"2017-08-14 00:00:00.000","topen":"6.58","tclose":"6.65","minclose":"6.56","maxclose":"6.71","qty":"5056692","amount":"33674854.96"},{"time":"2017-08-15 00:00:00.000","topen":"6.69","tclose":"6.60","minclose":"6.56","maxclose":"6.69","qty":"3738302","amount":"24672683.12"},{"time":"2017-08-16 00:00:00.000","topen":"6.61","tclose":"6.61","minclose":"6.55","maxclose":"6.65","qty":"2917600","amount":"19223430.00"},{"time":"2017-08-17 00:00:00.000","topen":"6.63","tclose":"6.62","minclose":"6.59","maxclose":"6.64","qty":"3233300","amount":"21404935.27"},{"time":"2017-08-18 00:00:00.000","topen":"6.62","tclose":"6.57","minclose":"6.53","maxclose":"6.62","qty":"4897600","amount":"32146796.40"},{"time":"2017-08-21 00:00:00.000","topen":"6.58","tclose":"6.72","minclose":"6.55","maxclose":"6.78","qty":"9423702","amount":"62596442.88"}],"status":0}';
var jsonArray = JSON.parse(data_json);
var FT = jsonArray.FT;
var dataArr = new Array();
for (var i = 0; i < FT.length; i++) {
var A1 = new Array();
A1[0] = setTime(FT[i].time);
var A2 = new Array();
A2[0] = parseFloat(FT[i].topen).toFixed(2);
A2[1] = parseFloat(FT[i].tclose).toFixed(2);
A2[2] = parseFloat(FT[i].minclose).toFixed(2);
A2[3] = parseFloat(FT[i].maxclose).toFixed(2);
A1[1] = A2;
dataArr.push(A1);
}
var MA5 = calculateMA(5, dataArr);
var MA10 = calculateMA(10, dataArr);
var MA20 = calculateMA(20, dataArr);
var MA30 = calculateMA(30, dataArr);
// 声明所需变量
var canvas, ctx; //canvas DOM canvas上下文
// 图表属性
var cWidth, cHeight, cMargin, cSpace; //canvas中部的宽/高 canvas内边距/文字边距
var originX, originY; //坐标轴原点
// 图属性
var bMargin, tobalBars, bWidth, maxValue, minValue; //每个k线图间间距 数量 宽度 所有k线图的最大值/最小值
var totalYNomber; //y轴上的标识数量
var showArr; //显示出来的数据部分（因为可以选择范围，所以需要这个数据）
//范围选择属性
var dragBarX, dragBarWidth; //范围选择条中的调节按钮的位置，宽度
// 运动相关变量
var ctr, numctr, speed; //运动的起步，共有多少步，运动速度（timer的时间）
//鼠标移动
var mousePosition = {}; //用户存放鼠标位置
var MA5_ox1, MA5_oy1, MA5_ox2, MA5_oy2;
var MA10_ox1, MA10_oy1, MA10_ox2, MA10_oy2;
var MA20_ox1, MA20_oy1, MA20_ox2, MA20_oy2;
var MA30_ox1, MA30_oy1, MA30_ox2, MA30_oy2;
var point_MA5 = new Array();
var point_MA10 = new Array();
var point_MA20 = new Array();
var point_MA30 = new Array();
goChart(document.getElementById("chart"), dataArr);
drawLineLabelMarkers(); // 绘制图表轴、标签和标记
drawBarAnimate(); // 绘制柱状图的动画
//绘制拖动轴
drawDragBar();
// 绘制图表轴、标签和标记
function drawLineLabelMarkers() {
ctx.font = "24px Arial";
ctx.lineWidth = 2;
ctx.fillStyle = "#000";
ctx.strokeStyle = "#000";
// y轴
drawLine(originX, originY, originX, cMargin);
// x轴
drawLine(originX, originY, originX + cWidth, originY);
// 绘制标记
drawMarkers();
}
function drawMoveLine(x, y, X, Y, color) {
/*绘制二次贝塞尔曲线*/
ctx.strokeStyle = "white";
ctx.beginPath();
ctx.moveTo(x, y);
ctx.quadraticCurveTo((X - x) / 4 + x, y, X, Y);
ctx.strokeStyle = color;
ctx.lineWidth = 0.5;
ctx.stroke();
}
// 画线的方法
function drawLine(x, y, X, Y) {
ctx.strokeStyle = "white";
ctx.beginPath();
ctx.moveTo(x, y);
ctx.lineTo(X, Y);
ctx.stroke();
ctx.closePath();
}
function drawLineWithColor(x, y, X, Y, color) {
