Missing date on Amcharts x-axis - amcharts

I'm trying to build a simple graph. X-axis is month, Y-axis is value. Here is the demo of my graph
var chart = AmCharts.makeChart("chartdiv", {
"type": "xy",
"theme": "light",
"dataDateFormat": "DD-MM-YYYY",
"graphs": [
{
"id":"g8",
"balloon":{
"drop":true,
"adjustBorderColor":false,
"color":"#ffffff"
},
"bullet":"round",
"bulletBorderAlpha":1,
"bulletColor":"#FFFFFF",
"bulletSize":5,
"dashLength":0,
"hideBulletsCount":50,
"lineThickness":2,
"lineColor":"#67b7dc",
"title":"Store 8",
"useLineColorForBulletBorder":true,
"xField":"d1",
"yField":"p1",
"xAxis":"g8",
"balloonText":"<span style='font-size:18px;'>$[[d2]]</span><br>07/1/2017-12/31/2017"
}
],
"valueAxes": [
{
"id": "g8",
"axisAlpha": 1,
"gridAlpha": 1,
"axisColor": "#b0de09",
"color": "#b0de09",
"dashLength": 5,
"centerLabelOnFullp": true,
"position": "bottom",
"type": "date",
"minp": "DD-MM-YYYY",
"markPeriodChange": false,
}
],
"dataProvider": [
{
"d1":"01/01/2017",
"p1":"5353.9000"
},{
"d1":"02/01/2017",
"p1":"5353.9000"
},{
"d1":"01/02/2017",
"p1":"5288.9500"
},{
"d1":"01/03/2017",
"p1":"6850.9900"
},{
"d1":"01/04/2017",
"p1":"5543.1900"
},{
"d1":"01/05/2017",
"p1":"5519.0100"
},{
"d1":"01/06/2017",
"p1":"6191.7500"
}
]
});
https://jsfiddle.net/noroots/xru967ha/
I don't know why, but X-axis labels missing June and all labels looks like having left offset. How can I move it to the left and show missing month?

You could add data items before and after without drawing points:
"dataProvider": [{
"d1":"01/12/2016"
}, {
"d1":"01/01/2017",
"p1":"5353.9000"
}, ...
Please check the example here: https://jsfiddle.net/xru967ha/5/
Old Answer
Please check the example below. It's using AmSerialChart and then the datePadding plugin to set 15 extra days at the beginning and the end of your data.
"categoryAxis": {
"parseDates": true,
"minPeriod": "MM",
"prependPeriods": 0.5, // add 15 days start
"appendPeriods": 0.5 // add 15 days to end
}
var chart = AmCharts.makeChart("chartdiv", {
"type": "serial",
"theme": "light",
"marginRight": 40,
"marginLeft": 60,
"dataDateFormat": "DD-MM-YYYY",
"valueAxes": [{
"id": "v1",
"axisAlpha": 0,
"position": "left",
"ignoreAxisWidth": true,
"dashLength": 5
}],
"graphs": [{
"id": "g1",
"balloon":{
"drop":true,
"adjustBorderColor":false,
"color":"#ffffff"
},
"bullet": "round",
"bulletBorderAlpha": 1,
"bulletColor": "#FFFFFF",
"bulletSize": 5,
"hideBulletsCount": 50,
"lineThickness": 2,
"lineColor":"#67b7dc",
"title": "red line",
"useLineColorForBulletBorder": true,
"valueField": "p1",
"balloonText": "<span style='font-size:18px;'>[[value]]</span>"
}],
"chartCursor": {
"pan": true,
"valueLineEnabled": true,
"valueLineBalloonEnabled": true,
"cursorAlpha":1,
"cursorColor":"#258cbb",
"limitToGraph":"g1",
"valueLineAlpha":0.2,
"valueZoomable":true
},
"categoryField": "d1",
"categoryAxis": {
"parseDates": true,
"minorGridEnabled": true,
"axisColor": "#b0de09",
"color": "#b0de09",
"dashLength": 5,
"boldPeriodBeginning": false,
"markPeriodChange": false,
"minPeriod": "MM",
"prependPeriods": 0.5,
"appendPeriods": 0.5
},
"export": {
"enabled": true
},
"dataProvider": [
{
"d1":"01/01/2017",
"p1":"5353.9000"
},{
"d1":"02/01/2017",
"p1":"5353.9000"
},{
"d1":"01/02/2017",
"p1":"5288.9500"
},{
"d1":"01/03/2017",
"p1":"6850.9900"
},{
"d1":"01/04/2017",
"p1":"5543.1900"
},{
"d1":"01/05/2017",
"p1":"5519.0100"
},{
"d1":"01/06/2017",
"p1":"6191.7500"
}
]
});
#chartdiv {
width : 800px;
height : 500px;
}
<script src="https://www.amcharts.com/lib/3/amcharts.js"></script>
<script src="https://www.amcharts.com/lib/3/serial.js"></script>
<script src="//www.amcharts.com/lib/3/plugins/tools/datePadding/datePadding.min.js"></script>
<script src="https://www.amcharts.com/lib/3/plugins/export/export.min.js"></script>
<link rel="stylesheet" href="https://www.amcharts.com/lib/3/plugins/export/export.css" type="text/css" media="all" />
<script src="https://www.amcharts.com/lib/3/themes/light.js"></script>
<div id="chartdiv"></div>

