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by torstein.honsi
Wed Oct 22, 2014 7:33 am
Forum: Highcharts Usage
Topic: Rendering Charts as SVG On Server Not Using Highcharts.js
Replies: 4
Views: 1807
 
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Re: Rendering Charts as SVG On Server Not Using Highcharts.j

Highcharts is included in Highstock in its entirety, so using the "Chart" constructor in Highstock will give the same results as if you were using Highcharts. It doesn't matter whether we're running Highstock or Highcharts, except Highstock has more features (like the StockChart constructo...
by torstein.honsi
Thu Oct 02, 2014 1:38 pm
Forum: Highcharts Usage
Topic: Windrose - Thanks
Replies: 3
Views: 1232
 
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Re: Windrose - Thanks

Thanks for your suggestion, I have changed the yAxis.reversedStacks option and the changes will be online in a moment.
by torstein.honsi
Mon Sep 01, 2014 11:07 am
Forum: Highcharts Usage
Topic: Logging Highcharts exceptions
Replies: 10
Views: 3391
 
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Re: Logging Highcharts exceptions

One possible solution would be to expose the error handler like below. It would allow you to take control and add error codes to your log, and also to load messages from the errors.xml file . /** * Provide error messages for debugging, with links to online explanation */ error = function (code, stop...
by torstein.honsi
Mon Aug 18, 2014 1:36 pm
Forum: Highcharts Stock
Topic: Highchart 1.7 million data points loadin example fails?
Replies: 2
Views: 895
 
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Re: Highchart 1.7 million data points loadin example fails?

It should be fixed now, thanks for reporting.
by torstein.honsi
Tue Aug 12, 2014 6:40 pm
Forum: Highcharts Usage
Topic: memory usage increases when recreating chart
Replies: 9
Views: 2208
 
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Re: memory usage increases when recreating chart

New finding: running the Highcharts Renderer alone, without a chart object, also displays the same pattern with leaks in jQuery 2.x, but no leaks in 1.x. The following sample creates a renderer instance and 1000 rectangles for each run:
http://jsfiddle.net/highcharts/PL37p/9/
by torstein.honsi
Tue Aug 12, 2014 9:28 am
Forum: Highcharts Usage
Topic: memory usage increases when recreating chart
Replies: 9
Views: 2208
 
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Re: memory usage increases when recreating chart

For the records: My own test that starts with 10 iteration and a blank page, then runs 10 iterations at the time: http://jsfiddle.net/highcharts/PL37p/8/
by torstein.honsi
Tue Aug 12, 2014 9:27 am
Forum: Highcharts Usage
Topic: memory usage increases when recreating chart
Replies: 9
Views: 2208
 
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Re: memory usage increases when recreating chart

I have now spend hours exploring this, but haven't found a fix yet (though I have a workaround). The problem seems to lie with the new Data object in jQuery 2.x, and it's cache property. When running 2.x, a lot of arrays are leaked that can be traced back to the Data object (as seen in Comparison in...
by torstein.honsi
Mon Aug 11, 2014 11:08 am
Forum: Highcharts Usage
Topic: Show negative values on y axis using logarithmic type
Replies: 3
Views: 1660
 
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Re: Show negative values on y axis using logarithmic type

Negative values can't be plotted on a log axis, because by nature, the axis will only show positive values. For example, if the max tick is 100, then the ticks below it will be 10, 1, 0.1, 0.01, 0.001, 0.0001 etc. As you see, it will become closer and closer to 0, but never actually be 0 or negative...
by torstein.honsi
Fri Aug 01, 2014 8:44 am
Forum: Highcharts Stock
Topic: Memory leak in column series updating dynamically
Replies: 7
Views: 3864
 
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Re: Memory leak in column series updating dynamically

I have been running this for more than an hour now in Chrome 35. Please see the attachment. In the memory profile, the memory seems to be stable over time. The sawtooth pattern show memory usage piling up, then garbage collection reducing it. The green graph shows total number of DOM elements, which...
by torstein.honsi
Thu Jul 31, 2014 11:56 am
Forum: Highcharts Usage
Topic: memory usage increases when recreating chart
Replies: 9
Views: 2208
 
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Re: memory usage increases when recreating chart

Are there specific options you are using that makes the chart leak? I tried with a basic chart but it doesn't seem to leak any DOM nodes. Here's what I do: 1. Open http://jsfiddle.net/highcharts/wqdNa/ with Chrome. 2. Click the "Recreate" button to display a chart. 3. In the Developer Tool...
by torstein.honsi
Thu Jul 31, 2014 11:46 am
Forum: Highcharts Stock
Topic: Memory leak in column series updating dynamically
Replies: 7
Views: 3864
 
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Re: Memory leak in column series updating dynamically

I've been running the page for like 30 minutes but it seems like garbage collection is picking up the leaks periodically. Are you able to specify more detailed how you see the leak?
by torstein.honsi
Thu Jul 31, 2014 10:40 am
Forum: Highcharts Stock
Topic: Error when highstock.js included more than once
Replies: 6
Views: 2371
 
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Re: Error when highstock.js included more than once

Easisest way will be to rename the original namespace, then load your own, rename that and restore the original namespace. Then you are able to run two instances/versions of Highstock/Highcharts on the same page: http://jsfiddle.net/m3Gwq/
by torstein.honsi
Thu Jul 31, 2014 7:53 am
Forum: Highcharts Usage
Topic: Heatmap scaling problem
Replies: 8
Views: 1331
 
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Re: Heatmap scaling problem

Sorry for the late reply!

It's not a bug, it's just that the X axis labels are set to display month only. If we add the date it makes more sense: http://jsfiddle.net/v3SwV/1/

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