ctx.beginPath();
ctx.moveTo(x, y);
ctx.lineTo(X, Y);
ctx.stroke();
ctx.strokeStyle = color;
ctx.lineWidth = 3;
ctx.closePath();
}
function setTime(time) {
time = time.substring(0, 11);
return time;
}
// 绘制标记
function drawMarkers() {
ctx.strokeStyle = "#E0E0E0";
// 绘制 y
var oneVal = (maxValue - minValue) / totalYNomber;
ctx.textAlign = "right";
for (var i = 1; i <= totalYNomber; i++) {
var markerVal = parseInt(i * oneVal + minValue);;
var xMarker = originX - 10;
var yMarker = parseInt(originY - cHeight * (markerVal - minValue) / (maxValue - minValue));
ctx.fillStyle = "white";
ctx.font = "22px Verdana";
ctx.fillText(markerVal, xMarker - 15, yMarker, cSpace); // 文字
if (i > 0) {
drawLine(originX + 1, yMarker - 3, originX - 9, yMarker - 3);
}
}
// 绘制 x
var textNb = 6;
ctx.textAlign = "center";
for (var i = 0; i < tobalBars; i++) {
if (tobalBars > textNb && i % parseInt(tobalBars / 10) != 0) {
continue;
}
var markerVal = dataArr[i][0];
var xMarker = parseInt(originX + cWidth * (i / tobalBars) + bMargin + bWidth / 2);
var yMarker = originY + 30;
ctx.fillStyle = "white";
ctx.font = "22px Verdana";
ctx.fillText(markerVal, xMarker, yMarker, cSpace); // 文字
if (i > 0) {
drawLine(xMarker, originY, xMarker, originY - 10);
}
}
// 绘制标题 y
ctx.save();
ctx.rotate(-Math.PI / 2);
//ctx.fillText("指 数", -canvas.height / 2, cSpace - 20);
ctx.restore();
// 绘制标题 x
//ctx.fillText("日 期", originX + cWidth / 2, originY + cSpace - 20);
};
//绘制k形图
function drawBarAnimate(mouseMove) {
point_MA5 = new Array();
point_MA10 = new Array();
point_MA20 = new Array();
point_MA30 = new Array();
var parsent = ctr / numctr;
for (var i = 0; i < tobalBars; i++) {
var oneVal = parseInt(maxValue / totalYNomber);
var data = dataArr[i][1];
var color = "#30C7C9";
var barVal = data[0];
var disY = 0;
//开盘0 收盘1 最低2 最高3 跌30C7C9 涨D7797F
if (data[1] > data[0]) { //涨
color = "#D7797F";
barVal = data[1];
disY = data[1] - data[0];
} else {
disY = data[0] - data[1];
}
var showH = disY / (maxValue - minValue) * cHeight * parsent;
showH = showH > 2 ? showH : 2;
var barH = parseInt(cHeight * (barVal - minValue) / (maxValue - minValue));
var y = originY - barH;
var x = originX + ((bWidth + bMargin) * i + bMargin) * parsent;
drawMA(MA5, i, x, "MA5");
drawMA(MA10, i, x, "MA10");
drawMA(MA20, i, x, "MA20");
drawMA(MA30, i, x, "MA30");
}
drawBezier(point_MA5, "rgb(194,54,49)", 5);
drawBezier(point_MA10, "rgb(47,69,84)", 10);
drawBezier(point_MA20, "rgb(97,160,168)", 20);
drawBezier(point_MA30, "rgb(212,130,101)", 30);
for (var i = 0; i < tobalBars; i++) {
var oneVal = parseInt(maxValue / totalYNomber);
var data = dataArr[i][1];
var color = "rgb(13,244,155)";
var barVal = data[0];
var disY = 0;
//开盘0 收盘1 最低2 最高3 跌30C7C9 涨D7797F
if (data[1] > data[0]) { //涨
color = "rgb(253,16,80)";
barVal = data[1];
disY = data[1] - data[0];
} else {
disY = data[0] - data[1];
}
var showH = disY / (maxValue - minValue) * cHeight * parsent;
showH = showH > 2 ? showH : 2;
var barH = parseInt(cHeight * (barVal - minValue) / (maxValue - minValue));
var y = originY - barH;