Related

Loading JSON data into AmCharts using the dataloader plugin

I'm am trying to create a chart using AmCharts by loading JSON output from a webservice using the dataloader plugin from this URL http://portal.eyeo.se/datapump_amchart.ashx. For some reason, only a few items from my data are visible as you can see here: http://portal.eyeo.se/historychart
What am I doing wrong?
Code below:
<script src="amcharts/amcharts.js"></script>
<script src="amcharts//serial.js"></script>
<script src="amcharts/plugins/export/export.min.js"></script>
<script src="amcharts/plugins/dataloader/dataloader.min.js"></script>
<link rel="stylesheet" href="amcharts/plugins/export/export.css" type="text/css" media="all" />
<script src="amcharts/themes/light.js"></script>
<!-- Chart code -->
<script>
var chart = AmCharts.makeChart("chartdiv", {
"type": "serial",
"dataLoader": {
"url": "datapump_amchart.ashx",
"format": "json",
"async": "True"
},
"categoryField": "timestamp",
"dataDateFormat": "YYYY-MM-DD HH:NN:SS",
"rotate": false,
"valueAxes": [{
"position": "left",
"title": "SensorVärde"
}],
"categoryAxis": {
"parseDates": true,
"minPeriod": "ss",dateformat that is wron
},
"graphs": [{
"valueField": "value1",
"id": "g1",
"bullets": "round",
"balloon": {
"drop": false,
"adjustBorderColor": false,
"color": "#ffffff",
"type": "smoothedLine"
},
"fillAlphas": 0.2,
"bullet": "round",
"bulletBorderAlpha": 1,
"bulletColor": "#FFFFFF",
"bulletSize": 10,
"hideBulletsCount": 50,
"lineThickness": 5,
"title": "red line",
"useLineColorForBulletBorder": true,
"valueField": "value1",
"fillAlphas": 0.4,
"balloonText": "<div style='margin:5px; font-size:10px;'>Sensorvärde:<b>[[value1]]</b></div>"
}],
"chartCursor": {
"valueLineEnabled": true,
"valueLineBalloonEnabled": true,
"cursorAlpha": 0,
"zoomable": false,
"valueZoomable": true,
"valueLineAlpha": 0.5,
"categoryBalloonDateFormat": "HH:NN:SS, DD MMMM",
"cursorPosition": "mouse"
},
"chartScrollbar": {
"graph": "g1",
"scrollbarHeight": 80,
"backgroundAlpha": 0,
"selectedBackgroundAlpha": 0.1,
"selectedBackgroundColor": "#888888",
"graphFillAlpha": 0,
"graphLineAlpha": 0.5,
"selectedGraphFillAlpha": 0,
"selectedGraphLineAlpha": 1,
"autoGridCount": true,
"color": "#AAAAAA"
},
"export": {
"enabled": true
},
});
</script>
<!-- HTML -->
<div id="chartdiv"></div>
The issue is that your date-based data is in the wrong order. It must be in ascending order when you're using parseDates as mentioned in the documentation.
Important: If this is set to true, the data points needs to come pre-ordered in ascending order. Data with incorrect order might result in visual and functional glitches on the chart.
Fixing the order of your data should solve your problem.

