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I'm using CanvasJS to display some weather data, but the labels seem to have the wrong position relative to their data point.
What is the cause of this?
This is my chart configuration:
animationEnabled: true,
exportEnabled: true,
title: {
text: 'Pronóstico 8 Días',
},
axisX: {
valueFormatString: 'DD MMM,YYYY',
labelAngle: -30,
labelPlacement: 'outside',
labelTextAlign: 'left',
},
axisY: {
title: 'Temperatura',
suffix: ' °C',
minimum: 18,
maximum: 40,
interval: 2,
},
data: [
{
name: 'Mínimas',
type: 'line',
yValueFormatString: '#0.## °C',
showInLegend: true,
indexLabelWrap: true,
indexLabelMaxWidth: 80,
dataPoints: min,
},
{
name: 'Máximas',
type: 'line',
yValueFormatString: '#0.## °C',
showInLegend: true,
indexLabelWrap: true,
indexLabelMaxWidth: 80,
dataPoints: max,
},
],
The issue was the dates were shifting because they included time, so I just turned into day/month/year only.
I am creating a line chart using c3.js. I want to remove the default indicator line to x-axis with the tooltip.
I have tried tooltip formatting but the line remains same.
How this can be done?
grid:{
focus:{
show:false
}
}
May be at that time when person answer this question config parameter not provided but now you can do it through above mention configuration. Reference http://c3js.org/reference.html#grid-focus-show
Example code below
var chart = c3.generate({
data: {
columns: [
['data1', 30, 200, 100, 400, 150, 250],
['data2', 50, 20, 10, 40, 15, 25]
]
},
grid:{
focus:{
show:false
}
}
});
Just override the following css property in .c3-xgrid-focus class:-
.c3-grid .c3-xgrid-focus {
visibility : hidden !important;
}
I could not quickly find a config parameter to turn this feature off in the api doc.
point: {
show: false
},
False to hide the points and true for show the points
Note:
Make sure that you are going to write this after the loading the data and along with your other settings in c3 Generate function
Here is the Example:
http://c3js.org/reference.html#point-show
In below code I have highlighted the code with a comment:
var chart = c3.generate({
bindto: '#CYCLE_CHART',
data: {
columns: [
["Cycletime"].concat(objCycle.cData), ["Downtime"].concat(objDowntime.dData), ["StdCycletime"].concat(objStdCycle.stdCData), ["StdLoadunloadtime"].concat(objStdLUtime.stdLUData),
],
type: 'spline',
types: {
Cycletime: 'bar',
Downtime: 'bar'
},
names: {
Cycletime: 'Cycle time',
Downtime: 'Load time',
StdCycletime: 'Std Cycle time',
StdLoadunloadtime: 'Std Load time'
},
},
axis: {
x: {
label: {
text: 'Cycles',
position: 'outer-center'
},
max: 10,
min: 1,
},
y: {
label: {
text: 'Seconds',
position: 'outer-middle'
},
max: Y_axis,
min: 1,
}
},
// Here!
point: {
show: false
},
tooltip: {
show: true
}
});
According to BonifatiusK´s comment, you should hide them by editing the chartOptions.
{
tooltip: {
show: false
}
}
Overriding CSS properties of c3 is not a good idea.
My CKEDITOR plugin needs to create <select size="15"><option ...></select>, but the size attribute is not directly supported by the creation mechanism. I have tried various ways of adding the size attribute after creation, but so far no joy. Here is what I have; the select is created but it does not get the size attribute.
