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  1. It would be nice to have a default formatter for displaying numbers in scientific notation

    3 votes
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  2. Provide a property for donut chart to show the aggregated total exactly at the center of donut

    var colors = Highcharts.getOptions().colors,
    categories = [
    "Chrome",
    "Firefox",
    "Internet Explorer",
    "Safari",
    "Edge",
    "Opera",
    "Other"
    ],
    data = [
    {
    "y": 62.74,
    "color": colors[2],
    "drilldown": {
    "name": "Chrome",
    "categories": [
    "Chrome v65.0",
    "Chrome v64.0",
    "Chrome v63.0",
    "Chrome v62.0",
    "Chrome v61.0",
    "Chrome v60.0",
    "Chrome v59.0",
    "Chrome v58.0",
    "Chrome v57.0",
    "Chrome v56.0",
    "Chrome v55.0",
    "Chrome v54.0",
    "Chrome v51.0",
    "Chrome v49.0",
    "Chrome v48.0",
    "Chrome v47.0",
    "Chrome v43.0",
    "Chrome v29.0"
    ],
    "data": [
    0.1,
    1.3,
    53.02,
    1.4,
    0.88,
    0.56,
    0.45,
    0.49,
    0.32,
    0.29,
    0.79,
    0.18,
    0.13,
    2.16,…

    1 vote
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  3. Let's say I have a chart similar to http://jsfiddle.net/k7n8cf8m/
    There are two lines with almost same data.

    I've got a question if is there a possibility, to present those lines joined together, one above, second right below (without padding or anything, just 2 glued together lines). I mean it shouldn't overlap each other, but display like a rainbow instead.

    Something like that: http://jsfiddle.net/BlackLabel/3goqaqfj/
    But without changing data values.

    Is there a chance to introduce something like that in near future?

    6 votes
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    This is a bit similar to the minPointLength option – https://api.highcharts.com/highcharts/series.column.minPointLength, which aims to ease readability when points overlap. It also has the same logical problem: If a small offset is added for multiple series or points after each other, eventually the points will be drawn off scale.

    Here’s a small plugin I wrote that offsets the series by an optional amount of pixels per the series index: http://jsfiddle.net/highcharts/vgdga7vw/1/. As you see, it doesn’t actually consider if any offset is necessary, plus when you have a lot of series it will be off scale.

  4. It would be nice to have an option to export chart (as PDF) to datauri string instead of file.
    This can be done now indirectly, by obtaining chart's underlying svg, calling svg2pdf and finally using jsPDF doc.output('datauristring')
    [which returns the base64 dataUri] instead of downloading file.

    Maybe as an option in 'exporting' object?
    Or by exposing new method, i.e. Highcharts.exportToUri() ?

    Or maybe there's some simpler way that I am not aware of?
    Thank you.

    2 votes
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  5. It would be interesting to have the width of the bars adjusted automatically. Something similar like this: https://js.devexpress.com/Demos/WidgetsGallery/Demo/Charts/AutoCalculatedBarWidth/AngularJS/Light/

    4 votes
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  6. Create a service similar to https://pdfcrowd.com/.

    Create an API endpoint that can convert settings into a file format (PNG) that is charged either per conversion or annually.

    The API would take our chart settings and chart data, plot the chart on your server side and return to the client a PNG (or other supported file types) of the chart we requested.

    4 votes
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  7. If I've got a sparse dataset (e.g. to save space, duplicate data points are omitted), a line graph still represents the data accurately, however the tooltip only appears over the actual data points.

    Would it be possible for the tooltip to interpolate the data at the mouse pointer's position so as to show a value whether there's an actual data point there or not?

    42 votes
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  8. When showing a line on scatter chart it can be hard to tell where the line started and where it ended.

    Having a dashStyle option that was similar to plotOptions.scatter.dashStyle = 'dot' except that instead of a dot it was a rotated triangle that pointed in the direction the line was going would be awesome.