Amchart not initialized with data

Am Chart showing incorrectly, Here is following ajax code, incorrect thumb of chart.
I am using ajax to get the response and initialized the amchart (area)
Ajax json response data
{"success":true,"graph_data":[{"date":"2018-06-21","value":121.65},{"date":"2018-06-20","value":121.65},{"date":"2018-06-19","value":121.5},{"date":"2018-06-18","value":121.3},{"date":"2018-06-17","value":120.55},{"date":"2018-06-16","value":119.84},{"date":"2018-06-14","value":119.88}],"min_period":"DD","message":null}
Here code which I am initializing for amchart
var chart = AmCharts.makeChart( "graph_chart_div", {
"type": "serial",
"theme": "light",
"marginRight": 5,
"marginLeft": 5,
"minPeriod":response.min_period,
"autoMarginOffset": 5,
"dataDateFormat": "YYYY-MM-DD",
"valueAxes": [ {
"id": "v1",
"axisAlpha": 0,
"position": "left",
"ignoreAxisWidth": true
} ],
"balloon": {
"borderThickness": 1,
"shadowAlpha": 0
},
"graphs": [ {
"id": "g1",
"balloon": {
"drop": true,
"adjustBorderColor": false,
"color": "#ffffff",
"type": "smoothedLine"
},
"fillAlphas": 0.2,
"bullet": "round",
"bulletBorderAlpha": 1,
"bulletColor": "#FFFFFF",
"bulletSize": 5,
"hideBulletsCount": 50,
"lineThickness": 2,
"title": "red line",
"useLineColorForBulletBorder": true,
"valueField": "value",
"balloonText": "<span style='font-size:18px;'>[[value]]</span>"
} ],
"chartCursor": {
"valueLineEnabled": true,
"valueLineBalloonEnabled": true,
"cursorAlpha": 0,
"zoomable": false,
"valueZoomable": true,
"valueLineAlpha": 0.5
},
"valueScrollbar": {
"autoGridCount": true,
"color": "#000000",
"scrollbarHeight": 50
},
"categoryField": "date",
"categoryAxis": {
"gridPosition": "start",
"labelRotation": 45,
"minorGridEnabled": true,
/* ENSURE 2 LINES BELOW ARE ADDED */
"autoGridCount": false,
"gridCount": 12,
"parseDates": true,
"dashLength": 1,
// "minorGridEnabled": true
},
"export": {
"enabled": false
},
// "dataProvider": graph_data
"dataProvider": response.graph_data
} );
This is currently initialized chart
I want to show the following chart for my data
Your date data is out of order. AmCharts requires your date-based data to be in date-ascending order when using parseDates.
Important: If this is set to true, the data points needs to come pre-ordered in ascending order. Data with incorrect order might result in visual and functional glitches on the chart.
Once you fix the sort order, your chart will render correctly.