var x = originX + ((bWidth + bMargin) * i + bMargin) * parsent;
drawRect(x, y, bWidth, showH, mouseMove, color, true); //开盘收盘 高度减一避免盖住x轴
//最高最低的线
showH = (data[3] - data[2]) / (maxValue - minValue) * cHeight * parsent;
showH = showH > 2 ? showH : 2;
y = originY - parseInt(cHeight * (data[3] - minValue) / (maxValue - minValue));
drawRect(parseInt(x + bWidth / 2 - 1), y, 2, showH, mouseMove, color); //最高最低 高度减一避免盖住x轴
}
if (ctr < numctr) {
ctr++;
setTimeout(function() {
ctx.clearRect(0, 0, canvas.width, canvas.height);
drawLineLabelMarkers();
drawBarAnimate();
drawDragBar();
}, speed *= 0.03);
}
}
function drawBezier(point, color, num) {
ctx.strokeStyle = color;
ctx.lineWidth = 1;
ctx.beginPath();
ctx.font = "20px SimSun";
ctx.fillStyle = "#ffffff";
for (i = 0; i < point.length; i++) {
if (i < num + 2) {
ctx.moveTo(point[i].x, point[i].y);
} else { //注意是从1开始
var ctrlP = getCtrlPoint(point, i - 1);
ctx.bezierCurveTo(ctrlP.pA.x, ctrlP.pA.y, ctrlP.pB.x, ctrlP.pB.y, point[i].x, point[i].y);
//ctx.fillText("("+point[i].x+","+point[i].y+")",point[i].x,point[i].y);
}
}
ctx.stroke();
}
function getCtrlPoint(ps, i, a, b) {
if (!a || !b) {
a = 0.25;
b = 0.25;
}
//处理两种极端情形
if (i < 1) {
var pAx = ps[0].x + (ps[1].x - ps[0].x) * a;
var pAy = ps[0].y + (ps[1].y - ps[0].y) * a;
} else {
var pAx = ps[i].x + (ps[i + 1].x - ps[i - 1].x) * a;
var pAy = ps[i].y + (ps[i + 1].y - ps[i - 1].y) * a;
}
if (i > ps.length - 3) {
var last = ps.length - 1
var pBx = ps[last].x - (ps[last].x - ps[last - 1].x) * b;
var pBy = ps[last].y - (ps[last].y - ps[last - 1].y) * b;
} else {
var pBx = ps[i + 1].x - (ps[i + 2].x - ps[i].x) * b;
var pBy = ps[i + 1].y - (ps[i + 2].y - ps[i].y) * b;
}
return {
pA: { x: pAx, y: pAy },
pB: { x: pBx, y: pBy }
}
}
function drawMA(MA, i, x, type) {
var MAVal = MA[i];
var MAH = parseInt(cHeight * (MAVal - minValue) / (maxValue - minValue));
var MAy = originY - MAH;
if (type == "MA5") {
MA5_ox1 = x + bWidth / 2;
MA5_oy1 = MAy;
point_MA5.push({ x: MA5_ox1, y: MA5_oy1 });
}
if (type == "MA10") {
MA10_ox1 = x + bWidth / 2;
MA10_oy1 = MAy;
point_MA10.push({ x: MA10_ox1, y: MA10_oy1 });
}
if (type == "MA20") {
MA20_ox1 = x + bWidth / 2;
MA20_oy1 = MAy;
point_MA20.push({ x: MA20_ox1, y: MA20_oy1 });
}
if (type == "MA30") {
MA30_ox1 = x + bWidth / 2;
MA30_oy1 = MAy;
point_MA30.push({ x: MA30_ox1, y: MA30_oy1 });
}
}
//绘制方块
function drawRect(x, y, X, Y, mouseMove, color, ifBigBar, ifDrag) {
ctx.beginPath();
if (parseInt(x) % 2 !== 0) { //避免基数像素在普通分辨率屏幕上出现方块模糊的情况
x += 0;
}
if (parseInt(y) % 2 !== 0) {
y += 0;
}
if (parseInt(X) % 2 !== 0) {
X += 0;
}
if (parseInt(Y) % 2 !== 0) {
Y += 0;
}
ctx.rect(parseInt(x), parseInt(y), parseInt(X), parseInt(Y));
if (ifBigBar && mouseMove && ctx.isPointInPath(mousePosition.x * 2, mousePosition.y * 2)) { //如果是鼠标移动的到柱状图上，重新绘制图表
ctx.strokeStyle = color;
ctx.strokeWidth = 20;
ctx.stroke();
}
//如果移动到拖动选择范围按钮
canvas.style.cursor = "default";
if (ifDrag && ctx.isPointInPath(mousePosition.x * 2, mousePosition.y * 2)) { //如果是鼠标移动的到调节范围按钮上，改变鼠标样式
//console.log(123);
