Develop Reference

Highcharts: Heatmap using CSV

I am trying to load data via CSV file. Now if I have it already on the page as a hidden div, it works great. But trying to load it from a CSV file via Jquery $.get is not working. The x and y axis shows, but the heatmap itself does not.
The javascript looks like this (without the actual file offhand):
$.get('http://www.urltofile.com/cell001.csv', function(csv) {
generateHeatMap($('#heatmapBody'),csv);
});
function generateHeatMap(target,data) {
target.highcharts({
chart: {
type: 'heatmap',
//height: highChartsArguments.chartHeight
margin: [60, 10, 80, 50]
},
boost: {
useGPUTranslations: true
},
title: {
text: 'Highcharts extended heat map',
style: {
color: 'black',
fontSize: '12px',
fontFamily: 'Verdana'
}
},
xAxis: {
type: 'text',
min: 0,
max: 427,
labels: {
align: 'left',
x: 5,
y: 14,
format: '{value}' // long month
},
showLastLabel: false,
tickLength: 16
},
yAxis: {
title: {
text: null
},
labels: {
format: '{value}'
},
minPadding: 0,
maxPadding: 0,
startOnTick: false,
endOnTick: false,
tickPositions: [0, 16, 32, 48, 64, 80, 96, 112, 133],
tickWidth: 1,
min: 0,
max: 133,
reversed: true
},
colorAxis: {
max: 1.5,
min: -1.5,
minColor: '#00FF00',
maxColor: '#FF0000',
stops: [
[0.0, '#00FF00'],
[0.5, '#003319'],
[0.9, '#FF0000'],
[1, '#FF0000']
]
},
credits: {
enabled: false
},
legend: {
enabled: true,
align: 'right',
layout: 'vertical',
margin: 0,
verticalAlign: 'top',
symbolHeight: 60
},
series: [{
name: 'heatmap',
data: {
csv: data
},
boostThreshold: 100,
borderWidth: 0,
nullColor: '#EFEFEF',
tooltip: {
headerFormat: 'Test<br/>',
pointFormat: '{point.x} {point.y}: <b>{point.value}</b>'
},
turboThreshold: Number.MAX_VALUE // #3404, remove after 4.0.5 release
}],
exporting: {
enabled: false
}
});
}
The CSV is over 100K rows. Is that causing a problem perhaps? As a sample, it looks like
Gene,Label,zScore
0,0,3.630958
0,1,1.547901
0,2,-0.604027
0,3,0.486755
0,4,-0.359456
0,5,0.228968
0,6,3.197601
0,7,1.554732
0,8,0.374111
Any help would be appreciated.

You load the data incorrectly. Series object is not responsible for handling csv data. If you use data module, you should move the data from series options to top level options, like this:
data: { // this is how you load the with data module
csv: data
},
series: [{
... // here, options for series goes but not data
}]
Compare your code with the official example: http://jsfiddle.net/gh/get/library/pure/highcharts/highcharts/tree/master/samples/maps/demo/heatmap/

How can I remove the extra space around my Highcharts scatter plot?

I'm trying to build an NBA shot chart generator using Highcharts. So far I've managed to gather the data and plot it, but I'm unable to overlay a court diagram over the chart to finish the job because of the extra space at the right and bottom of the chart.
Here's an Imgur gallery demonstrating what I have now and what I'm trying to achieve.
This is the code I'm using to generate the charts:
var drawChart = function(made, missed) {
$(function () {
$('#container').highcharts({
chart: {
type: 'scatter',
width: 500,
height: 470
},
title: {
text: ""
},
xAxis: {
title: {
enabled: false
},
lineWidth: 0,
gridLineWidth: 0,
minorGridLineWidth: 0,
lineColor: 'transparent',
labels: {
enabled: false
},
minorTickLength: 0,
tickLength: 0
},
yAxis: {
title: {
enabled: false
},
lineWidth: 0,
gridLineWidth: 0,
minorGridLineWidth: 0,
lineColor: 'transparent',
labels: {
enabled: false
},
minorTickLength: 0,
tickLength: 0
},
legend: {
layout: 'vertical',
align: 'left',
verticalAlign: 'top',
x: 250,
y: 400,
floating: true,
backgroundColor: (Highcharts.theme && Highcharts.theme.legendBackgroundColor) || '#FFFFFF',
borderWidth: 1
},
credits: {
enabled: false
},
plotOptions: {
scatter: {
marker: {
radius: 5,
states: {
hover: {
enabled: true,
lineColor: 'rgb(100,100,100)'
}
}
},
states: {
hover: {
marker: {
enabled: false
}
}
},
tooltip: {
headerFormat: '<b>{series.name}</b><br>',
pointFormat: '{point.x} ft, {point.y} ft'
}
}
},
series: [{
name: "Made",
color: 'rgba(223, 83, 83, .5)',
data: made
}, {
name: "Missed",
color: 'rgba(119, 152, 191, .5)',
data: missed
}
]
});
});
}
I've tried fiddling with various spacing and margin options but haven't had any luck.
Thanks.

