我创建了一个与datepicker相结合的图表。使用日期时间,开放,高,低,关闭所选日期从SQL数据库中获取数据。
我测试了每种方法来格式化xAxis,以便unzoomed tickinterval是1小时,如7:00 8:00 9:00 ......
我希望能够放大,以便最小间隔为1分钟,如7:00 7:01 7:02 ......
第一个问题是,对于每一个点,格式总是看起来像yyyy-mm-dd hh:mm:ss。更改tickInvterval后,它看起来更好但仍然错误,并且无法进行1分钟间隔的缩放功能。 在将数据库拆分为单个日期和时间列后,我解决了日期问题,但显然高图仍然没有意识到它是一个时差,因为xAxis设置如下所示:(应显示hh:mm但图表显示hh:mm: SS)
xAxis: {
type: 'datetime',
dateTimeLabelFormats: {
minute: '%H:%M'},
tickInterval: 60},
至少不打算拆分数据库,因为在查询过程中应该有一种方法可以用来将sql datetime更改为javatime格式。 我现在搜索了几天,但没有找到正确的答案......也许是因为我对这些东西太新了...... :)
这是生成图表的代码:
$(document).ready(function() {
Highcharts.setOptions({
global: {
useUTC: false
}
});
options = {
chart:{
zoomType: 'x',
renderTo: 'container'
},
title: {
text: 'Charts',
style: {
fontFamily: 'Verdana',
fontSize: '20px',
fontWeight: 'bold'
}
},
subtitle: {
text: 'Chart 1',
style: {
fontFamily: 'Verdana',
fontSize: '15px',
fontWeight: 'bold'
}
},
xAxis: {
type: 'datetime',
dateTimeLabelFormats: {
minute: '%H:%M',
},
tickInterval: 60
},
yAxis: [{
labels: {
format: '{value}',
style: {
color: '#eeeeee'
}
},
title: {
text: 'Realtime',
style: {
color: '#eeeeee'
}
}
}, {
title: {
enabled: false,
text: 'Graph1',
style: {
color: '#4572A7'
}
},
labels: {
enabled: false,
format: '',
style: {
color: '#4572A7'
}
},
opposite: true
},{
title: {
enabled: false,
text: 'Graph2',
style: {
color: '#89A54E'
}
},
reversed: true,
labels: {
enabled: false,
format: '',
style: {
color: '#89A54E'
}
},
opposite: true
}],
tooltip: {
backgroundColor: {
linearGradient: { x1: 0, y1: 0, x2: 0, y2: 1 },
stops: [
[0, 'rgba(96, 96, 96, .8)'],
[1, 'rgba(16, 16, 16, .8)']
]
},
borderWidth: 1,
borderColor: '#666666',
crosshairs: true,
shared: true,
useHTML: true,
dateTimeLabelFormats: {
minute: '%H:%M'},
style: {
padding: 10,
fontWeight: 'bold'
},
formatter: function() {
var s = '<b><span style="font-size: 12px; color: #cccccc">'+ this.x +'</span></b>';
$.each(this.points, function(i, point) {
s += '<br/><br/><span style="font-size: 16px; color: #cccccc">'+ point.series.name +': '+ point.y +'</span>';
});
return s;
},
shared: true
},
legend:
{
enabled: true,
itemStyle: {
color: '#eeeeee',
}
},
credits:
{
enabled: false
},
plotOptions: {
spline: {
lineWidth: 4,
states: {
hover: {
lineWidth: 5
}
},
marker: {
enabled: false
},
},
area: {
fillColor: {
linearGradient: { x1: 0, y1: 0, x2: 0, y2: 1},
stops: [
[0, 'rgb(204, 204, 204)'],
[1, 'rgba(204, 204, 204,0)']
]
},
lineWidth: 1,
marker: {
enabled: false
},
shadow: false,
states: {
hover: {
lineWidth: 1
}
},
threshold: null
}
},
series: [{
name: 'Realtime',
type: 'area',
color: '#cccccc',
data: []
}, {
name: 'Graph1',
type: 'spline',
yAxis: 1,
color: '#0077cc',
enableMouseTracking: false,
data: []
}, {
name: 'Graph2',
type: 'spline',
yAxis: 2,
color: '#89A54E',
enableMouseTracking: false,
data: []
}]
}
$.getJSON('data.php', function(json) {
val1 = [];
val2 = [];
val3 = [];
$.each(json, function(key,value) {
