I'm using highcharts and trying to add labels to the grid lines of a polar chart, however, I can only add labels to the first axis (which is the y-axis in the cartesian coordinate system).
Polar charts are not well covered (as well as labels on grids) in the highcharts docs. My current approach is placing the labels manually on the correct positions, which will get cumbersome due to dynamic number of categories and sizes of my chart. Additionally, exporting the chart will not support labels anymore.
Background: Let's assume I am selling tickets for clubbing from Monday to Friday (no weekends, bad choice) for the clubs Green, Black, and Blue. Now, I want to know which club performed best on each day, and also how many tickets are sold in total. Therefore, I'd like to apply different scalings to each axis as attached (manually manipulated). I'm currently normalizing the ticket sales for each day to 0…1 which does the job for comparing each single day, but I can't apply the different labels to the axis.
One way might be to add more panes (with startAngle correction) and yAxes with different scales, so dataLabels are showing as in your image.
Example: http://jsfiddle.net/6b9m7Lvb/
Problem - each yAxis can have only a single pane, each series can have only a single yAxis, so there is one scale for a series - no matter what category.
Another way could be to do the same, but have all yAxes linked to each other, so scale is the same for all. Next it is possible to change axis labels and tooltip display, to match your image.
Example: http://jsfiddle.net/6b9m7Lvb/1/
Related
Suppose I want to create two charts with horizontal bars. The names of the objects are listed on the y-axis and the horizontal bars represents some quantity. The first chart has 100 items and the second chart has 5 items.
When I create the charts the horizontal bars have different widths. I'd like the bars to be the same width across all of my charts.
I know I can try different values for the height parameter to the AddShape function. But that seems time-consuming and unreliable since the number of items can change. I'd like to do something like:
Chart.BarWidth = 10
The "thickness" of each bar will be primarily determined by the number of data points that need to be plotted. The more data points to plot, the thinner the bars will be. There are some options to further tweak them, such as IChartGroup.GapWidth, and you're welcome to try to adjust this so that both charts match. But I suspect that it will be very difficult to do this reliably, particularly if the number of plotted points is expected to change over time.
To maintain the same bar thickness for multiple charts, I think your best option will be to ensure both charts' series refer to the same size range. So if your first chart refers to 100 cells, have your second chart refer to 100 cells, even if only 5 are populated with values. The empty cells should not plot but will still take up space and therefore maintain consistent bar thicknesses between your two charts.
I have a line chart with a limited Y axis (1-5). There are six different lines represented on the chart (3 each from two different users: measuring feeling 1, feeling 2 and feeling 3 from 1-5).
When users enter the same value over time (for instance, ranking feelings 1 and 2 as 5 for several weeks), the two lines completely overlap and you can only see one.
Is there a way I can offset a particular line by say, a couple pixels up and to the right so if there are two different lines representing same values over time, I can see both at once?
Using pointPlacement it is possible to slightly offset each series, so points with the same values do not overlap each other. The tooltip will still work as if points would overlap, so setting shared to true should help.
Example: https://jsfiddle.net/BlackLabel/3mhyojtd/1/
Another option that will allow not shared tooltip would be to use scatter type series with lineWidth set to 2, to imitate line type series.
Example with scatter series: https://jsfiddle.net/BlackLabel/r6pL4f2j/
I have a situation where I need to remove all margins from a highchart and remove the x/y axis so it fills a series of columns in a table completely.
I did that, no problem. Chart goes to the extremes as needed.
What I need now is that pesky yaxis I already removed...but displayed in a table cell outside of the existing highcharts object.
It would seem easy, as though I could just set the overflow property of yaxis to 'visible' and play with the offset...which would work however this would only work if I wanted to re-position the axis within the boundaries of the highchart object. I want him in a different cell entirely.
Is there anyone who has had experience in this situation? Is it going to require me to have a secondary highchart with only a y-axis?
Best answer gets a green check.
EDIT :: I now have dispersed each 'day' into their own column (more bars coming per day [scheduled,actual,etc...]). In order to keep the scales lined up, I manipulate the yAxis:max property and set them all to a derived value.
In the open column (currently w/ text Hourly Trends) is where I would put an additional highchart module with no series data but with the same min/max/tickInterval.
The next big leap will be to see the data is alive and changes w/ schedule. May have to start another thread for that one, no?
Create a new HC object with no data but only the yAxis (making sure it is the right scale, etc). Perhaps add the same series of data to it but hide the series? Add it to the location you want. This seems kludge and not very good practice. Each business use is different but why would you want this?
EDIT based on comment of business rules:
Why not come at this from a different direction and have the individual chart elements (the bars/points/etc) be a single point chart. This way you have one chart per column. You can then set up the yAxis to be text and not worry about the position. If we could see an example of the page layout and the desired result that would help.
I want to make a multiple plots with the x-axis aligned so that we can compare two set of data. I want it to look like this
https://stackoverflow.com/a/11796553/229075
In my case there are some addition requirement that some of the plot are lines and some are bar. So the default scale does not align even if the data range are the same.
I found some good suggestion about "stacking" the charts. It is a little bit complicated but a promising way to try.
https://stackoverflow.com/a/12179023/229075
However I also have other use case that may push the envelop of simple stacking. For example, I'd like to do scatter plot matrix sometime when both x-axis and y-axis have to align like this
http://www.statmethods.net/graphs/images/spmatrix3.png
Rather than putting many chart in one Highchart, this may requires have many separate charts but have better control in how the axis is layout.
If you want to use one one chart, you can use linkedTo option to connect axis.
If you want more simple charts, you can manage to connect axis using event afterSetExtremes, where you can call setExtremes() for another chart.
Apart from the issue I am trying to fix atm, I would like to know how I can make the x-axis labels to draw wherever there is a point drawn. As you can see on the screenshot there are three points in time. So instead of the label "1/10/54' (yes that is year 54) floating nowhere, I want three labels, one below each point.
(Note the 3 points are only for illustration, needs to be expandable.)
If the spacing between the labels will be irregular like your sample screenshot, you'll want to change the axis labeling policy to CPTAxisLabelingPolicyNone or CPTAxisLabelingPolicyLocationsProvided. Both policies require you to provide the tick locations. The first policy also requires you to make custom labels that don't have to be at the same locations as the tick marks while the second will automatically make labels at each tick location using the standard label formatter.