How to disable tooltip in highcharts gauge?

I try to disable tooltip for gauge but no matter what I do, it doesn't work.
I tried to place:
tooltip: {
enabled: false
}
under chart, pane, series ...
Here is a demo I use: Fiddle
and this is a code:
$('#container').highcharts({
chart: {
type: 'gauge',
plotBackgroundColor: null,
plotBackgroundImage: null,
plotBorderWidth: 0,
plotShadow: false,
tooltip: {
enabled: false
}
},
exporting: {enabled: false},
title: {
text: 'meetings',
//align: 'bottom'
verticalAlign: 'bottom',
y: 10,
style: {
fontWeight: 'bold',
fontSize:'18px'
}
},
pane: {
tooltip: {
enabled: false
},
startAngle: -150,
endAngle: 150,
background: [{
backgroundColor: {
linearGradient: { x1: 0, y1: 0, x2: 0, y2: 1 },
stops: [
[0, '#FFF'],
[1, '#333']
]
},
borderWidth: 0,
outerRadius: '109%'
}, {
backgroundColor: {
linearGradient: { x1: 0, y1: 0, x2: 0, y2: 1 },
stops: [
[0, '#333'],
[1, '#FFF']
]
},
borderWidth: 1,
outerRadius: '107%'
}, {
// default background
}, {
backgroundColor: '#DDD',
borderWidth: 0,
outerRadius: '105%',
innerRadius: '103%'
}]
},
// the value axis
yAxis: {
tooltip: {
enabled: false
},
min: 0,
max: max,
minorTickInterval: 'auto',
minorTickWidth: 0,
minorTickLength: 0,
minorTickPosition: 'inside',
minorTickColor: '#666',
tickPixelInterval: 0,
tickWidth: 0,
tickPosition: 'inside',
tickLength: 0,
tickColor: '#666',
labels: {
step: 2,
rotation: 'auto'
},
title: {
text: '',
y: 150,
style: {
fontWeight: 'bold',
fontSize:'18px'
}
},
plotBands: [{
from: 0,
to: color_threshold_values[0],
color: '#DA2626'
}, {
from: color_threshold_values[0],
to: color_threshold_values[1],
color: '#F19E26'
}, {
from: color_threshold_values[1],
to: color_threshold_max,
color: '#88A61F'
}]
},
series: [{
name: 'Count',
data: [data.count],
dataLabels: {
enabled:false,
borderColor: 'red',
borderWidth: 0,
padding: 5,
shadow: true,
style: {
fontWeight: 'bold',
fontSize:'25px'
}
},
}]
});
Any ideas?

Try adding it to the config object itslef?
http://jsfiddle.net/hesonazx/
$('#container').highcharts({
tooltip: {
enabled: false
},
chart: {
...
});
This is based on the documentation. Notice that the toottip property for a guage type chart doesn't have an enabled option. The general tooltip property does however.

You can just add .highcharts-tooltip{opacity: 0;}
See fiddle http://jsfiddle.net/DIRTY_SMITH/dpyy732d/2/

Highcharts map gradients to y-axis?

I'm trying to get the gradients to map to my y-axis. I have a min of 90 and a max of 150. I want a yellow gradient from the top down to 120 and I want it to be consistent across browsers. Can I do this? Here's my code:
$('#ao_vs_ppv').highcharts({
chart: {
backgroundColor:
{
linearGradient: [0, 215, 0, 220],
stops: [
[0, 'rgb(255,255,50)'],
[1, 'rgb(255,255,255)']
]
},
type: 'scatter'
},
title: {
text: 'Air Overpressure Vs. Peak Particle Velocity'
},
xAxis: {
min: .010,
max: 10,
type: 'logarithmic',
title: {
text: "Peak Particle Velocuty (in/sec)"
},
labels: {
overflow: 'justify'
},
tickmarkPlacement: 'on',
gridLineWidth: 1
},
yAxis: {
min: 90,
max: 150,
title: {
text: 'Air Overpressure (dBL)'
},
tickInterval:10,
labels: {
overflow: 'justify'
}
},
plotOptions: {
scatter: {
tooltip: {
headerFormat: '<b>{series.name}</b><br>',
pointFormat: 'AO: {point.y}dBL<br>PPV: {point.x}in/sec'
}
}
},
legend: {
layout: 'horizontal',
borderWidth: 1,
backgroundColor: '#FFFFFF',
shadow: true
},
series:formatHighChartsScatter(data[i]['x_data'],data[i]['y_data'], seismoNames)
});

Change from backgroundColor to plotBackgroundColor, and use object format, not pixel, see: http://jsfiddle.net/92Nw8/1/
$('#ao_vs_ppv').highcharts({
chart: {
plotBackgroundColor: {
linearGradient: {
x1: 0,
x2: 0,
y1: 1,
y2: 0
},
stops: [
[0, 'rgb(255,255,50)'],
[1, 'rgb(255,255,255)']
]
},
type: 'scatter'
}
}

