Highcharts Javascript API

Highcharts Javascript API

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  1. 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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  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('http://www.w3.org/2000/svg', 'svg'),
    loc = location;
    attr(box, {
    width: width,
    height: height,
    'shape-rendering': 'crispEdges', //suggest to add this by config

    7 votes
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  3. 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

    7 votes
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    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.

  4. 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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  5. Allow do disable date input of rangeSelector without hide one

    7 votes
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  6. 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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  7. 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.

  8. 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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  9. It would be great if there were a feature to add axis labels to the existing Sankey chart at each level. Something like this: https://i.stack.imgur.com/cYsNT.png

    I notice that this has been previously mentioned in the Sankey Diagram thread (https://jsfiddle.net/7aa18mws/). However, in-built support for this on multiple levels would be great.

    5 votes
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  10. 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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  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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    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. 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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  15. Styled mode is great but often with dynamically generated charts (i.e. when a user can customise a chart live) it would useful to be able to allow colours to be set on series. In our case we have a common look for all charts but also a colour picker.

    Has the option of being able to set series colour in the same way as you would with styled mode turned off been considered? There's an argument that setting the series colour is data not presentation and therefore should be permissible with styled mode is enabled.

    3 votes
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    Yes I follow the argument – there are also series where the color is crucial, like heatmaps with a color axis.

    In styled mode the idea is that you set the colorIndex instead of a color on the series, so you should be able to set individual series colors by linking the result of the color picker to the colorIndex of the series.

  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. 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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  18. 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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  19. 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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  20. 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?

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