我正在创建一个Flask应用程序,对于我想要使用Highcharts的图表元素,我已经设法在网页上显示一个图表,但是一旦我尝试显示多个图表,只有一个渲染。
我已经尝试了很多事情,更改变量名称,逐行检查以查看是否存在一个图表的问题。将一个图表注释掉另一个图表以确保它们都能正常工作。最后我检查了Chrome中的脚本以查看返回的内容,一切看起来都很好。
我相信问题出在我的脚本元素中的变量声明中。如果我将它作为chart_id保留,我认为第一个图表被覆盖,但是如果我将var更改为chart_id1和chart_id2,那么两个图表都不会返回?
我试图将“div id = {{chart1ID | safe}}”下的所有变量标记为chart1_id,series1等......以及“id = {{chart2ID | safe}}”下的所有变量为2。我检查Chrome中的代码,所有内容看起来都正确返回,但没有图表呈现。
.../static/main.js
$(document).ready(function() {
$(chart1_id).highcharts({
chart1: chart1,
title1: title1,
xAxis1: xAxis1,
yAxis1: yAxis1,
series1: series1
})
});
$(document).ready(function() {
$(chart2_id).highcharts({
chart2: chart2,
title2: title2,
xAxis2: xAxis2,
yAxis2: yAxis2,
series2: series2
})});
HTML
..../templates/index.html
<body>
<div id={{ chart1ID|safe }} class="chart1" style="height: 500px; width: 500px">
<script>
var chart_id = {{ chart1ID|safe }}
var series = {{ series1|safe }}
var title = {{ title1|safe }}
var xAxis = {{ xAxis1|safe }}
var yAxis = {{ yAxis1|safe }}
var chart = {{ chart1|safe }}
</script>
</div>
<br>
<P>***********************************************************************************</P>
<div id={{ chart2ID|safe }} class="chart2" style="height: 500px; width: 500px">
<script>
var chart_id = {{ chart2ID|safe }}
var series = {{ series2|safe }}
var title = {{ title2|safe }}
var xAxis = {{ xAxis2|safe }}
var yAxis = {{ yAxis2|safe }}
var chart = {{ chart2|safe }}
</script>
</div>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script src="http://code.highcharts.com/highcharts.js"></script>
<script src="../static/main.js"></script>
</body>
蟒蛇
from flask import Flask, render_template
app = Flask(__name__)
@app.route('/')
@app.route('/index')
def index(chart1ID = 'chart1_ID', chart1_type = 'line', chart1_height = 500, chart2ID = 'chart2_ID', chart2_type = 'line', chart2_height = 500):
chart1 = {"renderTo": chart1ID, "type": chart1_type, "height": chart1_height,}
series1 = [{"name": 'Label1', "data": [1,2,3]}, {"name": 'Label2', "data": [9, 10, 11]}]
title1 = {"text": 'Chart 1 Title'}
xAxis1 = {"categories": ['xAxis Data1', 'xAxis Data2', 'xAxis Data3']}
yAxis1 = {"title": {"text": 'yAxis Label'}}
chart2 = {"renderTo": chart2ID, "type": chart2_type, "height": chart2_height,}
series2 = [{"name": 'Label1', "data": [1,2,3]}, {"name": 'Label2', "data": [14, 15, 20]}]
title2 = {"text": 'Second Chart Title'}
xAxis2 = {"categories": ['xAxis Data1', 'xAxis Data2', 'xAxis Data3']}
yAxis2 = {"title": {"text": 'yAxis Label'}}
return render_template('index.html',
chart1ID=chart1ID, chart1=chart1, series1=series1, title1=title1, xAxis1=xAxis1, yAxis1=yAxis1,
chart2ID=chart2ID, chart2=chart2, series2=series2, title2=title2, xAxis2=xAxis2, yAxis2=yAxis2)
if __name__ == "__main__":
app.run(debug = True)
我现在看不到木头的树木,我想这是我忽略的基本东西。这是我目前使用的所有代码,我将其从较大的应用程序中删除,以便在发布问题时更清楚。
谢谢
您只需要将HTML文档中的var更改为var series1,title1等。我的工作代码:
HTML:
<html lang="en">
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="">
<meta name="keywords" content="">
<meta name="author" content="">
<meta charset="utf-8">
{% block head %}
<title>{% block title %}Title!{% endblock %}</title>
{% endblock %}
</head>
<body>
<div id={{ chart1ID|safe }} class="chart1" style="height: 500px; width: 1000px"></div>
<script>
var chart1_id = {{ chart1ID|safe }}
var series1 = {{ series1|safe }}
var title1 = {{ title1|safe }}
var xAxis1 = {{ xAxis1|safe }}
var yAxis1 = {{ yAxis1|safe }}
var chart1 = {{ chart1|safe }}
</script>
<div id={{ chart2ID|safe }} class="chart2" style="height: 500px; width: 1000px">
<script>
var chart2_id = {{ chart2ID|safe }}
var series2 = {{ series2|safe }}
