I am using Sencha Touch charts 1.0.0 for my project. I would like to add values on each point in my line chart (as in image). I tried the same approach in this question for column chart, but it didn't work out.
I had the same problem with you. But i find a solution instead for that. You can add marker at each node of line and when you click on marker a popup will show detail information as you want. This's my code may help you :
-Add marker in cofig of series :
type: 'line',
title: 'Clickeds : ' + total[4] + ' ( ' + Math.round(arrInfo[4]) + '% )',
highlightCfg: { scale : 0.7 },
xField: 'Date', yField: 'Clks',
style : {
stroke: 'rgb(50, 185, 150)',
miterLimit : 3,
lineCap: 'miter',
lineWidth: 2
}
,
marker:{
type: 'image',
src: 'resources/images/square.png',
width: 24,
height: 24,
x: -12,
y: -12,
scale: 0.5,
fx: {
duration: 200
}
}
Handle event when you click on node, you add listeners to config of chart : `listeners: {
itemtap: function( series, item, event, eOpts ){
//handle your code here.
}`
Regards,
(Sorry for bad english.)
Related
is there any way to create shape or create marks on chart in custom indicator using tradingview charting library. I am using this way to create custom indicators. Thanks in advance.
Yes you can. Here is the guide.
For the callouts/Markers on chart you can follow this guide in the JS API.
https://github.com/tradingview/charting_library/wiki/JS-Api#gettimescalemarkssymbolinfo-from-to-ondatacallback-resolution
For getmarks you can do this
getMarks: (symbolInfo, startDate, endDate, onDataCallback, resolution) => {
var Arr = [
{
id: 1,
time: 1551448800000 / 1000,
color: 'blue',
text: 'Hello world',
label: 'B',
labelFontColor: 'yellow',
minSize: 20
},
]
onDataCallback(Arr);
console.log("=====getMarks running");
},
It will plot the marks above the bars as shown in the below image.
For Timescalemarks.
getTimescaleMarks: (symbolInfo,startDate,endDate,onDataCallback,resolution) => {
onDataCallback([
{
id: 1,
time: / 1000,
color: 'Turquoise',
label: 'The test you want to show on marker',
minSize: 20,
tooltip:[
"Information you want to print",
]
},
]);
})
The Time scale marks will look like this. And they will be plotted below the bars.
And for the shapes like circles and arrows you can follow this documentation. And use the createMultipointShape(points, options) methos to plot your shapes.
https://github.com/tradingview/charting_library/wiki/Chart-Methods#createmultipointshapepoints-options
I am using c3.js for implementing dashboard. It works pretty fine. But I just want legend on top as appeared at bottom. I want to draw chart as this sequence.
Legends
Chart
Ticks
This is sample figure what is want.
By searching in web, if I set legend configuration like this
legend: {
show: true,
position: 'inset',
inset: {
anchor: 'top-right',
x: 50,
y: 0,
step: 1
}
}
Then legend overlaps main graph as image below:
This is very typical requirement but not available in c3js. How can I do that?.
Use the padding option to set a top gap:
http://c3js.org/reference.html#padding-top
And then set a negative y offset on the inset:
legend: {
position: 'inset',
inset: {
anchor: 'top-right',
x: 50,
y: -30,
step: 1
}
},
padding: {
top: 30
}
I used this exmaple http://dygraphs.com/tests/smooth-plots.html to draw smooth lines. When I anable the smoothing by plotter: smoothPlotter small dots at data points disappear. I have set drawPoints: true. Dot is displayed when mouse is on the curve.
How can I enable small dots at data points ( http://dygraphs.com/options.html#drawPoints ) and still use smoothing?
I have not found a way to enable pointdrawing. But you can make a second series with the same data and draw only the points, not the lines. Like so:
new Dygraph(document.getElementById('graph'),
functionData,
{
series: {
Straight: {
color: 'red',
strokeWidth: 0,
drawPoints: true,
pointSize: 7
},
Smoothed: {
plotter: smoothPlotter,
color: 'red',
strokeWidth: 2
}
},
});
http://jsfiddle.net/wLxs4ju1/
I am using morris.js (which has a dependency on raphael) for creating stacked bar graphs. For each stacked bar I want to show the split for the various levels in the bar as a tooltip. I tried using the hoverCallback: but it doesn't seem to give me control over the particular element I am hovering over. I only get the content for that particular bar.