HighCharts JS Ajax Data Guage

Could someone please assist me on modifying the code from HighCharts Angular Gauge demo to load data from a comma-separated values file?
The comma-separated values column should be specifiable. i.e: data[0], data[1], data[2]
$(function () {
$('#container').highcharts({
chart: {
type: 'gauge',
plotBackgroundColor: null,
plotBackgroundImage: null,
plotBorderWidth: 0,
plotShadow: false
},
title: {
text: 'Speedometer'
},
pane: {
startAngle: -150,
endAngle: 150,
background: [{
backgroundColor: {
linearGradient: { x1: 0, y1: 0, x2: 0, y2: 1 },
stops: [
[0, '#FFF'],
[1, '#333']
]
},
borderWidth: 0,
outerRadius: '109%'
}, {
backgroundColor: {
linearGradient: { x1: 0, y1: 0, x2: 0, y2: 1 },
stops: [
[0, '#333'],
[1, '#FFF']
]
},
borderWidth: 1,
outerRadius: '107%'
}, {
// default background
}, {
backgroundColor: '#DDD',
borderWidth: 0,
outerRadius: '105%',
innerRadius: '103%'
}]
},
// the value axis
yAxis: {
min: 0,
max: 200,
minorTickInterval: 'auto',
minorTickWidth: 1,
minorTickLength: 10,
minorTickPosition: 'inside',
minorTickColor: '#666',
tickPixelInterval: 30,
tickWidth: 2,
tickPosition: 'inside',
tickLength: 10,
tickColor: '#666',
labels: {
step: 2,
rotation: 'auto'
},
title: {
text: 'km/h'
},
plotBands: [{
from: 0,
to: 120,
color: '#55BF3B' // green
}, {
from: 120,
to: 160,
color: '#DDDF0D' // yellow
}, {
from: 160,
to: 200,
color: '#DF5353' // red
}]
},
series: [{
name: 'Speed',
data: [80],
tooltip: {
valueSuffix: ' km/h'
}
}]
},
// Add some life
function (chart) {
if (!chart.renderer.forExport) {
setInterval(function () {
var point = chart.series[0].points[0],
newVal,
inc = Math.round((Math.random() - 0.5) * 20);
newVal = point.y + inc;
if (newVal < 0 || newVal > 200) {
newVal = point.y - inc;
}
point.update(newVal);
}, 3000);
}
});
});
An Example of comma-separated values data being loaded into Highcharts Demo - Ajax loaded data, clickable points.
$(function () {
// Register a parser for the American date format used by Google
Highcharts.Data.prototype.dateFormats['m/d/Y'] = {
regex: '^([0-9]{1,2})\/([0-9]{1,2})\/([0-9]{2})$',
parser: function (match) {
return Date.UTC(+('20' + match[3]), match[1] - 1, +match[2]);
}
};
// Get the CSV and create the chart
$.get('/samples/highcharts/demo/line-ajax/analytics.csv', function (csv) {
$('#container').highcharts({
data: {
csv: csv
},
title: {
text: 'Daily visits at www.highcharts.com'
},
subtitle: {
text: 'Source: Google Analytics'
},
xAxis: {
type: 'datetime',
tickInterval: 7 * 24 * 3600 * 1000, // one week
tickWidth: 0,
gridLineWidth: 1,
labels: {
align: 'left',
x: 3,
y: -3
}
},
yAxis: [{ // left y axis
title: {
text: null
},
labels: {
align: 'left',
x: 3,
y: 16,
formatter: function() {
return Highcharts.numberFormat(this.value, 0);
}
},
showFirstLabel: false
}, { // right y axis
linkedTo: 0,
gridLineWidth: 0,
opposite: true,
title: {
text: null
},
labels: {
align: 'right',
x: -3,
y: 16,
formatter: function() {
return Highcharts.numberFormat(this.value, 0);
}
},
showFirstLabel: false
}],
legend: {
align: 'left',
verticalAlign: 'top',
y: 20,
floating: true,
borderWidth: 0
},
tooltip: {
shared: true,
crosshairs: true
},
plotOptions: {
series: {
cursor: 'pointer',
point: {
events: {
click: function() {
hs.htmlExpand(null, {
pageOrigin: {
x: this.pageX,
y: this.pageY
},
headingText: this.series.name,
maincontentText: Highcharts.dateFormat('%A, %b %e, %Y', this.x) +':<br/> '+
this.y +' visits',
width: 200
});
}
}
},
marker: {
lineWidth: 1
}
}
},
series: [{
name: 'All visits',
lineWidth: 4,
marker: {
radius: 4
}
}, {
name: 'New visitors'
}]
});
});
});
Many Thanks,

First of all I see that you have empty series.data which doesn't exists. In case when you download data by ajax, you push your data to series or use i.e setData() / addPoint() functions. All of them are documented here: http://api.highcharts.com/highcharts
I advice to familiar with article about preprocessing data http://docs.highcharts.com/#preprocessing