CKEDITOR.dialog.add('macrosDialog', function(editor) {
return {
// Basic properties of the dialog window: title, minimum size.
title: 'Cadenza Macros',
resizable: CKEDITOR.DIALOG_RESIZE_BOTH,
minWidth: 400,
minHeight: 200,
// Dialog window contents definition.
contents: [
{
// Definition of the Basic Settings dialog tab (page).
id: 'tab-basic',
label: 'Basic Settings',
// The tab contents.
elements: [
{
type: 'select',
id: 'groups',
name: 'groups',
label: 'Groups',
style: "height: 300",
items: [ [ 'Core Scala' ], [ 'Create Courses with Micronautics Cadenza' ], [ 'Java / Scala Interoperability' ], [ 'Play Framework' ] ],
'default': 'Play Framework'
},
{
// Text input field for the macro title (explanation).
type: 'text',
id: 'macroComment',
label: 'Comment',
validate: CKEDITOR.dialog.validate.notEmpty("Explanation field cannot be empty")
}
]
}
],
onLoad: function(e) {
var groups = editor.document.getElement("groups");
groups.setAttribute("size", 15);
//$("#groups").setAttr("size", 15);
},
onChange: function(e) {
alert('Group: ' + this.getValue());
},
// This method is invoked once a user clicks the OK button, confirming the dialog.
onOk: function() {
// The context of this function is the dialog object itself.
// http://docs.ckeditor.com/#!/api/CKEDITOR.dialog
var dialog = this;
// Creates a new <abbr> element.
var abbr = editor.document.createElement('abbr');
// Set element attribute and text, by getting the defined field values.
abbr.setAttribute('title', dialog.getValueOf('tab-basic', 'title'));
abbr.setText(dialog.getValueOf('tab-basic', 'abbr'));
// Finally, inserts the element at the editor caret position.
editor.insertElement(abbr);
}
};
});
I used the html element to insert whatever I wanted:
contents: [
{
id: 'macrosDialog',
label: 'Basic Settings',
// The tab contents.
elements: [
{
type: 'hbox',
id: 'lists',
//style: "vertical-align: top",
widths: [ '25%', '25%', '25%', '25%' ],
children: [
{
type: 'html',
id: 'groups',
name: 'groups',
html: '<select size="15"></select>'
},{
type: 'html',
id: 'courses',
name: 'courses',
html: '<select size="15"></select>'
},{
type: 'html',
id: 'sections',
name: 'sections',
html: '<select size="15"></select>'
},{
type: 'html',
id: 'lectures',
name: 'lectures',
html: '<select size="15"></select>'
},
],
onLoad: function(data) {
var dialog = this.getDialog();
var groups = dialog.getContentElement('macrosDialog', 'lists', 'groups');
console.log(groups);
var courses = dialog.getContentElement('macrosDialog', 'lists', 'courses');
console.log(courses);
var sections = dialog.getContentElement('macrosDialog', 'lists', 'sections');
console.log(sections);
var lectures = dialog.getContentElement('macrosDialog', 'lists', 'lectures');
console.log(lectures);
}
}
]
}
]
I'm creating a grouped bar chart like this:
$("#chart").kendoChart({
dataSource: {
data: rawdata,
group: { field: "Serie" },
},
legend: {
position: "top"
},
plotArea: {
background: "white",
},
seriesDefaults: {
type: "column",
style: "smooth",
stack: true
},
series: [
{
field: 'Valor1',
labels: {
visible: true,
background: '',
format: 'p1',
color: 'white',
position: 'center'
},
}
],
valueAxis: {
max: 1,
labels: {
format: "p2"
},
line: {
visible: false
},
axisCrossingValue: -10,
},
categoryAxis: {
field: "Segmento",
majorGridLines: {
visible: false
}
},
tooltip: {
visible: true,
template: "#= series.name # <br /> " +
"Valor = #= kendo.format('{0:p2}', value) # <br/> " +
"Tooltip = #= dataItem.Tooltip # ",
}
});
My data has four properties: Serie, Segmento, Valor1, Tooltip. Example of one data point:
{
"Serie": "S1",
"Segmento": "C1",
"Valor1": 0.31500380634422465,
"Tooltip": 20,
}
The values of the stack bar are incorrect in chrome but in firefox and ie it's fine.
Correct graph in firefox and ie:
Incorrect graph in chrome:
Here is a live demo: http://trykendoui.telerik.com/anET/9
How can i solve this?
This is a problem with Chrome's implementation of Array.sort; see this discussion.