AmCharts zoom on render with dataLoader

I have several amCharts charts where I am trying to set up the default zoom. I can get it to work just fine with my code when using dataProvider such as here: http://jsfiddle.net/f2s32ojL/7/
When I try to do it on my own site but using dataLoader from a database, it does not work. It just gives me a default zoom of the entire dataset instead of the timeframe I want to use. Here is the code:
var chart = AmCharts.makeChart("chartdivFC", {
"type": "serial",
"dataLoader": {
"url": "includes/fc-chart-data2.php",
"format": "json"
},
"theme": "light",
"marginRight": 40,
"marginLeft": 40,
"autoMarginOffset": 20,
"mouseWheelZoomEnabled":true,
"dataDateFormat": "YYYY-MM-DD HH:NN:SS",
"valueAxes": [{
"id": "v1",
"axisAlpha": 0,
"position": "left",
"ignoreAxisWidth":true,
"guides": [{
"value": 0,
"toValue": "<?=$min_FC?>",
"fillColor": "#CC0000",
"inside": true,
"fillAlpha": 0.1,
"lineAlpha": 0
}]
}],
"balloon": {
"borderThickness": 1,
"shadowAlpha": 0
},
"graphs": [{
"id": "g1",
"balloon":{
"drop":true,
"adjustBorderColor":false,
"color":"#ffffff"
},
"bullet": "round",
"bulletBorderAlpha": 1,
"bulletColor": "#FFFFFF",
"bulletSize": 5,
"hideBulletsCount": 50,
"lineThickness": 2,
"title": "red line",
"useLineColorForBulletBorder": true,
"valueField": "FC",
"balloonText": "<span style='font-size:18px;'>[[FC]]</span>"
}],
"chartScrollbar": {
"graph": "g1",
"oppositeAxis":false,
"offset":30,
"scrollbarHeight": 50,
"backgroundAlpha": 0,
"selectedBackgroundAlpha": 0.1,
"selectedBackgroundColor": "#888888",
"graphFillAlpha": 0,
"graphLineAlpha": 0.5,
"selectedGraphFillAlpha": 0,
"selectedGraphLineAlpha": 1,
"autoGridCount":true,
"color":"#AAAAAA"
},
"chartCursor": {
"pan": true,
"valueLineEnabled": true,
"valueLineBalloonEnabled": true,
"cursorAlpha":1,
"cursorColor":"#258cbb",
"limitToGraph":"g1",
"valueLineAlpha":0.2,
"valueZoomable":true
},
"categoryField": "date",
"categoryAxis": {
"parseDates": true,
"dashLength": 1,
"minorGridEnabled": true
},
"export": {
"enabled": true
},
"listeners": [{
"event": "rendered",
"method": function(event) {
event.chart.zoom(new Date(2017, 10, 1), new Date(2017, 11, 1));
}
}]
});
The json of the dataLoader looks like this:
[{"date":"2016-08-04 14:18:49","FC":"9"},{"date":"2016-08-04 14:44:30","FC":"9"},{"date":"2016-08-04 20:33:11","FC":"7.5"},{.....
Does anyone have any ideas how to make this work?
Thank you.
The reason why it doesn't work is because rendered fires before the dataLoader finishes loading your data; rendered fires when the chart area is rendered, regardless of whether data actually exists in the chart, so by the time you see the "Loading data" message pop up, the event has already fired.
You have two options:
1) Use the complete callback in the dataLoader to call the zoom method after the data has been loaded. Note that you have to wrap the zoom in a setTimeout call:
"dataLoader": {
"url": "includes/fc-chart-data2.php",
"complete": function(chart) {
setTimeout(function() {
chart.zoom(new Date(2017, 10, 1), new Date(2017, 11, 1))
});
}
},
2) Use the dataUpdated event instead. Note that this will fire every time you call validateData, which might not be ideal.
"listeners": [{
"event": "dataUpdated",
"method": function(event) {
event.chart.zoom(new Date(2017, 10, 1), new Date(2017, 11, 1));
}
}]