val1.push([value[0], value[1]]);
val2.push([value[0], value[2]]);
val3.push([value[0], value[3]]);
});
options.series[0].data = json['data1'];
options.series[1].data = json['data2'];
options.series[2].data = json['data3'];
options.xAxis.categories = json['datetime'];
chart = new Highcharts.Chart(options);
});
});
$(function() {
$( "#datepicker" ).datepicker({
beforeShowDay: $.datepicker.noWeekends,
dateFormat: "yy-mm-dd",
onSelect: function(dateText, inst) {
$.getJSON("data.php?dateParam="+dateText, function(json){
val1 = [];
val2 = [];
val3 = [];
$.each(json, function(key,value) {
val1.push([value[0], value[1]]);
val2.push([value[0], value[2]]);
val3.push([value[0], value[3]]);
});
options.series[0].data = json['data1'];
options.series[1].data = json['data2'];
options.series[2].data = json['data3'];
options.xAxis.categories = json['datetime'];
chart = new Highcharts.Chart(options);
});
}
});
});
这是php:
<?php
session_start();
?>
<?php
define('DB_SERVER',"localhost");
define('DB_NAME',"db");
define('DB_USER',"");
define('DB_PASSWORD',"");
$con = mysql_connect(DB_SERVER, DB_USER, DB_PASSWORD);
if (!$con) {
die('Could not connect: ' . mysql_error());
}
mysql_select_db(DB_NAME, $con);
if (isset($_GET["dateParam"])) {
$sql = mysql_query("SELECT datetime, open, high, close FROM data WHERE datetime LIKE '".$_GET["dateParam"]."%'");
} else {
$sql = mysql_query("SELECT datetime, open, high, close FROM data WHERE DATE(datetime) = CURDATE()");
}
while($r = mysql_fetch_array($sql)) {
$result['datetime'][] = $r['datetime'];
$result['data1'][] = $r['open'];
$result['data2'][] = $r['close'];
$result['data3'][] = $r['high'];
}
print json_encode($result, JSON_NUMERIC_CHECK);
mysql_close($con);
?>
答案 0 :(得分:1)
您的tickInterval
非常小。它设置为60毫秒。如果您希望tickInterval
为一分钟,则需要将其设置为乘以10k:
tickInterval: 60 * 10000
这应该解决它,因为即使你说使用'%H:%M'
你的分辨率要小得多。
编辑:
所以,一些事情。见jsFiddle。
您需要设置一个开始时间(总是很好的练习),如果不提供{x, y}
数据,则需要告诉它数据点之间有多长时间。为此,您可以:
series: [{
pointStart: Date.UTC(2010, 0, 1),
pointInterval: 60000, //every minute there is data.
name: 'Realtime',
type: 'area',
data: [8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500, 8500]
}]
重要的部分是pointStart
和pointInterval
。我还在chart: {}
选项中将最大缩放级别设置为一分钟:
maxZoom: 60000
答案 1 :(得分:0)
您可以使用tickPositioner来动态http://api.highcharts.com/highstock#xAxis.tickPositioner
来计算滴答答案 2 :(得分:0)
我测试了你的修正,看起来很棒jsfiddle,但我遇到的问题比以前更多...... 现在我的时间看起来像“1262304000000”......并且标签缩放功能仍然不起作用...... 你写道:“你需要设置一个开始时间(总是很好的练习),如果不提供{x,y}数据,你需要告诉它数据点之间有多长时间。” 对不起,但我在途中更改了xAxis数据以找到解决方案...... 旧的和可能正确的版本是从sql数据库中捕获timeformat,正如你在我的代码中看到的那样:
xAxis: { categories: [],
和
options.xAxis.categories = json['datetime'];
但这也会导致同样的问题。
答案 3 :(得分:0)
非常感谢,最后我得到了大部分功能,问题是
options.xAxis.categories = json['datetime'];
但是...... :) 我正在收到市场数据,其中每天都会丢失一些微小的数据,例如7:00,7:01,7:03等等。并且使用xAxis日期时间格式Highchart没有意识到这一点并且只计算时间,因此最后显示的刻度例如是21:40而不是应该是22:00。 这就是我想从数据库日期时间收到x值的原因,我显然无法做到这一点。 有人有想法吗?