canvas.style.cursor = "all-scroll";
}
ctx.fillStyle = color;
ctx.fill();
ctx.closePath();
}
function drawDragBar() {
drawRect(originX, originY + cSpace, cWidth, cMargin, false, "white");
drawRect(originX, originY + cSpace, dragBarX - originX, cMargin, false, "rgb(87,93,110)");
drawRect(dragBarX, originY + cSpace, dragBarWidth, cMargin, false, "red", false, true);
}
function goChart(cBox, dataArr) {
// 创建canvas并获得canvas上下文
canvas = document.createElement("canvas");
if (canvas && canvas.getContext) {
ctx = canvas.getContext("2d");
}
canvas.innerHTML = "你的浏览器不支持HTML5 canvas";
cBox.appendChild(canvas);
initChart(); // 图表初始化
// 图表初始化
function initChart() {
// 图表信息
cMargin = 40;
cSpace = 80;
//将canvas扩大2倍，然后缩小，以适应高清屏幕
canvas.width = cBox.getAttribute("width") * 2;
canvas.height = cBox.getAttribute("height") * 2;
canvas.style.height = canvas.height / 2 + "px";
canvas.style.width = canvas.width / 2 + "px";
cHeight = canvas.height - cMargin * 2 - cSpace * 2;
cWidth = canvas.width - cMargin * 2 - cSpace * 2;
originX = cMargin + cSpace;
originY = cMargin + cHeight;
showArr = dataArr.slice(0, parseInt(dataArr.length));
// 柱状图信息
tobalBars = showArr.length;
bWidth = parseFloat(cWidth / tobalBars / 3);
bMargin = parseFloat((cWidth - bWidth * tobalBars) / (tobalBars + 1));
//算最大值，最小值
maxValue = 0;
minValue = 9999999;
for (var i = 0; i < dataArr.length; i++) {
var barVal = dataArr[i][1][3];
if (barVal > maxValue) {
maxValue = barVal;
}
var barVal2 = dataArr[i][1][2];
if (barVal2 < minValue) {
minValue = barVal2;
}
}
maxValue += 2; //上面预留20的空间
minValue -= 2; //下面预留20的空间
totalYNomber = 10;
// 运动相关
ctr = 1;
numctr = 20;
speed = 0;
dragBarWidth = 10;
dragBarX = cWidth + cSpace + cMargin - dragBarWidth;
}
}
//检测鼠标移动
var mouseTimer = null;
addMouseMove();
function addMouseMove() {
canvas.addEventListener("mousemove", function(e) {
var parsent = ctr / numctr;
var x = event.pageX - canvas.getBoundingClientRect().left - 60;
var y = -event.pageY + canvas.getBoundingClientRect().top + 400;
if (y > 0 && x > 0) {
var positionx = 1;
for (var i = 0; i < tobalBars; i++) {
if (x >= (1080 / tobalBars) * i) {
positionx = i + 1;
}
}
var xx = originX + ((bWidth + bMargin) * (positionx - 1) + bMargin) * parsent;
ctx.clearRect(0, 0, canvas.width, canvas.height);
drawLineLabelMarkers();
drawBarAnimate(true);
drawDragBar();
drawLineWithColor(parseInt(xx + bWidth / 2 - 1), 40, parseInt(xx + bWidth / 2 - 1), 800);
drawDashLine(ctx, 120, canvas.getBoundingClientRect().top + event.pageY * 2 - 90, 760 * 3, canvas.getBoundingClientRect().top + event.pageY * 2 - 90, 5);
var vx=10;
var vy=canvas.getBoundingClientRect().top + event.pageY * 2 - 90-20;
ctx.beginPath();
ctx.moveTo(vx, vy);
ctx.lineTo(vx+100, vy);
ctx.lineTo(vx+100, vy+40);
ctx.lineTo(vx, vy+40);
ctx.lineTo(vx, vy); //绘制最后一笔使图像闭合
ctx.lineWidth = 2;
ctx.fillStyle="rgb(104,113,130)";
ctx.fill();
ctx.stroke();
var ch=parseFloat((maxValue-minValue)*y*2/cHeight+minValue).toFixed(2);
ctx.fillStyle="white";
ctx.fillText(ch, vx+50, vy+30, 50); // 文字
vx=parseInt(xx + bWidth / 2 - 1)+20;
