Values not Showing

[Benedikt]

I am appending values to the time series but only seeing a line in the chart after a huge delay (minutes).

The data is there when I look at the object.

When updating faster, values are shown immediately.

Here is part of the code:

tileContents.chart = new SmoothieChart({millisPerPixel:45, interpolation:'line',tooltip:true, grid:{fillStyle:'transparent'}, responsive:true, labels:{fillStyle:'#000000'}});
tileContents.chart.streamTo($('#' + tileContents.UUID).find('#canvas')[0],0);
tileContents.chartTimeSeries.push(new TimeSeries());
tileContents.chart.addTimeSeries(tileContents.chartTimeSeries[0], {lineWidth:2,strokeStyle:'#ae25f7'});

this.chartTimeSeries[0].append(timeStamp, data1.value);

Any ideas what I am experiencing? Bug or user error?

[Drew Noakes]

The 'timeStamp' you append to your series must be correct on the client computer (i.e. relative to the browser's concept of 'now').

If your timestamp comes from the server, then it may be out of sync with the client and can cause the kinds of delay you describe. If that's the case, you'll need to determine the offset on your first data point and apply that offset to every timestamp.

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[Benedikt]

Thanks for your help, that might be it, will test tomorrow.

Am Samstag, 11. Mai 2019 19:38:37 UTC+2 schrieb Drew Noakes:

The 'timeStamp' you append to your series must be correct on the client computer (i.e. relative to the browser's concept of 'now').

If your timestamp comes from the server, then it may be out of sync with the client and can cause the kinds of delay you describe. If that's the case, you'll need to determine the offset on your first data point and apply that offset to every timestamp.

On Fri, 10 May 2019 at 02:16, Benedikt <13bma...@gmail.com> wrote:

I am appending values to the time series but only seeing a line in the chart after a huge delay (minutes).

The data is there when I look at the object.

When updating faster, values are shown immediately.

Here is part of the code:

tileContents.chart = new SmoothieChart({millisPerPixel:45, interpolation:'line',tooltip:true, grid:{fillStyle:'transparent'}, responsive:true, labels:{fillStyle:'#000000'}});
tileContents.chart.streamTo($('#' + tileContents.UUID).find('#canvas')[0],0);
tileContents.chartTimeSeries.push(new TimeSeries());
tileContents.chart.addTimeSeries(tileContents.chartTimeSeries[0], {lineWidth:2,strokeStyle:'#ae25f7'});

this.chartTimeSeries[0].append(timeStamp, data1.value);

Any ideas what I am experiencing? Bug or user error?

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