highcharts, four aeraranges with linear gradients - css

Question

I'm trying to create chart in Highcharts with four arearanges and one line. I'm doing my best to get something like on image:
arearanges
I'v managed to do something like this:
$(function () {
var rangesHI = [
[1246406400000, 90, 75],
[1248998400000, 90, 75]
],
rangesME = [
[1246406400000, 75, 60],
[1248998400000, 75, 60]
],
rangesNO = [
[1246406400000, 60, 35],
[1248998400000, 60, 35]
],
rangesLO = [
[1246406400000, 35, 15],
[1248998400000, 35, 15]
],
averages = [
[1246406400000, 31.5],
[1246492800000, 32.1],
[1246579200000, 33],
[1246665600000, 33.8],
[1246752000000, 31.4],
[1246838400000, 31.3],
[1246924800000, 38.3],
[1247011200000, 35.4],
[1247097600000, 36.4],
[1247184000000, 47.7],
[1247270400000, 47.5],
[1247356800000, 37.6],
[1247443200000, 47.7],
[1247529600000, 46.8],
[1247616000000, 47.7],
[1247702400000, 46.3],
[1247788800000, 47.8],
[1247875200000, 48.1],
[1247961600000, 57.2],
[1248048000000, 54.4],
[1248134400000, 53.7],
[1248220800000, 55.7],
[1248307200000, 54.6],
[1248393600000, 55.3],
[1248480000000, 45.3],
[1248566400000, 55.8],
[1248652800000, 65.2],
[1248739200000, 74.8],
[1248825600000, 44.4],
[1248912000000, 55],
[1248998400000, 43.6]
];
$('#container').highcharts({
title: {
text: null
},
xAxis: {
type: 'datetime'
},
yAxis: {
max:90,
min:20,
title: {
text: null
}
},
series: [{
name: 'RH',
data: averages,
zIndex: 1
}, {
data: rangesHI,
type: 'arearange',
lineWidth: 0,
fillColor: {
linearGradient: [0, 0, 0, 300],
stops: [
[0, 'rgba(255,0,0, 0.2)'],
[1, 'rgba(255,0,0, 1)']
]
},
zIndex: 0
}, {
data: rangesME,
type: 'arearange',
lineWidth: 0,
fillColor: {
linearGradient: [300, 0, 300, 400],
stops: [
[0, 'rgba(237,230,126, 0.2)'],
[1, 'rgba(237,230,126, 1)']
]
},
zIndex: 0
}, {
data: rangesNO,
type: 'arearange',
lineWidth: 0,
fillColor: {
linearGradient: [500, 0, 500, 600],
stops: [
[0, 'rgba(104,217,91, 0.2)'],
[1, 'rgba(104,217,91, 0.7)']
]
},
zIndex: 0
}, {
data: rangesLO,
type: 'arearange',
lineWidth: 0,
fillColor: {
linearGradient: [0, 0, 0, 220],
stops: [
[0, 'rgba(91,187,217, 0.2)'],
[1, 'rgba(91,187,217, 0.7)']
]
},
zIndex: 0
}]
}, function (chart) {
chart.renderer.text('EKSTREMALNA', 80, 95).css({
fontSize: '16pt',
color: 'rgba(255,0,0, 1)'
}).add();
chart.renderer.text('WYSOKA', 80, 145).css({
fontSize: '16pt',
color: 'rgba(237,230,126, 1)'
}).add();
chart.renderer.text('KOMFORTOWA', 80, 225).css({
fontSize: '16pt',
color: 'rgba(104,217,91, 01)'
}).add();
chart.renderer.text('NISKA', 80, 305).css({
fontSize: '16pt',
color: 'rgba(91,187,217, 1)'
}).add();
});
http://jsfiddle.net/qazopap4/1/ but this is far from what I'v expected.
I can't make linear gradient for each arearange separately.

Answer 1

You can use plotBands which allows you to apply gradients.
yAxis: {
plotBands: [{
from: 60,
to: 90,
color: {
linearGradient: [0, 0, 0, 300],
stops: [
[0, 'rgba(255,0,0, 0.2)'],
[1, 'rgba(255,0,0, 1)']
]
}
}],
max: 90,
min: 20,
title: {
text: null
}
},
Example: http://jsfiddle.net/pag5qgsm