    I saw some hacks for turning the entire line into one long arrow but that isn't what I was looking for.

    1 vote
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  9. A chord diagram or an extended diagram is basically used to show data flow between multiple entities. We can have a circular chord diagram or an extended one.
    Currently we are achieving it through d3.js, but that requires lot of complex coding

    18 votes
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  10. As for me tooltip functionality is quite restrictive and not very convenient for now (5.0.14).
    1. I cannot select text on tooltip.
    I found some examples where we just copy original tooltip, show it and then do e.preventPropagation for mouseDown, mouseup and mousemove events on tooltip area.
    but maybe it can be done by some parameters?

    1. Suitable html generator for html tooltip - it is inconvenient to generate html with concatenation of string na respective params. And hard to apply event listeners on elements of html-tooltip. Maybe some helper functions to add?

    2. continue to show tooltip until tooltip-are-mouse-leave event -…

    1 vote
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  11. We have a requirement to generate Smith Charts. Can Highcharts support Smith Charts?

    1 vote
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  12. there should be standard events like mouseOut, mouseOver, click , etc. available for axis labels. currently it is possible to do it through custom events plugin, but it is not compatible with latest highcharts

    1 vote
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  13. Pagination facility providing is most important for bar charts

    3 votes
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  14. PhantomJS/HighCharts at the moment supports only chart by chart server side image generation by passing options of a chart.

    It would be nice that when someone passes multiple options PhantomJS and HighCharts consider this as each option as a new chart and stack them together into one image.

    Only solution at the moment is that we generate one by one chart and combine them seperetly which i think should be done already on PhantomJS/HighCharts.

    3 votes
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  15. I would like the option to show a the numbers for a single data point and its associated margin of error (M.o.E.) bar in a single unified tooltip, as in:

    [ Apples: 67.5 (M.o.E.: 63.4 - 71.6) ]

    I would like this rather than having the data points and margins of error on separate tooltips or having data for all series on the same shared tooltip.

    1 vote
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  16. Simple breaks may be quite confusing now because the reader of the chart has no indications of the occurrence of a break in the axis. It would be very nice to add to the simple break an axis cut by too slashes same way as shown on the Y axis of this sample : http://jsfiddle.net/gh/get/jquery/2/highcharts/highcharts/tree/master/samples/highcharts/axisbreak/break-visualized/

    It would be very nice to have such feature configurable through highcharts editor

    visualization of the break in the graph itself is a more advanced feature that could be addressed in javascript because it depends much on the type of graph.

    3 votes
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    Yes I agree this should be the default visualization. We need an option to turn it on or off though, as it would probably become too obtrusive for stock chart x axes where there is a break every night. Also, the Y axis by default has no line width, so the break by default would be invisible.

    Any suggestions?

  17. We have a requirement to color the bubble depends on the size. Basically, if the value is high, it will have a darker color and for a low value, a lighter color.

    3 votes
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  18. If you have a chart such as the following: https://s3.postimg.org/juxazrv5f/Screen_Shot_2016_08_19_at_20_19_08.png
    And you change that yaxis 0 value to non-zero, i.e. 10, then the following occurs: https://s3.postimg.org/jdop36c8z/Screen_Shot_2016_08_19_at_20_18_27.png

    We urgently need a hack/workaround to once again display the rounded corners. We are using Torsteins rounded-corners plugin to achieve this.

    3 votes
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  19. When there is no data to display, the message shows up on the chart. But there are things users might want to do in such a situation. For example, I have custom navigation buttons which lose meaning when there is no data. Some might even want to remove the context menu button. It would be great if there'd a callback where you could add/remove elements to/from the chart.

    7 votes
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  20. Idea is shown here: http://waszczyk.com/resources/rectandleDoNotDelete.PNG Top edge indicates a maximum from chart and bottom edge shows a minimum with respect to input- T1 and T2. The background color is faded and custimizable.

    3 votes
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