1068 results found

1. It would be a useful enhancement if other types (EMA, DEMA, TEMA, WMA) of moving average could be selected as a param for Bollinger Bands
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2. CSV Export set number of decimal places

   I can set the decimal point for CSV exports, but there's no way to set the number of decimal places.

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3. More control over series states and state change

   Right now series.states looks like the intuitive way to handle a lot of common situations, but its options are extremely limited. The only way to achieve many basic effects is to use mouse events, which do not always work well. It is also impossible to declaratively set a series' state through the API, instead this requires using the (undocumented) .setState() method.

   This can become a real nightmare especially if using Highcharts inside a declarative framework like React or Vue where directly calling update methods on chart elements is problematic.

   What I would propose is:

   1. Implement more options in series.states -- ideally almost all presentational aspects of the series should be able to change by state, especially things like dataLabels and zIndex. Right now, achieving simple effects like "move a series to the top of the draw order when it is hovered" or "show all markers on a series when it is hovered" are needlessly hard to achieve, especially in React/Vue.

   2. Allow series state to be set declaratively through a series.state option. If series.state is not undefined, then Highcharts should treat that as the current state of the series. This allows controlling state from outside of Highcharts. Example use case: implementing a custom legend component outside of Highcharts that controls the state of series inside the chart.

   3. Add event hooks for state changes. I should be able to trigger side effects when a series is hovered/selected/shown, not just when the user mouses over or out. Something like events.onStateChange(oldState, newState) (or have .oldState and .newState on the event object).

   Right now series.states looks like the intuitive way to handle a lot of common situations, but its options are extremely limited. The only way to achieve many basic effects is to use mouse events, which do not always work well. It is also impossible to declaratively set a series' state through the API, instead this requires using the (undocumented) .setState() method.

   This can become a real nightmare especially if using Highcharts inside a declarative framework like React or Vue where directly calling update methods on chart elements is problematic.

   What I would propose is:

   1. Implement more options in series.states --… more

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4. Allow null values in highmaps

   When a value is coded null in a map, it is not displayed in the tooltip. I usually code missing values with null values (null), not zero values (0).
   See https://jsfiddle.net/martindfurrer/xakgs53o/9/

   I propose to allow null values in map, mabbubble and mappoint graph types, and display them in the tooltip and data labels, similar to what is already possible in heatmap graphs, for example.

   This would elegantly allow to distinguish null values from zero values, and display them correctly.

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5. Add Custom Data to View DataTable

   Add the ability to add custom data to view data table.
   Specifically add custom mean/mid/mode value from dumbbell chart to view data table .

   https://jsfiddle.net/BlackLabel/gek5071L/

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6. Tooltip formatter y value for stacked area should show the value corresponding to the y axis not the raw value

   If you have 3 stacked series each with a value of 10, using point.y will show 10,10, and 10 in the tooltip. It should instead show 10,20,30. It seems that point.y and point.value are the same thing

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7. Hello Team, If we use yAsix uniqueNames:true, The chart size increases abnormally. Please Fix this We all need Grouping task with resource.

   Hello Team, If we use yAsix uniqueNames:true, The chart size increases abnormally. Please Fix this We all need Grouping task with resource.

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8. Re-render Axis when using the update methop.

   When we create a chart the axis take in account the values of min, max and/or our series.

   But if we try to call .update() the tickPositions and tickInterval are not recalculated, neither when we didn't set those configs on the creation.

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9. annotation copy and Paste

   it would be really nice to have copy and paste selected annotation on screen. many of our customers are asking for it..

   like here https://www.tradingview.com/chart/

   add annotation and select and press ctrl + c just like normal copy and paste..

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10. Multiple link display between the same nodes in a Network Graph

    Currently, if two nodes of a network-type graph are connected by multiple edges (or links), only the last of these links in the data series will be displayed, as it will appear on top of all others.

    This is problematic in a case where a network graph should include multiple links of different styles, e.g. different colors, line styles, with different link labels, etc.

    See example jsfiddle, where a solid teal and dotted red link are obscured by a solid red one :

    https://jsfiddle.net/pqvemxsb/1/

    Because all links are straight lines and their shape cannot be changed, it appears impossible to circumvent this issue.

    For network graphs indicating different sorts of relationships between nodes, multiple link display would be an essential feature to add.

    Currently, if two nodes of a network-type graph are connected by multiple edges (or links), only the last of these links in the data series will be displayed, as it will appear on top of all others.

    This is problematic in a case where a network graph should include multiple links of different styles, e.g. different colors, line styles, with different link labels, etc.