I have setup a JSBIN example for the same here:
When you hover over the bar it shows the index of the bar at the bottom. I want to show the content as a tool tip instead.JSBIN example
Piece of cake. Demo and code:
<script type="text/javascript">
Morris.Bar({
element: 'bar-example',
data: [
{y: '2006',a: 100,b: 90},
{y: '2007',a: 75,b: 65},
{y: '2008',a: 50,b: 40},
{y: '2009',a: 75,b: 65},
{y: '2010',a: 50,b: 40},
{y: '2011',a: 75,b: 65},
{y: '2012',a: 100,b: 90}
],
hoverCallback: function(index, options, content, row) {
return(content);
},
xkey: 'y',
ykeys: ['a', 'b'],
stacked: true,
labels: ['Series A', 'Series B'] // rename it for the 'onhover' caption change
});
</script>
ARGUMENTS:
1: index: it represents record number i.e. from 0 to n records.
2: content: this is default hover div.
3: option : you data is inside this, before return(content);. do console.log(options) to view details.
4: row : to see the use of row below is an example.
hoverCallback: function (index, options, content, row) {
console.log(row);
var hover = "<div class='morris-hover-row-label'>"+row.period+"</div><div class='morris-hover-point' style='color: #A4ADD3'><p color:black>"+row.park1+"</p></div>";
return hover;
},
UPD:
For flying label, you need to add Morris CSS stylesheet to the code - demo
IMPORTANT NOTE
Flying labels works since version 0.4.3
http://jsbin.com/finuqazofe/1/edit?html,js,output
{ y: ..., x: ..., label: "my own label"},'
...
Morris.Line({
hoverCallback: function(index, options, content) {
var data = options.data[index];
$(".morris-hover").html('<div>Custom label: ' + data.label + '</div>');
},
...
other params
});
I have a working chart with Dojo 1.8.
chart1 = new dojox.charting.Chart2D("chart1");
chart1.addPlot("default", {type: "Lines", ...
chart1.addSeries("Series A", [{ x: 1, y: 2.3, tooltip: "Value 1"}, ...
My data from the series gets displayed correctly as line and the whole line (series) gets the color 'Green'.
I know how to change the color for the whole series, but would it be possible that the line changes its color based on the data values? Lets assume the x-axis is a time axis and I need the line (series) to be green for until today, and then red for the future values.
Would this be possible and how ?
(I am using markers for the values. If these could change based on the value it would be enough)
I found something something like this in the documentation:
chart.addSeries("Series A", [
{y: 4, color: "red"},
{y: 2, color: "green"},
{y: 1, color: "blue"},
{y: 1, text: "Other", **color: "white", fontColor: "red"**}
]);
But it only works for PIE-charts and not for LINES-charts.
Thank you in advance.
You could try this http://jsfiddle.net/jUS54/
Use styleFunc in the addPlot method for change the markers colors:
var chart1 = new Chart("simplechart");
chart1.addPlot("default", {type: Lines, markers:true, styleFunc: function(item {
if(item <= 2){
return { fill : "red" };
}else if(item > 3){
return { fill: "green" };
}
return {};
}});
You can change the color by adding 'fill' to your chart data. Basically, loop through your input data deciding what to set your fill too while constructing the JSON for chartData.
var chartData = [{y: 10000,fill: "red"},{y:9200,fill: "yellow"},{y:11811,fill: "green"},{y:12000,fill: "blue"},{y:7662,fill: "blue"},{y:13887,fill: "black"},{y:14200,fill: "gray"},{y:12222,fill: "purple"},{y:12000,fill: "green"},{y:10009,fill: "purple"},{y:11288,fill: "green"},{y:12099,fill: "blue"}];
http://jsfiddle.net/goinoff/QnNk2/1/