Dynamic Data push for date based fields

I'm trying to push data dynamically to the dataProvider of XY charts in amcharts but I'm not able to achieve that.
My chart is not being drawn.
My x axis would be month and the y axis would be a numeric value.
I tried something like this
all the month and total arrays are declared . My obj looks something like this:
dataProviderObj{(date : 2015-Jan , y :80 , value :80 ),(date : 2015-Feb , y :70 , value :70)};
dataProviderObj={};
I'm trying to push like this
for(i=0;i<=month.length;i++){
dataProviderObj.push{(
"date" : month[i],
"y" : total[i],
"value" : total[i]
)}
}
dataprovider.push(dataProviderObj);
var chart = AmCharts.makeChart("chartdiv", {
"type": "xy",
"theme": "light",
"marginRight": 80,
"dataDateFormat": "YYYY-MMM",
"startDuration": 1.5,
"trendLines": [],
"balloon": {
"adjustBorderColor": false,
"shadowAlpha": 0,
"fixedPosition":true
},
"graphs": [{
"balloonText": "<div style='margin:5px;'><b>[[x]]</b><br>y:<b>[[y]]</b><br>value:<b>[[value]]</b></div>",
"bullet": "diamond",
"id": "AmGraph-1",
"lineAlpha": 0,
"lineColor": "#b0de09",
"fillAlphas": 0,
"valueField": "value",
"xField": "date",
"yField": "y"
}, {
"balloonText": "<div style='margin:5px;'><b>[[x]]</b><br>y:<b>[[y]]</b><br>value:<b>[[value]]</b></div>",
"bullet": "round",
"id": "AmGraph-2",
"lineAlpha": 0,
"lineColor": "#fcd202",
"fillAlphas": 0,
"valueField": "bValue",
"xField": "date",
"yField": "by"
}],
"valueAxes": [{
"id": "ValueAxis-1",
"axisAlpha": 0
}, {
"id": "ValueAxis-2",
"axisAlpha": 0,
"position": "bottom",
"type": "date",
"minimumDate": new Date(2015, 0, 01),
"maximumDate": new Date(2015, 12, 13)
}],
"allLabels": [],
"titles": [],
"dataProvider": dataprovider,
"export": {
"enabled": true
},
"chartScrollbar": {
"offset": 15,
"scrollbarHeight": 5
},
"chartCursor":{
"pan":true,
"cursorAlpha":0,
"valueLineAlpha":0
}
});
I want to get dynamic Date in x axis and dynamic numeric value in y axis with a value . Kindly help me draw such a xy Chart in amcharts
There are two issues -
1) Your logic for populating the dataprovider isn't right. You need to push directly to the dataprovider array in the loop. The logic should be:
var dataprovider = [];
for(i=0;i<=month.length;i++){
dataProvider.push({
"date" : month[i],
"y" : total[i],
"value" : total[i]
});
}
Note the placement of the parentheses and curly braces - you're calling the dataprovider array's push function with the parentheses and you're pushing an object ({ ... }) containing your data into the array.
2) "MMM" is not a supported in dataDateFormat. As you can see in AmCharts' formatting dates documentation, any format with an asterisk is not supported. Your data/dates should look like this in the resulting dataprovider array:
dataprovider = [{
"date": "2015-01",
"y": 19,
"value": 19
},
{
"date": "2015-02",
"y": 18,
"value": 18
},
// etc
]
Here's a demo with correctly formatted data
//dummy data:
var month = [ "2015-01", "2015-02", "2015-03", "2015-04", "2015-05", "2015-06", "2015-07", "2015-08", "2015-09", "2015-10", "2015-11", "2015-12"];
var total = [ 17, 16, 15, 16, 19, 20, 17, 20, 16, 19, 16, 18 ];
var dataprovider = [];
for(var i=0;i<=month.length;i++){
dataprovider.push({
"date" : month[i],
"y" : total[i],
"value" : total[i]
});
}
var chart = AmCharts.makeChart("chartdiv", {
"type": "xy",
"theme": "light",
"marginRight": 80,
"dataDateFormat": "YYYY-MM",
"startDuration": 1.5,
"trendLines": [],
"balloon": {
"adjustBorderColor": false,
"shadowAlpha": 0,
"fixedPosition": true
},
"graphs": [{
"balloonText": "<div style='margin:5px;'><b>[[x]]</b><br>y:<b>[[y]]</b><br>value:<b>[[value]]</b></div>",
"bullet": "diamond",
"id": "AmGraph-1",
"lineAlpha": 0,
"lineColor": "#b0de09",
"fillAlphas": 0,
"valueField": "value",
"xField": "date",
"yField": "y"
}, {
"balloonText": "<div style='margin:5px;'><b>[[x]]</b><br>y:<b>[[y]]</b><br>value:<b>[[value]]</b></div>",
"bullet": "round",
"id": "AmGraph-2",
"lineAlpha": 0,
"lineColor": "#fcd202",
"fillAlphas": 0,
"valueField": "bValue",
"xField": "date",
"yField": "by"
}],
"valueAxes": [{
"id": "ValueAxis-1",
"axisAlpha": 0
}, {
"id": "ValueAxis-2",
"axisAlpha": 0,
"position": "bottom",
"type": "date",
"minimumDate": new Date(2014, 11, 1),
"maximumDate": new Date(2016, 0, 1)
}],
"allLabels": [],
"titles": [],
"dataProvider": dataprovider,
"export": {
"enabled": true
},
"chartScrollbar": {
"offset": 15,
"scrollbarHeight": 5
},
"chartCursor": {
"pan": true,
"cursorAlpha": 0,
"valueLineAlpha": 0
}
});
<script type="text/javascript" src="//www.amcharts.com/lib/3/amcharts.js"></script>
<script type="text/javascript" src="//www.amcharts.com/lib/3/xy.js"></script>
<div id="chartdiv" style="width 100%; height: 400px"></div>