You can fix it by sorting the data source explicitly:
dataSource: {
data: rawdata,
group: { field: "Serie" },
sort: [{ field: "Serie", dir: "asc"}, { field: "Segmento", dir: "asc"} ]
},
(updated demo)
I am trying to have a live graph of bitcoins that can be running long term with two datasets buy and sell using HighStocks the problem is the data is all live so the graph starts with no data and gets an update every 30 seconds and in those conditions HighStocks doesn't always seem to play nice
I have created a demo which is very close to the final code http://jsfiddle.net/v3z6T/2/! the increment is set to 1 second to speed up the demo, also if you change adaptToUpdatedData to true this has significant lag effects until the lowest navigator interval is exceeded (30s) so be careful
I want the navigator area to work but if i leave it updating with adaptToUpdatedData : true
The graph is very laggy after a short time and I can't leave it running for hours without the whole browser starting to not respond and getting script delay errors
This is strange to me as running for example 8 hours at 30second increments is only 960 data points, not enough to use as much processing and memory as it seems to
If adaptToUpdatedData is false the graph is much faster and the updates stream in ok until one of the navigation buttons is used then the graph is no longer 'live' as the new updates are out of scope, also the navigator starts at 1970 rather than the start of the series data
Does anyone know a way to trigger a navigator refresh or something I can call when I add a new data point that will keep the navigator area updated and keep the graph at the latest data entry point and not stop the page from rendering in a timely fashion? or a better way of using the api or data
Hope that makes sense
The whole idea of this graph is to be kept running for days possibly weeks to get a live view of the data as its progressing and I cant use the handling large datasets example code from HighStocks as the data is all live, not to mention I am not really working with large datasets anyway just constant slow updates
$(function()
{
var curTime = $.now();
var chart = new Highcharts.StockChart({
chart: {
renderTo: 'chartContainer',
zoomType: 'x',
turboThreshold:100,
marker: {
enabled: false,
states: {
hover: {
enabled: true,
radius: 5
}
}
},
shadow: false
},
rangeSelector: {
buttons: [{
count: 30,
type: 'second',
text: '30S'
},{
count: 5,
type: 'minute',
text: '5M'
},{
count: 30,
type: 'minute',
text: '30M'
},{
count: 60,
type: 'minute',
text: '1H'
},{
count: 360,
type: 'minute',
text: '6H'
},{
count: 720,
type: 'minute',
text: '12H'
},{
count: 1,
type: 'day',
text: '1D'
},{
type: 'all',
text: 'All'
}],
inputEnabled: false
},
scrollbar: {
liveRedraw: false
},
title : {
text : 'Live Bitcoin Data'
},
exporting: {
enabled: true
},
navigation: {
buttonOptions: {
theme: {
'stroke-width': 1,
stroke: 'silver',
r: 0,
states: {
hover: {
fill: '#bada55'
},
select: {
stroke: '#039',
fill: '#bada55'
}
}
}
}
},
navigator : {
adaptToUpdatedData: false
},
yAxis: {
title: {
text: 'Price'
}
},
xAxis: {
type: 'datetime'
},
credits: {
enabled: false
},
series: [{
name: 'Sell',
color: '#00FF00',
pointStart: $.now(),
data : [],
tooltip: {
pointFormat: '<span style="color:{series.color}">{series.name}</span>: <b>{point.y}</b> ({point.change}%)<br/>',
valueDecimals: 3,
valuePrefix:"$"
}
},{
name: 'Buy',
color: '#FF00FF',
pointStart: $.now(),
data : [],
tooltip: {
pointFormat: '<span style="color:{series.color}">{series.name}</span>: <b>{point.y}</b> ({point.change}%)<br/>',
valueDecimals: 3,
valuePrefix:"$"
}
}]
});
setInterval(function() {
var chart = $('#chartContainer').highcharts();
var exchangeSellRate = Math.floor(Math.random()*30)+40;
var exchangeBuyRate = Math.floor(Math.random()*30)+40;
var x = $.now();
chart.series[0].addPoint([x,exchangeSellRate],false,false);
chart.series[1].addPoint([x,exchangeBuyRate],true,false);
}, 1000);
});