这是到目前为止的代码,工作得非常好:
$(document).ready(function() {
Highcharts.setOptions({
});
options = {
chart:
{
backgroundColor: {
linearGradient: { x1: 0, y1: 0, x2: 0, y2: 1 },
stops: [
[0, 'rgb(51, 51, 51)'],
[1, 'rgb(16, 16, 16)']
]
},
borderColor: '#666666',
borderWidth: 1,
borderRadius: 0,
zoomType: 'x',
maxZoom: 60000,
renderTo: 'container'
},
title:
{
text: 'Realtime',
margin: 50,
style: {
fontFamily: 'Verdana',
fontSize: '20px',
fontWeight: 'bold',
color: '#cccccc'
}
},
subtitle:
{
text: 'Chart 1',
style: {
fontFamily: 'Verdana',
fontSize: '15px',
fontWeight: 'bold',
color: '#CCCCCC'
}
},
xAxis: {
type: 'datetime',
dateTimeLabelFormats: {
minute: '%H:%M'
}
},
yAxis: [{ // first yAxis
labels: {
format: '{value}',
style: {
color: '#eeeeee'
}
},
title: {
text: 'Realtime',
style: {
color: '#eeeeee'
}
}
}, { // Second yAxis
title: {
enabled: false,
text: 'Graph1',
style: {
color: '#4572A7'
}
},
labels: {
enabled: false,
format: '',
style: {
color: '#4572A7'
}
},
opposite: true
},{ // Third yAxis
title: {
enabled: false,
text: 'Graph2',
style: {
color: '#89A54E'
}
},
reversed: true,
labels: {
enabled: false,
format: '',
style: {
color: '#89A54E'
}
},
opposite: true
}],
tooltip: {
xDateFormat: '%H:%M',
shared: true,
backgroundColor: {
linearGradient: { x1: 0, y1: 0, x2: 0, y2: 1 },
stops: [
[0, 'rgba(96, 96, 96, .8)'],
[1, 'rgba(16, 16, 16, .8)']
]
},
borderWidth: 1,
borderColor: '#666666',
crosshairs: true,
useHTML: true,
formatter: function() {
var s = '<b><span style="font-size: 12px; color: #cccccc">'+ Highcharts.dateFormat('%H:%M', this.x) +' Uhr</span></b>';
$.each(this.points, function(i, point) {
s += '<br/><span style="font-size: 16px; color: #cccccc">'+ point.series.name +': '+ point.y +'</span>';
});
return s;
}
},
legend:
{
enabled: true,
itemStyle: {
color: '#eeeeee',
}
},
credits:
{
enabled: false
},
plotOptions: {
spline: {
lineWidth: 4,
states: {
hover: {
lineWidth: 5
}
},
marker: {
enabled: false
},
},
area: {
fillColor: {
linearGradient: { x1: 0, y1: 0, x2: 0, y2: 1},
stops: [
[0, 'rgb(204, 204, 204)'],
[1, 'rgba(204, 204, 204,0)']
]
},
lineWidth: 1,
marker: {
enabled: false
},
shadow: false,
states: {
hover: {
lineWidth: 1
}
},
threshold: null
}
},
series: [{
pointStart: Date.UTC(2010, 0, 1, 8),
pointInterval: 60000,
name: 'Realtime',
type: 'area',
color: '#cccccc',
data: []
}, {
pointStart: Date.UTC(2010, 0, 1, 8),
pointInterval: 60000,
name: 'Graph1',
type: 'spline',
yAxis: 1,
color: '#0077cc',
enableMouseTracking: false,
data: []
}, {
pointStart: Date.UTC(2010, 0, 1, 8),
pointInterval: 60000,
name: 'Graph2',
type: 'spline',
yAxis: 2,
color: '#89A54E',
enableMouseTracking: false,
data: []
}]
}
$.getJSON('data.php', function(json) {
val1 = [];
val2 = [];
val3 = [];
$.each(json, function(key,value) {
val1.push([value[0], value[1]]);
val2.push([value[0], value[2]]);
val3.push([value[0], value[3]]);
});
options.series[0].data = json['data1'];
options.series[1].data = json['data2'];
options.series[2].data = json['data3'];
chart = new Highcharts.Chart(options);
});
});
$(function() {
$( "#datepicker" ).datepicker({
beforeShowDay: $.datepicker.noWeekends,
dateFormat: "yy-mm-dd",
onSelect: function(dateText, inst) {
$.getJSON("data.php?dateParam="+dateText, function(json){
val1 = [];
val2 = [];
val3 = [];
$.each(json, function(key,value) {
val1.push([value[0], value[1]]);
val2.push([value[0], value[2]]);
val3.push([value[0], value[3]]);
});
options.series[0].data = json['data1'];
options.series[1].data = json['data2'];
options.series[2].data = json['data3'];
chart = new Highcharts.Chart(options);
});
}
});
});