I want my chart to have a "fixed zoom" on y-axis on certain interval. I don't know if that's a right way to describe it, but I'll give you an example.
This is how my chart looks like right now:
While I'm fine with my x-axis (hours) generating automatically, I want my y-axis not based on series (now it's 8k, 10k. 12k etc - so thats 2k interval), but on fixed value, for example 5k (5k, 10k, ... up to 50k)
Found the solution! It's yAxis.tickInterval.
chart = new Highcharts.Chart
yAxis:
tickInterval: 5000
Coffeescript Above.
Related
I am playing with a chart with a one data point.
Here is the jsfiddle demo: http://jsfiddle.net/mddc/mfwyoj7j/7/
I notice that if I add
minRange: 1
-1 or 1 will show up on both sides of the data point on the X axis.
I am new to Highcharts. What does minRange=1 mean here? If it is useless, then it should not create any problems, right?
Is this a bug in Highcharts?
Thanks and regards.
See highcharts API doc here: http://api.highcharts.com/highstock#xAxis.minRange
minRange: the minimum range to display. The entire axis will not be allowed to
span over a smaller interval than this. For example, for a datetime
axis the main unit is milliseconds. If minRange is set to 3600000, you
can't zoom in more than to one hour.
So it is used to limit the zoom-in: you will not be able to zoom if the xAxis display less than 1
I have a series of data collected every 15 minutes for a few weeks. Unfortunately, there's a week of missing data in the middle. This is just a fact of my business. When I use Highcharts to chart this data, it compresses the x-axis (time), skewing the chart. For example, the x-axis has major ticks every 2 hours until the missing week. Then it jumps to major ticks of days.
Regardless of the data, I need the x-axis to remain consistent. If this causes a large gap in the diagram, so be it.
I have skimmed the documentation but found nothing. If anyone could direct me to the relevant page that would be great. Thanks!
Refer: https://stackoverflow.com/a/13439281/1566575
You will need to set the xAxis.ordinal property to false, this is true by default. True value indicates the points should be placed at fixed intervals w.r.t space (pixels), and False changes points to be placed at fixed intervals w.r.t. time
xAxis: {
ordinal: false
}
Linear x-axis | Highstock # jsFiddle
Docs:
http://api.highcharts.com/highstock#xAxis.ordinal
I have a highcharts column chart with an x-axis for an entire year. Its type is datetime and its min/max is from 2014-01-01 to 2014-12-31.
Why is the tick/label for Jan 2015 displayed?
Full source at http://jsfiddle.net/nkjm2691/1/
I tried a number of things like setting the end date to Date.UTC(2014, 11, 31, 23, 59, 59) and experimenting with tickInterval. What I need eventually is a monthly tick (i.e. irregular interval) and the labels centered between the ticks. Using some voodoo logic to calculate the offset only ever works if the chart has a fixed width.
Quite surprisingly doing more or less the same with a chart of type areaspline works fine: http://jsfiddle.net/fm86v8fe/
I also checked a number of related SO questions like Is there a reliable way to have a 1 month auto generated tick interval with high charts? and HighCharts xAxis - tickInterval for month but they don't solve my problem.
You posted this JSFiddle. Just changing from type: 'column' to type: 'line' removes he label. Why?
That is because any chart type that is "column like" has a pointRange. This is defined differently depending on context, but for your datetime x-axis it is (API):
On linear and datetime axes, the range will be computed as the distance between the two closest data points.
It is this pointRange that causes your column to have their specific width. They have a span across the x-axis. As you can see on your chart each column has a range of a week, not just a single millisecond (which is the case for line-charts, and similar).
From my understanding this causes Highcharts to take some extra space to somehow better suit the point range of the chart points.
There are several things you can do. You can manually override the pointRange like this:
series: { pointRange: 1, data: ... }
This will make each column only 1 millisecond thick, and removes the label. You can fix the width with pointWidth:
series: { pointRange: 1, pointWidth: 10, data: ... }
Note however that this is static, so if columns suddenly get too close they'll start overlapping. Here's a JSFiddle demonstration.
Also you could do nothing and just set the max to be far enough back in time for pointRange not to include too much extra space, like this:
xAxis: { min : Date.UTC(2014, 0, 1), max : Date.UTC(2014, 11, 28) }
Note here that Highcharts seems to add more space once you go over to the 29th of December. Unfortunately I'm not exactly sure how this spacing is chosen (the 29th is a Monday..?).
Sebastian suggested some solutions that don't involve this type of manipulation at all. The chosen "solution" depends on the other requirements and desired behavior of the chart.
Set a max date as 1.12, remove time and set maxPadding as 0 value. In case when you use a tiem (23:59:59) tick Interval cannot be calculated properly. Second solution is using tickPositioner
https://jsfiddle.net/nkjm2691/50/
I have a 'datetime' chart which has one point per day. So my requirement is to have each date displayed on x-axis and value plotted for each date. So I have set the tickinterval as 1 day (24*3600*1000) as follows:
http://jsfiddle.net/vuf5e/1/
However, the x-axis seems to show only Aug28th and chart has two points on either side of it instead of showing one point for Aug27th and another one for Aug28th.
I tried using tickPositions and the chart appears as follows:
http://jsfiddle.net/vuf5e/2/
What is wrong here?
One of the numbers is wrong.
the second position in the tick is 137766608975 but then in the data is 1377666808975 which has a full digit more than the other.
You are in fact missing an 8 somewhere in the middle.
so basically the number on the second tick become smaller than the first one.
[...]
xAxis: {
type:'datetime' , tickPositions:[1377601929269, **137766608975**]
},
series:[{"yAxis":0,"name":"Device_INTERFACE_in_octets--.2","data":[[1377601929269,5.8583],[**1377666808975**,6.6278]]}]
});
});
I have the following issues while working with stacked column charts:
Firstly,look at the following chart:
http://jsfiddle.net/QnuEA/
If you notice the time range is wide, the columns appear too thin. I know that setting pointWidth is one option. But actually the chart should be appearing as they would if the time interval range is narrow as follows:
http://jsfiddle.net/QnuEA/1/
The expectation is x-axis interval must adjust itself.
Secondly, for the same chart as above, if the width of the chart is more (say 900 px or so), the x-axis seems to have a lot of empty space before the first tick.
Is there a solution to this? (I am unable to post more than 2 jsfiddle links here.So I am not providing a link for this issue)
You need to define pointRange as timestamp
http://jsfiddle.net/QnuEA/3/