vy=canvas.getBoundingClientRect().top + event.pageY * 2 - 90+20;
ctx.beginPath();
ctx.moveTo(vx, vy);
ctx.lineTo(vx+200, vy);
ctx.lineTo(vx+200, vy+330);
ctx.lineTo(vx, vy+330);
ctx.lineTo(vx, vy); //绘制最后一笔使图像闭合
ctx.lineWidth = 2;
ctx.fillStyle="rgba(104,113,130,0.5)";
ctx.fill();
ctx.stroke();
ctx.fillStyle="white";
ctx.textAlign = "left";
ctx.fillText(dataArr[positionx-1][0], vx+20, vy+30, 150); // 文字
ctx.fillText("开盘价："+dataArr[positionx-1][1][0], vx+20, vy+70, 150); // 文字
ctx.fillText("收盘价："+dataArr[positionx-1][1][1], vx+20, vy+105, 150); // 文字
ctx.fillText("最高价："+dataArr[positionx-1][1][2], vx+20, vy+140, 150); // 文字
ctx.fillText("最低价："+dataArr[positionx-1][1][3], vx+20, vy+175, 150); // 文字
ctx.fillText("MA5："+MA5[positionx-1], vx+20, vy+210, 150); // 文字
ctx.fillText("MA10："+MA10[positionx-1], vx+20, vy+245, 150); // 文字
ctx.fillText("MA20："+MA20[positionx-1], vx+20, vy+280, 150); // 文字
ctx.fillText("MA30："+MA30[positionx-1], vx+20, vy+315, 150); // 文字
} else {
e = e || window.event;
if (e.offsetX || e.offsetX == 0) {
mousePosition.x = e.offsetX;
mousePosition.y = e.offsetY;
} else if (e.layerX || e.layerX == 0) {
mousePosition.x = e.layerX;
mousePosition.y = e.layerY;
}
clearTimeout(mouseTimer);
mouseTimer = setTimeout(function() {
ctx.clearRect(0, 0, canvas.width, canvas.height);
drawLineLabelMarkers();
drawBarAnimate(true);
drawDragBar();
}, 10);
}
});
}
//监听拖拽
canvas.onmousedown = function(e) {
if (canvas.style.cursor != "all-scroll") {
return false;
}
document.onmousemove = function(e) {
e = e || window.event;
if (e.offsetX || e.offsetX == 0) {
dragBarX = e.offsetX * 2 - dragBarWidth / 2;
} else if (e.layerX || e.layerX == 0) {
dragBarX = e.layerX * 2 - dragBarWidth / 2;
}
if (dragBarX <= originX) {
dragBarX = originX
}
if (dragBarX > originX + cWidth - dragBarWidth) {
dragBarX = originX + cWidth - dragBarWidth
}
var nb = Math.ceil(dataArr.length * ((dragBarX - cMargin - cSpace) / cWidth));
showArr = dataArr.slice(0, nb || 1);
// 柱状图信息
tobalBars = showArr.length;
bWidth = parseFloat(cWidth / tobalBars / 3);
bMargin = parseFloat((cWidth - bWidth * tobalBars) / (tobalBars + 1));
}
document.onmouseup = function() {
document.onmousemove = null;
document.onmouseup = null;
}
}
function getBeveling(x, y) {
return Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2));
}
function drawDashLine(context, x1, y1, x2, y2, dashLen) {
dashLen = dashLen === undefined ? 5 : dashLen;
//得到斜边的总长度
var beveling = getBeveling(x2 - x1, y2 - y1);
//计算有多少个线段
var num = Math.floor(beveling / dashLen);
for (var i = 0; i < num; i++) {
context[i % 2 == 0 ? 'moveTo' : 'lineTo'](x1 + (x2 - x1) / num * i, y1 + (y2 - y1) / num * i);
}
context.stroke();
}
function calculateMA(dayCount, data) {
var result = [];
for (var i = 0, len = data.length; i < len; i++) {
if (i < dayCount) {
result.push("-");
continue;
}
var sum = 0;
for (var j = 0; j < dayCount; j++) {
sum = parseFloat(sum) + parseFloat(data[i - j][1][1]);
}
result.push(parseFloat(parseFloat(sum) / parseFloat(dayCount)).toFixed(2));
}
return result;
}
</script>