Label frequency property not working in amChart

We have using stacked amChart(serial) for showing graph. We have added a filter functionality for graphs.The user can filter data according to week,month and quarter. We have using bootstrap. The amChart is placed in div having class "col-md-6". When user select week filter the amchart having 52 lables.At that time the bars are very thin. It is very difficult to analyze the data.So we want to increase the label frequency. We have set label frequency into 5 but it is not changing
AmCharts.makeChart("stackedChart", {
"type": "serial",
"theme": "light",
"legend": {
"position": "right",
"useGraphSettings": true,
},
"dataProvider": data,
"valueAxes": [{
"stackType": "regular",
"axisAlpha": 0.3,
"gridAlpha": 0,
"position": "left",
"gridCount": 5
}],
"plotAreaFillAlphas": 0.1,
"graphs": graph,
"categoryField": "Period",
"categoryAxis": {
"gridPosition": "start",
"labelFrequency": 5,
},
"export": {
"enabled": true
}
});
labelFrequency is probably not the best way to go about it. It basically means display a label every X'th grid line.
What you are looking for is pre-zooming the chart. For that you can use maxSelectedSeries. I.e.:
AmCharts.makeChart("stackedChart", {
...
"maxSelectedSeries": 5,
...
});
Also, if you are going to have pre-zoomed chart, you will also need the means to scroll it. For that you need to add a scrolbar:
AmCharts.makeChart("stackedChart", {
...
"maxSelectedSeries": 5,
"chartScrollbar": {},
...
});
Here's the whole chart with the above applied:
AmCharts.makeChart( "stackedChart", {
"type": "serial",
"theme": "light",
"maxSelectedSeries": 5,
"chartScrollbar": {},
"legend": {
"position": "right",
"useGraphSettings": true,
},
"dataProvider": data,
"valueAxes": [ {
"stackType": "regular",
"axisAlpha": 0.3,
"gridAlpha": 0,
"position": "left",
"gridCount": 5
} ],
"plotAreaFillAlphas": 0.1,
"graphs": graph,
"categoryField": "Period",
"categoryAxis": {
"gridPosition": "start"
},
"export": {
"enabled": true
}
} );

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