amcharts4

问题 I'm displaying 3 charts (Gauge chart, Pie chart, XYChart) -using amChart4 and I'm fetching data from backend (sqlite3). Here I'm using some real time data i.e., for every minute data is added in database and I'm fetching that data and displaying it in chart. In order to fetch regularly I'm using socket . After some time page becomes unresponsive (chrome alert msg). It crashes. Below is my code for the client-side (Front end). product.service.ts init() { this.getConfig(); this._todayWithSec =

问题 Currently, in amchart4, the legends can be used to show / hide the target series on click. I would like the behaviour wherein on clicking on the legend: Do not hide the clicked series. Hide all other series except the one that was clicked so as to show only the seires whose legend that was clicked. This question is on the back of an older question targetting amcharts3. However, since v4 is significantly different from v3, the answer does not work. Based on the documentation here, it appears

问题 Currently, in amchart4, the legends can be used to show / hide the target series on click. I would like the behaviour wherein on clicking on the legend: Do not hide the clicked series. Hide all other series except the one that was clicked so as to show only the seires whose legend that was clicked. This question is on the back of an older question targetting amcharts3. However, since v4 is significantly different from v3, the answer does not work. Based on the documentation here, it appears

问题 I have upgrade Amchart version 3 to 4. In Amchart Version 3, PDF Conversion with HIQ PDF, It's Working fine but After implementation of Amchart version 4, It's taking wait time 5 sec to 50 sec in PDF Conversion in AMChart 4 for 9 charts in Page. If number of charts increase in html content, PDF is getting blank or half loaded. Steps for reproduce the issue. I have attached link of html file with Amchart 4 content. (Html content of Amcharts) Paste the html content to HiQ PDF online converter

问题 Im trying to update the data of my am4charts.XYChart with javascript and i cannt I have tryed to do again the am4core.create("chartdiv", am4charts.XYChart); but i have a warning doing that. This is my chart in the HTML code <div id="chartdiv"></div> This is How I initialize the chart am4core.ready(function () { // Themes begin am4core.useTheme(am4themes_animated); // Themes end var chart = am4core.create("chartdiv", am4charts.XYChart); var data = []; for (var i = 0; i < jsonArray.length; i++)

问题 In AMCharts version 3, there is a demo showing how to highlight a particular column. Is this possible using AMCharts version 4? For example, in the Simple Column demo, highlight the UK column based on its value (ie, where country = 'UK' ). I tried modifying the example at https://stackoverflow.com/a/54358490/906814 but I can't get a handle on the columns in order to assess their values and then apply the active state highlight (JSFiddle). // copied from https://stackoverflow.com/a/54358490

问题 In AMCharts version 3, there is a demo showing how to highlight a particular column. Is this possible using AMCharts version 4? For example, in the Simple Column demo, highlight the UK column based on its value (ie, where country = 'UK' ). I tried modifying the example at https://stackoverflow.com/a/54358490/906814 but I can't get a handle on the columns in order to assess their values and then apply the active state highlight (JSFiddle). // copied from https://stackoverflow.com/a/54358490

问题 **The reference - https://www.amcharts.com/demos/stacked-area/ It only plots one single user on y axis whereas I want all users data in stacked line area. I guess I need to create a function on data series, but really don't know how to do that. I want X axis to be Date , Y axis to be value scale showing multi-line users [A,B,C,D] ** < script > var df = [{ "User": "A", "Date": 1570492800000, "value_act": 3.4 }, { "User": "B", "Date": 1570492800000, "value_act": 1.6 }, { "User": "C", "Date":

问题 I am trying to apply filters to my JS object, where <%=strKey%> is a dynamically scripted object name, so, each iteration, the name changes. // dynamically writing JS - key value is the chart name var <%=strKey%> = am4core.create("<%=strKey%>", am4charts.GaugeChart); // has to mach the HTML IDs <%=strKey%>.innerRadius = am4core.percent(82); // innerRadius begins at 82%, leaving white-space inside the gauge The documentation lists JSON format only. How would I apply this to my implementation?

问题 How can I Remove "Js charts by amcharts" Text from the amchart bar chart. is there a way to do this using chart configuration? Please check the text in Fiddle. 回答1: The branding text is on the free version. If you want to remove the text, you have to purchase a license. See the license FAQ for information on what license is appropriate for your use case. If you already have a license and are using AmCharts v3, just download the files from the support site, upload them to your web server and