Highcharts Javascript API

Highcharts Javascript API

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  1. I have an application that uses UTC in some graphs and non UTC time in other. It would be great to have is as a configuration.

    7 votes
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    2 comments  ·  Flag idea as inappropriate…  ·  Admin →
  2. http://www.w3.org/TR/SVG/painting.html#ShapeRenderingProperty

    Allow setting of shape-rendering attribute in order to enable speed optimising.

    Code modification example:

    SVGRenderer.prototype = {

    /**
    
    * Initialize the SVGRenderer
    * @param {Object} container
    * @param {Number} width
    * @param {Number} height
    */
    init: function(container, width, height) {
    var box = doc.createElementNS(&#39;<a rel="nofollow noreferrer" href="http://www.w3.org/2000/svg&#39;">http://www.w3.org/2000/svg&#39;</a>, &#39;svg&#39;),
    loc = location;
    attr(box, {
    width: width,
    height: height,
    &#39;shape-rendering&#39;: &#39;crispEdges&#39;, //suggest to add this by config

    7 votes
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    1 comment  ·  Flag idea as inappropriate…  ·  Admin →
  3. At the moment there is no support for 3d line charts with multiple series. Something like this
    https://habrastorage.org/getpro/habr/post_images/c82/1f8/8fe/c821f88fe784e852dab621227f2d1c52.png

    7 votes
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    2 comments  ·  Flag idea as inappropriate…  ·  Admin →
  4. Please provide facility in Api to use shapes like callout box other than the default rectangle shape for tooltips.

    7 votes
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    1 comment  ·  Flag idea as inappropriate…  ·  Admin →
  5. Please, add the possibility of specifying the gapSize in seconds (eg gapTime). It will be very-very useful for timeline charts for Highstocks and Highcharts.

    6 votes
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    2 comments  ·  Flag idea as inappropriate…  ·  Admin →
  6. 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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    1 comment  ·  Flag idea as inappropriate…  ·  Admin →

    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.

  7. Rangeselector is great, but I have only seen it with dates on the x-axis. Is it also possible to have numerical values instead?

    I would expect it to be relatively straight-forward. If not, is there a reason for not supporting it?

    Thanks!

    6 votes
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    1 comment  ·  Flag idea as inappropriate…  ·  Admin →
  8. In a chart with data plotted on and datetime x-axia i would like to position tick labels between ticks rather than on ticks. An when i zoom they still appear in the center to the right of it's tick.

    for example i have a tick on August 1st and another on September 1st and my date formate is MMM. I would like to see 'Aug' centered between the August 1st tick and the September 1st tick

    4 votes
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    0 comments  ·  Flag idea as inappropriate…  ·  Admin →

    This would definately be a nice feature. I believe we would need two types of label placement on datetime axes. Interval labels would be placed between ticks. For example a month name. But if the interval spans two months, like August-September, the label would have to be placed on the 1st of August.

  9. 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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    1 comment  ·  Flag idea as inappropriate…  ·  Admin →
  10. Steps to replicate –
    Click on the following URL -https://www.highcharts.com/gantt/demo/interactive-gantt
    Click on “Edit in JSFiddle”.
    Try dragging “prototype” or any other node.
    Unlike nodes which can be dragged by user at run-time, (dependencies) dependency arrows cannot be dragged by user at run-time.

    4 votes
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    2 comments  ·  Flag idea as inappropriate…  ·  Admin →
  11. With Highchart version 3.0, the chart does not get rendered on mobile orientation change. I am not sure if this is available with Hightchart ?

    4 votes
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    2 comments  ·  Flag idea as inappropriate…  ·  Admin →

    Highcharts doesn’t do anything internally on orientation change, except it reflows if the window.resize event fires.

    You can add your own listeners to orientation change though.

    What does the case look like? Is there a problem?

  12. 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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  13. 4 votes
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  14. Pagination facility providing is most important for bar charts

    3 votes
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    0 comments  ·  Flag idea as inappropriate…  ·  Admin →
  15. 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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    0 comments  ·  Flag idea as inappropriate…  ·  Admin →

    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?

  16. I cannot find a way to link a PlotLine (an average line, for example) to a specific series. I would like to be able to toggle the visibility of such a line with the visibility of a series. There's currently no way to do that easily, and I think that this would be a useful feature for a lot of scenarios.

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

    3 votes
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  18. 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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    under review  ·  1 comment  ·  Flag idea as inappropriate…  ·  Admin →
  19. 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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  20. Chart options strongly depend on chart type and other options. For example, ticks on x/y axis. Depending on what type was chosen (linear, logarithmic, datetime or category), ticks are configured differently.

    And I really suffer when I read docs and don't clearly understand which properties work with others, and which are useless together.

    I suggest you to update docs, or implement chart options validation, or even provide us some external service to check, if given options are valid. In ideal world, if options are not valid, it would say why and maybe suggest something.

    3 votes
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