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Daylight Saving and charts

Posted: Sun Aug 29, 2010 10:14 pm
by 9242184
I need to display both Fastline and Gantt charts over transition periods for daylight saving.

Daylight Saving means that moving from Standard Time to Daylight time there are only 23 hours in the local day, and moving from Daylight Time to Standard time there are 25 hours in the local day (24 hours UTC is constant).

Is there any way to make the date/time axis display say 0130 0300 0330 0400 etc and at the end of daylight saving displaying 0130 0200 0230 0200 0230 0300 0330 etc. All other days between need to the standard 24 hour day and display range is typically anywhere between 6hrs and 58 days.

FYI all plot points are referenced back to UTC.

Regards,

Roy

Re: Daylight Saving and charts

Posted: Mon Aug 30, 2010 6:14 pm
by yeray
Hi Roy,

I think you should do something similar to the shown in the example at All features\Welcome !\Chart styles\Financial\Candle (OHLC)\Axis Labels no Weekends in the feature demo program.

Re: Daylight Saving and charts

Posted: Mon Aug 30, 2010 8:33 pm
by 9242184
Hi Yeray,

Thanks for the suggestion but I am not able to work out how to do " set the x axis value to sequential".

If I delete the data for 4th and 5th September it still displays the 4th & 5th but without data (as expected). The x axis itself remains unchanged.

I am needing to change the way the x axis is displayed, and in the case of the Fastline version actually plot data points using a mouse.

Regards,

Roy

Re: Daylight Saving and charts

Posted: Tue Aug 31, 2010 1:21 pm
by yeray
Hi Roy,

I think you'll have to add your data with your times as labels and show these labels in the bottom axis. If you can arrange a simple example project we can run as-is to reproduce the problem here, we'll try to suggest you how to wok around it.