    See example jsfiddle, where a solid teal and dotted red link are obscured by a solid red one :

    https://jsfiddle.net/pqvemxsb/1/

    Because all links are straight lines and their shape cannot be changed, it appears impossible to… more

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11. Fill between lines with colour depending on order

    I would like to fill a space between two lines that generally move up and down, but sometimes one is above the other, and sometimes the other way. And I'd like the fill colour to reflect which line is on top.

    Take the following as an example.

    https://jsfiddle.net/xczdfkjf/1/

    Where the lower and upper ends of the range cross over, between 6 Jul and 7 Jul, I'd like the fill colour to change.

    I originally posted this question here back in 2016, and have seen similar questions/requests, but still in 2021 it is not possible :( https://stackoverflow.com/q/41292433/4070848

    The answer in the above stackoverflow is neat, but it doesn't fit my requirements because I need the lines to be splines not straight lines.

    Plus, I feel that there should be a simple series option for this, rather than having to rely on really complex line-crossing algorithms and zones (my chart already has zones along the x axis for other reasons, e.g. to suppress display of parts of lines that just flatline along zero, so to add more into the mix would be a nightmare).

    I would like to fill a space between two lines that generally move up and down, but sometimes one is above the other, and sometimes the other way. And I'd like the fill colour to reflect which line is on top.

    Take the following as an example.

    https://jsfiddle.net/xczdfkjf/1/

    Where the lower and upper ends of the range cross over, between 6 Jul and 7 Jul, I'd like the fill colour to change.

    I originally posted this question here back in 2016, and have seen similar questions/requests, but still in 2021 it is not possible :( https://stackoverflow.com/q/41292433/4070848

    The answer in the… more

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12. overscroll update

    Hi everyone, how are you doing well?
    I have terrible with overscroll update
    When project start, I displayed highchat and after 10s, I am going to reset overscroll
    Could you please help me about this?
    Thanks in advance

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13. Boost module for networkgraph

    Just 500 nodes in networkgraph cause the browser lag for a bit. Can you please implement boost module to support for networkgraph?

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14. minTickAmount on Axis

    In trying to create graphs with Highcharts, I've found that once a graph gets sized small enough (though still reasonably sized that its not uncommon), the axis usually only gives out 1 single tick mark value.

    I want to avoid single tick marks, because with only 1 tick mark, a person viewing the graph loses the sense of scale that comes with multiple tick marks which specifies a physical distance on the graph as a range of numbers.

    Id like to see a minTickAmount option added to the Axis, such that specifying it prevents Highcharts from trying to give an axis fewer ticks than this option allows. The need for this option instead of using tickInterval/tickPositioner/tickPositions stems from the desire to still let Highcharts fully decide what ticks to place so they're completely dynamic, just setting a limit to how few ticks it can choose.

    In trying to create graphs with Highcharts, I've found that once a graph gets sized small enough (though still reasonably sized that its not uncommon), the axis usually only gives out 1 single tick mark value.

    I want to avoid single tick marks, because with only 1 tick mark, a person viewing the graph loses the sense of scale that comes with multiple tick marks which specifies a physical distance on the graph as a range of numbers.

    Id like to see a minTickAmount option added to the Axis, such that specifying it prevents Highcharts from trying to give an… more

    3 votes

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15. help users optimize very large network graph.

    I would see two ways of doing that. The first one, the most obvious (but maybe not the most straitghtforward for you guys) would be to let users enable the boost module on network graph to allow rendering on GPU.
    The alternative would be to allow to generate the graph asynchronously in the background so it's not blocking and only display it when ready.
    Best regard to the team and keep the good job !

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16. Highstock: step line without vertical lines

    Highstock: Step line connects data with vertical lines. In order to visualize climatological norm values being able to simply depict a horizontal line for one data point would be handy. Could be realized with a step line chart that hides vertical lines.

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17. Gantt Task Dependency Enhancements

    The general suggestion here is to manage a project using task dependencies and durations rather than dates. The simplest enhancement would be to default a task start date to the end of the dependency task. This is the ASAP assumption. It should then be possible to specify the task duration rather than an end date. Next it would be nice to specify the task start as a duration before or duration after a dependency task end date. There are other assumptions (e.g. as late as possible), but ASAP is the most common. Critical path highlighting would also be useful.

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18. Please make highcharts as ES6 module

    Currently if I wish to use one function , whole highcharts.js gets loaded which is increasing bundle size

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19. Highcharts wrapper for Flutter

    Hi,

    Flutter is an emerging technology in the market for Mobile App Development.

    I believe Highcharts wrapper would benefit many developers those are considering to use charts in their Flutter projects.

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20. Export custom range data (through navigator) to excel

    Currently, the entire data series is being exported to excel instead of selected custom range by navigator. Image and pdf formats are working fine.

    Is there any way to export only current plotted series to excel?

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