var title2 = {{ title2|safe }}
var xAxis2 = {{ xAxis2|safe }}
var yAxis2 = {{ yAxis2|safe }}
var chart2 = {{ chart2|safe }}
</script>
</div>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script src="http://code.highcharts.com/highcharts.js"></script>
<script src="../static/js/graph.js"></script>
</body>
JavaScript的:
$(document).ready(function() {
$(chart1_id).highcharts({
chart: chart1,
title: title1,
xAxis: xAxis1,
yAxis: yAxis1,
series: series1
});
});
$(document).ready(function() {
$(chart2_id).highcharts({
chart: chart2,
title: title2,
xAxis: xAxis2,
yAxis: yAxis2,
series: series2
})});
和Python:
from flask import Flask, render_template
app = Flask(__name__)
@app.route('/')
@app.route('/index')
def index(chart1ID = 'chart1_ID', chart1_type = 'line', chart1_height = 500,
chart2ID = 'chart2_ID', chart2_type = 'line', chart2_height = 500):
chart1 = {"renderTo": chart1ID, "type": chart1_type, "height": chart1_height,}
series1 = [{"name": 'Label1', "data": [1,2,3]}, {"name": 'Label2', "data": [9, 10, 11]}]
title1 = {"text": 'Chart 1 Title'}
xAxis1 = {"categories": ['xAxis Data1', 'xAxis Data2', 'xAxis Data3']}
yAxis1 = {"title": {"text": 'yAxis Label'}}
chart2 = {"renderTo": chart2ID, "type": chart2_type, "height": chart2_height,}
series2 = [{"name": 'Label1', "data": [1,2,3]}, {"name": 'Label2', "data": [14, 15, 20]}]
title2 = {"text": 'Second Chart Title'}
xAxis2 = {"categories": ['xAxis Data1', 'xAxis Data2', 'xAxis Data3']}
yAxis2 = {"title": {"text": 'yAxis Label'}}
return render_template('index.html', chart1ID=chart1ID, chart1=chart1, series1=series1, title1=title1, xAxis1=xAxis1, yAxis1=yAxis1, chart2ID=chart2ID, chart2=chart2, series2=series2, title2=title2, xAxis2=xAxis2, yAxis2=yAxis2)
if __name__ == "__main__":
app.run(debug = True, host='127.0.0.1', port=5000, passthrough_errors=True)
当您尝试复制此Python代码时,请记住在变量之前格式化等于空格(例如,每个变量之前的一个选项卡 - [tab] chart1 = {...} [tab] series1 = {...}等)。
在您的第一个代码块中,您将图表选项提供给高图,如chart1, title1
等.Highcharts希望这些选项为chart, title
,这两个图表中的结构必须相同(API:https://api.highcharts.com/highcharts/):
.../static/main.js
$(document).ready(function() {
$(chart1_id).highcharts({
chart: chart1,
title: title1,
xAxis: xAxis1,
yAxis: yAxis1,
series: series1
})
});
$(document).ready(function() {
$(chart2_id).highcharts({
chart: chart2,
title: title2,
xAxis: xAxis2,
yAxis: yAxis2,
series: series2
})});
在HTML代码中,您创建了在两个地方具有相同名称的全局js变量,这就是为什么第二个图表的选项将覆盖第一个图表的原因。也许更好的想法是使用图表选项(chartOptions1和chartOptions2)创建两个全局对象,然后使用这些对象初始化图表或仅使用python变量立即初始化highcharts图表对象中的图表:
HTML:
..../templates/index.html
<body>
<div id={{ chart1ID|safe }} class="chart1" style="height: 500px; width: 500px"></div>
<br>
<P>***********************************************************************************</P>
<div id={{ chart2ID|safe }} class="chart2" style="height: 500px; width: 500px"></div>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script src="http://code.highcharts.com/highcharts.js"></script>
<script src="../static/main.js"></script>
<script>
$(document).ready(function() {
var chart1_id = {{ chart1ID|safe }};
var chart2_id = {{ chart2ID|safe }};
$('#' + chart1_id).highcharts({
chart: {{ chart1|safe }},
title: {{ title1|safe }},
xAxis: {{ xAxis1|safe }},
yAxis: {{ yAxis1|safe }},
series: {{ series1|safe }}
});
$('#' + chart2_id).highcharts({
chart: {{ chart2|safe }},
title: {{ title2|safe }},
xAxis: {{ xAxis2|safe }},
yAxis: {{ yAxis2|safe }},
series: {{ series2|safe }}
});
});
</script>
</body>
*更新*所以我无法理解为什么这不起作用。似乎过于简单而无法工作,上面提供了两个很好的答案。
我删除了我正在处理的项目(在PyCharm中构建),然后重建项目并重新启动。使用上面的Sebastian示例,我能够显示两个图表而没有问题。我不知道是否存在缓存问题,某处有一个尾随空间或项目已损坏。为遇到此问题的任何其他人提供的更新。